Non-transition Metal Research Articles

Tailoring the catalytic activity of PrBaFe2O5+δ cathode material with non-transition metal In-doping for solid oxide fuel cells

Double perovskite PrBaFe2O5+δ (PBF) is a promising cathode material for solid oxide fuel cell (SOFCs) due to the favorable catalytic activity and superior electrochemical stability. Herein, to further tailor the oxygen-ion transport kinetics and electrochemical performance, unlike the typical approach through using higher valence, non-transition metal In3+ ion doping is initially investigated to partially replace Fe3+/Fe4+ site, forming the compositions of PrBaFe2−xInxO5+δ (PBFInx, x = 0, 0.05, 0.1, and 0.15). Xray diffraction (XRD) analysis indicates that PBFInx exhibit satisfactory chemical and thermal compatibility with the gadolinia-doped ceria (GDC) electrolyte. Expectedly, the polarization resistance (Rp) of PBFIn0.1 cathode is decreased by approximately 40 % and an anode-supported single cell with PBFIn0.1 cathode yields a 36 % higher peak power density (PPD) at 800 °C compared to that of PBF. Moreover, the single cell using PBFIn0.1 as the cathode can be operated stably at 0.4 A cm−2 for more than 50 h without obvious performance degradation. In addition, the X-ray photoelectron spectroscopy (XPS) results confirm that the low-valence state In3+ introduced into PBF have a positive impact on the oxygen vacancy concentration and boost the oxygen reduction reaction (ORR) activity, thus significantly enhancing the electrochemical performance of the PBF cathode. The results show that the non-transition metal In3+ ion doping is an effective method to improve the performance of the PBF cathode for SOFCs.

Defect Engineered Bi2Te3 Nanosheets with Enhanced Haloperoxidase Activity for Marine Antibiofouling.

Defective bismuth telluride (Bi2Te3) nanosheets, an artificial nanozyme mimicking haloperoxidase activity (hPOD), show promise as eco-friendly, bactericidal, and antimicrofouling materials by enhancing cytotoxic hypohalous acid production from halides and H2O2. Microscopic and spectroscopic characterization reveals that controlled NaOH (upto X = 250µL) etching of the nearly inactive non-transition metal chalcogenide Bi2Te3 nanosheets creates controlled defects (d), such as Bi3+species, in d-Bi2Te3-X that induces enhanced hPOD activity. d-Bi2Te3-250 exhibits approximately eight-fold improved hPOD than the as-grown Bi2Te3 nanosheets. The antibacterial activity of d-Bi2Te3-250 nanozymes, studied by bacterial viability, show 1, and 45% viability for Staphylococcus aureus and Pseudomonas aeruginosa, respectively, prevalent in marine environments. The hPOD mechanism is confirmed using scavengers, implicating HOBr and singlet oxygen for the effect. The antimicrofouling property of the d-Bi2Te3-250 nanozyme has been studied on Pseudomonas aeruginosa biofilm in a lab setting by multiple assays, and also on titanium (Ti) plates coated with the nanozyme mixed commercial paint, exposed to seawater in a real setting. All studies, including direct microscopic evidence, exhibit inhibition of microfouling, up to ≈73%, in the presence of nanozymes. This approach showcases that defect engineering can induce antibacterial, and antimicrofouling activity in non-transition metal chalcogenides, offering an inexpensive alternative to noble metals.

Flash-within-flash synthesis of gram-scale solid-state materials.

Sustainable manufacturing that prioritizes energy efficiency, minimal water use, scalability and the ability to generate diverse materials is essential to advance inorganic materials production while maintaining environmental consciousness. However, current manufacturing practices are not yet equipped to fully meet these requirements. Here we describe a flash-within-flash Joule heating (FWF) technique-a non-equilibrium, ultrafast heat conduction method-to prepare ten transition metal dichalcogenides, three group XIV dichalcogenides and nine non-transition metal dichalcogenide materials, each in under 5 s while in ambient conditions. FWF achieves enormous advantages in facile gram scalability and in sustainable manufacturing criteria when compared with other synthesis methods. Also, FWF allows the production of phase-selective and single-crystalline bulk powders, a phenomenon rarely observed by any other synthesis method. Furthermore, FWF MoSe2 outperformed commercially available MoSe2 in tribology, showcasing the quality of FWF materials. The capability for atom substitution and doping further highlights the versatility of FWF as a general bulk inorganic materials synthesis protocol.

Highly-efficient peroxymonosulfate activation by porous nano-MgO for tetracycline degradation: Surface hydroxyl groups and oxygen vacancies synergetic mediated nonradical process

Heterogeneous transition metal activation of peroxymonosulfate (PMS)-based advanced oxidation processes is limited by low cycling efficiency, secondary contamination, and high toxicity. In this study, a non-transition metal porous nano-MgO catalyst from natural dolomite was synthesized and PMS activation was performed to degrade tetracycline (TC). The nano-MgO/PMS system could achieve TC degradation of 88.09 % within 20 min under the optimum parameters (nano-MgO dosage of 0.2 g·L−1, PMS concentration of 0.3 mM), exceeding the efficiency of the PMS-alone system (11.66 %) by 7-fold, which was related to large specific surface area (41.19 m2·g−1) and defect structure of porous nano-MgO catalysts. As revealed by the quenching tests and electron paramagnetic resonance (EPR) analysis, different from transition metal activation PMS where radicals are generated, singlet oxygen (1O2) was essential in the nano-MgO/PMS oxidation process. Notably, the density functional theory (DFT) calculations demonstrated that nano-MgO with surface hydroxyl groups and oxygen vacancies exhibited the longer O-O bond length (1.47 Å), stronger adsorption energy of PMS (-4.07 eV), and faster electron transfer (0.91 e) than the only nano-MgO with surface hydroxyl groups, proving the surface hydroxyl groups and oxygen vacancies active sites in nano-MgO could synergistically mediate the PMS activation process. Furthermore, the proposed three TC degradation pathways and the toxicity evaluation of intermediates suggested that nano-MgO/PMS system have good ecological safety. This work offers an innovative approach for the cost-effective preparation of porous magnesium oxide with highly efficiency, offering a new perspective for understanding the PMS activation mechanism induced by non-transition metal.

Strain-Prompted Giant Flexo-Photovoltaic Effect in Two-Dimensional Violet Phosphorene Nanosheets.

As a second-order nonlinear optical phenomenon, the bulk photovoltaic (BPV) effect is expected to break through the Shockley-Queisser limit of thermodynamic photoelectron conversion and improve the energy conversion efficiency of photovoltaic cells. Here, we have successfully induced a strong flexo-photovoltaic (FPV) effect, a form of BPV effect, in strained violet phosphorene nanosheets (VPNS) by utilizing strain engineering at the h-BN nanoedge, which was first observed in nontransition metal dichalcogenide (TMD) systems. This BPV effect was found to originate from the disruption of inversion symmetry induced by uniaxial strain applied to VPNS at the h-BN nanoedge. We have revealed the intricate relationship between the bulk photovoltaic effect and strain gradients in VPNS through thickness-dependent photovoltaic response experiments. A bulk photovoltaic coefficient of up to 1.3 × 10-3 V-1 and a polarization extinction ratio of 21.6 have been achieved by systematically optimizing the height of the h-BN nanoedge and the thickness of VPNS, surpassing those of reported TMD materials (typically less than 3). Our results have revealed the fundamental relationship between the FPV effect and the strain gradients in low-dimensional materials and inspired further exploration of optoelectronic phenomena in strain-gradient engineered materials.

Hydrogen permeation of single layer graphene with substitutional metal impurity defects

Two-dimensional materials have recently emerged as promising candidates for blocking hydrogen isotopes, with pristine graphene showing the most promising attributes. Nevertheless, synthesized graphene typically harbors various defects. In this study, we conducted a systematic investigation employing a first-principles approach to assess the permeation of hydrogen through single-layer graphene featuring a single-atom vacancy and diverse substitutional metal impurity defects. Our findings indicate that most substitutional metal impurities in a carbon vacancy effectively enhance graphene's ability to obstruct hydrogen when it harbors vacancy defects, resulting in elevated hydrogen penetration barriers in contrast to graphene with a single-atom vacancy. The hydrogen penetration barriers are contingent upon both the atomic size and the number of outermost electrons in the metal defects. Transition metals characterized by larger atoms and more outermost electrons exhibit heightened penetration barriers, while non-transition metals exhibit a relatively diminished impact of outermost electrons on hydrogen penetration barriers due to reduced charge transfer to graphene. This study underscores the pivotal role played by metal defects in obstructing the infiltration of hydrogen and its isotopes into graphene.

Metal Complexes with N-donor Ligands

Complexes of transition and non-transition metals with a wide variety of N-donor ligands (like ammonia, amines, urea derivatives, Schiff bases, or N-heterocycles) comprise a highly important class of compounds in chemistry, biochemistry, material science, and the chemical industry [...]

A Versatile Synthesis Platform Based on Polymer Cubosomes for a Library of Highly Ordered Nanoporous Metal Oxides Particles.

Polymer cubosomes (PCs) have well-defined inverse bicontinuous cubic mesophases formed by amphiphilic block copolymer bilayers. The open hydrophilic channels, large periods, and robust physical properties of PCs are advantageous to many host-guest interactions and yet not fully exploited, especially in the fields of functional nanomaterials. Here, the self-assembly of poly(ethylene oxide)-block-polystyrene block copolymers is systematically investigated and a series of robust PCs is developed via a cosolvent method. Ordered nanoporous metal oxide particles are obtained by selectively filling the hydrophilic channels of PCs via an impregnation strategy, followed by a two-step thermal treatment. Based on this versatile PC platform, the general synthesis of a library of ordered porous particles with different pore structures , tunable large pore size (18-78nm), high specific surface areas (up to 123.3m2g-1 for WO3) and diverse framework compositions, such as transition and non-transition metal oxides, rare earth chloride oxides, perovskite, pyrochlore, and high-entropy metal oxides is demonstrated. As typical materials obtained via this method, ordered porous WO3 particles have the advantages of open continuous structure and semiconducting properties, thus showing superior gas sensing performances toward hydrogen sulfide.

Structure and activity relationships of AMn2O4 (A = Mg and Zn) spinels in selective catalytic reduction of NOx with NH3

Mn-based spinel as a catalyst for low-temperature selective catalytic reduction with ammonia (NH3-SCR) has been widely studied. However, most researchers have focused on double transition metal Mn-based spinel and the reports about doping with non-transition metal are not common. Herein, Mg2+ and Zn2+ with similar ionic radii were used to prepare high purity MgMn2O4 and ZnMn2O4 (named MMO and ZMO) to study their structure and activity relationships in NH3-SCR. It was found that the denitration performance of the two showed significant differences at low temperature despite have a very similar crystal structure. A series of characterization methods and first-principles calculations demonstrates that the relatively weak bonding strength and basic adsorption sites of MMO catalyst are the key factors contributing to its superior reactivity at low temperatures. This work provides novel insights and ideas in comprehending the catalytic function of non-transition metal-doped Mn-based spinels in NH3-SCR reactions.

Cation exchange doping by transition and non-transition metals: embracing luminescence for band gap tunability in a ZnS lattice

When designing sensors for optoelectronic devices, fluorescent materials are always the choice of material chemists.

Синтез комплексов хрома с углеводородными и гетероциклическими лигандами и применение их в процессах полимеризации и газофазного получения хромкарбидных пленок в работах

In the works of Professor A.N. Artemov, the synthesis of chromium-containing isoxazolines by the reaction of 1,3-lipolar cycloaddition was studied and an increase in cis/trans selectivity was demonstrated when introducing a tricarbonylchromium group into molecules of dipoles and dipolarophiles. Arentricarbonylchromium derivatives of six–membered heterocycles with N–C–O bonds, like their five-membered analogues, can be obtained by reaction between heterocycles free of the tricarbonylchromium group, as well as a result of condensation of chromium-containing amino alcohols with carbonyl compounds. The synthesis of bi- and polymetallic compounds in the reactions of organometallic halides with various non-transition metals has been studied. Such reactions make it possible in a one-step process to obtain compounds containing covalent bonds of metals of 12–15 groups (Mg, Zn, Cd, In, Tl, Sn, Pb, Bi) with non-transitive elements (Fe, Mo, W). Styrene chromium tricarbonyl, para-methylstyrene chromium tricarbonyl, α-methylstyrene chromium tricarbonyl, stilbene chromium tricarbonyl, allylbenzene chromium tricarbonyl, and diphenylbutadiene chromium tricarbonyl were studied as polymerization regulators by the mechanism of reversible inhibition for vinyl monomers. α-methylstyrene chromium tricarbonyl, diphenylbutadiene chromium tricarbonyl, allylbenzene chromium tricarbonyl. When they are introduced into the polymerizing mass of methyl methacrylate, butyl acrylate, styrene in quantities commensurate with the concentration of the initiator, they control the termination of the polymer chain at temperatures not exceeding 100 °C. At the same time, the process proceeds at a sufficiently high rate, and the control of chain growth follows the mechanism of reversible inhibition. The gas-phase decomposition of bis-ethylbenzenechromium can proceed with the formation of hard and wear-resistant chromium carbide coatings, as well as with the production of chromium films characterized by a low temperature resistance coefficient.

Hexagonal Mg2B2 and Ca2B2 monolayers as promising anode materials for Li-ion and Na-ion batteries.

Exploring new high-performance anode materials is of great significance for next generation renewable energy technologies. Two-dimensional (2D) transition metal borides, named as MBenes, are receiving increasing attention in energy storage fields due to their structure-and-composition diversities and high electrical conductivities. Expanding the family of hexagonal MBenes to non-transition metal borides, we report two hexagonal IIA metal M2B2-typed MBenes and demonstrate the feasibility of exfoliation and application as anode materials for Li-ion batteries (LIBs) and Na-ion batteries (SIBs) using ab initio calculations. The predicted 2D Mg2B2 and Ca2B2 monolayers exhibit robust thermal and mechanical stabilities, inherent metallic properties, electrical conductivities, and excellent electrode performance. The outstanding theoretical specific capacities of Mg2B2 and Ca2B2 for Li/Na ions reach up to 764/527 and 859/527 mA h g-1, respectively. Furthermore, the average open-circuit voltages (OCVs) of Mg2B2 and Ca2B2 range from 0.275 to 0.395 V, indicating their suitability for anode materials. Additionally, the low diffusion energy barriers of Mg2B2 and Ca2B2 for Li/Na ions at delithiated/desodiated states (27/14 and 16/12 meV) and lithiated/sodiated states (187/58 and 52/34 meV) illustrate their excellent charge-discharge capabilities. These intriguing findings demonstrate the superior performance of the predicted IIA metal boride monolayers as promising anode materials for LIBs and SIBs and break through the limitations of transition metal MBenes as anode materials in terms of overall performance. Our study opens the door to the application of the main group metal MBenes in ion energy storage.

Understanding the electrochemical properties of Mg-doped Li2MnO3: first-principles calculations.

Non-transition metal doping, especially for Mg, has been gradually employed to optimize the electrochemical performance of Li-rich cathode material Li2MnO3. However, the effects of Mg doping on the electrochemical behavior of Li2MnO3 have not been studied extensively. In this work, we investigate the effect of Mg doping at both the 2b (in the Li/Mn mixed layer) and 4h (in the Li layer) Li sites on the electrochemical properties of Li2MnO3 through first-principles calculations and ab initio molecular dynamics simulations. The local lattice structure, electronic density of states, Bader charge, delithiation voltage, lattice oxygen stability and Li diffusion kinetics are examined. Electronic structure analysis shows that Mg can activate the electrochemical activity of surrounding Mn by charge transfer, making Mn participate in charge compensation at the initial delithiation stage. Mg doping can also cause an increase in the average oxygen vacancy formation energy and hence depress the oxygen release during the delithiation process. Molecular dynamics simulations show that the diffusion kinetics of Li ions in Mg2b-Li2MnO3 is enhanced with respect to the undoped one, whereas Mg doped at the 4h site cannot improve the diffusion kinetics of Li ions. Further studies found that Mg doped at the 2b site results in a decrease in the energy barrier for the intra-layer diffusion and an increase in the energy barrier for the inter-layer diffusion of the nearby Li vacancies.

First principles and molecular dynamics simulations of effect of dopants on properties of high strength steel for hydrogen storage vessels

High-pressure gaseous hydrogen storage is an important way of hydrogen energy storage and transport at present, while high-strength steel material is one of the main materials used for hydrogen storage vessels. However, their internal doping elements and inherent defects often lead their mechanical properties to decrease, thus reducing the pressure-bearing capability and storage life of the vessel. At present, the mechanism of doping elements influencing the mechanical properties of high-strength steels is still unclear. In this work, a first-principles approach is used to study the influence of elemental doping (Cr, Mn, Mo, As, Sb, Bi, Sn, Pb) on the mechanical properties of Fe single crystals and Fe-C systems. The results show that among the above elements, Mn doping can increase the elastic modulus, bulk modulus, and shear modulus compared with those of pure Fe, while the doping by remaining elements will reduce the three moduli above, with the non-transition metal elements having a greater effect on the three moduli than the transition metal elements. Electronic structure analysis shows that the transition metal elements have better compatibility with the Fe lattice. Molecular dynamics results further show that the injection of H atoms significantly disrupts the lattice ordering of the Fe polycrystalline doped by C, Cr, and Mn elements, while the doping of Cr elements can significantly enhance the dislocation density of the system. The effects of doping elements on the mechanical properties of single-crystal and polycrystalline Fe, which are studied in this work, are of great significance in guiding the mechanistic study of the effects of doping and defects on the strength of Fe-based materials.

Ionic homometallic and heterometallic Titanium/Transition and Non-Transition metals complexes stabilized with crown ether in the polymerization of ethylene

New ionic complexes with various metals (Mg2+, titanium in various oxidation states, and iron triad metals) in the 15-crown-5 cavity as a cation and a titanium-containing anion have been synthesized. The structure of some synthesized complexes was determined by X-ray diffraction analysis. These compounds, in the presence of the Al/Mg activator {Et2AlCl + Bu2Mg}, catalyze the polymerization of ethylene with the formation of ultrahigh molecular weight polyethylene (UHMWPE) with molecular weights up to 2.56·106 Da. Only complexes with a titanium-containing anion showed catalytic activity; its maximum value −4651 kg of PE/mol·h·atm was exhibited by the complex [15C5 ⊃ FeIIICl·2CH3CN]2+[Ti2Cl10]2-. The resulting ultra-high molecular weight polyethylene (Mv to 2.56•106 Da) can be processed by a solventless method into high-strength (up to 2.45 GPa) and high-modulus (up to 144 GPa) oriented tapes. Most polyethylene samples have a linear structure, with the exception of polymers obtained on Ni/Ti complexes, which have 2–3 branches per 1000 carbon atoms.

High-rate performance of Li–S/Na–S batteries achieved by C/Sn composites with high active Sn atoms

Li–S batteries and Na–S batteries attract wide attention because of high specific capacity, rich resources and environmental friendliness, but poor rate performance limits their development. Single atoms perform as active sites and promote redox reaction process of sulfur, which are benefit for improving rate performance of Li–S batteries and Na–S batteries. However, many researches only focus on transition metal atoms instead of non-transition metal atoms. Sn atoms are introduced on carbon surface to obtain C/Sn composites and electrochemical performance of C/Sn/S composites in Li–S batteries and Na–S batteries is studied in this paper. As for comparison, electrochemical performance of C/S without Sn atom modified is also studied. Results show that C/Sn/S composite electrodes possess higher rate performance than C/S composite electrodes in both Li–S batteries (359 mAh·g−1 at 20C) and Na–S batteries (151 mAh·g−1 at 20C). High-rate performance of C/Sn/S composite electrodes in Li–S batteries is attributed to catalytic abilities of active Sn atoms and high conductivity of carbon. Researches provide references for structure control and application of carbon composites with non-transition metal atom modified.

Aluminum-incorporation activates vanadium carbide with electron-rich carbon sites for efficient pH-universal hydrogen evolution reaction

Vanadium carbide (VC) is the greatest potential hydrogen evolution reaction (HER) catalyst because of its platinum-like property and abundant earth reserves. However, it exhibits insufficient catalytic performance due to the unfavorable interaction of reaction intermediates with catalysts. In this work, using NH4VO3 as the main raw material, the flow ratio of CH4 to Ar was accurately controlled, and a non-transition metal Al-doped into VC (100) nano-flowers with carbon hybrids on nickel foams (Al-VC@C/NF) was prepared for the first time as a high-efficiency HER catalyst by chemical vapor carbonization. The overpotential of Al-VC@C/NF catalysts in 0.5 M H2SO4 and 1 M KOH at a current density of 10 mA cm−2 are only 58 mV and 97 mV, respectively, which are the best HER performance among non-noble metal vanadium carbide based catalysts. Simultaneously, Al-VC@C/NF exhibits small Tafel slope (45 mV dec-1 and 73 mV dec-1) and excellent stability in acidic and alkaline media. Theoretical calculations demonstrate that doped Al atoms can induce electron redistribution on the vanadium carbide surface to form electron-rich carbon sites, which significantly reduces the energy barrier during the HER process. This work provides a new tactic to modulate vanadium-based carbons as efficient HER catalysts through non-transition metal doping.

Tuning electrolyte solvation structure with Co-solvent engineering to enable highly reversible and stable Zn-graphite dual-ion batteries

Graphite-based dual-ion batteries (GDIBs) have attracted ever-growing attentions due to its non-transition metal configuration and high working potential. However, the safety concerns associated with the use of organic electrolyte make it unpractical for large-scale energy storage system. Moreover, the anodic limit of aqueous electrolytes, even the improved anodic limit derived from highly concentrated aqueous electrolytes, is not sufficient to support high graphite intercalation voltage. Herein, a co-solvent-induced hybrid aqueous/non-aqueous electrolyte has been proposed to break this bottleneck through regulating the solvation structures around anions. A series of hybrid electrolytes are prepared by controlling dimethyl carbonate (DMC) ratio and the relation between the solvation structures and anion intercalation chemistry is explored, indicating that the mutual interaction between solvent molecules and anions determines the anion intercalation behaviour. The optimized DMC-dominated solvation structures with a mass ratio of DMC to water of 1.2:1 significantly expand the anodic limit of electrolyte up to 2.54 V (vs. Zn/Zn2+). The as-designed Zn-Graphite batteries exhibit an excellent cyclic stability and reversibility (99 % capacity retention after 200 cycles at 200 mA g−1, nearly 98 % Coulombic efficiency). This work provides guidance to achieve the balance between security capability and electrochemical performances through controllable solvation structures.

Relationship between the contact angle of pure Cu and its alloys owing to liquid Na and electronic states at the interface

Contact angle is an indicator of the wettability between liquid Na and pure metals. This has been evaluated using the atomic interactions obtained from the calculations of the electronic structure of the interface. This study aims to investigate the applicability of the atomic interactions of the interface to the alloys. An interface model between Cu and Na with an alloying element was constructed, and the electronic states of the interface were calculated by the molecular orbital calculation. The bond order, which indicates the strength of the covalent bonding at the interface, and ionicity, which indicates the amount of charge transfer, were obtained as theoretical parameters from the calculation. The contact angles between the Cu or Cu alloys and liquid Na were measured using a droplet of liquid Na at 423 K in a high-purity Ar atmosphere. The contact angles of the Cu alloys were evaluated using these theoretical parameters. As a result, a correlation was obtained between the ratio of the bond order between the substrate metal atoms to the bond order between the Na atom and the substrate metal atoms and the contact angle, which is consistent with previous studies. Furthermore, for the first time, the correlation between the ionicity or difference in the ionicity and contact angle was clarified. The difference in ionicity is the difference between the ionicity of Na atoms and that of the alloying element, indicating the strength of the ionic bonding. It was suggested that Cu and Cu alloys should consider covalent and ionic bonding when evaluating wettability, because Cu has an intermediate electronic state between transition and nontransition metals. Further, it became clear that the evaluation of the contact angle using the atomic interactions at the interface are applicable not only to pure metals but also to alloys.

Bismuth Oxychloride as an Efficient Heterogeneous Catalyst for Aldol Condensation Reaction between Aldehydes and Ketones

The aldol reaction is a cornerstone of modern synthetic organic chemistry in which the β-hydroxyketone was formed by the reaction of an enol or an enolate and a carbonyl compound. Benzalacetone is one of the fundamental building blocks of benzalacetone synthase structure that play an important role for construction of a variety of medicinally crucial phenylbutanoids, such as anti-inflammatory glucoside lindleyin in rhubarb and gingerol. The non-transition metal material attracted much attention from research groups on the world, such a potential catalyst as BiOCl for organic reaction due to its remarkably chemical and physical properties as relative stability, resistance of air and moisture, low toxicity. The BiOCl material was synthesized by the solvothermal method. The structure features of material were defined by modern analytic methods such as X-ray diffraction (XRD), Fourier Transform infrared spectroscopy (FT-IR), Scaning Electron Microscope (SEM), and Nitrogen Adsorption-Desorption Isotherms. The BiOCl material was successfully utilized as a catalyst for the aldol condensation reaction of benzaldehyde and acetone. The reaction was performed in the mild condition with the presence of 10 mol% catalyst and 2 equivalent of Cs2CO3 as base without by-product in very short reaction times and good yields. The benzalacetone product obtained around 85% yield at 120 °C for 24 h. The BiOCl material after reaction was recovered and reused many times without significant reducing of catalytic activity. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).