Low-temperature Catalytic Activity Research Articles

Selectively located Pt clusters on Au/CeO2 for highly robust water-gas shift reaction via atomic layer deposition

Au catalysts have shown outstanding low temperature catalytic activity toward water-gas shift (WGS) reaction, but they are struggling with the durability concerns. Herein, Pt clusters are selectively located on Au/CeO2 through atomic layer deposition method to activate the interfacial active sites poisoned by intermediate species. The selective method effectively avoids the coverage of Au surface sites by Pt atoms and maintains the low temperature catalytic activity of Au/CeO2 catalyst. Durability test indicates that the Pt-activated Au/CeO2 catalyst shows superior durability in WGS atmosphere (200 ºC), which only attenuates 7.9% (from 78.0% to 70.1%) after 150 h. The analysis of surface intermediates and density functional theory calculations reveal that the introduction of Pt ensures the regenerative capacity of Au/CeO2 active sites by facilitating the decomposition of intermediate species and the desorption of CO2.

Surface oxygen vacancy vs oxygen storage capacity in cubic ceria based nanocatalysts for low temperature catalytic combustion of fuels

A series of praseodymium (Pr) doped cubic ceria nanoparticles (CeO2 NPs) with different ratio of cerium (Ce) and ‘Pr’ was synthesized by hydrothermal method. Manganese (‘Mn’) doped cubic CeO2 NPs with 10:90 ratio of Mn:Ce and undoped cubic CeO2 NPs have also been synthesized. The crystalline structure of the synthesized nanomaterials has been studied by powder X-Ray diffraction (XRD) and Rietveld analysis. In the Raman spectrum, the intensity of F2g signal at 450–460 cm−1 decreased while the intensity of extrinsic vacancy at 570–580 cm−1 increased by doping with ‘Pr’ or ‘Mn’ in cubic CeO2 nanocrystals. X-ray photoelectron spectroscopy (XPS) results showed that surface oxygen vacancy of cubic CeO2 NPs increased by doping with 25 % of ‘Pr’. The ‘Pr’ doped CeO2 NPs (Pr:Ce = 25:75) exhibited higher surface adsorption dynamic oxygen storage capacity (OSCDyn), while the ‘Mn’ doped cubic CeO2 NPs (Mn:Ce = 10:90) showed increased bulk lattice OSCDyn. The ‘Pr’ doped cubic CeO2 NPs (Pr:Ce = 25:75) exhibited better low temperature catalytic combustion activity, and their nanodispersion in mineral turpentine oil (MTO) added liquefied petroleum gas (LPG) exhibited better fuel efficiency with a flame temperature of 912 °C.

Structural properties and low-temperature NH3-SCR activity of CeO2-MnOx mixed oxides catalyst in the microwave field

The NH3-SCR technology, based on CeO2-MnOx catalysts, is of great significance for NOx removal at low temperatures. Microwave irradiation, as an effective heating approach, can enhance the low-temperature NH3-SCR activity of catalysts. Herein, the structure-activity relationship of CeO2-MnOx oxides catalysts was explored under microwave irradiation. The MnOx catalyst and Ce-Mn(1:1) mixed oxide catalyst exhibited good low-temperature de-NOx performance in the microwave field. With the increase of microwave irradiation intensity and time, the structure and phase composition of MnOx material underwent significant changes. CeO2 played a key role in maintaining the structural stability of the Ce-Mn(1:1) catalyst. In addition, microwave irradiation affected the redox properties and acidity of the catalyst, regulating the catalytic performance. Suitable microwave operation conditions were conducive to increasing the number of acidic sites and enhancing the redox properties, which improved the low-temperature catalytic activity of the catalyst.

Bimetallic Ni-Fe Supported by Gadolinium Doped Ceria (GDC) Catalyst for CO2 Methanation

CO2 conversion into fuels and high value-added chemical feedstocks, such as methane, has gained novel interest as a crucial process for further manufacturing multi-carbon products. Methane, CH4, becomes a promising alternative for environmental and energy supply issues. Nickel-based catalysts were found to be very active and selective for CH4 production. The use of promoter and support material to develop high activity, high selectivity, and durable catalysts for CO2 methanation at low temperature is a challenge. Gadolinium-Doped Ceria (GDC) has been known as material for Solid Oxide Fuel Cell (SOFC) and Solid Oxide Electrolysis Cell (SOEC) due to higher ionic conductivity and lower operating temperatures. However, few researches have been done regarding to CO2 methanation over GDC as catalyst support so far. In this present work, CO2 methanation was investigated over bimetallic Ni-Fe catalyst supported by GDC. The results showed that CH4 production rate by using Ni-Fe/GDC catalyst was higher than that of GDC at all reaction temperatures carried on. Ni-Fe/GDC showed remarkable CH4 production rate as of 17.73 mmol.gcat−1.h−1 at 280 °C. No catalytic activity was produced by GDC catalyst only. The highest CO2 conversion (46.50%) was observed at 280 °C, with almost 100% selectivity to CH4. The turnover frequency (TOF) value of Ni-Fe/GDC (4529.32 h−1) was the highest than that of Ni and common CO2 methanation catalyst, Ni/Al2O3 catalysts at 280 °C, further displaying the outstanding low-temperature catalytic activity. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Extraordinary synergy on 3D hierarchical porous Co-Cu nanocomposite for catalytic elimination of VOCs at low temperature and high space velocity

It is still a challenge to develop hierarchically nanostructured catalysts with simple approaches to enhance the low-temperature catalytic activity. Herein, a set of mesoporous Co-Cu binary metal oxides with different morphologies were successfully prepared via a facile ammonium bicarbonate precipitation method without any templates or surfactants, which were further applied for catalytic removal of carcinogenic toluene. Among the catalysts with different ratios, the CoCu0.2 composite oxide presented the best performance, where the temperature required for 90% conversion of toluene was only 237°C at the high weight hour space velocity (WHSV) of 240,000 mL/(gcat·hr). Meanwhile, compared to the related Co-Cu composite oxides prepared by using different precipitants (NaOH and H2C2O4), the NH4HCO3-derived CoCu0.2 sample exhibited better catalytic efficiency in toluene oxidation, while the T90 were 22 and 28°C lower than those samples prepared by NaOH and H2C2O4 routes, respectively. Based on various characterizations, it could be deduced that the excellent performance was related to the small crystal size (6.7 nm), large specific surface area (77.0 m2/g), hollow hierarchical nanostructure with abundant high valence Co ions and adsorbed oxygen species. In situ DRIFTS further revealed that the possible reaction pathway for the toluene oxidation over CoCu0.2 catalyst followed the route of absorbed toluene → benzyl alcohol → benzaldehyde → benzoic acid → carbonate → CO2 and H2O. In addition, CoCu0.2 sample could keep stable with long-time operation and occur little inactivation under humid condition (5 vol.% water), which revealed that the NH4HCO3-derived CoCu0.2 nanocatalyst possessed great potential in industrial applications for VOCs abatement.

Low temperature catalytic activity of molybdenum promoted two-dimensional boron nitride in propane oxidative dehydrogenation reaction

The catalytic oxidation dehydrogenation of propane to propylene, achieved at low temperatures and with high selectivity on catalysts supported by non-noble metals, exhibits significant potential for a wide range of applications. The performance of boron-based catalysts in ODHP is remarkable; however, there is a dearth of research on their low-temperature range performance. The present study employed a straightforward impregnation method to synthesize a range of Mo/h-BN-γ-Al2O3 catalysts with varying molybdenum loadings, focusing on the comparison between commercial h-BN and h-BN-γ-Al2O3 mixed support. The Mo/h-BN-γ-Al2O3 catalyst demonstrates remarkable low-temperature ODHP activity, with an initial conversion rate of 2.36 % and a propylene selectivity of 96 % at a reaction temperature of 260 ℃, exhibiting good stability over 50 h, the catalytic performance of Mo/h-BN-γ-Al2O3 in the low-temperature range surpasses that of commercial h-BN by a significant margin. Comparative experiments, along with physical and chemical characterization techniques, demonstrate that the incorporation of an appropriate quantity of Mo enhances the catalyst's acidity and redox capability. Furthermore, the synergistic effect between MoOx and BOx promotes low-temperature ODHP. The mechanism underlying the catalyst's low-temperature reaction was investigated using in-situ infrared spectroscopy technology.

Enhancing low-temperature CO removal in complex flue gases: A study on La and Cu doped Co3O4 catalysts under real-world combustion environment

Designing CO oxidation catalysts for complex flue gases conditions is particularly challenging in fire scenarios. Traditional flue gas simulations use a few representative gases but often fail to adequately evaluate catalyst performance in real-world combustion conditions. In this study, we developed doping strategies using La and Cu to enhance the water resistance of Co3O4 catalysts. Catalyst 0.1La-Co3O4-CuO/CeO2 exhibits exceptional low-temperature catalytic activity, achieving 100% conversion at 130 °C. This enhancement is largely due to the introduction of La, which increases the active Co3+/Co2+ ratio and suppresses hydroxyl group formation on the Co3O4 surface. Cu doping also changes the Co3O4 lattice structure, forming Cu+ as active sites and enhancing the activity at low temperatures. For the first time, steady-state tube furnace and fixed bed were employed to evaluate the catalytic performance of CO in actual combustion atmosphere. Catalyst 0.1La-Co3O4-CuO/CeO2 maintains excellent catalytic efficiency (T100 = 120 °C) under well-ventilated conditions. However, its activity significantly decreases in poorly ventilated environments, due to the competitive adsorption of small molecules at active sites, such as acetone, commonly found in smoke. This study provides valuable insights for designing water-resistant, low-temperature, non-noble metal catalysts and offers a methodology for evaluating CO catalytic activity in real-world environments.

Experimental and mechanistic studies on the thermo-electric synergistic catalytic oxidation of acetone over MnO2/TiO2-Ni foam catalyst

Volatile organic compounds (VOCs) cause serious environmental and human health risks and must be efficiently removed. In this work, a metal-structured catalyst of Ni foam loaded Mn/Ti oxides was used for the oxidation of acetone, a typical VOC compound. The catalyst was in-situ joule heated when applying an electric current and produced the thermo-electric synergistic oxidation (TEO) effect. Compared with conventional thermal oxidation (CTO), the oxidation rate of acetone significantly increased by 124.19 % and the energy consumption of per unit complete oxidation rate was reduced by 66.67 % in TEO reaction with a 12 A electric current at 200 °C. The efficiency gradually improved (from 16.12 % to 36.14 %) and the energy consumption of per unit complete oxidation rate decreased (from 2.85 W/% to 0.95 W/%) with the increase of electric current. Besides, the thermal (including the catalyst thermal effect and reaction gas thermal effect) and electric effects in TEO reaction were analyzed by the statistical analysis method. With the temperature increasing from 200 °C to 400 °C, the proportion of electric effect slightly decreased while that of reaction gas thermal effect increased from 5.2 % to 18.1 %. It proved that the TEO method has the advantage of improving low-temperature catalytic activity. Furthermore, the mechanism of electric effect was investigated, in which it enhances the conversion of lattice oxygen in TiO2 to surface-adsorbed oxygen species and promotes the oxidation of Mn oxides, sequentially improving the oxidation of acetone.

Promotion of Low-Temperature Catalytic Activity of Ru-Based Catalysts for Ammonia Decomposition via Lanthanum and Cesium Codoping

Promotion of Low-Temperature Catalytic Activity of Ru-Based Catalysts for Ammonia Decomposition via Lanthanum and Cesium Codoping

Improvement of Ce[sbnd]Nb doping on low-temperature catalytic activity of a VOx-based catalyst for NH3–SCR reaction

A series of VxCeNbTi catalysts were prepared using a wet impregnation method for selective catalytic reduction (SCR) of NO by NH3. The influence of CeNb addition to VTi was investigated in terms of active sites and acidity. The correlation between surface properties, catalyst structure, and performance with the addition of Ce and/or Nb was demonstrated. The composition of VCeNbTi species, surface acid properties, and redox behavior were studied. Results showed that the addition of 2CeNb to VTi increased NH3 adsorption, and brought about positive changes in Brönsted acid sites and composition of surface species. Nbn+ mainly existed as typical Nb2O5 species, forming abundant acid sites and defects on the catalyst surface, closely related to the distribution of VOx species which varied with ceria content. The presence of 2CeNb induced electron redistribution, promoting oxygen defects and reactive oxygen species formation due to the occupancy of high Vn+ (n = 4, 3). The increased proportion of Vn+ (n = 4, 3) improved catalytic activity by generating active groups on the catalyst surface. The introduction of 2CeNb enhanced SCR performance with increased NO2 generation. V2CeNbTi exhibited improved resistance in the presence of SO2/H2O, crucial for high-performance and durable catalysis.

3D-printing of attapulgite monoliths with superior low-temperature selective catalytic reduction activity: the influence of thermal treatment

This study provides a facile strategy for 3D-printing of attapulgite monoliths with superior low-temperature NH3-SCR performance under thermal treatment.

Investigation into the impact of CeO2 morphology regulation on the oxidation process of dichloromethane.

Four distinct CeO2 catalysts featuring varied morphologies (nanorods, nanocubes, nanoparticles, and nano spindle-shaped) were synthesized through a hydrothermal process and subsequently employed in the oxidation of dichloromethane (DCM). The findings revealed that the nano spindle-shaped CeO2 exhibited exposure of crystal faces (111), demonstrating superior catalytic oxidation performance for DCM with a T90 of 337 °C and notably excellent low-temperature catalytic activity (T50 = 192 °C). The primary reaction products were identified as HCl and CO2. Through obvious characterizations, it showed that the excellent catalytic activity presented by CeO2-s catalyst might be related to the higher oxygen vacancy concentration, surface active oxygen content, and superior redox performance caused by specific exposed crystal planes. Meanwhile, CeO2-s catalyst owned outstanding stability, reusability, and water inactivation regeneration, which had tremendous potential in practical treatment.

Study on the mechanism of acid treatment La0.8Sr0.2Mn0.8Cu0.2O3 to improve the catalytic activity of formaldehyde at low temperature.

To address the issue of surface enrichment of A-site ions in perovskite and the resulting suppression of catalytic activity, the La0.8Sr0.2Mn0.8Cu0.2O3 was modified by treatment with dilute nitric acid (2mol/L) and dilute acetic acid (2mol/L). The results show that the effect of dilute nitric acid treatment on the morphology and catalytic activity of the catalyst is more significant. The specific surface area of the catalyst after dilute nitric acid treatment (268.78 m2/g) is seven times higher than before treatment (37.55 m2/g). The low-temperature catalytic oxidation activity of HCHO of the catalyst after dilute nitric acid treatment is significantly improved, achieving a 50% HCHO oxidation efficiency at 80 °C, while the original sample requires 127 °C to achieve a 50% HCHO conversion. The excellent catalytic activity of the catalyst after dilute nitric acid treatment is related to its large specific surface area, high surface-active site density, and abundant Mn4+ ions. Stability and water resistance experiments show that the catalyst after dilute nitric acid treatment has excellent reaction stability and good water resistance ability. The mechanism of the formaldehyde oxidation reaction is that formaldehyde is first oxidized to a dioxymethylene (DOM) intermediate and DOM dehydrogenation reaction is responsible for the formation of formate species (HCOO-).

Electron Donation from Boron Suboxides via Strong p-d Orbital Hybridization Boosts Molecular O2 Activation on Ru/TiO2 for Low-Temperature Dibromomethane Oxidation.

Low-temperature catalytic oxidation is of significance to the degradation of halogenated volatile organic compounds (HVOCs) to avoid hazardous byproducts with low energy consumption. Efficient molecular oxygen (O2) activation is pivotal to it but usually limited by the insufficient electron cloud density at the metal center. Herein, Ru-B catalysts with enhanced electron density around Ru were designed to achieve efficient O2 activation, realizing dibromomethane (DBM) degradation T90 at 182 °C on RuB1/TiO2 (about 30 °C lower than pristine Ru/TiO2) with a TOFRu value of 0.055 s-1 (over 8 times that of Ru/TiO2). Compared to the limited electron transfer (0.02 e) on pristine Ru/TiO2, the Ru center gained sufficient negative charges (0.31 e) from BOx via strong p-d orbital hybridization. The Ru-B site then acted as the electron donor complexing with the 2π* antibonding orbital of O2 to realize the O2 dissociative activation. The reactive oxygen species formed thereby could initiate a fast conversion and oxidation of formate intermediates, thus eventually boosting the low-temperature catalytic activity. Furthermore, we found that the Ru-B sites for O2 activation have adaptation for pollutant removal and multiple metal availability. Our study shed light on robust O2 activation catalyst design based on electron density adjustment by boron.

Cobalt-modified limonite catalyst for low temperature selective catalytic reduction of NOx in ore sintering flue gas by NH3

Natural limonite possesses characteristics of rich reserves and low sintering efficiency. In this study, the Co/Limonite composites were prepared through a one-step impregnation method by using limonite as a precursor and cobalt oxide as a modifier. The influence of cobalt doping amount and calcination temperature on the denitrification efficiency over the composite were investigated. The results showed that the Co/Limonite composite was the optimum over Co/Fe mass ratio of 0.06 and the calcination temperature of 350 °C, it exhibited an excellent low-temperature catalytic activity, stability and good resistance to H2O(g) and SO2. When NO initial concentration was 500 ppm, gas hourly space velocity (GHSV) was 36,000 h−1 and reaction temperature was 100 ℃, the denitrification efficiency reached 100%. Adding of 10 vol% H2O(g) or 50 ppm SO2, respectively, the denitrification efficiency was about 90% at reaction temperature was 150 ℃, while it could approach to 80% with H2O(g) and SO2 were added simultaneously. The micromorphology and physicochemical properties of the catalysts were analyzed by systematic characterization techniques. The Limonite could obtain more surface acid sites and larger adsorption capacity by cobalt modification. More Lewis acids and weak Brønsted acids could greatly contribute to improve the low temperatures denitrification catalytic activity.

An investigation of the activity and mechanism of the catalytic oxidation of toluene by FeMnOx catalyst

To examine the influence of Fe-Mn interactions on the catalytic removal to toluene, FeOx, MnOx and FeMnOx catalysts were manufactured via co-precipitation approach. FeMnOx catalysts presented the optimal low-temperature catalytic toluene activity which attained 100 % removal of toluene (T100) at 270 ℃. The physical and chemical characterization of the material confirmed an increased ratio of Mn3+/Mn4+ and Oads/Olat bonds caused by to the formation of Fe3+-O-Mn3+ bonds. Concurrently, the low-temperature catalytic activity for toluene increased with the increased density of oxygen vacancies, the changed properties in oxygen vacancies and the enhanced oxidation capacity of surface activated oxygen species. In situ DRIFTS experiments were performed to infer different toluene degradation pathways on three catalysts. The catalytic routes for toluene over FeMnOx catalyst was different at 150 ℃ and 260 ℃. At 150 ℃, as the surface oxygen vacancies were not fully activated, the reaction pathway was toluene → benzyl alcohol → benzaldehyde → phenol. The path of toluene over FeMnOx catalyst at 260 ℃ was toluene → benzyl alcohol → benzoaldehyde → benzoate → maleic anhydride and carbonate → H2O and CO2. As compared with MnOx and FeOx catalysts, FeMnOx catalyst could oxidize benzyl alcohol to benzaldehyde and phenol at 150 ℃. This decreased the energy required to open the ring of benzene and accelerated the catalytic oxidation rate.

Study on the kinetic-guided pyrolysis of oil shale kerogen catalyzed by needle-like NiFe-LDH

An in-depth understanding of the thermo-physicochemical behavior of kerogen catalytic pyrolysis is helpful to realize the efficient utilization of oil shale. In this work, the pyrolysis behavior of Barkol Kerogen and its product distribution were investigated by dry distilled experiment with needle-like NiFe-LDH as Catalyst, which was designed based on the kinetic experiments. As a result, NiFe-LDH has low-temperature and high-efficiency pyrolysis catalytic activity in the oil shale recovery and product selectivity. The initial pyrolysis catalytic temperature of kerogen was advanced to 250 °C, and the optimum pyrolysis temperature was decreased by 42.02 °C. The catalytic pyrolysis temperature was selected as 400 °C because of the maximum temperature weight loss in thermal analysis. NiFe-LDH not only increased the oil yield of kerogen by 5.18% and alkane selectivity by 2.62% but also reduced the content of heteroatomic hydrocarbon by 6.46%. Simultaneously, according to the change of activation energy during thermal analysis and the results of pyrolysis experiment, the catalytic pyrolysis process was speculatively divided into three possible stages. This resolution is helpful to understand the catalytic effect of NiFe-LDH on kerogen. Thus, NiFe-LDH plays a distinct role in the catalytic pyrolysis of kerogen and its kinetic regulation.

Synthesis of high-performance Pd/Ce0.4Zr0.5La0.05Y0.05O1.95 catalysts for low-temperature methane combustion with the ultrasound-assisted field

In this work, ultrasound-assisted sol–gel (UASG) and wet incipient impregnation (WIP) methods were employed to synthesize a series of Ce0.4Zr0.5La0.05Y0.05O1.95 oxygen storage materials (OSM) and Pd/Ce0.4Zr0.5La0.05Y0.05O1.95 catalysts under different frequency ultrasound external field. The effect of the ultrasonic external field on the low-temperature catalytic activity of the catalyst was investigated. The BET and TEM results demonstrated that ultrasound field can increase the catalyst's specific surface area by 25% and decrease the particle size from 10.1 nm to 7.3 nm. The XPS results showed that the concentrations of surface Pd2+, Oads, and Ce3+ species increased from 21%, 44%, and 43% to 42%, 65%, and 46%, respectively, enhancing the formation of Pd2+, Oads and Ce3+ species on the catalyst surface. The performance tests revealed that T90(CH4) of the prepared Pd/Ce0.4Zr0.5La0.05Y0.05O1.95 catalyst by UASG method decreased from 536 ℃ to 331 ℃, improving its low-temperature catalytic activity. Additionally, the catalysts synthesized using by UASG method exhibited the enhanced resistance to water and sulfur poisoning and maintained their catalytic performance for 20 h.

Insights into Nb doping effects on the catalytic activity and SO2 tolerance of Mn–Cu/BCN catalyst for low-temperature NH3-SCR reaction

Biochar-based supported denitration catalysts have shown tremendous potential in reducing NOx, while improving low-temperature NH3-SCR catalytic activity and SO2 tolerance still faces great challenges. In this work, Mn7–Cu3/BCN and Mn7–Cu3-Nbx/BCN catalysts were prepared by one-step wet impregnation. The enhanced effect of Nb doping on the catalytic performance and SO2 tolerance over the Mn7–Cu3/BCN catalyst was evaluated in the temperature range of 75–275 °C. The denitrification activity test showed that the introduction of an appropriate amount of Nb increased the catalytic activity and N2 selectivity of the catalyst. The NO conversion of Mn7–Cu3–Nb0.05/BCN with an optimum doping ratio of 0.05 wt% Nb was higher than 94% at 150–275 °C. The characterization results indicated that the introduction of Nb enhanced the interaction between the active components MnOx and CuOx, accelerated the electron transfer between elements, and thus improved the Mn4+/Mnn+ and Oα/(Oα+Oβ+Oγ) proportions and redox performance. On the other hand, Nb modification increased the number of weakly acidic sites, which was beneficial for the adsorption and activation of the reducing agent NH3 under low-temperature conditions. Meanwhile, Nb could significantly improve the SO2 poisoning resistance of the Mn7–Cu3/BCN–S catalyst when SO2 was added to the reaction system. The NO conversion of Mn7–Cu3–Nb0.05/BCN remained above 75% after a 13.5 h reaction under 100 ppm SO2 and 5 vol% H2O at 225 °C. By combining experimental characterization results with DFT calculation results, we effectively confirmed that Mn7–Cu3–Nb0.05/BCN had good sulfur resistance, mainly because Nb could effectively inhibit the formation of manganese sulfate and promote the decomposition of ammonium bisulfate.

Insights into the underpinning effect of graphene in Cu1Mn10 on enhancing the low-temperature catalytic activity for CO oxidation

CO emission is a critical issue of industrial processes such as steel-smelting, cement manufacturing, and waste incineration. Catalytic oxidation based on Cu–Mn binary catalysts shows great potential for efficient removal of CO, whereas their practical applicability is limited by the inferior low-temperature catalytic activity and the high catalyst cost owing to a substantial quantity of Cu. In this study, doping graphene is designed to adjust the electron transfer capability to improve the low-temperature catalytic activity as well as reduce the amount of Cu, and thereby Cu1Mn10 catalysts doped with slight amounts of graphene (x%G-Cu1Mn10, x is 1∼5) were fabricated. It was found that the introduction of graphene could form effective electron transport channels to enhance the intermetallic interaction and oxygen vacancy generation, thus improving the low-temperature catalytic performance of the Cu1Mn10 catalyst. Among all the catalysts, 4%G-Cu1Mn10 exhibited the highest activity, achieving CO conversion of 92% at 110 °C at a weight hourly space velocity of 120,000 mL/(g∙h). The introduction of graphene also enabled the catalyst with excellent catalytic activity and stability at a relative humidity of 70%. Attractively, 4%G-Cu1Mn10 can be further loaded into the polyester fabric, presenting great application potentials in the effective elimination of CO during the dust removal process since the flue gas temperature in the dust collector is just around the T90% and the catalyst that is inside of fabric fiber rather than on the fabric surface can be rarely influenced by the dust. In general, doping graphene provides a facile method to enhance the low-temperature activities of the Cu–Mn binary catalysts and cut down the use of valuable Cu, showing great application potential.