Optimizing bulk high-entropy alloys: In-situ carbide microdomains empower efficient electrocatalysis for overall water splitting.

Controllable electrochemical construction of highly dual porous Co-Mn-S@Ni-Co heterojunction for boosting energy-saving hydrogen production assisted by urea oxidation reaction.

High-concentration CoNi-C interface for efficient alkaline hydrogen evolution.

Here, for the first time, a study of composite graphitic carbon nitride photocatalysts based on laboratory synthesized TiO2 (g-C3N4/TiO2) for the hydrogen evolution reaction (HER) from aqueous solutions of organic substrates under visible light irradiation is presented. The methods to synthesize TiO2 and g-C3N4/TiO2 include precipitation and hydrothermal routes, followed by calcination. A comparison of the synthetic approaches was carried out using a variety of electron donor systems (glucose, ethanol and triethanolamine). The highest HER activity is achieved with a photocatalyst containing 10 wt% g-C3N4 on TiO2, obtained by precipitation. Pt- and Cu-modified photocatalysts exhibit hydrogen evolution rates of 161 and 34 µmol h-1 g-1, respectively, in aqueous glucose solution. This enhanced performance originates from the successful formation of effective heterojunctions between g-C3N4 and the different phases of TiO2, as well as the material sensitivity to both visible and UV light.

Synergistic activation of bimetallic sulfides via hierarchical architecture: a superior bifunctional electrocatalyst for efficient hydrogen evolution and iodine reduction.

Regulating the Helmholtz layer through nickel-doped molybdenum dioxide surface fixation of hydrated sodium ions.

Optimized adsorption energy of intermediates on bimetallic NiCoSe nanoflowers for synergistic urea electrooxidation and hydrogen evolution.

The breakthrough of carbon-supported ruthenium catalysts in hydrogen evolution reaction: the "dual engines" of design and synthesis

Environmental pollutants and biomolecules detection using ZIF-67 and its composites as electrode modifier: A review.

A unique scandium oxide-doped cobalt oxide nanosheet array for coupling hydrogen evolution with catalytic conversion of polyethylene terephthalate into formate.

Developing efficient and durable non-platinum group metal (non-PGM) catalysts is critical for advancing the oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) in acidic conditions. Recently, we presented the enhanced performance of carbon supported cobalt complex catalysts with a 14-membered ring hexaazamacrocyclic ligand (Co-14MR/C) catalysts than carbon supported Co phthalocyanine (CoPc/C) catalysts having 16-membered ring (16MR) for the acidic ORR and HER in terms of catalytic activity and durability to propose Co-14MR structures as promising design basis of non-PGM catalyst. In the present study, we extend the comparative analysis to include Co tetraphenylporphyrin (CoTPP), another widely used Co-16MR complex. Although the performance of CoTPP/C catalysts surpasses those of CoPc/C catalysts, Co-14MR/C catalysts show higher activity and durability than CoTPP/C catalysts for both reactions. Therefore, it is indicated that Co-14MR/C catalysts are more effective for the ORR and HER compared to Co-16MR/C catalysts. In addition, based on structural analysis using extended X-ray absorption fine structure (EXAFS) spectroscopy, it is confirmed that the shorter Co-N bond length Co-14MR/C catalysts than Co-16MR/C catalysts is one of the key structural factors to long-term durability. These findings highlight the unique advantages of the 14MR ligand in enhancing both the activity and durability of CoN 4 electrocatalysts. • Carbon supported Co complexes for oxygen reduction and hydrogen evolution reactions. • Macrocyclic ligand size greatly affects the activity and durability of Co catalysts. • Short Co-N bond length is a key factor to the catalyst durability.

Biohydrogen evolution via ferric oxide-intercalated graphene oxide modified nickel foam biocathode in single-chamber microbial electrolysis cell.

Heteroatom substitution boosts Electrocatalytic Ammonia synthesis in porous coordination network.

Coordination zinc ion deposition kinetics through interfacial hydrogen bonding network for high-performance aqueous zinc ion batteries.

Enhanced active hydrogen supply promotes interfacial tandem electrocatalytic nitrate reduction to ammonia.

Enhanced electrochemical water splitting for hydrogen and oxygen evolution reaction using ZnTiO3 perovskite deposited Fe screw pitch electrode

Hydrangea-like high-entropy material (FeNiCoMnMo)S2 as highly efficient bifunctional electrocatalyst for overall water splitting.

Optimizing Ni/Co ratios in NiCo-LDH for enhanced hydrogen and oxygen evolution reactions in overall water splitting

Synergistic interaction of ternary Pd−Cu−Ni confined in nanoparticles as pH-universal catalysts for enhanced hydrogen evolution reaction

Thiamphenicol degradation by electroactive biofilm with CoFe-LDH@Ni-MOF and ZIF-67@MoS2 under hydrogen evolution reaction potential