Co3C-stabilized-CoFe heterostructure wrapped by bamboo-like N-doped carbon nanotubes for highly-efficient oxygen electrocatalysis

Structural and compositional analysis of MOF-derived carbon nanomaterials for the oxygen reduction reaction

“…114 2.2.4 Metal compound nanoparticles. Metal compounds have significantly advanced the field of the ORR, including metal oxides (FeO, Fe 2 O 3 , Co 2 O 3 ), [115][116][117] metal carbides (Fe 3 C, Fe 7 C 3 , Co 3 C), 33,118,119 metal sulfides (Co 2 S, Co 9 S 8 , MoS 2 ), [120][121][122] and others. The composition of metal compounds in MDCNM is primarily influenced by various factors such as the nonmetallic element in MOFs, post-treatment, and additional reactants.…”

“…Metal carbides, when utilized as catalysts for the ORR, can enhance the corrosion resistance of the catalyst. 116,117 It can also improve the ORR activity of the catalyst by enhancing the synergistic interaction with the adjacent M-N x sites in the catalyst. 33 Wang et al prepared carbon materials embedded with Fe 3 C nanoparticles through the direct pyrolysis of a dual-metal organic framework.…”

Controllable Phase Separation Engineering of Iron–Cobalt Alloy Heterojunction for Efficient Water Oxidation

“…In recent years, enormous efforts have been devoted to develop the earth-abundant OER electrocatalysts, while the rapid progress has been made based on the transition metal compounds, including alloys, , oxides, , hydroxides, − phosphides, , nitrides, , and sulfides. − Among them, transition metal alloys have attracted wide attention as a class of promising candidates due to their ever-known high intrinsic activity and stability, excellent electrical conductivity, and tunable d -band electron configurations. − Furthermore, some of the recent studies demonstrated that the electrocatalytic activity of alloys can be further improved in the case of the construction of heterojunctions by interface engineering. − For instance, Yu et al constructed the ruthenium–cobalt bimetallic alloys on MXene with strong interaction between alloys and conductive MXene, thus leading to the enhanced electrocatalytic performance . Although some encouraging progress has been made in the construction of transition metal alloy heterojunctions, the electronic structure and interface layer effects of heterojunctions are still unclear.…”