Efficient Co-doped pyrrhotite Fe0.95S1.05 nanoplates for electrochemical water splitting

Co9S8 Nanoparticles for Hydrogen Evolution

“…Recently, many transition metal sulfides have also been explored as efficient and approvingly active HER catalysts in acidic and basic conditions, considering this as one of the suitable operating conditions of fuel cells and electrolyzers. , To accomplish this, considerable exploration energies have been dedicated to evolving HER catalysts, which are nonprecious metals, stable in a wide pH range and displaying high activities. Among this growing family of HER catalysts, one of the most active members are nanostructured sulfides and other heterostructures of cobalt, − nickel, , iron, molybdenum, and tungsten …”

Novel WS2/Fe0.95S1.05 Hierarchical Nanosphere as a Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction

“…The satellite peak that are observed at 727.5 eV and 715.2 eV are attributed to Fe 2+ sat. and Fe 3+ sat [37a] . In the high‐resolution S 2p region (Figure 2d), two peaks are observed at the binding energy of 162.3 eV and 163.8 eV, which are ascribed to S 2p 3/2 and S 2p 1/2 , respectively, indicating the presence of S 2− [39] .…”

A novel monoclinic metal oxide catalyst for oxygen evolution reactions in alkaline media

“…[16][17][18] It has been demonstrated that Co doping is an efficient way to improve the catalytic performance because of its ability to form oxygen defects and to tune the band gap. [18][19][20][21] For example, Zheng et al confirmed that the activity of the Co-doped iron pyrrhotite electrocatalyst can be greatly improved due to the reduction of the energy barrier for transition state. 20 Shan et al discovered that by comparing doping Co, Ni, Fe, and Co doping could increase the valence states of the active site to the optimal valence to modify the electronic structure and to boost the OER performance.…”

“…[18][19][20][21] For example, Zheng et al confirmed that the activity of the Co-doped iron pyrrhotite electrocatalyst can be greatly improved due to the reduction of the energy barrier for transition state. 20 Shan et al discovered that by comparing doping Co, Ni, Fe, and Co doping could increase the valence states of the active site to the optimal valence to modify the electronic structure and to boost the OER performance. 22 However, the research on the usage of Co as a regulator for the octahedral Fe site to enhance the OER activity has been seldom reported before.…”