Facile synthesis of low-cost Fe3C-nitrogen and phosphorus co-doped porous carbon nanofibers: The efficient hydrogen evolution reaction catalysts

Hollow Co nanoparticle/carbon nanotube composite foam for efficient electrocatalytic hydrogen evolution

“…The electrode kinetics were investigated using EIS to obtain further the origin of the better HER catalytic participation of the Co/NCNT-25 electrode. 51,52 Based on the Nyquist plots and the corresponding equivalent circuit value (Fig. 6d and Table S3, ESI†), Co/NCNT-25 had the lowest semicircular diameter (0.74 Ω) ( R ct stands for charge transfer resistance) showing the highest charge transfer capacity, which was much lower than NCNTs (247 Ω) and Co/CNTs (1.05 Ω).…”

“…The electrode kinetics were investigated using EIS to obtain further the origin of the better HER catalytic participation of the Co/NCNT-25 electrode. 51,52 Based on the Nyquist plots and the corresponding equivalent circuit value (Fig. 6d and Table S3 ECSA on the other hand typically suggests more possible sites for catalysis.…”

Ru–Fe4C nanoparticles loaded on N-doped carbon nanofibers as self-supporting high-efficiency hydrogen evolution electrocatalysts

“…Iron is a metal with abundant content on Earth, and it can be obtained at a lower price than Co and Ni. 20 Employing iron as a carrier to disperse noble metals not only reduces the content of noble metals, but also improves the exposure of the active site of noble metals, thus improving the HER performance.…”

“…14–18 Therefore, it is urgent to develop efficient and low-cost electrocatalysts based on abundant elements on Earth. 19,20…”

“…[14][15][16][17][18] Therefore, it is urgent to develop efficient and low-cost electrocatalysts based on abundant elements on Earth. 19,20 Ru and Pt have similar hydrogen bond strength, 21 while Ru has a lower price, 22 only 1/4-1/20 of Pt. 23 Ru has been favored by many researchers recently.…”