A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation

• DOI: 10.1016/j.gee.2022.04.009
• Publication Date: 2022-05-04T16:25:54Z
• Authors: Jingwen Ma; Xiang Li; Guangyu Lei; Jun Wang; Juan Wang; Jian Liu; Ming Ke; Yang Li; Chunwen Sun
• Keywords: Overpotential; Noble metal

The exploitation of electrocatalysts with high activity and durability for HER is desirable future energy systems, but it still a challenge. NMPs have attracted increasing attentions, the preparation process often needs toxic regents or dangerous reaction conditions. Herein, we develop general green method to fabricate metal-rich anchored on NPG through pyrolyzing DNA cross-linked complexes. obtained Ru2P-NPG exhibits an ultrasmall overpotential 7 mV at 10 mA cm−2 ultralow Tafel slope 33 dec−1 in 1.0 mol L−1 KOH, even better than that commercial Pt/C. In addition, also shows low overpotentials 29 78 0.5 H2SO4 PBS, respectively. superior can be attributed ultrafine dispersion Ru2P nanoparticles more accessible sites, defects formed abundant active two-dimensional plane structure accelerated electron transfer mass transport, as well regulation distribution catalyst. Moreover, synthetic applied prepare other noble metal phosphides (Pd3P-NPG Rh2P-NPG), which HER. This work provides effective strategy designing NMP-based electrocatalysts.