Electrochemical tuning of a Cu₃P/Ni₂P hybrid for a promoted hydrogen evolution reaction

Abstract

In this work, self-supported Cu3P/Ni2P hybrid on nickel foam modified by 4000 cyclic voltammetry scans exhibited a great HER performance with an overpotential of only 67 mV required to reach the current density of 10 mA cm−2.

Copper Phosphide Nanowires as High-Performance Catalysts for Urea-Assisted Hydrogen Evolution in Alkaline Medium

“…In the high-resolution Cu 2p spectrum, two distinct peaks at 933.9 eV and 953.5 eV were observed, ascribing to its 2p3/2 and 2p1/2 region, thereby revealing the presence of the Cu-P bond (Figure 2c) [28,29]. Furthermore, a broad peak centered around 129.5 eV in the P 2p3/2 region, providing compelling evidence for the formation of the Cu3P phase (Figure 2d) [30]. However, besides the Cu-P bonds, a new discovery was made regarding the presence of the Cu-O bond in the high-binding-energy region of the Cu 2p spectrum, with two peaks at 934.9 eV (2p1/2) and 955.5 eV (2p3/2), respectively.…”

Constructing abundant interfaces by decorating MoP quantum dots on CoP nanowires to induce electronic structure modulation for enhanced hydrogen evolution reaction

“…Recently, there has been a notable surge in endeavors aimed at creating cost-effective and easily accessible non-precious metal catalysts that showcase exceptional stability and activity for the HER. 8 For instance, CoP, 9–11 FeP, 12,13 Fe–CoP, 14 Ni 2 P, 15,16 Cu 3 P, 17 and MoP 18,19 have shown promise as potential HER catalysts due to their negative valence phosphorus atoms that can generate more positive protons for the reaction. 20 In addition to transition metal phosphides, a variety of non-noble metal-based catalysts have been developed, such as carbides (FeC x ), 21 nitrides (Ni 3 FeN), 22 basic salts, 23 selenides (W–NiS 0.5 Se 0.5 ), 24 and single-atoms (Ni–P 1 N 3 ).…”

Phosphating core–shell graphdiyne/CuI/Cu3P S-scheme heterojunction confirmed with in situ XPS characterization for efficient photocatalytic hydrogen production

“…16 Furthermore, Yin's team successfully prepared a Cu 3 P/ Ni 2 P hybrid, which improved the hydrogen production performance. 17 The serious recombination problem of photogenerated electrons and holes and the weak redox ability limit photocatalytic activity. The S-scheme heterojunction was first proposed by Yu's team.…”

“…16 Furthermore, Yin's team successfully prepared a Cu 3 P/Ni 2 P hybrid, which improved the hydrogen production performance. 17…”