氮掺杂镍铜合金在全 pH 范围内的析氢性能

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引用格式：，等. 氮掺杂镍铜合金在全 pH 范围内的析氢性能[J]. 当代化工，2026, 55（4）：846-851.

SUN Qiangqiang, WEI Yuhang, JIANG Meina, et al. Hydrogen Evolution Performance of Nitrogen-Doped Nickel-Copper Alloy in Full pH Range [J]. Contemporary Chemical Industry, 2026, 55(4): 846-851.

，李春

中图分类号：TQ151.1; O611.4

文献标志码：A

文章编号：1671-0460（2026）04-0846-06

Hydrogen Evolution Performance of Nitrogen-Doped Nickel-Copper Alloy in Full pH Range

SUN Qiangqiang, WEI Yuhang, JIANG Meina, YANG Jingqi, ZHANG Jing, LI Chun

(Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo Research Centre of Grapheme Technology and Application, School of Chemical Engineering and Modern Materials, Shangluo University, Shangluo Shaanxi , China)

Abstract: Using three-dimensional nickel foam (NF) as the substrate, nickel-copper alloy (NiCu/NF) was prepared via pulsed electrodeposition, and then nitrogen-doped nickel-copper alloy (NiCuN/NF) was obtained by medium-temperature solid-phase nitridation. Systematic optimization of the synthesis process revealed that NiCuN/NF obtained using NH3 as the nitrogen source and maintained at 420 °C for 150 min exhibited a uniformly distributed, interwoven interconnected nano-web structure with average size of about 200 nm. This material demonstrated outstanding hydrogen evolution performance across the full pH range: in 1.0 mol·L -1 KOH, the overpotential was only 50 mV at current density of 10 mA·cm -2 ; in 1 mol·L -1 PBS, the overpotential was 140 mV at current density of 10 mA·cm -2 ; in 0.5 mol·L -1H2SO4 , the overpotential reached 94 mV at current density of 10 mA·cm -2 . The performance enhancement was primarily attributed to an approximately six-fold increase in active surface area and optimized reaction kinetics. Furthermore, the NiCuN/NF electrode exhibited excellent catalytic stability and mechanical strength, showing promising potential for application in electrocatalytic hydrogen production.

Keywords: Nitrogen doping; Nickel-copper alloy; Hydrogen evolution reaction; Medium-temperature solid-phase synthesis; Full pH range

能源需求的持续增长与化石燃料消耗所带来的环境压力，使得发展清洁、可持续的氢能体系成为全球共识。（剩余14630字）