Page 153 - 《精细化工》2023年第9期

第 9 期 贾飞宏，等: 全 pH 范围下 MoS 2 /Ni 3 S 2 /NF 的高效电催化析氢行为 ·2001·

3 结论

本文采用简单的溶剂热法在 NF 上制备了纳米
线结构 MoS 2 /Ni 3 S 2 /NF 电催化剂。对其在不同 pH 的
电解液中进行电化学性能测试，结果表明，MoS 2 /
Ni 3 S 2 /NF 在碱性、中性和酸性溶液中均表现出高效
2
的电催化 HER 活性，当电流密度为 10 mA/cm 时，
HER 过电位分别为 87、113 和 195 mV，其性能接
近于涂覆工艺制备的贵金属 Pt/C/NF 催化剂。此外，
该电催化剂在强碱、强酸环境下具有较好的结构稳
定性以及耐用性，催化活性物质得到保留，提高了
电催化剂的适用性。本研究为全 pH 范围下复合结
构 MoS 2 /Ni 3 S 2 /NF 催化剂用于高效、稳定的电催化
HER 提供了新策略。

参考文献：
[1] SUI C X, CHEN K, ZHAO L M, et al. MoS 2-modified porous gas
diffusion layer with air-solid-liquid interface for efficient electrocatalytic
water splitting[J]. Nanoscale, 2018, 10(32): 15324-15331.

a—XRD；b—Ni 2p；c—Mo 3d；d—S 2p [2] WANG J, XU F, JIN H Y, et al. Non-noble metal-based carbon
composites in hydrogen evolution reaction: Fundamentals to
图8 HER性能测试前后MoS 2 /Ni 3 S 2 /NF-41的XRD和XPS 谱图
Fig. 8 XRD patterns and XPS spectra of MoS 2 /Ni 3 S 2 / applications[J]. Advanced Materials, 2017, 29(14): 1605838.
NF-41 before and after HER performance test [3] JAIN I P, LAL C, JAIN A. Hydrogen storage in Mg: A most
promising material[J]. International Journal of Hydrogen Energy,
综上，XRD 和 XPS 谱图显示各峰强度均有降 2010, 35(10): 5133-5144.
[4] HU L Y, ZENG X, WEI X Q, et al. Interface engineering for
低现象，这可能是碱性电解液的长时间反应和腐蚀 enhancing electrocatalytic oxygen evolution of NiFe LDH/NiTe
使得 Ni 3 S 2 与 MoS 2 部分溶解所致 [22,31] ，但 XRD 显 heterostructures[J]. Applied Catalysis B: Environmental, 2020, 273:
示各峰角度未偏移和 XPS 显示各峰对应结合能变化 119014.
[5] ZHOU Y Q (周燕强), CHEN M (陈萌), XU L J (徐立军), et al.
微小，表明 MoS 2 /Ni 3 S 2 /NF-41 催化剂具有稳定的相 Preparation of Pt/MoC and its performance in electrolysis hydrogen
结构、化学态和电子结构。 Evolution[J]. Fine Chemicals (精细化工), 2018, 35(11): 1921-1927.
此外，MoS 2 /Ni 3 S 2 /NF-41 还需要保持一定的电 [6] LIAO P Q, SHEN J Q, ZHANG J P. Metal-organic frameworks for
electrocatalysis[J]. Coordination Chemistry Reviews, 2018, 373: 22-48.
催化稳定性，图 9 测试了其在不同电解液中的 HER [7] PENG Z K, WANG H Y, ZHOU L L, et al. Hollow carbon shells
稳定性电流密度（j）-时间（t）曲线。由图可知， enhanced by confined ruthenium as cost-efficient and superior
catalysts for the alkaline hydrogen evolution reaction[J]. Journal of
在 HER 稳定性测试中，j-t 曲线均呈平滑趋势，
Materials Chemistry A, 2019, 7(12): 6676-6685.
MoS 2 /Ni 3 S 2 /NF-41 在碱性、中性和酸性介质中电流 [8] REN X, WU D, GE R X, et al. Self-supported CoMoS 4 nanosheet
密度变化很小。表明该催化剂在全 pH 环境下耐用 array as an efficient catalyst for hydrogen evolution reaction at
neutral pH[J]. Nano Research, 2018, 11(4): 2024-2033.
性较好，有利于工业生产和实际应用。
[9] FEI B, CHEN Z L, LIU J X, et al. Ultrathinning nickel sulfide with
modulated electron density for efficient water splitting[J]. Advanced
Energy Materials, 2020, 10(41): 2001963.
[10] JIANG N, TANG Q, SHENG M L, et al. Nickel sulfides for
electrocatalytic hydrogen evolution under alkaline conditions: A case
study of crystalline NiS, NiS 2, and Ni 3S 2 nanoparticles[J]. Catalysis
Science & Technology, 2016, 6(4): 1077-1084.
[11] ZHU W X, YUE X Y, ZHANG W T, et al. Nickel sulfide microsphere
film on Ni foam as an efficient bifunctional electrocatalyst for overall
water splitting[J]. Chemical Communications, 2016, 52(7): 1486-1489.
[12] ZOU X Y (邹祥宇), JIA F H (贾飞宏), WEI X L (卫学玲), et al.
CoSe 2@NF bifunctional electrocatalyst for efficient overall water
splitting under alkaline condition[J]. Fine Chemicals (精细化工),

2022, 39(11): 2235-2240.
图 9 不同 pH 电解液中 MoS 2 /Ni 3 S 2 /NF-41 的 HER 稳定性 [13] RAO Y, WANG Y, NING H, et al. Hydrotalcite-like Ni(OH) 2
j-t 曲线 nanosheets in situ grown on nickel foam for overall water splitting[J].
Fig. 9 HER stability j-t curves of MoS 2 /Ni 3 S 2 /NF-41 in ACS Applied Materials & Interfaces, 2016, 8(49): 33601-33607.
different pH electrolytes [14] DONG J, ZHANG F Q, YANG Y, et al. (003)-Facet-exposed Ni 3S 2