| 氮掺杂碳纤维负载镍钴硒化物的制备及其电催化析氢性能 | |
| Preparation of Nitrogen-Doped Carbon Fiber Supported Nickel-Cobalt Selenides for Electrocatalytic Hydrogen Evolution Performance | |
| 摘要: 以静电纺丝制备的纤维为前驱体，通过煅烧、硒化处理等工艺合成了负载双金属硒化物纳米粒子的氮掺杂碳纤维（NCF）材料（（Ni，Co） Se2/NCF），并对其进行了一系列相关的表征，研究了其在酸性和碱性条件下的析氢性能。（Ni，Co） Se2纳米粒子被锚定于NCF中，有效地阻止了纳米粒子的聚集，提供了更多的催化活性位点。电催化析氢性能测试的结果表明：在1 mol·L-1KOH溶液中，（Ni，Co） Se2/NCF在10 mA·cm-2电流密度下所需的过电位为102.3 mV，塔菲尔斜率为144.0 mV·dec-1。在0.5 mol·L-1 H2SO4溶液中，（Ni，Co） Se2/NCF达到10 mA·cm-2电流密度所需的析氢过电位为95.5 mV，塔菲尔斜率为115.2 mV·dec-1，表现出优异的电催化析氢性能。 | |
| 关键词: 电催化 静电纺丝 碳纤维 双金属效应 析氢反应 | |
| 基金项目: 国家自然科学基金（No.51901055）和黑龙江省自然科学基金（No.LH2019E025）资助。 | |
| Abstract: Nitrogen-doped carbon fiber (NCF) loaded bimetal selenide nanoparticle material ((Ni,Co)Se2/NCF) was synthesized by calcination and selenium treatment using electrospun fibers as the precursor. A series of related characterization was carried out, and the hydrogen evolution properties of the materials were studied under acidic and alkaline conditions. (Ni,Co)Se2 nanoparticles were anchored in NCF, which effectively prevents the aggregation of nanoparticles and provides more catalytic active sites. The electrocatalytic hydrogen evolution test results showed that in 1 mol·L-1 KOH solution, the overpotential of (Ni,Co)Se2/NCF was 123.3 mV at the current density of 10 mA·cm-2, and the Tafel slope was 144.0 mV·dec-1. In 0.5 mol·L-1 H2SO4 solution, the overpotential of hydrogen evolution required for (Ni,Co)Se2/NCF to reach the current density of 10 mA·cm-2 was 95.5 mV, and the Tafel slope was 115.2 mV·dec-1, indicating excellent electrocatalytic hydrogen evolution performance. | |
| Keywords: electrocatalysis electrospinning carbon fiber bimetallic synergy hydrogen evolution reaction | |
| 投稿时间：2021-07-05 修订日期：2021-11-16 | |
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| 于静,张婷,刘琦,刘婧媛,王君.氮掺杂碳纤维负载镍钴硒化物的制备及其电催化析氢性能[J].无机化学学报,2022,38(1):63-72. | |
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