在性电解质中,用于高效的电催化H2生成的织物样罗--氧化物纳米片
Xin Liu1, Guangliang Chen2, Yingchun Guo2
1Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China.
Journal of colloid and interface science
|January 14, 2024
概括
与相比,工程化--氧化物纳米片显示出优越的演化反应 (HER) 活性. 这种新型催化剂为高效气生产提供了低成本,高性能的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 催化剂是一种催化剂.
背景情况:
- 过渡金属氧化物是氧化演化反应 (OER) 的有希望的电催化剂.
- 然而,它们在水分裂中的应用受到性介质中演化反应 (HER) 的表现不佳的阻碍.
研究的目的:
- 在经过等离子处理的泡 (PNF) 上设计出新型类似织物的--氧化物纳米片 (Rh2O3-NiWO4).
- 评估它们作为工业级HER电催化剂的潜力,以有效生产气.
主要方法:
- 使用一阶段的热水方法在PNF上合成Rh2O3-NiWO4纳米片.
- 电催化HER活性在1.0M KOH中使用诸如时空测量和Tafel斜率测量等技术进行评估.
主要成果:
- 与商业Pt/C相比,Rh2O3-NiWO4/PNF催化剂显示出更高的HER活性.
- 在电流密度为 10 和 1000 mA cm-2 的情况下,所达到的超电位分别为 19 mV 和 293 mV.
- 催化剂在100小时内表现出快速的HER动力学 (Tafel斜率为18 mV dec-1) 和超稳定的性能.
结论:
- 开发的Rh2O3-NiWO4/PNF催化剂为HER提供了一种高性能,低成本的替代方案.
- 这项工作为设计先进的2D电催化剂提供了新的策略,用于清洁能源应用,如生产.
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