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BaZrS₃,BaTiS₃,和BaVS₃的化物进化活动的矿矿

Nicholas Humphrey¹, Alicia Tsung¹, Shantanu Singh¹

¹Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles CA, USA.

Chemphyschem : a European journal of chemical physics and physical chemistry

|February 24, 2024

概括

与相比,基矿显示出电催化潜力,但高超潜力限制了它们在演化反应 (HER) 中的生存能力. 需要进一步的研究来优化这些材料.

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
计算化学计算化学

背景情况:

基矿具有适合各种应用的电子和光电子特性.
氧化矿在电催化和光电化学应用方面得到了很好的研究.
基矿被假设是优越的电催化剂,因为它们的共价性质,导电性和稳定性.

研究的目的:

调查三种基于的石化的演化反应 (HER) 活性:BaZrS3,BaTiS3和BaVS3.
为了比较这些石化基矿的催化性能与它们的氧化物对应物.
为了建立一个框架,对未来研究的化学和电化学性质的基矿.

主要方法:

对BaZrS3,BaTiS3和BaVS3.3的合成和实验性评估
密度函数理论 (DFT) 计算以确定吸附的潜在能量表面.
计算电极 (CHE) 模型的应用,以与实验数据比较计算的超电位.

主要成果:

实验和计算结果表明BaVS3是研究材料中最活跃的电催化剂.
这三种石灰化矿都表现出对HER的高过度潜力.
发现这些材料的催化活性对HER来说不如那么有效.

结论:

虽然BaVS3在测试的石化中显示出最高的HER活性,但显著的过度潜力阻碍了它们作为电催化剂的实际应用.
由于超高的潜能,基矿对HER催化作用的活力低于白金.
这项研究为探索石墨烯化物矿的电化学性质提供了基础框架.

关键词:

基化物佩洛夫斯基特.计算式的电极可以使用.密度函数理论密度函数理论电触媒溶解是一种电触媒.的演化反应反应.

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