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无形V-Co-P纳米颗粒的诱导合成,用于增强演变反应

Nan Jiang¹, Jiayou Li^1,2, Bolong Jiang^1,3,4

¹Innovation Institute for Sustainable Maritime Architecture Research and Technology, Qingdao University of Technology, Qingdao 266033, PR China. jiangnan@qut.edu.cn.

Dalton transactions (Cambridge, England : 2003)

|June 19, 2023

概括

化电催化剂通过演化反应 (HER) 有效地产生. 这种具有成本效益的非贵金属催化剂在性介质中表现出色.

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:

进化反应 (HER) 对于可持续的生产至关重要.
开发高效,低成本,非贵金属电催化剂对于 HER 的广泛采用至关重要.
酸是HER电催化剂的有希望的,但通常需要优化.

研究的目的:

在碳布 (V-Co-P/CC) 上合成和描述化的化,用于演化反应 (HER).
调查瓦纳兴奋剂对化结构性,形态性和电催化性能的影响.
开发一种高效,低成本的电催化剂,用于生产.

主要方法:

低温电解-化方法用于V-Co-P/CC合成.
合成材料的结构和形态特征.
在性介质中对催化活性进行电化学评估.

主要成果:

优化的无形V0.1-Co0.9-P/CC表现出极好的HER活性.
在10 mA cm−2时达到50 mV的低超电位,并达到48.5 mV dec−1.1的Tafel斜率.
兴奋剂诱导了无形相,并引入了V-O位点,增强了电子密度和活性位点暴露.

结论:

兴奋剂将晶体化转化为无形相,显著提高了HER的性能.
兴奋剂产生的VO位点是增强电催化活性的关键.
这项研究提出了一种新的策略,用于制造HER的高性能金属化物电催化剂.

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