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通过内置电场调节/氧物种吸附 - - 驱动在异质界面的电子转移行为,以实现高效的水分裂

Wenjie Zhang¹, Lei Yang^2,3, Zhi Li¹

¹Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China.

Angewandte Chemie (International ed. in English)

|February 28, 2024

概括

开发了高效的双功能催化剂,WC1-x/Mo2C@CNF,用于性水电解 (AWE). 这些催化剂在和氧进化反应中表现出卓越的性能和稳定性,推进了经济.

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:

性水电解 (AWE) 对于经济至关重要.
开发高效的双功能催化剂,用于演变反应 (HER) 和氧演变反应 (OER),对于高效的AWE至关重要.

研究的目的:

设计和合成用于增强AWE的新型双功能催化剂.
为了研究WC1-x/Mo2C@CNF在整体水分裂中的催化活性和稳定性.

主要方法:

合成WC1-x/Mo2C纳米颗粒嵌入的碳纳米纤维 (WC1-x/Mo2C@CNF).
HER 和 OER 性能的电化学表征.
在膜电极组装装置中评估催化剂稳定性.
实验和理论研究,以了解催化机制.

主要成果:

WC1-x/Mo2C@CNF催化剂由于从Mo2C转移电子到WC1-x,因此表现出优异的HER和OER性能.
催化剂在200 mA cm-2的100小时内在整体水分裂中表现出增强的活性和稳定性.
通过不对称的电荷分布调节d频段中心,优化中间体的吸附强度.

结论:

WC1-x/Mo2C@CNF催化剂为高效和稳定的整体水分裂提供了一个有希望的策略.
这项工作为设计用于能源转换应用的先进催化剂提供了洞察力.
这些发现有助于通过改进的AWE技术推动经济的发展.

关键词:

在 WC1-x/Mo2C@CNF 中内置的电场内置的电场 d 乐队中心中心总体而言,水分化是水分化的.工作功能工作功能工作功能

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