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在NiZn_0.03中诱导的原子Zn-兴奋剂诱导的萨巴蒂尔最佳CO的催化剂₂在工业级电流密度下进行电还原

Yongxiao Tuo^1,2, Qing Lu³, Wanli Liu⁴

¹State Key Laboratory of Heavy Oil Processing, College of New Energy, China University of Petroleum (East China), Qingdao, Shandong, 266580, China.

Small (Weinheim an der Bergstrasse, Germany)

|October 20, 2023

概括

原子化电催化剂与实现了Sabatier最佳的高效的二氧化碳减少. 这种增强的-催化剂在选择性一氧化碳生产中表现出高活性和稳定性.

科学领域:

不同质的催化剂.
电触媒溶解是一种电触媒.
材料科学是一种材料科学.

背景情况:

萨巴蒂尔原理对于设计理想的异质催化剂至关重要.
在催化剂开发中,实现Sabatier最佳仍然是一个重大挑战.
基于的催化剂正在探索二氧化碳电还原 (CO2 RR).

研究的目的:

制定一项战略,以达到 CO2 RR 的 Ni 电催化剂中的 Sabatier 最佳值.
为了研究原子兴奋剂对Ni催化剂性能的影响.
为了提高二氧化碳电还原的选择性和稳定性.

主要方法:

用 (3% Zn) 对Ni电催化剂进行原子化.
关于NiZn0.03/C催化剂性能的描述.
对二氧化碳还原反应 (CO2 RR) 的电化学测试性能评估.

主要成果:

原子 Zn 兴奋剂通过 Ni-Zn 电子合适度降低了 Ni 的 d 波段中心.
*COOH和*CO中间体的平衡结合强度,降低CO2激活能量障碍.
实现了高的催化活性 (jCO>100 mA cm-2在 -0.6 V) 和选择性 (FE_CO>90%从 -0.65到 -1.15 V).
证明了卓越的长期稳定性 (FE_CO>90%85小时在-0.85V).

结论:

原子 Zn 兴奋剂是一种有效的策略,以达到 Ni 电催化剂的萨巴蒂尔最佳.
NiZn0.03/C催化剂在二氧化碳电还原方面表现出卓越的性能.
为设计用于二氧化碳转换的先进非高贵双金属电催化剂提供了洞察力.

关键词:

二氧化碳的电还原 CO2 的电还原.NiZn 双金属是什么意思约束的能量约束的能量在d频段中部,d频段中心.

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