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Gold-Incorporated Cobalt Phosphide Nanoparticles on Nitrogen-Doped Carbon for Enhanced Hydrogen Evolution Electrocatalysis
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-03-27 , DOI: 10.1021/acsami.0c02076
Xiaoyan Wang 1 , Yang Fei 2 , Wei Li 1 , Lingya Yi 1 , Bomin Feng 1 , Yixiang Pan 1 , Weihua Hu 1 , Chang Ming Li 1, 3
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-03-27 , DOI: 10.1021/acsami.0c02076
Xiaoyan Wang 1 , Yang Fei 2 , Wei Li 1 , Lingya Yi 1 , Bomin Feng 1 , Yixiang Pan 1 , Weihua Hu 1 , Chang Ming Li 1, 3
Affiliation
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Transition metal phosphides (TMPs) demonstrate great potential for hydrogen evolution reaction (HER) electrocatalysis, but their activities need further improvement. Herein we report a novel Au incorporation strategy to boost the HER catalytic performance of CoP. As a proof of concept, heterostructured Au/CoP nanoparticles dispersed on nitrogen-doped carbon with unique porosity, denoted as Au/[email protected], are synthesized by thermal treatment of Au-nanoparticle-incorporated ZIF-67 precursor. It shows excellent HER activity as well as good durability in acidic and alkaline condition, respectively, greatly outperforming its Au-free analogue, namely, [email protected] In-depth analysis suggests that the improved HER activity of Au/[email protected] is attributed to the presence of Au nanoparticles which enlarge the electrochemical active surface areas and adjust the electronic structure of active CoP species to enhance the water adsorption and optimize H adsorption for the accelerated HER process.
中文翻译:
掺氮碳上掺金的磷化钴纳米颗粒增强的析氢电催化作用
过渡金属磷化物(TMP)表现出巨大的潜力,可用于氢释放反应(HER)电催化,但其活性需要进一步提高。在这里,我们报告了一种新型的Au掺入策略,以提高CoP的HER催化性能。作为概念的证明,通过热处理掺有金纳米颗粒的ZIF-67前驱体,合成了分散在具有独特孔隙率的掺氮碳上的异质结构的Au / CoP纳米颗粒,表示为Au / [受电子邮件保护]。它在酸性和碱性条件下均显示出优异的HER活性以及良好的耐久性,大大优于其不含金的类似物,即
更新日期:2020-03-28
中文翻译:
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掺氮碳上掺金的磷化钴纳米颗粒增强的析氢电催化作用
过渡金属磷化物(TMP)表现出巨大的潜力,可用于氢释放反应(HER)电催化,但其活性需要进一步提高。在这里,我们报告了一种新型的Au掺入策略,以提高CoP的HER催化性能。作为概念的证明,通过热处理掺有金纳米颗粒的ZIF-67前驱体,合成了分散在具有独特孔隙率的掺氮碳上的异质结构的Au / CoP纳米颗粒,表示为Au / [受电子邮件保护]。它在酸性和碱性条件下均显示出优异的HER活性以及良好的耐久性,大大优于其不含金的类似物,即