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Mn3O4/CuOx heterostructure for nitrate electroreduction to ammonia
Chemical Communications ( IF 4.3 ) Pub Date : 2023-05-17 , DOI: 10.1039/d3cc00704a
Jun Hu 1 , Aijing Ma 2 , Xuan Wu 3 , Yilin Yin 4 , Dan Liu 1, 5 , Alex T Kuvarega 5 , Bhekie B Mamba 5 , Jianzhou Gui 2, 3
Chemical Communications ( IF 4.3 ) Pub Date : 2023-05-17 , DOI: 10.1039/d3cc00704a
Jun Hu 1 , Aijing Ma 2 , Xuan Wu 3 , Yilin Yin 4 , Dan Liu 1, 5 , Alex T Kuvarega 5 , Bhekie B Mamba 5 , Jianzhou Gui 2, 3
Affiliation
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Here, we designed a Mn3O4/CuOx heterostructure supported on copper foil (CF) for electrocatalytic nitrate reduction to ammonia. The selectivity and Faraday efficiency of ammonia were 96.79% and 86.55%, respectively. Multiple characterizations revealed that Mn3O4/CuOx/CF showed faster charge transfer and created more electron-deficient Mn sites, electron-rich Cu sites and large numbers of oxygen vacancies, which were conducive to improving the catalytic activity. This work may open an avenue for the construction of heterostructures as an electrocatalyst for the reduction of nitrate to ammonia.
中文翻译:
用于硝酸盐电还原氨的 Mn3O4/CuOx 异质结构
在这里,我们设计了一种负载在铜箔 (CF) 上的Mn 3 O 4 /CuO x异质结构,用于将硝酸盐电催化还原为氨。氨的选择性和法拉第效率分别为96.79%和86.55%。多重表征表明,Mn 3 O 4 /CuO x /CF表现出更快的电荷转移,产生更多的缺电子Mn位点、富电子Cu位点和大量氧空位,有利于提高催化活性。这项工作可能为构建异质结构作为将硝酸盐还原为氨的电催化剂开辟一条道路。
更新日期:2023-05-17
中文翻译:
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用于硝酸盐电还原氨的 Mn3O4/CuOx 异质结构
在这里,我们设计了一种负载在铜箔 (CF) 上的Mn 3 O 4 /CuO x异质结构,用于将硝酸盐电催化还原为氨。氨的选择性和法拉第效率分别为96.79%和86.55%。多重表征表明,Mn 3 O 4 /CuO x /CF表现出更快的电荷转移,产生更多的缺电子Mn位点、富电子Cu位点和大量氧空位,有利于提高催化活性。这项工作可能为构建异质结构作为将硝酸盐还原为氨的电催化剂开辟一条道路。