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Cu/CuxO/Graphdiyne Tandem Catalyst for Efficient Electrocatalytic Nitrate Reduction to Ammonia.
Feng, Xueting; Liu, Jiyuan; Kong, Ya; Zhang, Zixuan; Zhang, Zedong; Li, Shuzhou; Tong, Lianming; Gao, Xin; Zhang, Jin.
Afiliación
  • Feng X; Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China.
  • Liu J; School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
  • Kong Y; Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China.
  • Zhang Z; Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China.
  • Zhang Z; Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China.
  • Li S; Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China.
  • Tong L; School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
  • Gao X; Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China.
  • Zhang J; Beijing National Laboratory for Molecular Sciences, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China.
Adv Mater ; : e2405660, 2024 Jun 17.
Article en En | MEDLINE | ID: mdl-38884637
ABSTRACT
The electrocatalytic reduction reaction of nitrate (NO3 -) to ammonia (NH3) is a feasible way to achieve artificial nitrogen cycle. However, the low yield rate and poor selectivity toward NH3 product is a technical challenge. Here a graphdiyne (GDY)-based tandem catalyst featuring Cu/CuxO nanoparticles anchored to GDY support (termed Cu/CuxO/GDY) for efficient electrocatalytic NO3 - reduction is presented. A high NH3 yield rate of 25.4 mg h-1 mgcat. -1 (25.4 mg h-1 cm-2) with a Faradaic efficiency of 99.8% at an applied potential of -0.8 V versus RHE using the designed catalyst is achieved. These performance metrics outperform most reported NO3 - to NH3 catalysts in the alkaline media. Electrochemical measurements and density functional theory reveal that the NO3 - preferentially attacks Cu/CuxO, and the GDY can effectively catalyze the reduction of NO2 - to NH3. This work highlights the efficacy of GDY as a new class of tandem catalysts for the artificial nitrogen cycle and provides powerful guidelines for the design of tandem electrocatalysts.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2024 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2024 Tipo del documento: Article Pais de publicación: Alemania