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Selective photocatalytic production of CH4 using Zn-based polyoxometalate as a nonconventional CO2 reduction catalyst.
Kim, Nayeong; Nam, Jung Seung; Jo, Jinhyeong; Seong, Junmo; Kim, Hyunwoo; Kwon, Youngkook; Lah, Myoung Soo; Lee, Jun Hee; Kwon, Tae-Hyuk; Ryu, Jungki.
Afiliación
  • Kim N; Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. jryu@unist.ac.kr junhee@unist.ac.kr and Emergent Hydrogen Technology R&D Center, Ulsan National Institute of Scie
  • Nam JS; Department of Chemistry, School of Nature Science, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. kwon90@unist.ac.kr and Center for Wave Energy Materials, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST),
  • Jo J; Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. jryu@unist.ac.kr junhee@unist.ac.kr.
  • Seong J; Department of Chemistry, School of Nature Science, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. kwon90@unist.ac.kr.
  • Kim H; Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. jryu@unist.ac.kr junhee@unist.ac.kr and Emergent Hydrogen Technology R&D Center, Ulsan National Institute of Scie
  • Kwon Y; Emergent Hydrogen Technology R&D Center, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Kore
  • Lah MS; Department of Chemistry, School of Nature Science, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. kwon90@unist.ac.kr.
  • Lee JH; Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. jryu@unist.ac.kr junhee@unist.ac.kr.
  • Kwon TH; Department of Chemistry, School of Nature Science, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. kwon90@unist.ac.kr and Center for Wave Energy Materials, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST),
  • Ryu J; Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. jryu@unist.ac.kr junhee@unist.ac.kr and Emergent Hydrogen Technology R&D Center, Ulsan National Institute of Scie
Nanoscale Horiz ; 6(5): 379-385, 2021 May 01.
Article en En | MEDLINE | ID: mdl-33720243
Efficient and selective production of CH4 through the CO2 reduction reaction (CO2RR) is a challenging task due to the high amount of energy consumption and various reaction pathways. Here, we report the synthesis of Zn-based polyoxometalate (ZnPOM) and its application in the photocatalytic CO2RR. Unlike conventional Zn-based catalysts that produce CO, ZnPOM can selectively catalyze the production of CH4 in the presence of an Ir-based photosensitizer (TIr3) through the photocatalytic CO2RR. Photophysical and computation analyses suggest that selective photocatalytic production of CH4 using ZnPOM and TIr3 can be attributed to (1) the exceptionally fast transfer of photogenerated electrons from TIr3 to ZnPOM through the strong molecular interactions between them and (2) effective transfer of electrons from ZnPOM to *CO intermediates due to significant hybridization of their molecular orbitals. This study provides insights into the design of novel CO2RR catalysts for CH4 production beyond the limitations in conventional studies that focus on Cu-based materials.

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanoscale Horiz Año: 2021 Tipo del documento: Article Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanoscale Horiz Año: 2021 Tipo del documento: Article Pais de publicación: Reino Unido