Oriented electron transmission in polyoxometalate-metalloporphyrin organic framework for highly selective electroreduction of CO2

Yi-Rong Wang, Qing Huang, Chun-Ting He, Yifa Chen, Jiang Liu, Feng-Cui Shen and Ya-Qian Lan ()
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Yi-Rong Wang: Nanjing Normal University
Qing Huang: Nanjing Normal University
Chun-Ting He: Jiangxi Normal University
Yifa Chen: Nanjing Normal University
Jiang Liu: Nanjing Normal University
Feng-Cui Shen: Nanjing Normal University
Ya-Qian Lan: Nanjing Normal University

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract The design of highly stable, selective and efficient electrocatalysts for CO2 reduction reaction is desirable while largely unmet. In this work, a series of precisely designed polyoxometalate-metalloporphyrin organic frameworks are developed. Noted that the integration of {ε-PMo8VMo4VIO40Zn4} cluster and metalloporphyrin endows these polyoxometalate-metalloporphyrin organic frameworks greatly advantages in terms of electron collecting and donating, electron migration and electrocatalytic active component in the CO2 reduction reaction. Thus-obtained catalysts finally present excellent performances and the mechanisms of catalysis processes are discussed and revealed by density functional theory calculations. Most importantly, Co-PMOF exhibits remarkable faradaic efficiency ( > 94%) over a wide potential range (−0.8 to −1.0 V). Its best faradaic efficiency can reach up to 99% (highest in reported metal-organic frameworks) and it exhibits a high turnover frequency of 1656 h−1 and excellent catalysis stability ( > 36 h).

Date: 2018
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DOI: 10.1038/s41467-018-06938-z

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