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A Supported Pd 2 Dual‐Atom Site Catalyst for Efficient Electrochemical CO 2 Reduction
Author(s) -
Zhang Ningqiang,
Zhang Xinxin,
Kang Yikun,
Ye Chenliang,
Jin Rui,
Yan Han,
Lin Rui,
Yang Jiarui,
Xu Qian,
Wang Yu,
Zhang Qinghua,
Gu Lin,
Liu Licheng,
Song Weiyu,
Liu Jian,
Wang Dingsheng,
Li Yadong
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202101559
Subject(s) - catalysis , electrochemistry , chemistry , selectivity , atom (system on chip) , density functional theory , electron transfer , adsorption , metal , dual (grammatical number) , inorganic chemistry , electrode , computational chemistry , organic chemistry , computer science , embedded system , art , literature
Dual‐atom site catalysts (DACs) have emerged as a new frontier in heterogeneous catalysis because the synergistic effect between adjacent metal atoms can promote their catalytic activity while maintaining the advantages of single‐atom site catalysts (SACs), like 100 % atomic utilization efficiency and excellent selectivity. Herein, a supported Pd 2 DAC was synthesized and used for electrochemical CO 2 reduction reaction (CO 2 RR) for the first time. The as‐obtained Pd 2 DAC exhibited superior CO 2 RR catalytic performance with 98.2 % CO faradic efficiency at −0.85 V vs. RHE, far exceeding that of Pd 1 SAC, and coupled with long‐term stability. The density functional theory (DFT) calculations revealed that the intrinsic reason for the superior activity of Pd 2 DAC toward CO 2 RR was the electron transfer between Pd atoms at the dimeric Pd sites. Thus, Pd 2 DAC possessed moderate adsorption strength of CO*, which was beneficial for CO production in CO 2 RR.