Deciphering Structure‐Activity Relationship Towards CO2 Electroreduction over SnO2 by A Standard Research Paradigm

Author:

Guo Zhongyuan12ORCID,Yu Yihong3ORCID,Li Congcong4ORCID,Campos dos Santos Egon2ORCID,Wang Tianyi2ORCID,Li Huihui4ORCID,Xu Jiang1ORCID,Liu Chuangwei5ORCID,Li Hao2ORCID

Affiliation:

1. College of Environmental and Resource Sciences Zhejiang University Hangzhou 310058 China

2. Advanced Institute for Materials Research (WPI-AIMR) Tohoku University Sendai 980-8577 Japan

3. Key Lab for Anisotropy and Texture of Materials School of Materials Science and Engineering Northeastern University Shenyang 110819 China

4. Key Laboratory for Ultrafine Materials of Ministry of Education School of Chemical Engineering East China University of Science and Technology Shanghai 200237 China

5. State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China

Abstract

AbstractAuthentic surface structures under reaction conditions determine the activity and selectivity of electrocatalysts, therefore, the knowledge of the structure‐activity relationship can facilitate the design of efficient catalyst structures for specific reactivity requirements. However, understanding the relationship between a more realistic active surface and its performance is challenging due to the complicated interface microenvironment in electrocatalysis. Herein, we proposed a standard research paradigm to effectively decipher the structure‐activity relationship in electrocatalysis, which is exemplified in the CO2 electroreduction over SnO2. The proposed practice has aided in discovering authentic/resting surface states (Sn layer) of SnO2 accountable for the electrochemical CO2 reduction reaction (CO2RR) performance under electrocatalytic conditions, which then is corroborated in the subsequent CO2RR experiments over SnO2 with different morphologies (nanorods, nanoparticles, and nanosheets) in combination with in situ characterizations. This proposed methodology is further extended to the SnO electrocatalysts, providing helpful insights into catalytic structures. It is believed that our proposed standard research paradigm is also applicable to other electrocatalytic systems, in the meantime, decreases the discrepancy between theory and experiments, and accelerates the design of catalyst structures that achieve sustainable performance for energy conversion.

Funder

National Natural Science Foundation of China

National Key Research and Development Program of China

Fundamental Research Funds for the Central Universities

Publisher

Wiley

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