Charge Transfer Reactions in CO 2  Electroreduction on Manganese Doped Ceria | Zendy

Huang Zhidong | Zendy; Shang Lei | Zendy; Qi Huiying | Zendy; Zhao Zhe | Zendy; Tu Baofeng | Zendy; Yang Weishen | Zendy; Cheng Mojie | Zendy

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Charge Transfer Reactions in CO 2 Electroreduction on Manganese Doped Ceria

Author(s) -

Huang Zhidong,

Shang Lei,

Qi Huiying,

Zhao Zhe,

Tu Baofeng,

Yang Weishen,

Cheng Mojie

Publication year - 2019

Publication title -

chemelectrochem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 59

ISSN - 2196-0216

DOI - 10.1002/celc.201801427

Subject(s) - manganese , electrochemistry , chemistry , doping , charge (physics) , inorganic chemistry , activation energy , carbon fibers , redox , carbon dioxide , electrode , materials science , organic chemistry , physics , optoelectronics , quantum mechanics , composite number , composite material

The key to electrochemical conversion of carbon dioxide (CO 2 ) into fuels lies in effient charge transfer reactions. Here, we depict from the polarzation resistance analysis that the electroreduction of CO 2 to CO on manganese doped ceria (CMO) passes through two elementary charge transfer reactions. One reaction is asscociated with( C O 3 ) O , S • •to( C O 3 ) O , S • and another associated with( C O 3 ) O , S • to CO. As the rate determing step, the first one has an apparenent acitvation energy of 178.7 kJ mol −1 and a pressure dependence ofP C O 20 . 76P C O 0 . 24. The second one has an apparent acitvation energy of 100.6 kJ mol −1 and a pressure dependence ofP C O 20 . 27P C O 0 . 73. Based on the experimental results, we give the kenetic expression for the CO 2 electroreduction rate on CMO.

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