Dynamic transformation of cubic copper catalysts during CO(2) electroreduction and its impact on catalytic selectivity.
Dynamic transformation of cubic copper catalysts during CO(2) electroreduction and its impact on catalytic selectivity.
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立方相铜催化剂在CO(2)电还原过程中的动态变化及其对催化选择性的影响。
DOI:
10.1038/s41467-021-26743-5
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发表时间:
2021-11-18
影响因子:
16.6
通讯作者:
Roldan Cuenya B
中科院分区:
文献类型:
--
作者:
Grosse P;Yoon A;Rettenmaier C;Herzog A;Chee SW;Roldan Cuenya B
To rationally design effective and stable catalysts for energy conversion applications, we need to understand how they transform under reaction conditions and reveal their underlying structure-property relationships. This is especially important for catalysts used in the electroreduction of carbon dioxide where product selectivity is sensitive to catalyst structure. Here, we present real-time electrochemical liquid cell transmission electron microscopy studies showing the restructuring of copper(I) oxide cubes during reaction. Fragmentation of the solid cubes, re-deposition of new nanoparticles, catalyst detachment and catalyst aggregation are observed as a function of the applied potential and time. Using cubes with different initial sizes and loading, we further correlate this dynamic morphology with the catalytic selectivity through time-resolved scanning electron microscopy measurements and product analysis. These comparative studies reveal the impact of nanoparticle re-deposition and detachment on the catalyst reactivity, and how the increased surface metal loading created by re-deposited nanoparticles can lead to enhanced C2+ selectivity and stability. Understanding the changes that occur in catalysts during reaction are key to the rational design. Here, the authors use electrochemical transmission electron microscopy and time-resolved product analysis to unveil how cubic copper oxide catalysts evolve during electrochemical CO2 reduction, linking their structural transformations with their selectivity.
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影响因子:
16.6
作者:
Huang J;Hörmann N;Oveisi E;Loiudice A;De Gregorio GL;Andreussi O;Marzari N;Buonsanti R
通讯作者:
Buonsanti R
DOI:
10.1002/anie.202007136
发表时间:
2020-10-05
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Möller T;Scholten F;Thanh TN;Sinev I;Timoshenko J;Wang X;Jovanov Z;Gliech M;Roldan Cuenya B;Varela AS;Strasser P
通讯作者:
Strasser P
影响因子:
15
作者:
Jung, Hyejin;Lee, Si Young;Hwang, Yun Jeong
通讯作者:
Hwang, Yun Jeong
影响因子:
17.1
作者:
Pena, Nathaly Ortiz;Ihiawakrim, Dris;Ersen, Ovidiu
通讯作者:
Ersen, Ovidiu
影响因子:
56.7
作者:
Aran-Ais, Rosa M.;Scholten, Fabian;Roldan Cuenya, Beatriz
通讯作者:
Roldan Cuenya, Beatriz