Cu-doped mesoporous SnO<sub>2</sub> nanoparticles with rich grain boundaries and oxygen vacancies for photocatalytic CO<sub>2</sub>-to-CO conversion

Li, Guohui; Li, Pengyu; Ge, Zhi; Yan, Donghang; Sun, Wei; Sun, Yuanyuan; Zhou, Xiaoxia

doi:10.1039/d3cp02160b

Cited by 2 publications

(1 citation statement)

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“…Operando Raman spectroscopy was further conducted to monitor the intermediate adsorption and surface chemical environments on CdO@ZnY during the CO 2 RR (Figure S18). As displayed in Figure f, the peak at 1640 cm –1 is ascribed to *COOH , and becomes gradually stronger with the increase of potentials, suggesting that the stabilization of the *COOH intermediate on the catalyst surface is enhanced. Meanwhile, the peak at 2080 cm –1 , which corresponds to the CO stretching mode of the *CO intermediate, , appears from −0.5 V and the intensity increases steadily as the potential increases.…”

Section: Results and Discussionmentioning

confidence: 99%

Selective and Scalable CO₂ Electrolysis Enabled by Conductive Zinc Ion-Implanted Zeolite-Supported Cadmium Oxide Nanoclusters

Zhang,

Li,

Gao

et al. 2024

J. Am. Chem. Soc.

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Catalyst supports play an essential role in catalytic reactions, hinting at pronounced metal−support effects. Zeolites are a propitious support in heterogeneous catalysts, while their use in the electrocatalytic CO 2 reduction reaction has been limited as yet because of their electrically insulating nature and serious competing hydrogen evolution reaction (HER). Enlightened by theoretical prediction, herein, we implant zinc ions into the structural skeleton of a zeolite Y to strategically tailor a favorable electrocatalytic platform with remarkably enhanced electronic conduction and strong HER inhibition capability, which incorporates ultrafine cadmium oxide nanoclusters as guest species into the supercages of the tailored 12-ring window framework. The metal dbandwidth tuning of cadmium by skeletal zinc steers the extent of substrate−molecule orbital mixing, enhancing the stabilization of the key intermediate *COOH while weakening the CO poisoning effect. Furthermore, the strong cadmium−zinc interplay causes a considerable thermodynamic barrier for water dissociation in the conversion of H + to *H, potently suppressing the competing HER. Therefore, we achieve an industrial-level partial current density of 335 mA cm −2 and remarkable Faradaic efficiency of 97.1% for CO production and stably maintain Faradaic efficiency above 90% at the industrially relevant current density for over 120 h. This work provides a proof of concept of tailored conductive zeolite as a favorable electrocatalytic support for industrial-level CO 2 electrolysis and will significantly enhance the adaptability of conductive zeolite-based electrocatalysts in a variety of electrocatalysis and energy conversion applications.

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Section: Results and Discussionmentioning

confidence: 99%

Selective and Scalable CO₂ Electrolysis Enabled by Conductive Zinc Ion-Implanted Zeolite-Supported Cadmium Oxide Nanoclusters

Zhang,

Li,

Gao

et al. 2024

J. Am. Chem. Soc.

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Advances and roles of oxygen vacancies in semiconductor photocatalysts for solar-driven CO2 reduction

Lu,

Li,

Jing

et al. 2024

Surfaces and Interfaces

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Cu-doped mesoporous SnO₂ nanoparticles with rich grain boundaries and oxygen vacancies for photocatalytic CO₂-to-CO conversion

Abstract: Photocatalytic conversion of carbon dioxide into fuels provides an effective approach to realize carbon resource utilization. However, the photocatalytic efficiency is still relatively low due to the recombination of photogenerated...

Cited by 2 publications

References 42 publications

Selective and Scalable CO₂ Electrolysis Enabled by Conductive Zinc Ion-Implanted Zeolite-Supported Cadmium Oxide Nanoclusters

Selective and Scalable CO₂ Electrolysis Enabled by Conductive Zinc Ion-Implanted Zeolite-Supported Cadmium Oxide Nanoclusters

Advances and roles of oxygen vacancies in semiconductor photocatalysts for solar-driven CO2 reduction

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Cu-doped mesoporous SnO2 nanoparticles with rich grain boundaries and oxygen vacancies for photocatalytic CO2-to-CO conversion

Abstract: Photocatalytic conversion of carbon dioxide into fuels provides an effective approach to realize carbon resource utilization. However, the photocatalytic efficiency is still relatively low due to the recombination of photogenerated...

Cited by 2 publications

References 42 publications

Selective and Scalable CO2 Electrolysis Enabled by Conductive Zinc Ion-Implanted Zeolite-Supported Cadmium Oxide Nanoclusters

Selective and Scalable CO2 Electrolysis Enabled by Conductive Zinc Ion-Implanted Zeolite-Supported Cadmium Oxide Nanoclusters

Advances and roles of oxygen vacancies in semiconductor photocatalysts for solar-driven CO2 reduction

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Cu-doped mesoporous SnO₂ nanoparticles with rich grain boundaries and oxygen vacancies for photocatalytic CO₂-to-CO conversion

Selective and Scalable CO₂ Electrolysis Enabled by Conductive Zinc Ion-Implanted Zeolite-Supported Cadmium Oxide Nanoclusters

Selective and Scalable CO₂ Electrolysis Enabled by Conductive Zinc Ion-Implanted Zeolite-Supported Cadmium Oxide Nanoclusters