Au3+ Species-Induced Interfacial Activation Enhances Metal–Support Interactions for Boosting Electrocatalytic CO2 Reduction to CO DOI

Xiaochen Sun,

Kun Yuan,

Jun‐Hao Zhou

et al.

ACS Catalysis, Journal Year: 2021, Volume and Issue: 12(2), P. 923 - 934

Published: Dec. 30, 2021

The interfacial interactions between the metal and support play a crucial role in electrocatalytic CO2 reduction reaction (CO2RR). In order to promote strong metal–support (SMSIs) of interface, herein, we developed novel synthetic strategy that utilized deposited Au3+ species induce Au–CeO2 interface activation by electrochemical pretreatment. This unique configuration made Au nanoparticles partially be encapsulated CeO2 generate fraction surface with positive charges. obtained catalyst exhibited significantly enhanced selectivity activity CO2RR CO high Faradaic efficiency about 95% under wide potential range from −0.7 −1.0 V. superior performance was attributed activated over which abundant Auδ+ oxygen vacancies generated SMSIs could then accelerate formation *COOH intermediate CO2RR. extended other supports including carbon ZrO2. existence strengthened (MSIs) Faradic obviously higher than catalysts prepared traditional NaBH4 method thus gave new catalytic insights for developing robust supported gold nanocatalysts CO-related important heterogeneous reactions.

Language: Английский

Realizing methanol synthesis from CO and water via the synergistic effect of Cu0/Cu+ over Cu/ZrO2 catalyst DOI
Yuan Fang, Fan Wang, Yang Chen

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 93, P. 126 - 134

Published: Feb. 7, 2024

Language: Английский

Citations

26
Chemical engineering solution for carbon neutrality in cement industry: Tailor a pathway from inevitable CO2 emission into syngas DOI
Bin Shao, Yuanming Zhu, Jun Hu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 483, P. 149098 - 149098

Published: Jan. 26, 2024

Language: Английский

Citations

22
Sun-simulated-driven production of high-purity methanol from carbon dioxide DOI Creative Commons
Jiqing Jiao,

Yanbin Ma,

Xiaoqian Han

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 20, 2025

CO2 conversion to CH3OH under mild conditions is of particular interest yet rather challenging. Both electro- and thermo-catalytic reduction can only produce in low concentration (typically mixed with water), requiring energy-intensive purification processes. Here we design a sun-simulated-driven tandem catalytic system comprising electroreduction syngas, further photothermal into high-purity (volume fraction > 97%). We construct self-supporting electrocatalyst featuring dual active sites Ni single atoms encapsulated Co nanoparticles, which could syngas constant H2:CO ratio ~2 via solar-powered electroreduction. The generated subsequently fed the module, 1 sun-light irradiation, rate 0.238 gCH3OH gcat–1 h–1. This work demonstrates feasible sustainable route for directly converting CH3OH. Here, authors report <97%).

Language: Английский

Citations

2
Distance for Communication between Metal and Acid Sites for Syngas Conversion DOI
Yubing Li,

Mengheng Wang,

Suhan Liu

et al.

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(15), P. 8793 - 8801

Published: July 8, 2022

Unraveling the proximity influence between different sites in tandem catalysis is particularly challenging. Herein, we evaluate distance effect on communication metal and acid a methanol-mediated syngas conversion system. A series of catalysts composed ZnZrOx zeolites with levels from millimeter scale to nanoscale were evaluated olefins (STO), gasoline (STG), aromatics (STA) reactions. The requirements are dependent diffusivity reaction intermediates formation mechanism products. STO STG reactions follow simple mechanism, which not sensitive as long gaseous methanol could fast diffuse sites. Whereas synergistic for evidenced, i.e., dehydro-aromatization step must be promoted by intimate contact eliminate surface hydrogen species recombinative desorption.

Language: Английский

Citations

69
Au3+ Species-Induced Interfacial Activation Enhances Metal–Support Interactions for Boosting Electrocatalytic CO2 Reduction to CO DOI

Xiaochen Sun,

Kun Yuan,

Jun‐Hao Zhou

et al.

ACS Catalysis, Journal Year: 2021, Volume and Issue: 12(2), P. 923 - 934

Published: Dec. 30, 2021

The interfacial interactions between the metal and support play a crucial role in electrocatalytic CO2 reduction reaction (CO2RR). In order to promote strong metal–support (SMSIs) of interface, herein, we developed novel synthetic strategy that utilized deposited Au3+ species induce Au–CeO2 interface activation by electrochemical pretreatment. This unique configuration made Au nanoparticles partially be encapsulated CeO2 generate fraction surface with positive charges. obtained catalyst exhibited significantly enhanced selectivity activity CO2RR CO high Faradaic efficiency about 95% under wide potential range from −0.7 −1.0 V. superior performance was attributed activated over which abundant Auδ+ oxygen vacancies generated SMSIs could then accelerate formation *COOH intermediate CO2RR. extended other supports including carbon ZrO2. existence strengthened (MSIs) Faradic obviously higher than catalysts prepared traditional NaBH4 method thus gave new catalytic insights for developing robust supported gold nanocatalysts CO-related important heterogeneous reactions.

Language: Английский

Citations

67