Chitosan-derived nano-silicon hybrid scaffolds as a robust and versatile catalyst for boosting CO2 conversion: Experimental and theoretical studies DOI
Yongjian Wang, Yixin Zheng,

Xin Cheng

et al.

Fuel, Journal Year: 2025, Volume and Issue: 392, P. 134877 - 134877

Published: March 1, 2025

Language: Английский

Manipulating the Microenvironment of Single Atoms by Switching Support Crystallinity for Industrial Hydrogen Evolution DOI
Luqi Wang, Mingyue Ma,

Chenchen Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(7)

Published: Dec. 28, 2023

Abstract Modulating the microenvironment of single‐atom catalysts (SACs) is critical to optimizing catalytic activity. Herein, we innovatively propose a strategy improve local reaction environment Ru single atoms by precisely switching crystallinity support from high crystalline and low crystalline, which significantly improves hydrogen evolution (HER) The catalyst anchored on low‐crystalline nickel hydroxide (Ru−LC−Ni(OH) 2 ) reconstructs distribution balance interfacial ions due activation effect metal dangling bonds support. Single‐site with oxidation state induces aggregation hydronium (H 3 O + ), leading formation acidic in alkaline media, breaking pH‐dependent HER As comparison, high‐crystalline (Ru−HC−Ni(OH) exhibits sluggish Volmer step conventional environment. expected, Ru−LC−Ni(OH) requires overpotentials 9 136 mV at 10 1000 mA cm −2 conditions operates stably 500 for h an seawater anion exchange membrane (AEM) electrolyzer. This study provides new perspective constructing highly active electrocatalysts.

Language: Английский

Citations

44
Synergistic effect of oxygen species and vacancy for enhanced electrochemical CO2 conversion to formate on indium oxide DOI Creative Commons
Tengfei Ma, Zihao Jiao, Haoran Qiu

et al.

eScience, Journal Year: 2024, Volume and Issue: 4(3), P. 100246 - 100246

Published: Feb. 2, 2024

Indium-based oxides are promising electrocatalysts for producing formate via CO2 reduction reaction, in which *OCHO is considered the key intermediate. Here, we identified that *COOH pathway could be preferential to produce on In2O3 of In/In2O3 heterojunction due synergistic effect oxygen species and vacancy. Specifically, *CO2 were observed related production by situ Raman spectroscopy. The theoretical calculations further demonstrated energy barrier formation was decreased presence vacancy, similar or lower than In surface. As a result, selectivity over 90% obtained prepared with 343 ± 7 mA cm–2 partial current density. Furthermore, when using Si-based photovoltaic as an supplier, 10.11% solar–to–fuel efficiency achieved.

Language: Английский

Citations

19
Tailoring CO2 Adsorption Configuration with Spatial Confinement Switches Electroreduction Product from Formate to Acetate DOI

Hua‐Qin Wang,

Heyu Sui,

Ya-Long Ding

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Multi-proton-coupled electron transfer, multitudinous intermediates, and unavoidable competing hydrogen evolution reaction during CO2 electroreduction make it tricky to control high selectivity for specific products. Here, we present spatial confinement of Fe single atoms (FeN2S2) by adjacent FeS clusters (Fe4S4) orientate the transition adsorption configuration from C,O-side O-end, which triggers a shift activated first-step protonation C–C coupling, thus switching target product HCOOH in Faraday efficiency (FE: 90.6%) on FeN2S2 CH3COOH 82.3%) Fe4S4/FeN2S2. The strength *OCHO upon solitary site is linearly related coordination number Fe–S, with predominantly produced over single-atom (ortho-substituted S atoms). Fe4S4 cluster functions as switch reduction product, can not only optimize electronic structure neighboring but also impel complete hydrocarbon intermediate *CH3, followed coupling CO2* *CH3 via synergistic catalysis This strategy provides new avenue modulate reactant model desirable pathways, potential applications diverse multistep electrochemical processes controlled selectivity.

Language: Английский

Citations

4
Recent Advances in Electrochemical CO2‐to‐Multicarbon Conversion: From Fundamentals to Industrialization DOI
Changli Wang,

Zunhang Lv,

Xiao Feng

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(47)

Published: Nov. 2, 2023

Abstract The electrochemical CO 2 (eCO )‐to‐multicarbon conversion with higher value is regarded as a potential way to promote the transformation of industrial production and green balance carbon cycle. Recently, series advances have been achieved in progress eCO ‐to‐multicarbon conversion, including in‐depth exploration coupling mechanisms, up‐to‐date development characterization techniques, novel interdisciplinary design strategies catalysts electrolytic systems. Therefore, it essential systematically overview from fundamentals industrialization, compensating for limited insufficient reviews that reported. To fill aforementioned research gap, this focused on industrialization. First, possible catalytic mechanisms are accordingly summarized order reduction, small molecule‐coupled tandem conversion. Second, situ technologies assisting rationalization presented. Third, optimizing systems briefly classified advance industrialization process. Finally, challenges perspectives further reasonably proposed, aiming offer insights following work field.

Language: Английский

Citations

31
Manipulating the Microenvironment of Single Atoms by Switching Support Crystallinity for Industrial Hydrogen Evolution DOI
Luqi Wang,

Mingyue Ma,

Chenchen Zhang

et al.

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 136(7)

Published: Dec. 28, 2023

Abstract Modulating the microenvironment of single‐atom catalysts (SACs) is critical to optimizing catalytic activity. Herein, we innovatively propose a strategy improve local reaction environment Ru single atoms by precisely switching crystallinity support from high crystalline and low crystalline, which significantly improves hydrogen evolution (HER) The catalyst anchored on low‐crystalline nickel hydroxide (Ru−LC−Ni(OH) 2 ) reconstructs distribution balance interfacial ions due activation effect metal dangling bonds support. Single‐site with oxidation state induces aggregation hydronium (H 3 O + ), leading formation acidic in alkaline media, breaking pH‐dependent HER As comparison, high‐crystalline (Ru−HC−Ni(OH) exhibits sluggish Volmer step conventional environment. expected, Ru−LC−Ni(OH) requires overpotentials 9 136 mV at 10 1000 mA cm −2 conditions operates stably 500 for h an seawater anion exchange membrane (AEM) electrolyzer. This study provides new perspective constructing highly active electrocatalysts.

Language: Английский

Citations

28
Carbon dioxide enabled hydrogen storage by methanol: Highly selective and efficient catalysis with well-defined heterogeneous catalysts DOI

Yuankang Xu,

Lu Wang, Qi Zhou

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 508, P. 215775 - 215775

Published: March 14, 2024

Language: Английский

Citations

12
Understanding and Tuning the Effects of H2O on Catalytic CO and CO2 Hydrogenation DOI
Mingrui Wang, Guanghui Zhang, Hao Wang

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(21), P. 12006 - 12085

Published: Oct. 31, 2024

Catalytic COx (CO and CO2) hydrogenation to valued chemicals is one of the promising approaches address challenges in energy, environment, climate change. H2O an inevitable side product these reactions, where its existence effect are often ignored. In fact, significantly influences catalytic active centers, reaction mechanism, performance, preventing us from a definitive deep understanding on structure-performance relationship authentic catalysts. It necessary, although challenging, clarify provide practical strategies tune concentration distribution optimize influence. this review, we focus how induces structural evolution catalysts assists processes, as well efforts understand underlying mechanism. We summarize discuss some representative tuning for realizing rapid removal or local enrichment around catalysts, along with brief techno-economic analysis life cycle assessment. These fundamental understandings further extended reactions CO CO2 reduction under external field (light, electricity, plasma). also present suggestions prospects deciphering controlling applications.

Language: Английский

Citations

11
Co-electrolysis carbon dioxide and ferrous oxide in Ca-based molten salt to iron-encapsulated carbon nanotubes with enhanced microwave absorption DOI

Wangyue Xu,

Hongwei Wang, Hao Li

et al.

Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

1
In-situ characterization technologies and theoretical calculations in carbon dioxide reduction: In-depth understanding of reaction mechanisms and rational design of electrocatalysts DOI
Rutao Wang, Xiaokun Yang, Jianpeng Zhang

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 533, P. 216541 - 216541

Published: Feb. 28, 2025

Language: Английский

Citations

1
Functionalizing Cu nanoparticles with fluoric polymer to enhance C2+ product selectivity in membraned CO2 reduction DOI
Tete Zhao, Xupeng Zong,

Jiuding Liu

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 340, P. 123281 - 123281

Published: Sept. 9, 2023

Language: Английский

Citations

17