Halogen/Nitrogen Codoped Carbon Encapsulated Ni Nanoparticles for Efficient CO2 Electroreduction and High-Performance Zn-CO2 Batteries DOI
Jigang Wang, Yinggang Sun,

Meiyin Li

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: May 7, 2025

Electroreduction of CO2 (ECR) to CO or syngas is an effective approach alleviating greenhouse gas emissions. Herein, nickel nanoparticles coated with halogen/nitrogen codoped carbon were prepared (X-Ni/NC-a). Cl-Ni/NC-a can obtain three important compositions (CO:H2) under different voltages, such as 0.97, 0.51, and 0.32, which are the ratios for hydroformylation, methanol, ethanol synthesis, respectively. For Br-Ni/NC-a, Faraday efficiency (FEco) exceed 96%, a partial current density (jco) 48 mA cm-2. Additionally, Br-Ni/NC-a used in Zn-CO2 battery (ZCB); power reach 2.6 mW cm-2, charge-discharge stability 110 h. DFT calculations revealed that strong interaction between regulates electronic structure catalyst, affecting adsorption/desorption intermediates. This study provides feasible scheme halogen doping modulate selectivity ECR potential application catalysts ZCB.

Language: Английский

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

6
Tip carbon encapsulation customizes cationic enrichment and valence stabilization for low K+ acidic CO2 electroreduction DOI Creative Commons

Zhitong Wang,

Dongyu Liu,

Chenfeng Xia

et al.

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

Published: Feb. 19, 2025

Abstract Acidic electrochemical CO 2 conversion is a promising alternative to overcome the low utilization. However, over-reliance on highly concentrated K + inhibit hydrogen evolution reaction also causes (bi)carbonate precipitation interfere with catalytic performance. In this work, under screening and guidance of computational simulations, we present carbon coated tip-like O 3 electrocatalyst for stable efficient acidic synthesize formic acid (HCOOH) concentration. The layer protects oxidized species higher intrinsic activity from reductive corrosion, peripherally formulates tip-induced electric field regulate adverse H attraction desirable enrichment. an electrolyte at pH 0.94, only 0.1 M required achieve Faradaic efficiency (FE) 98.9% 300 mA cm −2 HCOOH long-time stability over100 h. By up-scaling electrode into 25 electrolyzer setup, total current 7 A recorded sustain durable production 291.6 mmol L −1 h .

Language: Английский

Citations

3
Insights into enhanced photocatalytic CO2 reduction on carbon nitride: A strategy of simultaneous O, S co-doping DOI

Hong‐Yue Wu,

Donglai Han,

Bo Hu

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116121 - 116121

Published: March 1, 2025

Language: Английский

Citations

3
Lattice Oxygen-Driven Co-Adsorption of Carbon Dioxide and Nitrate on Copper: A Pathway to Efficient Urea Electrosynthesis DOI

Xiaofeng Wei,

Shaoqing Liu, Hengjie Liu

et al.

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

Published: Feb. 10, 2025

The electrochemical coupling of CO2 and NO3– on copper-based catalysts presents a sustainable strategy for urea production while simultaneously addressing wastewater denitrification. However, the inefficient random adsorption copper surface limits interaction key carbon nitrogen intermediates, thereby impeding efficient C–N coupling. In this study, we demonstrate that residual lattice oxygen in oxide-derived nanosheets (OL-Cu) can effectively tune electron distribution, thus activating neighboring atoms generating electron-deficient (Cuδ+) sites. These Cuδ+ sites enhance stabilize *CO which enables directional at adjacent This mechanism shortens pathway achieves yield up to 298.67 mmol h–1 g–1 −0.7 V versus RHE, with an average Faradaic efficiency 31.71% high current density ∼95 mA cm–2. situ spectroscopic measurements confirmed formation tracked evolution intermediates (i.e., *CO, *NO, *OCNO, *NOCONO) during synthesis. Density functional theory calculations revealed promote coadsorption *NO3, as well *OCNO significantly improving kinetics. study underscores critical role facilitating selectivity.

Language: Английский

Citations

2
Progress in Cu‐Based Catalyst Design for Sustained Electrocatalytic CO2 to C2+ Conversion DOI Creative Commons
Dan Li, Jin‐Yuan Liu, Bin Wang

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Abstract The electrocatalytic conversion of CO 2 into valuable multi‐carbon (C 2+ ) products using Cu‐based catalysts has attracted significant attention. This review provides a comprehensive overview recent advances in catalyst design to improve C selectivity and operational stability. It begins with an analysis the fundamental reaction pathways for formation, encompassing both established emerging mechanisms, which offer critical insights design. In situ techniques, essential validating these by real‐time observation intermediates material evolution, are also introduced. A key focus this is placed on how enhance through manipulation, particularly emphasizing catalytic site construction promote C─C coupling via increasing * coverage optimizing protonation. Additionally, challenge maintaining activity under conditions discussed, highlighting reduction active charged Cu species materials reconstruction as major obstacles. To address these, describes strategies preserve sites control including novel utilization mitigation reconstruction. By presenting developments challenges ahead, aims guide future conversion.

Language: Английский

Citations

1
Enhancing catalytic CO2 reduction to carbon performance of nano-MnFe2O4 prepared from high-silica manganese ores via MgO phase reconstruction strategy DOI Creative Commons
Jia Wang, Yuanbo Zhang, Jian Su

et al.

Journal of Materiomics, Journal Year: 2025, Volume and Issue: unknown, P. 101045 - 101045

Published: March 1, 2025

Language: Английский

Citations

1
Transformation of metal-organic frameworks (MOFs) under different factors DOI

Yilei Xiang,

Suosu Wei,

Taoxiang Wang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216263 - 216263

Published: Oct. 21, 2024

Language: Английский

Citations

7
Dynamic reconstruction of Cu-doped SnO2 for efficient electrochemical reduction of CO2 to formate DOI
Ben Li, Jiadong Chen, Lihua Wang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 363, P. 124784 - 124784

Published: Nov. 5, 2024

Language: Английский

Citations

7
Interface-stabilized high-valent Sn enables efficient CO2 electroreduction to formate/formic acid across the full pH range DOI
Tingting Fan, Jiguang Zhang, Xia‐Guang Zhang

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 130, P. 110135 - 110135

Published: Aug. 24, 2024

Language: Английский

Citations

6
Size‐adjustable High‐Entropy Alloy Nanoparticles as an Efficient Platform for Electrocatalysis DOI Open Access

Huizhu Cai,

Hengpan Yang, Shijie He

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 28, 2024

Abstract The high entropy alloy (HEA) possesses distinctive thermal stability and electronic characteristics, which exhibits substantial potential for diverse applications in electrocatalytic reactions. nanosize of HEA also has a significant impact on its catalytic performance. However, accurately controlling synthesizing small nanomaterials remains challenge, especially the ultrasmall nanoparticles. Herein, we firstly calculate illustrate size structure as well adsorption energies crucial intermediates involved typical processes, such hydrogen evolution reaction (HER), oxygen reduction (ORR), CO 2 electroreduction (CO RR) NO 3 − (NO RR). Under guidance theoretical calculations, synthesize range PtRuPdCoNi nanoparticles with adjustable sizes (1.7, 2.3, 3.0, 3.9 nm) using one‐step spatially confined approach, without any further treatment. Experimentally, smaller HEAs is more favorable HER ORR performances, aligning predictions. Specifically, sized at 1.7 nm (HEA‐1.7) endows 16 mV overpotential current density 10 mA cm −2 , yielding mass activity 31.9 A mg NM −1 noble metal HER, significantly outperforming commercial Pt/C catalyst. This strategy can be easily applicable to other reactions (e.g. ) attributed richness components adjustability, presenting promising platform various advanced catalysts.

Language: Английский

Citations

6