Divergent Activity Shifts of Tin‐Based Catalysts for Electrochemical CO2 Reduction: pH‐Dependent Behavior of Single‐Atom versus Polyatomic Structures DOI
Yuhang Wang, Di Zhang, Bin Sun

и другие.

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 28, 2024

Abstract Tin (Sn)‐based catalysts have been widely studied for electrochemical CO 2 reduction reaction (CO RR) to produce formic acid, but the intricate influence of structural sensitivity in single‐atom Sn (e.g., Sn−N−C) and polyatomic SnO x SnS ; =1,2) on their pH‐dependent performance remains enigmatic. Herein, we integrate large‐scale data mining (with >2,300 RR from available experimental literature during past decade), ab initio computations, machine learning force field accelerated molecular dynamic simulations, pH‐field coupled modelling unravel pH dependence. We reveal a fascinating contrast: electric response binding strength *OCHO Sn−N 4 −C exhibits opposite behaviors due differing dipole moment changes upon formation. Such leads an intriguing volcano evolution Sn. Subsequent validations turnover frequency current density under both neutral alkaline conditions well aligned with our theoretical predictions. Most importantly, analysis suggests necessity distinct optimization strategies energy different types Sn‐based catalysts.

Язык: Английский

Enhancing Electrocatalytic Activity Through Targeted Local Electrolyte Micro‐Environment DOI Open Access
Yaping Yan, Min‐Hsien Wu, Le Zhou

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract The local electrolyte micro‐environment surrounding the catalyst reaction center, including critical factors such as pH, reactant concentration, and electric field, plays a decisive role in electrocatalytic reactions water splitting. Recently, this topic has garnered significant attention due to its potential significantly enhance catalytic performance. While various strategies optimize processes have been explored, deliberate control over fundamental principles guiding these adjustments remain their early stages of development. This review provides comprehensive examination key efforts aimed at designing tailoring localized micro‐environments improve It discusses advances micro‐environmental design, methodologies for evaluating shifts, mechanistic insights driving developments. Additionally, highlights existing challenges prospective industrial applications strategies. By offering detailed analysis recent developments, aims equip researchers with practical knowledge on controlling micro‐environments, thereby accelerating progress toward real‐world processes.

Язык: Английский

Процитировано

3
Divergent Activity Shifts of Tin‐Based Catalysts for Electrochemical CO2 Reduction: pH‐Dependent Behavior of Single‐Atom versus Polyatomic Structures DOI Creative Commons
Yuhang Wang, Di Zhang, Bin Sun

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 28, 2024

Tin (Sn)-based catalysts have been widely studied for electrochemical CO

Язык: Английский

Процитировано

3
In situ construction of a built-in electric field for efficient CO2 electroreduction DOI
Zhi Qiao, Xiang Han,

Tingjie Mao

и другие.

Chemical Communications, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

CuO/In 2 O 3 heterojunction with tunable built-in field enables efficient CO -to-syngas electroreduction. Voltage-controlled CO/H ratio achieves 10 h stability. DFT shows interfacial e − transfer optimizes intermediates, suppressing HER.

Язык: Английский

Процитировано

0
Electrochemical Lattice Engineering of Bismuthene for Selective Glycine Synthesis DOI
S. Liu,

Guanzheng Wu,

Jiadi Jiang

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

Glycine plays a crucial role in various industrial and daily applications. However, traditional synthesis methods are often associated with high toxicity, energy intensity, inefficiency. This study introduces an efficient eco-friendly method for synthesizing glycine via the reductive coupling of oxalic acid nitrate using Bi metal catalyst, enhanced by lattice strain from oxide composites undergoing electrochemical transformation. At applied potential -0.76 V versus reversible hydrogen electrode (RHE), catalyst achieves impressive Faradaic efficiency (FE) 79.1%, yielding record concentration 0.17 m, substantially higher than conventional Bi-based systems. Furthermore, introduction glycolaldehyde hydroxylamine as reactants raise FE to 91.3% production rate 2433.3 µmol h-1 under identical conditions. Electrochemical analysis theoretical calculations demonstrate that expansion notably boosts facilitating NH2OH formation promoting reduction oxime intermediates. These results underscore significance engineering enhancing active site performance accelerating reaction kinetics, offering sustainable alternative methods.

Язык: Английский

Процитировано

0
Controllable Reconstruction of β-Bi2O3/Bi2O2CO3 Composite for Highly Efficient and Durable Electrochemical CO2 Conversion DOI Creative Commons
Yuxuan Xiao, Di Liu, Yang Jiao

и другие.

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Апрель 9, 2025

The uncontrollable electrochemical reduction reconstruction, leading to the destruction of well-defined structure and subsequent low durability, is main obstacle catalytic performance Bi-based composites toward CO2 reaction (eCO2RR). Herein, we address this issue through construction a novel β-Bi2O3/Bi2O2CO3 composite, which can resist reconstruction materials metallic Bi during eCO2RR process by modulating more alkaline microenvironment that facilitates formation new Bi-O bonds. synergistic interactions directional electron transfer between β-Bi2O3 Bi2O2CO3 components, together with stable composite structure, result in its superior activity selectivity for formate production high faradaic efficiencies (FEs) over 94% from -0.7 -1.1 V, remarkable durability maintenance 80% FE after continuous electrocatalysis 720 h. This work sheds light on designing advanced high-performance nanomaterials other practical applications.

Язык: Английский

Процитировано

0
Strategies for Enhancing Stability in Electrochemical CO2 Reduction DOI

Kexin Zhong,

Jing Xue,

Yuan Ji

и другие.

Chemistry - An Asian Journal, Год журнала: 2025, Номер unknown

Опубликована: Апрель 9, 2025

Abstract The electrochemical CO 2 reduction reaction (CO RR) holds significant promise as a sustainable approach to address global energy challenges and reduce carbon emissions. However, achieving long‐term stability in terms of catalytic performance remains critical hurdle for large‐scale commercial deployment. This mini‐review provides comprehensive exploration the key factors influencing RR stability, encompassing catalyst design, electrode architecture, electrolyzer optimization, operational conditions. We examine how degradation occurs through mechanisms such valence changes, elemental dissolution, structural reconfiguration, active site poisoning propose targeted strategies improvement, including doping, alloying, substrate engineering. Additionally, advancements modifications membrane enhancements, are highlighted their role improving stability. Operational parameters temperature, pressure, electrolyte composition also play crucial roles extending lifespan reaction. By addressing these diverse factors, this review aims offer deeper understanding determinants RR, laying groundwork development robust, scalable technologies efficient dioxide conversion.

Язык: Английский

Процитировано

0
Te-doped Sb catalyst for high selectivity CO2ER to formate by polarizing *OCHO via an unsymmetric adsorption DOI

Die Su,

Shujie Li,

Yujiao Xiang

и другие.

Nano Energy, Год журнала: 2025, Номер unknown, С. 111078 - 111078

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Efficient Electrocatalytic CO2 Reduction to Formate via Continuous Microfluidic Synthesis of Bi2O3/MXene‐Based Composite Catalysts with Tunable Metal Oxide Interfaces DOI

Zhenze Han,

Yuan Chang, Hongsheng Liu

и другие.

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Abstract The large‐scale applications of electrocatalytic CO 2 reduction face numerous challenges, including suppressed HER, high catalyst costs, limited production scalability, and complex synthesis processes. Combining carbon materials with bismuth‐based catalysts is an effective strategy to enhance catalytic activity at low cost. This study utilized microfluidic technology achieve mass aggregations Bi O 3 nanoparticles specific surfaces controllable size on 2D Mxene using 2, 5‐FDCA as a ligand. In‐depth understanding theoretical simulations indicates the MXene substrate significantly improved catalyst's electrochemical surface area electron transport efficiency, facilitating electrolyte penetration reactant diffusion. While support provided abundant active sites for reactions. Beyond, composite M‐Bi /MXene‐400 effectively suppress HER through synergistic effects. interaction between greatly increased stabilize structure under work. In membrane electrode assembly (MEA), it operate continuously 60 h cell potential −2.8 V, achieving current density −300 mA cm −2 average Faradaic efficiency formate exceeding 90%. work offers new strategies efficient design construction MXene‐supported nanoparticle via technology.

Язык: Английский

Процитировано

0
Divergent Activity Shifts of Tin‐Based Catalysts for Electrochemical CO2 Reduction: pH‐Dependent Behavior of Single‐Atom versus Polyatomic Structures DOI
Yuhang Wang, Di Zhang, Bin Sun

и другие.

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 28, 2024

Abstract Tin (Sn)‐based catalysts have been widely studied for electrochemical CO 2 reduction reaction (CO RR) to produce formic acid, but the intricate influence of structural sensitivity in single‐atom Sn (e.g., Sn−N−C) and polyatomic SnO x SnS ; =1,2) on their pH‐dependent performance remains enigmatic. Herein, we integrate large‐scale data mining (with >2,300 RR from available experimental literature during past decade), ab initio computations, machine learning force field accelerated molecular dynamic simulations, pH‐field coupled modelling unravel pH dependence. We reveal a fascinating contrast: electric response binding strength *OCHO Sn−N 4 −C exhibits opposite behaviors due differing dipole moment changes upon formation. Such leads an intriguing volcano evolution Sn. Subsequent validations turnover frequency current density under both neutral alkaline conditions well aligned with our theoretical predictions. Most importantly, analysis suggests necessity distinct optimization strategies energy different types Sn‐based catalysts.

Язык: Английский

Процитировано

1