Bismuth Iron Oxide Catalysts for Efficient CO2 Electroreduction to Formate DOI

Chunxin Xu,

Yi Wang,

Wanjun Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(30), P. 39305 - 39311

Published: July 22, 2024

Renewable energy-driven electrocatalytic CO2 reduction reaction (CO2RR) over bismuth-based catalysts shows great promise for converting into formic acid and formate while closing the carbon cycle. Herein, we report a high-performance BiFeO3/Bi25FeO40 precatalyst, which delivers partial current density of 359.8 mA cm-2 formation rate 6.71 mmol h-1 in flow cell at -0.75 V versus reversible hydrogen electrode (vs RHE). Furthermore, it stable production 88 h -0.64 vs RHE with total 160 cm-2. The impressive performance toward CO2RR to is likely ascribed synergistic effect single Bi atoms bimetallic BiFe nanoparticles present close proximity after situ electrochemical reconstruction precatalyst. This work presents new insights development highly efficient Bi-based CO2RR.

Language: Английский

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
Direct low concentration CO2 electroreduction to multicarbon products via rate-determining step tuning DOI Creative Commons

Liangyiqun Xie,

Yanming Cai, Yujing Jiang

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 29, 2024

Direct converting low concentration CO2 in industrial exhaust gases to high-value multi-carbon products via renewable-energy-powered electrochemical catalysis provides a sustainable strategy for utilization with minimized separation and purification capital energy cost. Nonetheless, the electrocatalytic conversion of dilute into value-added chemicals (C2+ products, e.g., ethylene) is frequently impeded by rate weak carbon intermediates' surface adsorption strength. Here, we fabricate range Cu catalysts comprising fine-tuned Cu(111)/Cu2O(111) interface boundary density crystal structures aimed at optimizing rate-determining step decreasing thermodynamic barriers adsorption. Utilizing engineering, attain Faradaic efficiency (51.9 ± 2.8) % partial current (34.5 6.4) mA·cm−2 C2+ feed condition (5% v/v), comparing state-of-art electrolysis. In contrast prevailing belief that activation ( $${{CO}}_{2}+{e}^{-}+\, * \,\to {}^{ }{CO}_{2}^{-}$$ ) governs reaction rate, discover that, under conditions, shifts generation *COOH $${}^{ } {{CO}}_{2}^{-}+{H}_{2}O\to {COOH}+{{OH}}^{-}({aq})$$ Cu0/Cu1+ boundary, resulting better production performance. The development operate resembling waste holds promise reduction. authors report vacuum calcination approach regulating on Cu-based can electro-catalyze low-concentration CO2.

Language: Английский

Citations

6
Rational Designing Microenvironment of Gas‐Diffusion Electrodes via Microgel‐Augmented CO2 Availability for High‐Rate and Selective CO2 Electroreduction to Ethylene DOI Creative Commons
Hesamoddin Rabiee, Mengran Li, Penghui Yan

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(40)

Published: Aug. 29, 2024

Abstract Efficient electrochemical CO 2 reduction reaction (CO RR) requires advanced gas‐diffusion electrodes (GDEs) with tunned microenvironment to overcome low availability in the vicinity of catalyst layer. Herein, for first time, pyridine‐containing microgels‐augmented is presented Cu O‐based GDE high‐rate ethylene, owing presence ‐phil microgels amine moieties. Microgels as three‐dimensional polymer networks act micro‐reservoirs engineer and boost local availability. The superior ethylene production performance modified by 4‐vinyl pyridine microgels, compared diethylaminoethyl methacrylate indicates bifunctional effect pyridine‐based enhance availability, electrocatalytic reduction. While Faradaic efficiency (FE) without was capped at 43% 300 mA cm −2 , showed 56% FE 700 . A similar trend observed zero‐gap design, GDEs 58% −4.0 cell voltage (>350 current density), resulting over 2‐fold improvement production. This study showcases use a higher rate RR‐to‐C 2+ opening an avenue several other more selective efficient electrolysis.

Language: Английский

Citations

5
Understanding Limitations in Electrochemical Conversion to CO at Low CO2 Concentrations DOI Creative Commons
Danielle A. Henckel, Prantik Saha,

Sunil Rajana

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(7), P. 3433 - 3439

Published: June 24, 2024

Low-temperature electrochemical CO2 reduction has demonstrated high selectivity for CO when devices are operated with pure streams. However, there is currently a dearth of knowledge systems operating below 30% CO2, regime interesting coupling point sources. Here we examine the influence ionomer chemistry and cell conditions on at low concentrations. Utilizing advanced diagnostics, values cathode catalyst layer ionic resistance electrocatalyst capacitance as function relative humidity (RH) were extracted correlated utilization. Staying above 20% concentration least 50% RH resulted in >95% CO/H2 regardless chemistry. At 10% however, was only obtained 95% under scenarios where resulting electrode morphology enabled

Language: Английский

Citations

4
A critical appraisal of advances in integrated CO2 capture and electrochemical conversion DOI Creative Commons
Ahmed Badreldin, Ying Li

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

Published: Jan. 1, 2025

This perspective critiques advancements in integrated CO 2 capture and electrochemical conversion, contrasting emerging methods like eRCC via amine or (bi)carbonate pathways direct ACC with traditional sequential conversion strategies.

Language: Английский

Citations

0
Direct Electroreduction of Low-Concentration CO2: Progress and Perspective DOI
Jingjing Li, Qin Xiang Xia, Xiaoran Wang

et al.

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

Published: March 13, 2025

The conversion of CO2 into carbon-based fuels and chemicals via the electrocatalytic reduction reaction (CO2RR) offers an attractive route to reducing emission for carbon neutrality. Currently, high-purity gas has been widely used as feedstock most CO2RR studies, while sources with a typically low concentration impose extra cost capture purification steps. direct utilization low-concentration is promising approach substantially address this problem. In Perspective, we first highlight prominent advantages electroreduction CO2. Then focus on summary several important design strategies in diluted impurities-containing atmosphere. Finally, propose personal outlooks future challenges some opportunities fascinating research field.

Language: Английский

Citations

0
Integrated Capture and Electrocatalytic Conversion of CO2: A Molecular Electrocatalysts Perspective DOI
Neha Gupta, Sudipta Chatterjee

Chemistry - An Asian Journal, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract The ever‐increasing concentration of atmospheric CO 2 , primarily driven by anthropogenic activities, has raised urgent environmental concerns, spurring the development carbon capture and utilization (CCU) technologies. This review focuses on integrated electrochemical conversion (ICECC), a promising approach that combines with its direct electroreduction into value‐added products. By eliminating energy‐intensive steps such as release, compression, transportation, ICECC offers more energy‐efficient cost‐effective alternative to conventional CCU methods. In this review, particular attention is given molecular electrocatalysts, which offer high tunability selectivity in reduction reaction (eCO RR). role capturing agents, including both external dual‐functional systems, critically examined understand their influence binding catalytic efficiency. Whereas significant potential, research area remains underexplored compared discusses mechanistic insights processes, highlighting key challenges potential future directions for improving catalyst design, enhancing efficiency, scaling up These developments can make critical component achieving neutrality addressing climate change.

Language: Английский

Citations

0
Electro-activated indigos intensify ampere-level CO2 reduction to CO on silver catalysts DOI Creative Commons
Zhengyuan Li, Xing Li, Ruoyu Wang

et al.

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

Published: April 3, 2025

Language: Английский

Citations

0
Microenvironment modulation induced by ethylene-glycol modification enables high activity in selective CO2 electroreduction over lead-based catalysts DOI

Yingying Shu,

Zhihao Wang, Zichen Song

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161963 - 161963

Published: April 1, 2025

Language: Английский

Citations

0
Bismuth Iron Oxide Catalysts for Efficient CO2 Electroreduction to Formate DOI

Chunxin Xu,

Yi Wang,

Wanjun Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(30), P. 39305 - 39311

Published: July 22, 2024

Renewable energy-driven electrocatalytic CO2 reduction reaction (CO2RR) over bismuth-based catalysts shows great promise for converting into formic acid and formate while closing the carbon cycle. Herein, we report a high-performance BiFeO3/Bi25FeO40 precatalyst, which delivers partial current density of 359.8 mA cm-2 formation rate 6.71 mmol h-1 in flow cell at -0.75 V versus reversible hydrogen electrode (vs RHE). Furthermore, it stable production 88 h -0.64 vs RHE with total 160 cm-2. The impressive performance toward CO2RR to is likely ascribed synergistic effect single Bi atoms bimetallic BiFe nanoparticles present close proximity after situ electrochemical reconstruction precatalyst. This work presents new insights development highly efficient Bi-based CO2RR.

Language: Английский

Citations

0