Bridging Innovations of Phase Change Heat Transfer to Electrochemical Gas Evolution Reactions DOI
Lenan Zhang, Ryuichi Iwata, Zhengmao Lu

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(17), P. 10052 - 10111

Published: Aug. 28, 2024

Bubbles play a ubiquitous role in electrochemical gas evolution reactions. However, mechanistic understanding of how bubbles affect the energy efficiency processes remains limited to date, impeding effective approaches further boost performance systems. From perspective analogy between heat and mass transfer, reactions exhibit highly similar dynamic behaviors them liquid–vapor phase change. Recent developments change systems have substantially advanced fundamental knowledge bubbles, leading unprecedented enhancement transfer performance. In this Review, we aim elucidate promising opportunity bubble dynamics through lens transfer. We first provide background about key parallels Then, discuss across multiple length scales, with an emphasis on exciting research problems inspired by new insights gained from Lastly, review advances engineered surfaces for manipulating enhance providing outlook design high-performance evolving electrodes.

Language: Английский

Gas Evolution in Water Electrolysis DOI
Paul A. Kempler, Robert H. Coridan, Long Luo

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 11, 2024

Gas bubbles generated by the hydrogen evolution reaction and oxygen during water electrolysis influence energy conversion efficiency of production. Here, we survey what is known about interaction gas electrode surfaces on practicable devices used for electrolysis. We outline physical processes occurring life cycle a bubble, summarize techniques to characterize phenomena in situ practical device environments, discuss ways that electrodes can be tailored facilitate removal at high current densities. Lastly, review efforts model behavior individual multiphase flows produced gas-evolving electrodes. conclude our with short summary outstanding questions could answered future electrochemical environments or improved simulations flows.

Language: Английский

Citations

31

Rational design of local microenvironment for electrocatalytic water splitting DOI
Xiang Li,

Wangchuan Zhu,

Yanqun Zhang

et al.

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(14), P. 4080 - 4106

Published: Jan. 1, 2024

This summary describes the effects of wettability, local pH, interfacial water structure, and electrolyte composition on interface reactant compositions, key intermediate adsorption, reaction kinetics.

Language: Английский

Citations

16

Catalytic electrode comprising a gas diffusion layer and bubble-involved mass transfer in anion exchange membrane water electrolysis: A critical review and perspectives DOI Creative Commons

Ning Yang,

Haonan Li, Xiao Lin

et al.

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

Published: Feb. 1, 2025

Language: Английский

Citations

6

High H2O2 production in membrane-free electrolyzer via anodic bubble shielding towards robust rural disinfection DOI Creative Commons
Kexin Yi, Chao Li,

Shaogang Hu

et al.

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

Published: Feb. 22, 2025

Hydrogen peroxide (H2O2) can be sustainably synthesized through the electrochemical oxygen reduction reaction in a dual-chamber water electrolyzer separated by expensive ion exchange (IX) membranes. The development of an IX membrane-free has been limited direct anodic degradation produced H2O2. Here, we devise bubble shielding strategy using low-cost polytetrafluoroethylene hydrophobic porous layer (HPL) on anode that enables numerous sites for anodically generated bubbles and significantly suppresses H2O2 electrolyte. production increases ~600% compared to non-bubble shielded anode. A high concentration 10.05 ± 0.05 g L−1 at 40 mA cm−2 obtained with both HPL-coated cathode. solar-driven disinfection device equipped electrodes achieves >99.9% E. coli inactivation within 60 min. This innovative approach achieving concentrations electrolyzers more generally provides insights fine tuning three-phase interfaces could applicable other reactions pathways applications. economical electrosynthesis is authors report suppress reverse engineering gas-water-electrode interface, thus enabling electrolyzer.

Language: Английский

Citations

2

Superhydrophilic/superaerophobic NiFe with internal bubble flow channels for electrocatalytic water splitting DOI

Yucheng Dong,

H. Y. Wang, Xuyun Wang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 150953 - 150953

Published: April 2, 2024

Language: Английский

Citations

14

Fluid Unidirectional Transport Induced by Structure and Ambient Elements across Porous Materials: From Principles to Applications DOI

Kaisong Huang,

Yifan Si, Jinlian Hu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(32)

Published: May 30, 2024

Spontaneous or nonspontaneous unidirectional fluid transport across multidimension can occur under specific structural designs and ambient elements for porous materials. While existing reviews have extensively summarized on surfaces, there is an absence of literature summarizing fluid's This review introduces wetting phenomena observed natural biological surfaces structures. Subsequently, it offers overview diverse principles potential applications in this field, emphasizing various physical chemical (surface energy, capillary size, topographic curvature) (underwater, oil, pressure, solar energy). Applications encompass moisture-wicking fabric, sensors, skincare, fog collection, oil-water separation, electrochemistry, liquid-based gating, evaporators. Additionally, significant formulas from studies are compelled to offer readers valuable references. Simultaneously, advantages challenges critically assessed these the perspectives presented.

Language: Английский

Citations

13

Bubbles Management for Enhanced Catalytic Water Splitting Performance DOI Open Access
Zheng Zhang, Chen Gu, Kun Wang

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(4), P. 254 - 254

Published: April 11, 2024

Water splitting is widely acknowledged as an efficient method for hydrogen production. In recent years, significant research efforts have been directed towards developing cost-effective electrocatalysts. However, the management of bubbles formed on electrode surface during electrolysis has largely overlooked. These can impede active sites, resulting in decreased catalytic performance and stability, especially at high current densities. Consequently, this impediment affects energy conversion efficiency water splitting. To address these challenges, review offers a comprehensive overview advanced strategies aimed improving mitigating obstructive effects primarily involve utilization experimental apparatus to observe bubble-growth behavior, encompassing nucleation, growth, detachment stages. Moreover, examines factors influencing bubble formation, considering both mechanical behaviors internal factors. Additionally, design water-splitting catalysts discussed, focusing modifying electrode-surface characteristics. Finally, concludes by summarizing potential large-scale industrial production identifying future directions achieving

Language: Английский

Citations

12

Harvesting energy from marine: Seawater electrolysis for hydrogen production DOI
Weibo Zhang,

Yicui Wei,

Jingde Li

et al.

Fuel, Journal Year: 2024, Volume and Issue: 377, P. 132782 - 132782

Published: Aug. 14, 2024

Language: Английский

Citations

11

Three‐dimensional‐printed Ni‐based scaffold design accelerates bubble escape for ampere‐level alkaline hydrogen evolution reaction DOI Creative Commons
Jingxuan Chen,

Gangwen Fu,

Yu Tian

et al.

Interdisciplinary materials, Journal Year: 2024, Volume and Issue: 3(4), P. 595 - 606

Published: April 29, 2024

Abstract Alkaline hydrogen evolution reaction (HER) for scalable production largely hinges on addressing the sluggish bubble‐involved kinetics traditional Ni‐based electrode, especially ampere‐level current densities and beyond. Herein, 3D‐printed sulfide (3DPNS) electrodes with varying scaffolds are designed fabricated. In situ observations at microscopic levels demonstrate that bubble escape velocity increases number of hole sides (HS) in scaffolds. Subsequently, we conduct multiphysics field simulations to illustrate as shapes transition from square, pentagon, hexagon circle, where a noticeable reduction bubble‐attached HS length pressure balance time around bubbles results decrease size an acceleration rate escape. Ultimately, 3DPNS electrode circular configurations exhibits most favorable HER performance overpotential 297 mV density up 1000 mA cm −2 120 h. The present study highlights effective scaffold design promotes low‐cost low‐energy green through alkaline HER.

Language: Английский

Citations

10

Superhydrophilic and Underwater Superaerophobic Dual-Function Peony-Shaped Selenide Micro–nano Array Self-Supported Electrodes for High-Efficiency Overall Water Splitting Driven by Renewable Energy DOI

Leihuan Mu,

Yali Yao, Qinghua Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(37), P. 49349 - 49361

Published: Sept. 4, 2024

With the intensification of global environmental pollution and resource scarcity, hydrogen has garnered significant attention as an ideal alternative to fossil fuels due its high energy density nonpolluting nature. Consequently, urgent development electrocatalytic water-splitting electrodes for production is imperative. In this study, a superwetting selenide catalytic electrode with peony-flower-shaped micronano array (MoS

Language: Английский

Citations

10