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Pulse electrolysis: Temporal innovation for steering CO2RR pathways beyond catalyst design 脉冲电解:引导CO2RR路径超越催化剂设计的时间创新
IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2026-01-13 DOI: 10.1016/j.coelec.2026.101810
Xiaolin Liao , Minghui Quan , Xiang Peng , Abebe Reda Woldu , Liangsheng Hu
Electrochemical CO2 reduction (CO2RR) to sustainable fuels and chemicals represents a pivotal strategy for carbon neutrality, yet conventional static methods suffer from limited selectivity, instability, and energy inefficiency. This review examines pulsed CO2RR (p-CO2RR) as a transformative approach that transcends these limitations by dynamically modulating catalyst microenvironments through temporal control of applied potentials. We first establish the fundamental pulse parameters, potential amplitude, frequency, duty cycle, and period that govern interfacial processes and product distributions. Subsequently, we analyze recent advances in p-CO2RR across transition metal catalysts (Cu, Ni, Sn, Fe), highlighting breakthroughs in C1 (CO, formate, CH4) and C2+ (ethylene, ethanol, branched hydrocarbons) production. By decoupling reaction steps temporally, pulsed strategies enhance Faradaic efficiency, suppress competing hydrogen evolution, and extend catalyst stability. The review concludes with forward-looking perspectives on asymmetric pulse optimization, machine-learning-guided parameter discovery, and scalable reactor designs to accelerate the industrial adoption of dynamic electrocatalysis.
电化学二氧化碳还原(CO2RR)为可持续燃料和化学品是碳中和的关键策略,但传统的静态方法存在选择性有限、不稳定和能源效率低下的问题。本文综述了脉冲CO2RR (p-CO2RR)作为一种变革性的方法,通过对应用电位的时间控制来动态调节催化剂微环境,从而超越了这些限制。我们首先建立控制界面过程和产品分布的基本脉冲参数,电位幅度,频率,占空比和周期。随后,我们分析了过渡金属催化剂(Cu、Ni、Sn、Fe)上p-CO2RR的最新进展,重点介绍了C1 (CO、甲酸盐、CH4)和C2+(乙烯、乙醇、支链烃)生产方面的突破。通过暂时解耦反应步骤,脉冲策略提高了法拉第效率,抑制了竞争性析氢,延长了催化剂的稳定性。本文总结了不对称脉冲优化、机器学习引导参数发现和可扩展反应器设计等方面的前瞻性观点,以加速动态电催化的工业应用。
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引用次数: 0
Electrochemical tumor ablation: Applications and future prospects 电化学肿瘤消融:应用及未来展望
IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2026-01-07 DOI: 10.1016/j.coelec.2025.101809
Fei Guo , Xin Song , Kun Qian , Ting Zhu , Qiying Pei
Electrochemical tumor ablation, encompassing electrochemical therapy (EchT), irreversible electroporation (IRE), and electroporation and electrolysis (E2), has emerged as a transformative minimally invasive therapy. EchT applies sustained direct current to generate pH gradients (acidic anodes/alkaline cathodes), inducing coagulative necrosis; its procedural simplicity and cost-effectiveness are balanced against tissue dehydration and electrode instability. IRE uses high-voltage pulses to disrupt cell membranes while preserving extracellular matrix integrity, though precise electrode alignment is critical. Emerging protocols like E2 synergize mechanisms of both EchT and IRE to enhance ablation efficacy. Technological advancements, such as bioionic gel electrodes, liquid metal probes, and ultrasound-guided microprobes, improve precision and scalability. Multidisciplinary integration with immunotherapy, reactive oxygen species modulation, and artificial intelligence optimization further boosts outcomes. However, mechanistic ambiguities in electrolytic/electroporation interactions, heterogeneous clinical protocols, and insufficient safety data for novel devices remain critical barriers. Future research needs to prioritize molecular elucidation, multicenter trial validation, and personalized dosing algorithms to advance translational readiness.
电化学肿瘤消融,包括电化学治疗(EchT),不可逆电穿孔(IRE),电穿孔和电解(E2),已经成为一种变革性的微创治疗。EchT施加持续直流电产生pH梯度(酸性阳极/碱性阴极),诱导凝固性坏死;它的程序简单和成本效益是平衡组织脱水和电极不稳定性。IRE使用高压脉冲破坏细胞膜,同时保持细胞外基质的完整性,尽管精确的电极对齐是至关重要的。新兴方案如E2可协同EchT和IRE的机制以提高消融疗效。技术进步,如生物离子凝胶电极、液态金属探针和超声引导微探针,提高了精度和可扩展性。多学科结合免疫治疗、活性氧调节和人工智能优化进一步提高疗效。然而,电解/电穿孔相互作用机制的模糊性、异质临床方案和新设备安全性数据的不足仍然是关键障碍。未来的研究需要优先考虑分子解析、多中心试验验证和个性化给药算法,以推进转化准备。
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引用次数: 0
Recent advances in electrochemistry with zeolitic materials 沸石材料电化学研究进展
IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2026-01-07 DOI: 10.1016/j.coelec.2025.101808
Alain Walcarius
Despite their insulating nature and inherent lack of electrochemical activity, zeolite materials can be useful in electrochemistry due to their mechanically stable porous structure; their molecular sieving, ion exchange, and hosting properties; and their ionic conductivity. This opinion piece highlights the latest advances in the development of electrochemical methods for the production of continuous zeolite thin films, in electroanalysis and electrocatalysis, as well as the potential of zeolite materials for electrochemical energy conversion and storage.
尽管沸石材料具有绝缘性和固有的缺乏电化学活性,但由于其机械稳定的多孔结构,沸石材料在电化学中是有用的;它们的分子筛分、离子交换和承载性能;以及它们的离子电导率。这篇观点文章强调了用于生产连续沸石薄膜的电化学方法的最新进展,在电分析和电催化方面,以及沸石材料在电化学能量转换和储存方面的潜力。
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引用次数: 0
Electrochemical impedance spectroscopy for characterizing neural electrodes 表征神经电极的电化学阻抗谱
IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2026-01-03 DOI: 10.1016/j.coelec.2025.101807
Cynthia C. Eluagu , Bernard W. Biney , Stuart F. Cogan , Kevin J. Otto , Mark E. Orazem
Electrochemical impedance spectroscopy (EIS) has been extensively employed in the field of neural stimulation over the past 25 years. This review summarizes the early applications, major contributions, rudimentary use, and recent advances of EIS in neural applications. EIS is widely used in both research and clinical neurostimulation to monitor changes in electrode impedance due to foreign body response and glial encapsulation. The key parameters for in vitro and in vivo measurements are discussed along with the guidelines for data interpretation.
在过去的25年中,电化学阻抗谱(EIS)在神经刺激领域得到了广泛的应用。本文综述了EIS在神经系统中的早期应用、主要贡献、初步应用和最新进展。EIS被广泛应用于研究和临床神经刺激中,用于监测异物反应和神经胶质包封引起的电极阻抗变化。讨论了体外和体内测量的关键参数以及数据解释指南。
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引用次数: 0
Electrochemical valorization of cellulose, hemicellulose, and lignin derivates into functional products: A mini-review 纤维素、半纤维素和木质素衍生物转化为功能性产品的电化学增值:综述
IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-12-13 DOI: 10.1016/j.coelec.2025.101806
Byan Baihaqi, Yusrin Ramli, Francesco Thadeo, Abuliti Abudula, Guoqing Guan
The growing global energy demand underscores the urgent need for sustainable alternatives to fossil fuels. Biomass, as an abundant and renewable resource, offers significant potential for producing value-added chemicals and energy carriers. Among various conversion routes, electrochemical process emerges as a promising green technology, operating under mild conditions, minimizing reagent consumption, and reducing wastes. This mini-review provides an overview of recent advances in the electrochemical valorization of cellulose, hemicellulose, and lignin derivatives (particularly, glucose, xylose, and phenolic compounds) into high-value functional products. Recent progress, innovative strategies, and existing challenges are discussed, along with perspectives for future research aiming to develop more efficient electrocatalysts and integrated reaction systems for sustainable biomass valorization.
日益增长的全球能源需求凸显了寻找化石燃料的可持续替代品的迫切需要。生物质作为一种丰富的可再生资源,在生产增值化学品和能源载体方面具有巨大潜力。在各种转化途径中,电化学过程以其在温和的条件下运行、减少试剂消耗、减少浪费等优点成为一种很有前途的绿色技术。这篇综述概述了纤维素、半纤维素和木质素衍生物(特别是葡萄糖、木糖和酚类化合物)电化学增值成高价值功能产品的最新进展。讨论了最近的进展、创新策略和存在的挑战,以及未来研究的前景,旨在开发更有效的电催化剂和可持续生物质增值的综合反应系统。
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引用次数: 0
Electrochemical advances for cultural heritage science 文化遗产学的电化学进展
IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-12-13 DOI: 10.1016/j.coelec.2025.101804
Francesca Di Turo
Electrochemistry has become an increasingly powerful tool in cultural heritage science, offering minimally invasive strategies for both conservation and archaeometric research. Recent advances in Electrochemical Impedance Spectroscopy (EIS) have focused on the development of gelled electrolytes, miniaturised probes, and portable configurations, enabling reliable analyses on fragile or irregular metallic artefacts while minimising risks to their surfaces. In parallel, Voltammetry of Immobilised Microparticles (VIMP) has expanded far beyond its original application to metals, demonstrating remarkable versatility across ceramics, paper, pigments, and complex polychrome artworks. These approaches not only allow for the characterisation and discrimination of materials but also provide insights into provenance, production technologies, and long-term stability. By bridging conservation practice with archaeometric questions, electrochemical methods are emerging as cornerstone techniques in heritage science, complementing conventional analytical approaches and opening new perspectives for the study and preservation of cultural materials.
电化学已成为文化遗产科学中日益强大的工具,为保护和考古研究提供了微创策略。电化学阻抗谱(EIS)的最新进展集中在凝胶电解质、小型化探针和便携式配置的开发上,能够对易碎或不规则的金属工件进行可靠的分析,同时最大限度地降低其表面的风险。与此同时,固定微粒伏安法(VIMP)已经远远超出了其最初在金属上的应用,在陶瓷、纸张、颜料和复杂的彩色艺术品上展示了非凡的多功能性。这些方法不仅可以对材料进行表征和区分,还可以对来源、生产技术和长期稳定性提供见解。通过将保护实践与考古问题联系起来,电化学方法正在成为遗产科学的基石技术,补充了传统的分析方法,并为文化材料的研究和保护开辟了新的视角。
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引用次数: 0
Cathode chemistry innovations in anode-free aqueous zinc metal batteries 无阳极水性锌金属电池的阴极化学创新
IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-12-13 DOI: 10.1016/j.coelec.2025.101805
Huang Zhang , Yang Wang , Zhihao Zhao , Xu Liu , Stefano Passerini
The emergence of anode-free aqueous zinc metal batteries (AF-ZMBs) represents a transformative approach that combines intrinsic safety and low cost with maximized energy density. While significant research has focused on electrolyte optimization and interface engineering to enhance zinc reversibility, comprehensive analysis of cathode chemistry specifically tailored for anode-free configurations remains limited. This review systematically examines recent advancements in innovative cathode design strategies, spanning intercalation, hybrid-ion, dual-ion, and conversion mechanisms, and analyzes their respective capabilities in maintaining zinc inventory and structural stability. By critically assessing the current landscape and future potential of these cathode systems, this work aims to establish fundamental design principles for developing practical anode-free zinc battery technologies.
无阳极水锌金属电池(af - zmb)的出现代表了一种变革性的方法,它结合了固有的安全性、低成本和最大的能量密度。虽然大量的研究集中在电解质优化和界面工程上,以提高锌的可逆性,但专门针对无阳极结构的阴极化学综合分析仍然有限。本文系统地回顾了近年来在创新阴极设计策略方面的进展,包括插层、杂化离子、双离子和转化机制,并分析了各自在保持锌库存和结构稳定性方面的能力。通过批判性地评估这些阴极系统的现状和未来潜力,本工作旨在为开发实用的无阳极锌电池技术建立基本的设计原则。
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引用次数: 0
Advances in fuel cells EIS data analysis using the distribution function of relaxation times methods 利用松弛时间分布函数法分析燃料电池EIS数据的研究进展
IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-12-11 DOI: 10.1016/j.coelec.2025.101803
Shweta Pal, Yoed Tsur
Analyzing Electrochemical Impedance Spectroscopy (EIS) data measured on fuel cells is increasingly done by finding the Distribution Function of Relaxation Times (DFRT, also known as DRT). This has clear advantages in cases where the important loss mechanisms occur in series and at separable time constants. Then each peak may be attributed to a process, and its integral yields the effective loss associated with it. Recent advances in this field are briefly reviewed.
分析燃料电池的电化学阻抗谱(EIS)数据越来越多地通过寻找松弛时间分布函数(DFRT,也称为DRT)来完成。这在重要的损耗机制串联发生且时间常数可分离的情况下具有明显的优势。然后,每个峰值可归因于一个过程,其积分产生与之相关的有效损失。本文简要回顾了这一领域的最新进展。
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引用次数: 0
Electrochemical impedance spectroscopy to characterise plain and fibre-reinforced cementitious mixes 电化学阻抗谱表征普通和纤维增强胶凝混合料
IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-12-11 DOI: 10.1016/j.coelec.2025.101802
X.R. Nóvoa
EIS is an analytical technique in constant development because it can extract information from many physical, chemical, and electrochemical phenomena occurring in nature, capturing the specific relaxation time constants.
This review focuses on a particular system, a porous ceramic material with an alkaline electrolyte and embedded electronic conductors (fibres or rebars). EIS allows assessing ionic conductivity through porosity, which is relevant for the transport of chlorides in the case of rebar corrosion, the corrosion rate (via the polarisation resistance), and various self-sensing functionalities (via capacitance and ionic or electronic conductivities). Relevant examples of all those aspects are summarised in the present review.
EIS是一种不断发展的分析技术,因为它可以从自然界中发生的许多物理、化学和电化学现象中提取信息,捕获特定的弛豫时间常数。本文综述了一种特殊的系统,一种具有碱性电解质和嵌入电子导体(纤维或钢筋)的多孔陶瓷材料。EIS允许通过孔隙度评估离子电导率,这与钢筋腐蚀情况下氯化物的传输有关,腐蚀速率(通过极化电阻),以及各种自传感功能(通过电容和离子或电子电导率)。本审查总结了所有这些方面的有关例子。
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引用次数: 0
Recent advances in electrochemical capillary flow microfluidic devices 电化学毛细管流动微流控装置的研究进展
IF 6.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-12-09 DOI: 10.1016/j.coelec.2025.101801
Maxwell D. Bridges , Charles S. Henry
Electroanalytical chemistry has found incredible importance in diagnostics, healthcare, environmental monitoring and many other applications. One challenge for electroanalytical chemistry, however, is the ability to handle complex samples and/or differentiate between analytes with similar redox potentials. Historically, electrochemistry has been coupled with separation methods like liquid chromatography and capillary electrophoresis to address this problem, but this resulted in complex equipment that could not be used at the point-of-care (POC) or point-of-need (PON). With the advent of microfluidics in the 1990s, hope arose again for small, fast, accurate POC/PON devices that could address critical diagnostic needs. The first reports of electrochemistry coupled with paper-based devices followed thereafter and now the field has exploded with contributions from around the globe. This review focuses on recent advances in the field, covering roughly two years of developments with both fabrication and applications before concluding with a summary, remaining challenges, and future directions.
电分析化学在诊断、医疗保健、环境监测和许多其他应用中具有不可思议的重要性。然而,电分析化学面临的一个挑战是处理复杂样品和/或区分具有相似氧化还原电位的分析物的能力。从历史上看,电化学一直与液相色谱和毛细管电泳等分离方法相结合来解决这个问题,但这导致复杂的设备无法在护理点(POC)或需求点(PON)使用。随着20世纪90年代微流体技术的出现,小型、快速、准确的POC/PON设备再次出现了希望,这些设备可以满足关键的诊断需求。电化学与纸质设备结合的第一份报告紧随其后,现在这个领域已经爆发了来自全球各地的贡献。这篇综述的重点是该领域的最新进展,涵盖了大约两年的制造和应用的发展,然后总结了总结,仍然存在的挑战和未来的方向。
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引用次数: 0
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Current Opinion in Electrochemistry
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