Current Opinion in Electrochemistry最新文献

英文中文

In-situ spectroelectrochemical analysis for understanding photophysical properties of halide perovskite nanocrystals

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry

Pub Date : 2025-02-27 DOI: 10.1016/j.coelec.2025.101676

Byeongsung Kim , Bárbara Vallejos-Díaz , Andrés F. Gualdrón-Reyes , Seog Joon Yoon , Donghoon Han

Halide perovskite nanocrystals (PNCs) are promising materials for optoelectronic devices and photocatalysts in solar photoelectrochemical (PEC) reactions due to their redox properties. These systems rely on effective charge separation, recombination, and transport under electrochemical bias or light irradiation within charge-transporting environments. However, the stability of PNCs is significantly influenced by the solvents and electrolytes used, often leading to irreversible structural transformations and loss of intrinsic properties. This review emphasizes the importance of electrochemical and in-situ spectroelectrochemical techniques for characterizing PNCs’ redox properties, band structure, and halide defect sites that drive redox reactions and structural deformation. The discussion provides insights into modifying PNCs for use in optoelectronic devices or PEC cells and introduces innovative strategies to enhance their structural stability and improve device performance. This comprehensive analysis aims to bridge material stability and functional optimization in PNC-based applications.

{"title":"In-situ spectroelectrochemical analysis for understanding photophysical properties of halide perovskite nanocrystals","authors":"Byeongsung Kim , Bárbara Vallejos-Díaz , Andrés F. Gualdrón-Reyes , Seog Joon Yoon , Donghoon Han","doi":"10.1016/j.coelec.2025.101676","DOIUrl":"10.1016/j.coelec.2025.101676","url":null,"abstract":"<div><div>Halide perovskite nanocrystals (PNCs) are promising materials for optoelectronic devices and photocatalysts in solar photoelectrochemical (PEC) reactions due to their redox properties. These systems rely on effective charge separation, recombination, and transport under electrochemical bias or light irradiation within charge-transporting environments. However, the stability of PNCs is significantly influenced by the solvents and electrolytes used, often leading to irreversible structural transformations and loss of intrinsic properties. This review emphasizes the importance of electrochemical and <em>in-situ</em> spectroelectrochemical techniques for characterizing PNCs’ redox properties, band structure, and halide defect sites that drive redox reactions and structural deformation. The discussion provides insights into modifying PNCs for use in optoelectronic devices or PEC cells and introduces innovative strategies to enhance their structural stability and improve device performance. This comprehensive analysis aims to bridge material stability and functional optimization in PNC-based applications.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"51 ","pages":"Article 101676"},"PeriodicalIF":7.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Throwing Light on Synthetic Molecular Photoelectrocatalysis (Part II): selected recent transformations of organic compounds and a future perspective in organic synthesis

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry

Pub Date : 2025-02-25 DOI: 10.1016/j.coelec.2025.101674

Erick Steven Patiño-Alonzo , José Manuel Ramos-Villaseñor , Julio Romero-Ibañez , Bernardo A. Frontana-Uribe

Photoredox catalysis (PRC) and organic electrosynthesis (OES) have demonstrated their value in activating molecules and achieving important chemical transformations that would be impossible by other conventional strategies. Although there are specific situations where these techniques have yet to be effective alone, their combination, molecular photoelectrocatalysis (M-PEC), has made it possible to achieve transformations of molecules with otherwise unattainable redox potentials. In this current opinion, we analyze how M-PEC has enhanced or unlocked some selected transformations. Particularly, M-PEC variants of olefination, imine reduction, oxygenation of C(sp3)-H bonds, C(sp²)-H trifluoromethylation, C(sp²)-F functionalization, C(sp³)-X borylation will be revised and compared to their PRC and OES counterparts to highlight the importance of adapting (or combining) both techniques in constructing molecules. Also, a section related to asymmetric M-PEC is reviewed.

{"title":"Throwing Light on Synthetic Molecular Photoelectrocatalysis (Part II): selected recent transformations of organic compounds and a future perspective in organic synthesis","authors":"Erick Steven Patiño-Alonzo , José Manuel Ramos-Villaseñor , Julio Romero-Ibañez , Bernardo A. Frontana-Uribe","doi":"10.1016/j.coelec.2025.101674","DOIUrl":"10.1016/j.coelec.2025.101674","url":null,"abstract":"<div><div>Photoredox catalysis (PRC) and organic electrosynthesis (OES) have demonstrated their value in activating molecules and achieving important chemical transformations that would be impossible by other conventional strategies. Although there are specific situations where these techniques have yet to be effective alone, their combination, molecular photoelectrocatalysis (M-PEC), has made it possible to achieve transformations of molecules with otherwise unattainable redox potentials. In this current opinion, we analyze how M-PEC has enhanced or unlocked some selected transformations. Particularly, M-PEC variants of olefination, imine reduction, oxygenation of C(sp3)-H bonds, C(sp<sup>2</sup>)-H trifluoromethylation, C(sp<sup>2</sup>)-F functionalization, C(sp<sup>3</sup>)-X borylation will be revised and compared to their PRC and OES counterparts to highlight the importance of adapting (or combining) both techniques in constructing molecules. Also, a section related to asymmetric M-PEC is reviewed.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"51 ","pages":"Article 101674"},"PeriodicalIF":7.9,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in electro-optical methods for monitoring confined spaces

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry

Pub Date : 2025-02-20 DOI: 10.1016/j.coelec.2025.101672

Dong Liu , Siyuan Wang , Shuda Liu , Yi-Lun Ying , Yi-Tao Long

Understanding the interfacial behaviors of electroactive materials at the electrode is critically important for advancing electrochemical sensing and catalysis. Coupling electrochemistry with optical methods is emerging as a powerful tool for single-entity analysis, favoring in-depth insights into electrochemical processes. This review focuses on recent advances in electro-optical methods for monitoring confined spaces. The effects from light irradiation on the regulation of electrochemical behaviors of probes at nano/microelectrode are discussed, as revealed through collision electrochemistry-based strategies for single-entity analysis. Advances in the coupling of electrochemistry with fluorescence for the detection of single molecules and single cells are summarized. Finally, we highlight the achievements in electrochemical surface-enhanced Raman spectroscopy for interpreting redox reaction mechanisms at metal confinement.

引用次数: 0

Atomistic simulations of heterogeneous electrocatalysis at the center of sustainable carbon feedstocks

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry

Pub Date : 2025-02-14 DOI: 10.1016/j.coelec.2025.101671

Stefan Ringe , Gabriele Raabe

In the face of global warming, the electrochemical valorization of sustainable carbon feedstocks has a high potential to advance green chemistry and promote environmentally friendly practices. Computational simulations have become indispensable in shedding light on specific aspects of electrocatalytic processes. Modern techniques incorporate the effects of the electric double layer, enhancing their ability to model realistic systems. This review provides an overview and critical discussion of the latest developments. Density functional theory remains the preferred method for studying electrode reactions and interfacial effects on stationary or short-time scales. In contrast, force field-based methods excel at providing a full statistical sampling of solid–liquid interfaces. Machine learning techniques represent a critical step toward desirable multi-purpose, multi-scale methods that deliver high accuracy and coupling across multiple time and length scales.

引用次数: 0

Prospects of using high entropy oxides as catalysts for the oxygen evolution reaction

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry

Pub Date : 2025-02-13 DOI: 10.1016/j.coelec.2025.101670

Katrine Louise Svane

High entropy oxides (HEOs), containing five or more different metal atoms in addition to oxygen, present a large composition space with rich opportunity to optimise the material properties towards specific applications. Here, the potential of HEOs as electrocatalysts for the oxygen evolution reaction is reviewed. Using rutile oxides as an example, it is demonstrated how the balance between different reaction pathways can be modified by alloying, affecting both activity and stability. Furthermore, alloying leads to changes in the electronic structure, including changes in conductivity and charge transfer between elements. For rutile oxides, the charge transfer improves the activity of the less active elements; however, it correlates with a favourable enthalpy of mixing that may hamper the formation of a randomly ordered crystal. Although these insights may be used to narrow the field of candidate materials, the complementary development of experimental and theoretical models capable of identifying relevant compositions remains important.

引用次数: 0

Grand canonical view on electrochemical energetics at applied potential in a nutshell

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry

Pub Date : 2025-02-07 DOI: 10.1016/j.coelec.2025.101656

Nicolas G. Hörmann

In this review, I summarize the foundations and motivation of modern grand canonical descriptions of electrified interfaces, which represent a thermodynamically consistent framework for assessing electronically adiabatic energetics and kinetics as a function of the applied electrode potential. The discussion will center around the ubiquitous coupled proton-electron transfer process at electrified metal-water interfaces and highlight the conceptual differences to the classical understanding and viewpoint. Finally, I present a range of important recent insights about the energetics of protons along their (adiabatic) adsorption path.

引用次数: 0

Mass transport and heterogeneous electron transfer in high-concentration electrolytes: From conventional to two-dimensional material electrodes

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry

Pub Date : 2025-02-07 DOI: 10.1016/j.coelec.2025.101667

Shuai Liu , Guilhem Pignol , Corinne Lagrost , Bingwei Mao , Philippe Hapiot , Jiawei Yan

Two-dimensional materials in high-concentration electrolytes have emerged as promising candidates for studying heterogeneous electron transfer kinetics due to their diverse applications in energy storage and conversion. However, the existing theoretical frameworks and experimental techniques often fall short in accurately describing these complex systems. A comprehensive understanding of electron transfer processes at the electrode–electrolyte interface in high-concentration electrolytes is crucial for advancing our knowledge of interfacial electrochemical phenomena and refining theoretical models. This review summarizes recent efforts focusing on the heterogeneous electron transfer at the electrode–high-concentration electrolyte interfaces, particularly ionic liquids and deep eutectic solvents, and we briefly assess the limitations of existing kinetic studies and outline potential avenues with emphasizing the strengthen of scanning electrochemical microscopy in future research in this field.

{"title":"Mass transport and heterogeneous electron transfer in high-concentration electrolytes: From conventional to two-dimensional material electrodes","authors":"Shuai Liu , Guilhem Pignol , Corinne Lagrost , Bingwei Mao , Philippe Hapiot , Jiawei Yan","doi":"10.1016/j.coelec.2025.101667","DOIUrl":"10.1016/j.coelec.2025.101667","url":null,"abstract":"<div><div>Two-dimensional materials in high-concentration electrolytes have emerged as promising candidates for studying heterogeneous electron transfer kinetics due to their diverse applications in energy storage and conversion. However, the existing theoretical frameworks and experimental techniques often fall short in accurately describing these complex systems. A comprehensive understanding of electron transfer processes at the electrode–electrolyte interface in high-concentration electrolytes is crucial for advancing our knowledge of interfacial electrochemical phenomena and refining theoretical models. This review summarizes recent efforts focusing on the heterogeneous electron transfer at the electrode–high-concentration electrolyte interfaces, particularly ionic liquids and deep eutectic solvents, and we briefly assess the limitations of existing kinetic studies and outline potential avenues with emphasizing the strengthen of scanning electrochemical microscopy in future research in this field.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"51 ","pages":"Article 101667"},"PeriodicalIF":7.9,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in CO2 reduction on bulk and two-dimensional electrocatalysts: From first principles to experimental outcomes

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry

Pub Date : 2025-02-06 DOI: 10.1016/j.coelec.2025.101668

Raghavendra Rajagopalan , Shivam Chaturvedi , Neeru Chaudhary , Abhijit Gogoi , Tej S. Choksi , Ananth Govind Rajan

Designing catalyst materials for the electrochemical carbon dioxide reduction reaction (CO₂RR) requires an understanding of the underlying thermodynamics and kinetics. In this review, we discuss the characteristics of two-dimensional (2D) and bulk materials, which distinguish their catalytic properties. We map catalyst performance in the faradaic efficiency–applied potential space for various hydrocarbons and oxygenates on these catalyst classes. We explain different approaches for modeling catalytic CO₂RR, such as the computational hydrogen electrode, grand canonical (GC) potential kinetics, and GC density functional theory, with the lattermost accurately capturing potential-dependent kinetics. We review recent attempts made to break scaling relationships between intermediate adsorption energies and describe unique features found in 2D materials. Finally, we compare kinetics on both material classes using microkinetic modeling. We conclude that future studies should focus on realistic simulations of the electrode–electrolyte interface and combining the favorable properties of 2D and bulk materials to engineer high-performance CO₂RR catalysts.

{"title":"Advances in CO2 reduction on bulk and two-dimensional electrocatalysts: From first principles to experimental outcomes","authors":"Raghavendra Rajagopalan , Shivam Chaturvedi , Neeru Chaudhary , Abhijit Gogoi , Tej S. Choksi , Ananth Govind Rajan","doi":"10.1016/j.coelec.2025.101668","DOIUrl":"10.1016/j.coelec.2025.101668","url":null,"abstract":"<div><div>Designing catalyst materials for the electrochemical carbon dioxide reduction reaction (CO<sub>2</sub>RR) requires an understanding of the underlying thermodynamics and kinetics. In this review, we discuss the characteristics of two-dimensional (2D) and bulk materials, which distinguish their catalytic properties. We map catalyst performance in the faradaic efficiency–applied potential space for various hydrocarbons and oxygenates on these catalyst classes. We explain different approaches for modeling catalytic CO<sub>2</sub>RR, such as the computational hydrogen electrode, grand canonical (GC) potential kinetics, and GC density functional theory, with the lattermost accurately capturing potential-dependent kinetics. We review recent attempts made to break scaling relationships between intermediate adsorption energies and describe unique features found in 2D materials. Finally, we compare kinetics on both material classes using microkinetic modeling. We conclude that future studies should focus on realistic simulations of the electrode–electrolyte interface and combining the favorable properties of 2D and bulk materials to engineer high-performance CO<sub>2</sub>RR catalysts.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"51 ","pages":"Article 101668"},"PeriodicalIF":7.9,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interdigitated microband electrode arrays in paired organic electrosyntheses: Sustainability and practicality 成对有机电合成中的交织微带电极阵列：可持续性和实用性

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry

Pub Date : 2025-02-04 DOI: 10.1016/j.coelec.2025.101664

Tingran Liu, Taku Suzuki-Osborne, James E. Taylor, Frank Marken

Electrochemical synthesis is well established for production of bulk commodities such as copper, aluminium, or ethylene oxide, but electrosynthesis could play an increasingly important role also in a broader range of organic and pharmaceutical syntheses. Electrochemical transformations linked to renewable electricity offer a low-carbon low-waste alternative to traditional chemical reactions (sustainability), although more work is needed to establish processes and reactor technology for easy implementation (practicality). Here, the application of interdigitated microband array electrodes (in conjunction with computational methods) is discussed/contrasted as a tool to (i) avoid the use of added supporting electrolyte, (ii) achieve anode–cathode process pairing, and (iii) allow very simple reactor technology to be introduced compatible with existing chemical reactionware.

引用次数: 0

Editorial overview: From fundamental insights to inspiration for clean and sustainable biotechnology

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry

Pub Date : 2025-02-03 DOI: 10.1016/j.coelec.2025.101669

Julea N. Butt

引用次数: 0

下一页尾页

类型

全部化学•材料生命科学医学物理工程技术环境•农林材料科学地球科学法学管理学化学环境科学与生态学计算机科学教育学经济学农林科学人文科学生物学数学物理与天体物理心理学综合性期刊其他工业工程理学历史学农学文学信息工程

数据库

全部 ACS Publications Elsevier ieeexplore Springer The Royal Society of Chemistry Wiley

期刊

Current Opinion in Electrochemistry

全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.

﹀