{"title":"Electrochemical fingerprints of the electronic band structure of two-dimensional materials","authors":"Matěj Velický","doi":"10.1016/j.coelec.2025.101650","DOIUrl":"10.1016/j.coelec.2025.101650","url":null,"abstract":"<div><div>Two-dimensional (2D) materials and their unique tunable properties have captivated scientists for two decades. Electrochemistry is a mature research field that has succeeded in tackling many of the modern scientific topics. The convergence of these two scientific disciplines has crystallized into a unique interdisciplinary field with rewarding outcomes. The topics covered by the electrochemistry of 2D materials include examination of the electrocatalytic activity at different surfaces, electrochemical tunneling through 2D layers, and charge carrier density modulation by electrolyte gating. Most recently, the prospect of observing electrochemical effects arising from the features of the electronic band structure has driven much of the research on the spectroelectrochemistry of 2D semiconductors, dual-gate control over the electrochemical reactions, and electrochemistry of moiré heterostructures. Although the investigation of these electrochemical fingerprints of the electronic band structure faces challenges related to involved sample fabrication, advanced instrumentation, and intellectual stumbling blocks, it has already unveiled the enormous potential worthy of future research efforts.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"50 ","pages":"Article 101650"},"PeriodicalIF":7.9,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436692","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}
{"title":"Isolated proteins in biohybrid photovoltaics: Where do we go from here?","authors":"Nahush Modak, Vincent M. Friebe, Rafał Białek","doi":"10.1016/j.coelec.2025.101647","DOIUrl":"10.1016/j.coelec.2025.101647","url":null,"abstract":"<div><div>Biohybrid photovoltaics, which harness photosynthetic proteins such as reaction centers to convert light into electricity, have progressed significantly over the years. Recent efforts have focused on a deeper understanding of the underlying operational mechanisms and identifying key limitations and bottlenecks, leading to revealing poor wiring as a primary factor limiting efficiency and guiding strategies for improvement. However, despite these insights, experimental advances have only led to incremental progress, leaving critical issues unresolved and raising doubts about the viability of biohybrid photovoltaics for large-scale energy production. This ongoing performance gap highlights the need for a breakthrough to move the field forward. Nonetheless, the knowledge gained is crucial for future innovations, particularly in developing more stable, complex systems such as living-cell-based devices. Additionally, these findings suggest that biohybrid systems may be better suited for specialized applications like biosensing or driving high-value chemical production, where their unique properties can be more effectively utilized.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"50 ","pages":"Article 101647"},"PeriodicalIF":7.9,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143310434","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}
Philip N. Bartlett , Victoria K. Greenacre , Cornelis H. de Groot , Yasir J. Noori , Gillian Reid , Shibin Thomas
{"title":"Opportunities and challenges in the application of electrodeposition to few-layer transition metal dichalcogenide electronic device fabrication","authors":"Philip N. Bartlett , Victoria K. Greenacre , Cornelis H. de Groot , Yasir J. Noori , Gillian Reid , Shibin Thomas","doi":"10.1016/j.coelec.2025.101651","DOIUrl":"10.1016/j.coelec.2025.101651","url":null,"abstract":"<div><div>Few-layer transition metal dichalcogenides (TMDCs) are currently a hot topic in electrochemistry with a focus on their applications in electrocatalysis, energy conversion and storage, and sensors because of their high surface areas and unique properties. At the same time there is even greater interest in the field of electronics for the applications of few layer TMDCs in nanoelectronic devices including field effect transistors, memristors, photodetectors, and flexible electronics. Here we highlight the significant opportunities and challenges in the practically unexplored use of electrodeposition and electrochemical processes for the fabrication of TMDC based electronic devices.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"50 ","pages":"Article 101651"},"PeriodicalIF":7.9,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158170","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}
{"title":"Machine learning in electrocatalysis–Living up to the hype?","authors":"Árni Björn Höskuldsson","doi":"10.1016/j.coelec.2025.101649","DOIUrl":"10.1016/j.coelec.2025.101649","url":null,"abstract":"<div><div>The introduction of machine learning (ML) models in materials science is seen as a paradigm shift in the field. These models enable the thorough exploration of vast material spaces previously deemed beyond the reach of computational studies, thereby accelerating the materials discovery process. In theoretical electrocatalysis, ML models are primarily used as surrogates for, or to complement, more costly <em>ab initio</em> simulations to predict material properties. Herein, the effects ML has had on the field of electrocatalysis are critically reviewed, with particular focus on the degree to which actual progress has resulted from its application. Although the effectiveness of ML in exploring vast material classes is undeniable, the irrational belief in its potential has led to its excessive utilization within the field.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"50 ","pages":"Article 101649"},"PeriodicalIF":7.9,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158666","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}
Yixiao Zhang , Qingdian Liao , Elena L. Gubanova , Aliaksandr S. Bandarenka
{"title":"Relationships among structure, composition, and selectivity in the electrocatalytic reduction of nitrate ions","authors":"Yixiao Zhang , Qingdian Liao , Elena L. Gubanova , Aliaksandr S. Bandarenka","doi":"10.1016/j.coelec.2025.101643","DOIUrl":"10.1016/j.coelec.2025.101643","url":null,"abstract":"<div><div>Electrochemical nitrate reduction reaction (NO₃RR) is crucial in converting wastewater nitrate sources into value-added products under mild, low-cost conditions. Metals with highly occupied d-orbitals, such as Au, Ag, Cu, and Pt, are promising materials for high-performance electrocatalytic NO<sub>3</sub><sup>-</sup> reduction due to their favorable surface electronic properties. While many metals are effective catalysts for NO₃RR, their limited ability to favor specific products often hinders practical application. This short review analyzes recent understanding of the reaction mechanisms and pathways of NO₃RR, focusing on the structural and electronic effects of the catalysts such as underpotential deposition systems and single-atom catalysts on product selectivity.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"50 ","pages":"Article 101643"},"PeriodicalIF":7.9,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143348011","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}
{"title":"Sustainable development of electrochemical water treatment: Innovations in materials, processes, and resource recovery","authors":"Javier Llanos, Ignasi Sirés","doi":"10.1016/j.coelec.2025.101646","DOIUrl":"10.1016/j.coelec.2025.101646","url":null,"abstract":"","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"50 ","pages":"Article 101646"},"PeriodicalIF":7.9,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158167","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}
Awais Ali , Sheraz Ahmed , Wei Jiang , Gyungse Park , Soong Ju Oh
{"title":"Harnessing MOF intrinsic properties for enhanced supercapacitor performance","authors":"Awais Ali , Sheraz Ahmed , Wei Jiang , Gyungse Park , Soong Ju Oh","doi":"10.1016/j.coelec.2024.101640","DOIUrl":"10.1016/j.coelec.2024.101640","url":null,"abstract":"<div><div>The necessity to maximize the efficiency of energy storage systems has spurred researchers to pursue novel materials with innate characteristics that enhance energy and power outputs. Researchers have recently focused on metal–organic frameworks (MOFs) as potential materials because of their desirable properties, which include large surface areas that maximize electroactive sites, fast ion transport, ultrahigh porosity, and rich redox metal centers. The design and manufacture of these electrode materials dictate MOFs’ architecture and morphology (microstructure or nanostructure), which determines their electrochemical performance. This review illustrates the recent results from the previous findings on the application of MOFs as a material with unique storage abilities and insights in supercapacitors.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"50 ","pages":"Article 101640"},"PeriodicalIF":7.9,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158166","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}
Thiago Bertaglia , Tilmann J. Neubert , Rodrigo M. Iost , Kannan Balasubramanian , Frank N. Crespilho
{"title":"Consequences of edge and substrate modifications on graphene electrochemistry","authors":"Thiago Bertaglia , Tilmann J. Neubert , Rodrigo M. Iost , Kannan Balasubramanian , Frank N. Crespilho","doi":"10.1016/j.coelec.2024.101641","DOIUrl":"10.1016/j.coelec.2024.101641","url":null,"abstract":"<div><div>The electrochemistry of graphene is dictated by its structural inhomogeneities, including defects, edges, and substrate interactions, along with its unique electronic properties. In this current opinion, we analyze how graphene's structural features influence its heterogeneous electron transfer (HET) kinetics. Graphene's low density of states (DOS) introduces quantum capacitance effects that dominate interfacial charge transfer near the charge neutrality point. Defects, such as vacancies and oxidized regions, create localized states that enhance HET rates, while excessive defects reduce conductivity. Graphene edges, show superior HET performance compared to the basal plane. Encapsulation techniques, such as hexagonal boron nitride, enable precise isolation of graphene edges, minimizing capacitive interference. Substrate engineering, including metallic hybridization and twisted bilayer graphene, further modulates graphene's electronic properties. These insights feature graphene's potential in biosensing, energy storage, and catalysis, while highlighting the need for precise defect control and substrate optimization to advance graphene-based electrochemical devices.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"50 ","pages":"Article 101641"},"PeriodicalIF":7.9,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158191","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}
Arup Ghorai , Aby Alex , Shashi Priya Balmuchu , Susanta Banerjee , Soumyadip Choudhury
{"title":"Polymer-based ionic liquids in lithium batteries","authors":"Arup Ghorai , Aby Alex , Shashi Priya Balmuchu , Susanta Banerjee , Soumyadip Choudhury","doi":"10.1016/j.coelec.2024.101639","DOIUrl":"10.1016/j.coelec.2024.101639","url":null,"abstract":"<div><div>Ionic liquids (ILs) offer advantages like low volatility, high stability, and conductivity, making them valuable in Li-ion and lithium-sulfur (Li–S) batteries compared to volatile organic solvents-based electrolytes and other green solvents such as deep eutectic solvents. ILs are propitious in Li–S batteries for reducing polysulfide solubility and preventing dendrite growth, but are hygroscopic, costly, and liquid in nature. Ionic liquids with polymerizable functionalities, such as vinyl groups, may undergo polymerization, thus resulting in a polymerized ionic liquid (PIL), which can be cast as film to serve as a separator loaded with lithium salts. The temperature dependence on ionic conductivity of PILs considering relaxation and segmental motion of the polymer chains are discussed with the help of mathematical expressions. Such PILs have significantly low moisture absorption, low or no flammability, and are castable as films, making them promising candidates for next-generation lithium battery electrolytes.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"50 ","pages":"Article 101639"},"PeriodicalIF":7.9,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158171","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}