Chemistry - A European Journal最新文献_第3页

Recent Developments in Heterogeneous Catalyzed Epoxidation of Ethylene to Ethylene Oxide. 乙烯非均相催化环氧化制环氧乙烷的研究进展。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-04-09 DOI: 10.1002/chem.202404773

Hongling Yang, Ganggang Li, Wei Ma, Boyi Hao, Zhongshen Zhang, Yongchun Liu, Zhengping Hao

{"title":"Recent Developments in Heterogeneous Catalyzed Epoxidation of Ethylene to Ethylene Oxide.","authors":"Hongling Yang, Ganggang Li, Wei Ma, Boyi Hao, Zhongshen Zhang, Yongchun Liu, Zhengping Hao","doi":"10.1002/chem.202404773","DOIUrl":"https://doi.org/10.1002/chem.202404773","url":null,"abstract":"Epoxidation of ethylene to produce ethylene oxide (EO) is a vital heterogeneous catalytic chemical process in industry, as EO is an important intermediate for the synthesis of fine chemicals including ethylene glycol, ethoxylates, plastics and polyester. EO is commercially produced by the silver-catalyzed partial oxidation of ethylene with air or oxygen. However, it remains challenging to understand its chemical behavior under reaction conditions. To overcome this challenge, a series of catalysts with well-defined structures have been developed. The present review is devoted to summarizing the recent advances in the exploitation of novel catalytic materials for the epoxidation of ethylene, such as metal nanoparticles, clusters, single atoms, and bimetal. The role of promoters in selectivity enhancement will be discussed. A deep understanding of the active species, oxygen species, active structures, activity-structure relationship, and mechanisms contributing to epoxidation process are highlighted. The integration with other advanced technologies such as electrocatalytic and photocatalytic is also reviewed. Finally, the current challenges and future prospects are provided so as to give guidance for the design of efficient catalysts for heterogeneous epoxidation of ethylene to EO, and to improve the fundamental understanding of the underlying catalytic chemistry.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202404773"},"PeriodicalIF":3.9,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143810301","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

Should I stay or should I flow? An exploration of phase-separated metallosupramolecular liquid crystal polymers. 我应该留下还是离开？相分离金属超分子液晶聚合物的研究。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-04-08 DOI: 10.1002/chem.202404672

Charlie A Lindberg, Alice E Roberson, Elina Ghimire, Jerald E Hertzog, Nicholas R Boynton, Guancen Liu, Deborah K Schneiderman, Shrayesh N Patel, Stuart J Rowan

{"title":"Should I stay or should I flow? An exploration of phase-separated metallosupramolecular liquid crystal polymers.","authors":"Charlie A Lindberg, Alice E Roberson, Elina Ghimire, Jerald E Hertzog, Nicholas R Boynton, Guancen Liu, Deborah K Schneiderman, Shrayesh N Patel, Stuart J Rowan","doi":"10.1002/chem.202404672","DOIUrl":"https://doi.org/10.1002/chem.202404672","url":null,"abstract":"Dynamic liquid crystalline polymers (dLCPs) incorporate both liquid crystalline mesogens and dynamic bonds into a single polymeric material. These dual functionalities impart order-dependent thermo-responsive mechano-optical properties and enhanced reprocessability/programmability enabling their use as soft actuators, adaptive adhesives, and damping materials. While many previous works studying dynamic LCPs utilize dynamic covalent bonds, metallosupramolecular bonds provide a modular platform where a series of materials can be accessed from a single polymeric feedstock through the variation of the metal ion used. A series of dLCPs were prepared by the addition of metal salts to a telechelic 2,6-bisbenzimidazolylpyridine (Bip) ligand endcapped LCP to form metallosupramolecular liquid crystal polymers (MSLCPs). The resulting MSLCPs were found to phase separate into hard and soft phases which aids in their mechanical robustness. Variations of the metal salts used to access these materials allowed for control of the thermomechanical, viscoelastic, and adhesive properties with relaxations that can be tailored independently of the mesogenic transition. This work demonstrates that by accessing phase separation through the incorporation of metallosupramolecular moieties, highly processable yet robust MSLCP materials can be realized. This class of materials opens the door to LCPs with bulk flow behavior that can also be utilized as multi-level adhesives.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202404672"},"PeriodicalIF":3.9,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143810321","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

Bimetallic Cu-Ni Catalysts derived from Phyllosilicates for Synergistically Catalyzing CO2 and CH4 Dry Reforming. 层状硅酸盐制备的Cu-Ni双金属催化剂协同催化CO2和CH4干重整。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-04-08 DOI: 10.1002/chem.202500847

Chongchong Chen, Wenbo Wang, Xusheng Wang, Ling Lin, Qiuhe Ren, Runping Ye

{"title":"Bimetallic Cu-Ni Catalysts derived from Phyllosilicates for Synergistically Catalyzing CO2 and CH4 Dry Reforming.","authors":"Chongchong Chen, Wenbo Wang, Xusheng Wang, Ling Lin, Qiuhe Ren, Runping Ye","doi":"10.1002/chem.202500847","DOIUrl":"https://doi.org/10.1002/chem.202500847","url":null,"abstract":"Methane dry reforming reaction offers an attractive route to simultaneously convert two kinds of greenhouse gases into clean fuels and high valuable chemicals. Nevertheless, the inactivation of nickel-based catalysts due to sintering and coking in dry reforming has severely limited its industrial application. In this study, we proposed a step-by-step strategy to prepare a series of bimetallic xCu-Ni/SiO2 catalysts derived from phyllosilicate precursors. The optimized catalyst shows exceptional performance, with no deactivation during the 50-hour stability test, and the CH4 and CO2 conversion were 88.8% and 94.0%, respectively. This was attributed to the synergistic catalysis of Cu-Ni alloy, effectively inhibits coke formation. Additionally, the distribution of copper species between nickel species inhibited the mobility and enlargement of nickel particles and thus enhanced the resistance to sintering. The preparation strategy offers valuable insights for designing and preparing of highly efficient and stable bimetallic catalysts under high-temperature conditions.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202500847"},"PeriodicalIF":3.9,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802054","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

Intramolecular Electron Exchange Induced Oxygenation of Aldimine Functions of N,N'-bis(pyridin-2-ylmethylene)naphthyl-1,5-diimine in Isomeric Diruthenium Frameworks. 分子内电子交换诱导N，N'-双（吡啶-2-基亚甲基）萘-1,5-二亚胺在二钌异构体框架中醛胺功能的氧合。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-04-08 DOI: 10.1002/chem.202501052

Goutam Kumar Lahiri, Mitrali Biswas, Sanchaita Dey, Sanjib Panda

{"title":"Intramolecular Electron Exchange Induced Oxygenation of Aldimine Functions of N,N'-bis(pyridin-2-ylmethylene)naphthyl-1,5-diimine in Isomeric Diruthenium Frameworks.","authors":"Goutam Kumar Lahiri, Mitrali Biswas, Sanchaita Dey, Sanjib Panda","doi":"10.1002/chem.202501052","DOIUrl":"https://doi.org/10.1002/chem.202501052","url":null,"abstract":"The article describes stepwise oxygenation of the aldimine functions at the backbone of N,N'-bis(pyridin-2-ylmethylene)naphthyl-1,5-diimine (L) in non-interconvertible L-bridged isomeric diruthenium(II)-acac complexes [{RuII(acac)2}2(µ-L)] (cis-1a/trans-1b, acac=acetylacetonate, DFT calculated DEcis-trans = 440 cm-1) via dioxygen activation.. It leads to the formation of the corresponding carboxamido bridged [{RuIII(acac)2}2(µ-Ld2-)] (cis-1ad/ trans-1bd; d denotes doubly-oxygenation) with the concomitant metal oxidation. However, L in doubly oxidized (RuIIIRuIII) congeners i.e. [{RuIII(acac)2}2(µ-L)](ClO4)2 (cis-[1a](ClO4)2/trans-[1b](ClO4)2) as well as electron poor metal fragments derived [{RuII(bpy)2}2(µ-L)]4+ [2](ClO4)4 (bpy=2,2'-bipyridine) and [{RuII(PPh3)2(CO)(H)}2(µ-L)]2+ [3](ClO4)2 failed to undergo the aforestated oxygenation process on purging O2 even at elevated temperature due to the absence of necessary electron exchange between ruthenium and L (i.e. RuII-L-RuII«RuIII-L·--RuII) to initiate the oxygen activation step. Besides structural and spectroscopic characterization of the complexes, oxygenation processes were further monitored through electrochemical, EPR and kinetic experiments in conjunction with DFT calculations, which highlighted mechanistic insights into the reaction sequence.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202501052"},"PeriodicalIF":3.9,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143810284","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

Modular Synthesis of Arylpyridylmethylamines via Visible-Light-Driven Reductive Coupling of Amines, Aldehydes and Pyridines. 胺、醛和吡啶的可见光还原偶联模块化合成芳基吡啶基甲胺。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-04-08 DOI: 10.1002/chem.202500622

Yuyan Xiong, Haoxiang Zhang, Fengqing Huang, Yuan Xi, Ye Wu, Huimin Dong, Jie Guan, Wenying Yu, Minyan Wang, Bo Zhang

{"title":"Modular Synthesis of Arylpyridylmethylamines via Visible-Light-Driven Reductive Coupling of Amines, Aldehydes and Pyridines.","authors":"Yuyan Xiong, Haoxiang Zhang, Fengqing Huang, Yuan Xi, Ye Wu, Huimin Dong, Jie Guan, Wenying Yu, Minyan Wang, Bo Zhang","doi":"10.1002/chem.202500622","DOIUrl":"https://doi.org/10.1002/chem.202500622","url":null,"abstract":"The arylpyridylmethylamine motif is a privileged scaffold in drug discovery. However, rapidly creating these valuable molecules with structural diversity by directly leveraging readily available, yet simple chemical feedstocks remains a challenge. Herein, we describe a versatile and modular photochemical method for the straightforward construction of arylpyridylmethylamine skeleton utilizing widely accessible starting materials, including amines, aldehydes, and pyridines. This multicomponent coupling proceeds under very mild conditions without the need for any transition-metal catalysts, photocatalysts, and acid additives and displays a broad substrate scope and excellent functional-group tolerance. The potential utility of this methodology in pharmaceutical development is demonstrated through late-stage modification of pharmaceutically relevant compounds, concise synthesis of bioactive compounds, and rapid construction of pyridyl analogue of drug molecules. Combined experimental and computational studies unveiled that this reaction proceeds through radical-radical cross-coupling between persistent pyridylphosphonium radicals and α-amino radicals.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202500622"},"PeriodicalIF":3.9,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802085","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

Chemical Evolution of Early Macromolecules: From Prebiotic Oligopeptides to Self-Organizing Biosystems via Amyloid Formation. 早期大分子的化学进化：从益生元寡肽到淀粉样蛋白形成的自组织生物系统。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-04-08 DOI: 10.1002/chem.202404669

Fruzsina Bencs, Nóra Taricska, Zsolt Dürvanger, Dániel Horváth, Zsolt Fazekas, Vince Grolmusz, Viktor Farkas, András Perczel

{"title":"Chemical Evolution of Early Macromolecules: From Prebiotic Oligopeptides to Self-Organizing Biosystems via Amyloid Formation.","authors":"Fruzsina Bencs, Nóra Taricska, Zsolt Dürvanger, Dániel Horváth, Zsolt Fazekas, Vince Grolmusz, Viktor Farkas, András Perczel","doi":"10.1002/chem.202404669","DOIUrl":"https://doi.org/10.1002/chem.202404669","url":null,"abstract":"Short amyloidogenic oligopeptides (APRs) are proposed as early macromolecules capable of forming solvent-separated nanosystems under prebiotic conditions. This study provides experimental evidence that APRs, such as the aggregation-prone oligopeptide A (APR-A), can undergo mutational transitions to form distinct variants, and convert to APR-B, either amyloid-like or water-soluble and non-aggregating. These transitions occur along a spectrum from strongly amyloidogenic (pro-amyloid) to weakly amyloidogenic (anti-amyloid), with the mutation sequence order playing a key role in determining their physicochemical properties. The pro-amyloid pathway facilitates heterogeneous phase separation, leading to amyloid-crystal formation with multiple polymorphs, including the first class 3 amyloid topology. By mapping these transitions, we demonstrate the potential co-evolution of water-soluble miniproteins and insoluble amyloids, both of which could have been pivotal in early bio-nanosystem formation. These insights into amyloid modulation provide a crucial step toward understanding amyloid control mechanisms.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202404669"},"PeriodicalIF":3.9,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802058","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

Chemical Protein Engineering: Backbone Cyclization Rescues Folding of a 183-Residue Truncated Domain of Malaria Parasite Protein PfAMA1. 化学蛋白工程：主链环化修复了疟原虫蛋白PfAMA1 183残基截断结构域的折叠。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-04-08 DOI: 10.1002/chem.202500894

Jamsad Mannuthodikayil, Vishal Malik, Abhisek Kar, Sameer Singh, Kalyaneswar Mandal

{"title":"Chemical Protein Engineering: Backbone Cyclization Rescues Folding of a 183-Residue Truncated Domain of Malaria Parasite Protein PfAMA1.","authors":"Jamsad Mannuthodikayil, Vishal Malik, Abhisek Kar, Sameer Singh, Kalyaneswar Mandal","doi":"10.1002/chem.202500894","DOIUrl":"https://doi.org/10.1002/chem.202500894","url":null,"abstract":"The interaction between apical membrane antigen 1 (PfAMA1) and rhoptry neck protein 2 (PfRON2) is crucial for Plasmodium falciparum red blood cell invasion, making it a key target for anti-malarial drug development strategies. Here, we report the chemical synthesis of PfAMA1 domain-I (PfAMA1-DI) in both linear and backbone-circularized forms, employing a six-segment convergent synthesis approach exploiting one-pot chemistries and solubilizing tags. The chemically synthesized linear PfAMA1-DI construct exhibited incomplete disulfide bond formation during folding, likely due to increased terminal flexibility in the absence of domain-II. To address this, we employed backbone cyclization of the large 180-residue polypeptide chain, with 3-residue linker sequence, as a unique strategy to conformationally restrict its termini and facilitate correct disulfide bond formation. Introducing a multipurpose affinity and solubility tag to the cyclicPfAMA1-DI construct further improved the folding yield by mitigating aggregation. The predicted structure using ColabFold-Alphafold2 indicated that PfRON2 ligand binds within the hydrophobic groove of the cyclicPfAMA1-DI construct similar to the native interactions. These findings underscore the potential of large protein backbone cyclization to stabilize protein structure, offering a compelling strategy for the chemical synthesis of otherwise unstable protein domains with broad applications in miniature protein engineering.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202500894"},"PeriodicalIF":3.9,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802060","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

S-Heterocyclic s-Indacenodifluorene: Synthesis, Properties and Thermally Tunable Ambipolar Field-Effect Mobility. s-杂环s-吲哚二芴：合成、性质和热可调双极性场效应迁移率。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-04-08 DOI: 10.1002/chem.202500725

Sakshi Sahewal, Subhashis Ghosh, Prabhanjan Pradhan, Priyank Kumar Sharma, Md Saifuddin, Biplab K Patra, Satyaprasad P Senanayak, Soumyajit Das

{"title":"S-Heterocyclic s-Indacenodifluorene: Synthesis, Properties and Thermally Tunable Ambipolar Field-Effect Mobility.","authors":"Sakshi Sahewal, Subhashis Ghosh, Prabhanjan Pradhan, Priyank Kumar Sharma, Md Saifuddin, Biplab K Patra, Satyaprasad P Senanayak, Soumyajit Das","doi":"10.1002/chem.202500725","DOIUrl":"https://doi.org/10.1002/chem.202500725","url":null,"abstract":"Design of semiconducting materials with facile control of charge transport and the nature of charge carriers is essential for realizing niche applications with organic electronics. Described herein are the synthesis, crystal structure, and analysis of the electronic properties of a four-stage redox amphoteric S-heterocyclic s-indacenodifluorene 6, including the study of its ambipolar charge carrier mobility (μh and μe) in organic field-effect transistor (OFET) devices. Despite being electron-rich, our investigation revealed reversible reduction potentials for 6 in the cyclic voltammetry, which is attributed to the recovery of locally aromatic thiophene and cyclopentadienyl anion units upon electron injection for the two antiaromatic S-heterocyclic as-indacene units in accordance to the Glidewell-Lloyd rule of aromaticity. In line with this, we observed an interesting thermal tunability of the nature of charge carriers from p-type to balanced ambipolar to n-type charge transport with reasonable semiconductor mobility in all regimes of transport. This behaviour is correlated with the modification of the transport levels upon annealing of the semiconductor and possible increase in the extent of π-electron delocalization with temperature. This proof-of-concept tunability of the nature of charge transport indicates the efficacy of our molecular design.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202500725"},"PeriodicalIF":3.9,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802118","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

High-Valent Nickel Complexes Supported by a Functionalized PC(sp3)P Pincer Ligand: Properties and Catalysis. 官能化PC(sp3)P钳形配体负载的高价镍配合物：性质和催化作用。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-04-08 DOI: 10.1002/chem.202500618

Nandita Biswas, Rajarshi Mondal, Kamal Uddin Ansari, Roaa Yaseen, Richard Lord, Stanislav Groysman, Daphna Shimon, Dmitri Gelman

引用次数: 0

Efficiently Electrocatalytic Overall Water Splitting over Ni0.85Se-Ni Foam Electrode Modified with Nanoneedle-Like Ni3Fe alloy. 纳米针状Ni3Fe合金修饰Ni0.85Se-Ni泡沫电极上高效电催化整体水分解

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-04-08 DOI: 10.1002/chem.202500632

Yang Lu, Yanyan Sun, Liuen Wang, Shuying Wang, Yingjiu Zhang

{"title":"Efficiently Electrocatalytic Overall Water Splitting over Ni0.85Se-Ni Foam Electrode Modified with Nanoneedle-Like Ni3Fe alloy.","authors":"Yang Lu, Yanyan Sun, Liuen Wang, Shuying Wang, Yingjiu Zhang","doi":"10.1002/chem.202500632","DOIUrl":"https://doi.org/10.1002/chem.202500632","url":null,"abstract":"Electrocatalytic splitting of H2O into H2 and O2 is one of the potential ways to develop clean and storable energy. In this study, the self-supporting Ni0.85Se-Ni foam (Ni0.85Se-NF) hybrid electrode was modified with Ni3Fe (Ni3Fe/Ni0.85Se-NF) via facile selenization and electrochemical deposition method. The Ni3Fe/Ni0.85Se-NF hybrid electrode exhibited excellent performance of electrocatalytic overall water splitting in an alkaline solution (1 M KOH, pH = 13.9), which is much more active than the individual Ni0.85Se-NF and Ni3Fe/NF. In particular, the Ni3Fe/Ni0.85Se-NF hybrid electrode generated 10 mA cm-2 cathodic current at an overpotential of 81 mV, and 10 mA cm-2 anodic current at an overpotential of 209 mV in KOH solution (1 M, pH = 13.9), respectively. In addition, only 1.68 V potential was required to generate 12 mA cm-2 current in a two-electrode system for overall water splitting in an alkaline aqueous solution using the Ni3Fe/Ni0.85Se-NF working as the anode and cathode, respectively. The TEM images and Raman spectra results indicated that the microstructure reconstruction happened on the surface of the Ni3Fe/Ni0.85Se-NF electrode after the HER or OER test. Some Ni and Fe species were found to convert to the NixFe1-xOOH during water electrocatalysis.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202500632"},"PeriodicalIF":3.9,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143810281","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