Inorganic Chemistry Frontiers最新文献_第4页

Advances in nanoengineering of cathodes for next-generation solid oxide fuel cells 下一代固体氧化物燃料电池阴极纳米工程的进展

IF 7 1区化学

Inorganic Chemistry Frontiers Pub Date : 2024-10-30 DOI: 10.1039/d4qi02451f

Chunwen Sun

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The „chemical tug-of-war” in carborane clusters: distinct tuning on different sides of the cluster 碳硼烷团簇中的 "化学拉锯战"：团簇不同侧面的不同调谐

IF 7 1区化学

Inorganic Chemistry Frontiers Pub Date : 2024-10-30 DOI: 10.1039/d4qi02566k

Dalma Gál, Daniel Buzsaki, Balázs Szathmári, Tamas Holczbauer, Antal Udvardy, Júlia Kertész Szilágyiné, Denis Kargin, Clemens Bruhn, Rudolf Pietschnig, Zsolt Kelemen

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Dual effects of Ag+ intercalation boosting kineties and stability of NH4V4O10 cathodes for enhanced zinc ion storage Ag+插层的双重效应提高了 NH4V4O10 阴极的动力学特性和稳定性，从而增强了锌离子储存效果

IF 7 1区化学

Inorganic Chemistry Frontiers Pub Date : 2024-10-30 DOI: 10.1039/d4qi01942c

Zhou Fang, Yi Tong, Yue Yang, Anjun Hu, Jianping Long, Yan Zhao, Xin Lai, Daojiang Gao, Mengjiao Liu

{"title":"Dual effects of Ag+ intercalation boosting kineties and stability of NH4V4O10 cathodes for enhanced zinc ion storage","authors":"Zhou Fang, Yi Tong, Yue Yang, Anjun Hu, Jianping Long, Yan Zhao, Xin Lai, Daojiang Gao, Mengjiao Liu","doi":"10.1039/d4qi01942c","DOIUrl":"https://doi.org/10.1039/d4qi01942c","url":null,"abstract":"Recently, aqueous zinc ion batteries (AZIBs) emerge as novel energy storage devices for their low cost, favorable safety and high theoretical capacity. However, the layered ammonium vanadates, as the promising cathode materials, suffer from the slow Zn2+ diffusion kinetics due to the strong electrostatic interactions between Zn2+ and [VOn] layer, irreversible deammoniation and poor conductivity. In this work, Ag+ intercalated NH4V4O10 (ANVO) was synthesized as high-performance cathodes for AZIBs. The pre-intercalated Ag+ interacts with the lattice oxygen to form strong Ag-O bonds, acting as \"pillar\" to stabilize the layered structure in electrochemical reactions. Moreover, the in-situ generated Ag0 during the discharge process favors enhancement in electronic conductivity of the material. The dual effects of Ag+ intercalation endow the AVNO with high structure stability and fast electron/Zn2+ diffusion kinetics, leading to the superior electrochemical performance. Specially, it exhibits ultralong cycling life (with 95% capacity retention after 1000 cycles at 5 A g–1) as well as competitive rate performance (473.6 mAh g−1 at 0.2 A g−1 and 286.6 mAh g–1 at 10 A g–1). This research provides valuable insights for designing high capacity and long-life cathode materials.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142541365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Highly active and durable NiMoCuCo catalyst with moderated hydroxide adsorption energy for efficient hydrogen evolution reaction 具有缓和氢氧化物吸附能的高活性和耐久性镍钴合金催化剂用于高效氢气进化反应

IF 7 1区化学

Inorganic Chemistry Frontiers Pub Date : 2024-10-29 DOI: 10.1039/d4qi01947d

Hyeonggeun Choi, Seunghwan Jo, Ki Hoon Shin, HeeYoung Lim, Liting Zhang, Keon Beom Lee, Young-Woo Lee, Jung Inn Sohn

{"title":"Highly active and durable NiMoCuCo catalyst with moderated hydroxide adsorption energy for efficient hydrogen evolution reaction","authors":"Hyeonggeun Choi, Seunghwan Jo, Ki Hoon Shin, HeeYoung Lim, Liting Zhang, Keon Beom Lee, Young-Woo Lee, Jung Inn Sohn","doi":"10.1039/d4qi01947d","DOIUrl":"https://doi.org/10.1039/d4qi01947d","url":null,"abstract":"Nonprecious NiMo composites are promising hydrogen evolution reaction electrocatalysts due to their Pt-like catalytic surface. However, because of hydroxide adsorption in alkaline media, the oxidative elution of Mo deteriorates structural and catalytic stability. Herein, Cu and Co incorporated NiMo composite (NiMoCuCo) is prepared as an active and durable hydrogen evolution reaction (HER) electrocatalyst by direct electrochemical deposition. The low electronegativities of Cu and Co effectively reduce the charge valence state of metals and the zeta potential of electrocatalysts, ameliorating the surface electronegativity. NiMoCuCo shows a low overpotential of 53 mV at a current density of 10 mA cm−2 and a slight overpotential increase of 0.01 mV h−1 (1.8 %) after long-term stability test for 100 h at a current density of 100 mA cm−2, outperforming the NiMo and NiMoCu. Ex-situ analyses demonstrate that the NiMoCuCo exhibits a reduced charge valence state of Mo without significant degradation after the long-term stability test. Furthermore, Co in the NiMoCuCo acts as the OH adsorption site on behalf of Mo, owing to the reduced surface electronegativity of Mo and strong OH affinity. This results in the balance between the water dissociation and HER kinetics of NiMo composites, leading to excellent HER activity and stability.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Polar and Tropical Regioisomeric Decanuclear Cuprofullerenes 十核铜富勒烯的极性和热带异构体

IF 7 1区化学

Inorganic Chemistry Frontiers Pub Date : 2024-10-29 DOI: 10.1039/d4qi02261k

Jing-Xuan Sun, Ting-Ting Zou, Yi-Chun Zhang, Yu-Li Liu, Li Dang, Shun-Ze Zhan, Hong Cai, Dan Li

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Chalcogen bond provided supramolecular association of beta-octamolybdate and chalconium cations β-辛钼酸盐和铊阳离子的超分子结合提供了铊原键

IF 7 1区化学

Inorganic Chemistry Frontiers Pub Date : 2024-10-29 DOI: 10.1039/d4qi02258k

Anna A Mukhacheva, Vadim V. Yanshole, Mikhail V. Il’in, Alexander S. Novikov, Dmitrii Bolotin, Maksim Nailyevich Sokolov, Pavel A Abramov

{"title":"Chalcogen bond provided supramolecular association of beta-octamolybdate and chalconium cations","authors":"Anna A Mukhacheva, Vadim V. Yanshole, Mikhail V. Il’in, Alexander S. Novikov, Dmitrii Bolotin, Maksim Nailyevich Sokolov, Pavel A Abramov","doi":"10.1039/d4qi02258k","DOIUrl":"https://doi.org/10.1039/d4qi02258k","url":null,"abstract":"The interactions of triple σ-(QIV)-hole donating chalconium cations ([Q(bPh)R]+, when Q = S, Se, Te) with nucleophilic beta-octamolybdate ([β-Mo8O26]4–) results in supramolecular association. The main focus of such assembling is on σ-(QIV)-holes recognition by the molybdate in cations with a biphenyl aromatic fragment. This leads to a remarkable diversity of the association patterns producing: i) neutral 4:1 {[Q(bPh)R]4[β-Mo8O26]} complexes with cations stacked by π-π interactions; ii) (Bu4N)+, [Q(bPh)R]+ and [β-Mo8O26]4– complexes of 2:2:1 stoichiometry with π-π interactions; iii) (Bu4N)+, [Q(bPh)R]+ and [β-Mo8O26]4– complexes of 2:2:1 stoichiometry without π-π interactions; iv) {[Q(bPh)R]2}2[β-Mo8O26] salts with π-π stacked cations but lacking any (QIV)∙∙∙O interactions. Moreover, interactions in the system can drive the reorganization of [β-Mo8O26]4– into [α-Mo8O26]4–. The halogen-bonded (QIV)∙∙∙O {(Q(bPh)R)x[β-Mo8O26]4–} (x = 2, 4) assemblies, π-π stacked cationic dimers {(Q(bPh)R)2}2+ and complicated associates based on both types interactions have been the subjects of crystallographic and computational studies.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142536573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Multifunctional separator modified with catalytic multishelled structural CoS2 enables stable lithium-sulfur battery 用催化多壳结构 CoS2 修饰的多功能隔膜可实现稳定的锂硫电池

IF 7 1区化学

Inorganic Chemistry Frontiers Pub Date : 2024-10-29 DOI: 10.1039/d4qi02340d

Ruyi Bi, Jilu Zhao, Mei Yang, Jiangyan Wang, Ranbo Yu, Dan Wang

{"title":"Multifunctional separator modified with catalytic multishelled structural CoS2 enables stable lithium-sulfur battery","authors":"Ruyi Bi, Jilu Zhao, Mei Yang, Jiangyan Wang, Ranbo Yu, Dan Wang","doi":"10.1039/d4qi02340d","DOIUrl":"https://doi.org/10.1039/d4qi02340d","url":null,"abstract":"Lithium-sulfur battery has been considered as a promising next-generation energy storage device, due to its ultrahigh theoretical energy density and natural abundance of sulfur. However, the shuttle effect and sluggish redox kinetics of polysulfides hinder its commercial application. Herein, by combing the wise of material design and structure engineering, CoS2 hollow multishelled structure (HoMS) is developed to modify separator and also to establish a “vice electrode”, which effectively hinders shuttle effect and catalyzes the redox reactions. CoS2 HoMS can not only obstruct polysulfides through multiple shell barriers, but also provides a large available polar surface to effectively capture polysulfides. Additionally, CoS2 HoMS with a good conductivity could greatly accelerates the redox conversion of polysulfides and enhances the decomposition of Li2S. Moreover, these CoS2 HoMS can buffer the large volume change of sulfur during cycling and ensure good contact and stability of electrodes. As a result, lithium-sulfur battery with CoS2 HoMS modified separator exhibited a high discharge capacity of 873.1 mAh g−1 at a high rate of 1 C and delivered only 0.054% of capacity decay per cycle during 350 cycles.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Toward highly efficient TADF-active Cu(I), Ag(I) and Au(I) carbene complexes using symmetry-based design strategy 利用基于对称性的设计策略开发高效的 TADF 活性铜(I)、银(I)和金(I)碳烯配合物

IF 7 1区化学

Inorganic Chemistry Frontiers Pub Date : 2024-10-29 DOI: 10.1039/d4qi01996b

Alexander Artem'ev, Maxim Rogovoy, Ilia Odud, Maria Davydova, Marianna I Rakhmanova, Pavel A. Petrov, Valery K Brel, Oleg I. Artyushin, Konstantin Brylev, Denis G. Samsonenko, Alexey S. Berezin, Dmitry Gorbunov, Nina P. Gritsan

{"title":"Toward highly efficient TADF-active Cu(I), Ag(I) and Au(I) carbene complexes using symmetry-based design strategy","authors":"Alexander Artem'ev, Maxim Rogovoy, Ilia Odud, Maria Davydova, Marianna I Rakhmanova, Pavel A. Petrov, Valery K Brel, Oleg I. Artyushin, Konstantin Brylev, Denis G. Samsonenko, Alexey S. Berezin, Dmitry Gorbunov, Nina P. Gritsan","doi":"10.1039/d4qi01996b","DOIUrl":"https://doi.org/10.1039/d4qi01996b","url":null,"abstract":"Coinage metal(I) complexes exhibiting thermally activated delayed fluorescence (TADF) have attracted worldwide attention as emitters for OLEDs. Reducing the decay times and increasing the quantum efficiency of such emitters is the current challenge in this hot field. To address this issue, a symmetry-based design strategy has been applied herein to obtain pseudo-symmetric complexes [M2-(tpbz)(NHC)2¬]2+ (M = Cu, Ag, Au) scaffolded by 1,2,4,5-tetrakis(diphenylphosphino)benzene (tpbz) and N-heterocyclic carbene (NHC) ligands. In the solid state, these compounds exhibit cyan-to-yellow TADF of the metal-to-ligand charge transfer type with excellent quantum yields (58–89%) and short decay times (2.5–15 µs). It has been shown that the Davydov model underlying the symmetry-based design strategy significantly increases the radiative constants of the “dimers” [M2¬(tpbz)(NHC)2¬]2+ compared to the “monomers” [M(dppb)(NHC)]+ based on 1,2-bis(diphenylphosphino)benzene (dppb). The practical potential of the designed TADF emitters has been demonstrated through their application as innovative thermo- and vapor-chromic emissive inks for advanced anti-counterfeiting labels.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142541389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Three-dimensional porous rhodium-copper alloy nanoflowers stereoassembled on Ti3C2Tx MXene as highly-efficient methanol oxidation electrocatalysts 立体组装在 Ti3C2Tx MXene 上的三维多孔铑铜合金纳米流作为高效甲醇氧化电催化剂

IF 7 1区化学

Inorganic Chemistry Frontiers Pub Date : 2024-10-29 DOI: 10.1039/d4qi02182g

Haiyan He, Yue Lan, Jinlong Qin, Quanguo Jiang, Lu Yang, Jian Zhang, Huajie Huang

{"title":"Three-dimensional porous rhodium-copper alloy nanoflowers stereoassembled on Ti3C2Tx MXene as highly-efficient methanol oxidation electrocatalysts","authors":"Haiyan He, Yue Lan, Jinlong Qin, Quanguo Jiang, Lu Yang, Jian Zhang, Huajie Huang","doi":"10.1039/d4qi02182g","DOIUrl":"https://doi.org/10.1039/d4qi02182g","url":null,"abstract":"The development of direct methanol fuel cell technology is expected to ease the excessive consumption of non-renewable fossil fuels, which puts forward the new request to the exploration of advanced Pt-alternative electrocatalysts toward the methanol oxidation reaction. Here, we demonstrate a facile and robust bottom-up method to the spatial construction of three-dimensional (3D) porous rhodium-copper alloy nanoflowers stereoassembled on Ti3C2Tx MXene nanosheets (RhCu NF/Ti3C2Tx) through an in situ soft-chemistry process. With the synergistic contributions from the distinctive structural merits, such as the 3D nanoflower-shaped configuration, abundant porosity, bimetallic alloy and strain effects, and excellent metallic conductivity, the resultant RhCu NF/Ti3C2Tx nanoarchitectures manifest significantly boosted electrocatalytic MOR performance in the alkaline condition, which is more competitive than that of conventional particle-shaped Rh catalysts dispersed on Ti3C2Tx nanosheets, graphene, carbon nanotubes, carbon black as well as commercial Pt/carbon black and Pd/carbon black catalysts.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Surface oxygen chemistry of metal oxide semiconductor for gas-sensing application 用于气体传感的金属氧化物半导体的表面氧化学反应

IF 7 1区化学

Inorganic Chemistry Frontiers Pub Date : 2024-10-29 DOI: 10.1039/d4qi02385d

Jiayu Li, Ertai Na, Xudong Liang, Qihua Liang, Meihong Fan, Hui Chen, Guodong Li, Xiaoxin Zou

{"title":"Surface oxygen chemistry of metal oxide semiconductor for gas-sensing application","authors":"Jiayu Li, Ertai Na, Xudong Liang, Qihua Liang, Meihong Fan, Hui Chen, Guodong Li, Xiaoxin Zou","doi":"10.1039/d4qi02385d","DOIUrl":"https://doi.org/10.1039/d4qi02385d","url":null,"abstract":"With the development of science and technology, the demand for reliable and efficient gas sensors in various applications, ranging from environmental monitoring to industrial safety, is increasing. In particular, MOS based-sensors have been extensively studied due to their stability, fast response, and cost-effectiveness. Given this backdrop, the paper reviews the gas-sensing mechanisms of metal oxide semiconductor (MOS) gas sensors, focusing on the role of oxygen participation. The electron depletion layer/hole accumulation layer theory is discussed, emphasizing the importance of chemisorbed oxygen in gas-sensing reactions. However, recent observations have challenged the conventional oxygen adsorption mechanism, suggesting the involvement of lattice oxygen in certain conditions. This review categorizes the degree of oxygen participation into three levels and analyzes existing theories and methods to enhance sensor performance. The specific scenarios of lattice oxygen participation, current understanding, and characterization methods are presented. The article concludes with future prospects and questions to guide further research in advancing MOS-based gas sensors.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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