ChemElectroChem最新文献_第6页

Recent Advances in Non-Carbon Dense Sulfur Cathodes for Lithium–Sulfur Battery with High Energy Density

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-11-13 DOI: 10.1002/celc.202400481

Viet Phuong Nguyen, Seung-Mo Lee

{"title":"Recent Advances in Non-Carbon Dense Sulfur Cathodes for Lithium–Sulfur Battery with High Energy Density","authors":"Viet Phuong Nguyen, Seung-Mo Lee","doi":"10.1002/celc.202400481","DOIUrl":"https://doi.org/10.1002/celc.202400481","url":null,"abstract":"The seemingly advantageous features of carbon-based materials, such as large pore volume and lightweight structure, could actually lead to low tap density for the sulfur cathode and excessive electrolyte consumption, potentially significantly decreasing the energy density of lithium–sulfur battery. Recently, non-carbon-based materials composed of inorganic matter have emerged as promising candidates for creating dense sulfur cathodes and reducing electrolyte intake. Additionally, inorganic matter exhibits strong interactions with lithium polysulfides, which can address the intrinsic problems of the severe shuttling effect and poor reaction kinetics. In this review, we first discuss the relationship between the tap density of the sulfur cathode and the energy density of lithium–sulfur battery. Subsequently, we systematically summarize recent advances in non-carbon-based materials as sulfur hosts. Finally, we propose future research directions and perspectives for sulfur host materials to inspire the realization of practical lithium–sulfur battery with high energy density.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 24","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400481","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Cation Effect of Bio-Ionic Liquid-Based Electrolytes on the Performance of Zn-Ion Capacitors

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-11-13 DOI: 10.1002/celc.202400511

Sumana Brahma, Jonathan Huddleston, Abhishek Lahiri

{"title":"Cation Effect of Bio-Ionic Liquid-Based Electrolytes on the Performance of Zn-Ion Capacitors","authors":"Sumana Brahma, Jonathan Huddleston, Abhishek Lahiri","doi":"10.1002/celc.202400511","DOIUrl":"https://doi.org/10.1002/celc.202400511","url":null,"abstract":"Zn-ion capacitors (ZICs) are emerging as promising energy storage devices due to their low cost. Currently, aqueous-based electrolytes are primarily used in ZIC which have shown issues related to low Zn deposition/stripping efficiencies, and Zn dendrites formation, resulting in device failure. To overcome these issues and to develop environmentally benign energy storage devices, here we have studied bio-ionic liquid electrolytes (bio-ILs) in both symmetric and asymmetric capacitors. Choline acetate (ChOAc) and betaine acetate (BetOAc) in water were investigated as electrolytes for capacitors in the presence and absence of Zn salts. Spectroscopic analysis showed that Zn solvation in the electrolytes changes significantly with the change in cation which affects the electrochemical reactions and capacitor performance. Raman analysis showed the Zn complex formed in the case of ChOAc is [Zn(OAc)4]2− whereas for BetOAc is [Zn(OAc)5]3− thereby the Zn deposition/stripping in ChOAc-based electrolyte is quite stable whereas in case of BetOAc, Zn deposition/stripping is unstable. In the ChOAc electrolyte, the Zn/activated carbon asymmetric cell showed a capacity of >90 F g−1 at 0.1 A g−1 and a capacitance close to 40 F g−1 at 0.5 A g−1 with ∼82 % capacity retention after 3000 cycles, whereas BetOAc could only be used in symmetric cell capacitor. This study shows that bio-ILs can be used as sustainable electrolytes in energy storage devices wherein the cation plays a significant role in the capacitor performance.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 24","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400511","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Synthesis of MoS₂/Graphene Hetero-Film Photocatalyst and Li-Oxygen Battery Application

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-11-13 DOI: 10.1002/celc.202400577

Ali Can Çelt, Meltem Çayirli, Reşat Can Özden, Ersu Lökçü, Mustafa Anik

引用次数: 0

Front Cover: High-performance Porous Electrodes for Flow Batteries: Improvements of Specific Surface Areas and Reaction Kinetics (ChemElectroChem 21/2024) 封面：用于液流电池的高性能多孔电极：比表面积和反应动力学的改进（ChemElectroChem 21/2024）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-11-07 DOI: 10.1002/celc.202482101

Lyuming Pan, Zixiao Guo, Hucheng Li, Yilin Wang, Haoyao Rao, Qinping Jian, Jing Sun, Jiayou Ren, Zhenyu Wang, Bin Liu, Meisheng Han, Yubai Li, Xinzhuang Fan, Wenjia Li, Lei Wei

引用次数: 0

Cover Feature: Cost-Effective Solutions for Lithium-Ion Battery Manufacturing: Comparative Analysis of Olefine and Rubber-Based Alternative Binders for High-Energy Ni-Rich NCM Cathodes (ChemElectroChem 21/2024) 封面专题：锂离子电池制造的成本效益解决方案：用于高能量富镍 NCM 阴极的烯烃基和橡胶基替代粘合剂的比较分析（ChemElectroChem 21/2024）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-11-07 DOI: 10.1002/celc.202482102

Susan Montes, Alexander Beutl, Andrea Paolella, Marcus Jahn, Artur Tron

引用次数: 0

Phosphorus Doped MoO2 Enhanced Pt Catalyst for Methanol Oxidation

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-11-07 DOI: 10.1002/celc.202400505

Yuanbo Li, Meng Li, Mamutjan Tursun, Prof. Abdukader Abdukayum, Prof. Ligang Feng

{"title":"Phosphorus Doped MoO2 Enhanced Pt Catalyst for Methanol Oxidation","authors":"Yuanbo Li, Meng Li, Mamutjan Tursun, Prof. Abdukader Abdukayum, Prof. Ligang Feng","doi":"10.1002/celc.202400505","DOIUrl":"https://doi.org/10.1002/celc.202400505","url":null,"abstract":"The sluggish kinetics of methanol oxidation reaction (MOR) required high-performing catalysts in the development of direct methanol fuel cells. Herein, a phosphorus-doped MoO2 nanorods-supported Pt catalyst was proposed which exhibited remarkably enhanced catalytic performance toward MOR in comparison with Pt/MoO2 and commercial Pt/C. Specifically, the Pt/MoO2-P possessed the highest peak current density of 62.63 mA cm−2, about 1.38 and 2.21 times higher than that of Pt/MoO2 (45.24 mA cm−2) and Pt/C (28.40 mA cm−2), respectively. Meanwhile, the Pt/MoO2-P possessed high intrinsic activity expressed by specific activity and mass activity, and largely improved catalytic kinetics. Moreover, the chronoamperometry and CO-stripping testing successfully revealed the superior stability and CO-poisoning resistance of Pt/MoO2-P, rendering Pt/MoO2-P a promising catalyst for MOR. The theoretical calculation revealed the electron redistribution and strong metal-support interaction among Pt/MoO2-P catalysts. The greatly enhanced catalytic performance could be attributed to the heteroatom doping engineering, greatly enhancing the conductivity, and inducing electron redistribution, thereby leading to the strong metal-support interaction and high CO-anti poisoning ability.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 24","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400505","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Core-Shell Amorphous FePO4 as Cathode Material for Lithium-Ion and Sodium-Ion Batteries 核壳非晶FePO4作为锂离子和钠离子电池正极材料

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-11-06 DOI: 10.1002/celc.202400484

Peng Tang, John Prochest Kachenje, Xiaoping Qin, Huihui Li, Xiangdong Zeng, Haiyang Tian, Wei Cao, Ying Zhou, Di Heng, Shishi Yuan, Xun Jia, Xiaolong Zhang, Xiaoyu Zhao

{"title":"Core-Shell Amorphous FePO4 as Cathode Material for Lithium-Ion and Sodium-Ion Batteries","authors":"Peng Tang, John Prochest Kachenje, Xiaoping Qin, Huihui Li, Xiangdong Zeng, Haiyang Tian, Wei Cao, Ying Zhou, Di Heng, Shishi Yuan, Xun Jia, Xiaolong Zhang, Xiaoyu Zhao","doi":"10.1002/celc.202400484","DOIUrl":"https://doi.org/10.1002/celc.202400484","url":null,"abstract":"Amorphous FePO4 (AFP) is a promising cathode material for lithium-ion and sodium-ion batteries (LIBs & SIBs) due to its stability, high theoretical capacity, and cost-effective processing. However, challenges such as low electronic conductivity and volumetric changes seriously hinder its practical application. To overcome these hurdles, core-shell structure synthesis emerges as a useful solution. In this work, we for the first time made this comprehensive review on the progresses of core-shell amorphous FePO4 (CS-AFP). This review summarizes 1) various synthesis methods such as template method, microemulsion method, and other methods, 2) characterization techniques, and 3) their involvement in improving electrochemical performance in LIBs and SIBs. In terms of further understanding the underlying mechanisms of advancing electrochemical performance of CS-AFP, the future perspective on two main aspects were insighted: (i) in situ characterization and (ii) novel designs of materials and structure for CS-AFP.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 23","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400484","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Enhanced Electrochemical Performance of Copper(II) Metal Organic Framework-Ternary Quantum Dots Composite towards the Detection of Bisphenol A

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-11-05 DOI: 10.1002/celc.202400502

Solomon O. Oloyede, Peter A. Ajibade

{"title":"Enhanced Electrochemical Performance of Copper(II) Metal Organic Framework-Ternary Quantum Dots Composite towards the Detection of Bisphenol A","authors":"Solomon O. Oloyede, Peter A. Ajibade","doi":"10.1002/celc.202400502","DOIUrl":"https://doi.org/10.1002/celc.202400502","url":null,"abstract":"Ternary quantum dot metal organic framework (MOFs) composite sensor formulated as (ZnInSe2@[Cu(2-HNA)2(H2O)]) with an enhanced electrochemical performance was synthesized from a copper(II) metal-organic framework complex ([Cu(2-HNA)2(H2O)]) and ZnInSe2 ternary quantum dot (TQDs). The compounds were characterized by Fourier transform infrared spectroscopy, Ultraviolet-Visible spectroscopy, transmission electron microscopy, scanning electron microscopy, single crystal X-ray crystallography, and photoluminescence. Molecular structure of the copper(II) complex revealed a distorted square pyramidal geometry with two molecules of 2-hydroxy-1-naphthaldedyde at the basal planes as bidentate chelating ligands with a coordinated water molecule at the apical position. TEM micrographs revealed monodispersed composite with an average particle size of 3.2 nm. The composite and its precursors were used as ectrochemical sensor for the detection of bisphenol A, using cyclic voltammetry, differential pulse voltammetry, and electrochemical impedance spectroscopy. The composite modified on a gold electrode exhibited enhanced electrochemical performance in comparison to those of the MOFs and TQDs. The reaction process at the surface of the modified electrode with the composite is diffusion controlled with a limit of detection, and limit of quantitation of 4.70 nM and 14.26 nM over a concentration range of 10–50 nM (S/N=3). The gold modified composite electrode is stable and could serve as a model for the development of electrochemical sensor to determine BPA.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 24","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400502","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

PVDF and PEO Catholytes in Solid-State Cathodes Made by Conventional Slurry Casting 传统浆料浇铸法制造的固态阴极中的 PVDF 和 PEO 阴极

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-30 DOI: 10.1002/celc.202400472

Benjamin R. Howell, Joshua W. Gallaway

{"title":"PVDF and PEO Catholytes in Solid-State Cathodes Made by Conventional Slurry Casting","authors":"Benjamin R. Howell, Joshua W. Gallaway","doi":"10.1002/celc.202400472","DOIUrl":"https://doi.org/10.1002/celc.202400472","url":null,"abstract":"All-solid-state Li batteries are desired for better safety and energy density than Li-ion batteries. However, the lack of a penetrating liquid electrolyte requires a much different approach to the design of cathodes. The solid catholyte must enable good Li+ conduction, form good interfaces with active material particles, and have the strength to bind the cathode together during repeated volume changes. Catholyte formulation is often simply adapted from Li-ion design principles, adding a Li salt to the PVDF binder. Here we show that such a PVDF binder at 10 wt % loading is a starved catholyte condition that compromises cell performance. By substituting a 70 : 30 blend of PVDF:PEO, performance is improved while maintaining nearly the same areal loading of LFP active material. Increasing the catholyte fraction to 16 % can also improve performance, but in this case the benefit of including PEO is lessened, with PVDF alone being an adequate catholyte. EIS analysis shows that PEO helps to form charge transfer interfaces at 10 % catholyte, but that its inclusion can degrade interfaces when there is ample catholyte at 16 %. It is also shown that catholyte agglomeration can impede bulk Li conduction, indicating that microstructural factors are of critical importance.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 22","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400472","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142674384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Ex Situ Electro-Organic Synthesis – A Method for Unrestricted Reaction Control and New Options for Paired Electrolysis 原位电有机合成--不受限制的反应控制方法和配对电解的新选择

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-30 DOI: 10.1002/celc.202400489

Helena Pletsch, Yang Lyu, Dominik P. Halter

{"title":"Ex Situ Electro-Organic Synthesis – A Method for Unrestricted Reaction Control and New Options for Paired Electrolysis","authors":"Helena Pletsch, Yang Lyu, Dominik P. Halter","doi":"10.1002/celc.202400489","DOIUrl":"https://doi.org/10.1002/celc.202400489","url":null,"abstract":"Classic in situ electro-organic synthesis with substrates in an electrolyzer must compromise process conditions to balance electro- and thermochemical steps at both electrodes. This often restricts efficiency and product selectivity, since requirements may deviate for electrochemical (catalyst activation) and chemical (organic synthesis) steps, as well as for paired anode- and cathode reactions. Breaking this barrier, we report ex situ electro-organic synthesis as a versatile method that enables unique product selectivity and unusual product pairs. We exemplify the concept for pairing H2 evolution (HER) with anodic alcohol oxidation. The two-step method accomplishes this by separating cathode reactions from organic substrate oxidation, and anodic electrocatalyst activation from chemical conversion of organic substrates in time and space. First, the electro-oxidation of Ni(OH)2 anodes to NiOOH is paired with H2 production by alkaline water electrolysis. Then, “charged” NiOOH electrodes are removed from the electrolyzer and used in external vessels to oxidize model substrate benzyl alcohol under regeneration of Ni(OH)2. Free choice of reaction media outside the electrolyzer allows to selectively obtain benzoic acid (in water) or benzaldehyde (in n-hexane), whereas classic in situ electrosynthesis only produces the acid together with H2. Perspectively, the method enables electrosynthesis of previously inaccessible products paired to H2 generation.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 22","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400489","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142674383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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