Journal of Energy Chemistry最新文献

Unraveling the exceptional kinetics of Zn||organic batteries in hydrated deep eutectic solution 揭示锌||有机电池在水合深共晶溶液中的特殊动力学特性

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-23 DOI: 10.1016/j.jechem.2024.10.016

{"title":"Unraveling the exceptional kinetics of Zn||organic batteries in hydrated deep eutectic solution","authors":"","doi":"10.1016/j.jechem.2024.10.016","DOIUrl":"10.1016/j.jechem.2024.10.016","url":null,"abstract":"<div><div>Intuitively, the solvation structure featuring stronger interacted sheath in deep eutectic solution (DES) electrolyte would result in sluggish interfacial charge transfer and intense polarization, which obstructs its practical application in emerging Zn based batteries. Unexpectedly, here we discover a Zn||organic battery with exceptional kinetics properties enabled by a hydrated DES electrolyte, which can render higher discharge capacity, smaller voltage polarization, and faster kinetics of charge transfer in comparison with conventional aqueous 3 M ZnCl2 electrolyte, though its viscosity is two orders of magnitude higher than the latter. The improved kinetics of charge transfer and ion diffusion is demonstrated to originate from the local electron structure regulation of cathode in hydrated DES electrolyte. Furthermore, the DES electrolyte has also been shown to restrict parasitic reaction associated with active water by preferential urea-molecular adsorption on Zn surface and stronger water trapping in solvation structure, giving rise to long-term stable dendrite-free Zn plating/stripping. This work provides a new rationale for understanding electrochemical behaviors of organic cathodes in DES electrolyte, which is conducive to the development of high-performance Zn||organic batteries.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571544","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

Electronic modulation towards MOFs as template derived CoP via engineered heteroatom defect for a highly efficient overall water splitting 通过设计杂原子缺陷对作为模板衍生 CoP 的 MOFs 进行电子调制，实现高效整体水分离

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-22 DOI: 10.1016/j.jechem.2024.10.010

{"title":"Electronic modulation towards MOFs as template derived CoP via engineered heteroatom defect for a highly efficient overall water splitting","authors":"","doi":"10.1016/j.jechem.2024.10.010","DOIUrl":"10.1016/j.jechem.2024.10.010","url":null,"abstract":"<div><div>The reasonable design of material morphology and eco-friendly electrocatalysts are essential to highly efficient water splitting. It is proposed that a promising strategy effectively regulates the electronic structure of the d‐orbitals of CoP using cerium doping in this paper, thus significantly improving the intrinsic property and conductivity of CoP for water splitting. As a result, the as-synthesize porous Ce-doped CoP micro-polyhedron composite derived from Ce-ZIF-67 as bifunctional electrocatalytic materials exhibits excellent electrocatalytic performance in both the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER), overpotentials of about 152 mV for HER at 10 mA cm−2 and about 352 mV for OER at 50 mA cm−2, and especially it shows outstanding long-term stability. Besides, an alkaline electrolyzer, using Ce0.04Co0.96P electrocatalyst as both the anode and cathode, delivers a cell voltage value of 1.55 V at the current density of 10 mA cm−2. The calculation results of the density functional theory (DFT) demonstrate that the introduction of an appropriate amount of Ce into CoP can enhance the conductivity, and can induce the electronic modulation to regulate the selective adsorption of reaction intermediates on catalytic surface and the formation of O* intermediates (CoOOH), which exhibits an excellent electrocatalytic performance. This study provides novel insights into the design of an extraordinary performance water-splitting of the multicomponent electrocatalysts.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571454","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

Enhanced dynamics of Al3+/H+ ions in aqueous aluminum ion batteries: Construction of metastable structures in vanadium pentoxide upon oxygen vacancies

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-22 DOI: 10.1016/j.jechem.2024.09.062

{"title":"Enhanced dynamics of Al3+/H+ ions in aqueous aluminum ion batteries: Construction of metastable structures in vanadium pentoxide upon oxygen vacancies","authors":"","doi":"10.1016/j.jechem.2024.09.062","DOIUrl":"10.1016/j.jechem.2024.09.062","url":null,"abstract":"<div><div>In recent years, aqueous aluminum ion batteries have been widely studied owing to their abundant energy storage and high theoretical capacity. An in-depth study of vanadium oxide materials is necessary to address the precipitation of insoluble products covered cathode surface and the slow reaction kinetics. Therefore, a method using a simple one-step hydrothermal preparation and oxalic acid to regulate oxygen vacancies has been reported. A high starting capacity (400 mAh g−1) can be achieved by Ov<img>V2O5, and it is capable of undergoing 200 cycles at 0.4 A g−1, with a termination discharge capacity of 103 mAh g−1. Mechanism analysis demonstrated that metastable structures (AlxV2O5 and HxV2O5) were constructed through the insertion of Al3+/H+ during discharging, which existed in the lattice intercalation with V2O5. The incorporation of oxygen vacancies lowers the reaction energy barrier while improving the ion transport efficiency. In addition, the metastable structure allows the electrostatic interaction between Al3+ and the main backbone to establish protection and optimize the transport channel. In parallel, this work exploits ex-situ characterization and DFT to obtain a profound insight into the instrumental effect of oxygen vacancies in the construction of metastable structures during in-situ electrochemical activation, with a view to better understanding the mechanism of the synergistic participation of Al3+ and H+ in the reaction. This work not only reports a method for cathode materials to modulate oxygen vacancies, but also lays the foundation for a deeper understanding of the metastable structure of vanadium oxides.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571543","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

Design principles of novel Zn fluorocarboxylate protection layer toward durable dendrite-free Zn metal anodes

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-18 DOI: 10.1016/j.jechem.2024.10.004

{"title":"Design principles of novel Zn fluorocarboxylate protection layer toward durable dendrite-free Zn metal anodes","authors":"","doi":"10.1016/j.jechem.2024.10.004","DOIUrl":"10.1016/j.jechem.2024.10.004","url":null,"abstract":"<div><div>Aqueous Zn ion batteries (ZIBs) have received extensive attention due to their intrinsic safety, high abundance, and low cost. However, uncontrolled dendrite growth and water-induced side reactions at electrode/electrolyte interfaces hinder the advancement of ZIBs. Herein, density functional theory (DFT) calculation indicates that Zn heptafluorobutyrate can facilitate uniform Zn2+ deposition by leveraging the abundant zincophilic groups (e.g., –COO− and –CF) and inhibit water-induced side reactions due to the presence of hydrophobic carbon chains. A Zn heptafluorobutyrate protective layer (denoted as ZFA) is constructed on the metallic Zn surface in situ by acid etching process to control Zn2+ desolvation and nucleation behaviors, ensuring enhanced reversibility and stability of Zn anodes. Consequently, the Zn@ZFA anode demonstrates stable operation for more than 2200 h at 1 mA cm−2 and over 7300 cycles at 40 mA cm−2, with high Coulombic efficiency of 99.8% over 1900 cycles at 5 mA cm−2. Impressively, Zn@ZFA||VO2 full cell achieves exceptional cycle life (204 mA h g−1 after 750 cycles at 3 A g−1) and remarkable rate performance (236 mA g−1 at 10 A g−1). This work provides an insightful guidance for constructing a protection layer of dendrite-free Zn anodes for high-performance ZIBs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571545","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

Upcycling of monomers derived from waste polyester plastics via electrocatalysis 通过电催化技术实现废聚酯塑料单体的升级再循环

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-18 DOI: 10.1016/j.jechem.2024.10.005

{"title":"Upcycling of monomers derived from waste polyester plastics via electrocatalysis","authors":"","doi":"10.1016/j.jechem.2024.10.005","DOIUrl":"10.1016/j.jechem.2024.10.005","url":null,"abstract":"<div><div>Electrocatalysis offers efficient and targeted conversion of monomers derived from waste polyester plastics to chemical products under ambient temperature and pressure conditions. This review provides analysis of research on electrochemical upgrading of monomers derived from waste polyester plastics published from 2021 to present. Factors for assessing upgrading of waste polyester plastics include alkaline hydrolysis pretreatment, indices of electrochemical reaction process (activity, stability, and techno-economic analysis), separation, and product recovery. Types of depolymerization monomers and their value-added products are summarized along with electrocatalytic mechanisms and reaction pathways. Notably, cathode coupled reactions offer significant value for anodic waste plastic oxidation during electrolysis processes. Development of bifunctional electrocatalysts can reduce the cost of coupled systems and complexity of the electrolyzer. Upgrading and recycling of waste plastic monomers using electrocatalytic technology should undergo downstream processing to form high-value products containing C–N and C–S derived functional groups obtained from depolymerized monomers. Electrochemical conversion and upgrading of monomers derived from waste polyester plastics can contribute to industrialization and global economies and help to realize environmental sustainability.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571455","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

Integrating Cu+/Cu0 sites on porous nitrogen-doped carbon nanofibers for stable and efficient CO2 electroreduction to multicarbon products 在多孔掺氮碳纳米纤维上整合 Cu+/Cu0 位点，稳定高效地将二氧化碳电还原为多碳产品

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-17 DOI: 10.1016/j.jechem.2024.09.059

{"title":"Integrating Cu+/Cu0 sites on porous nitrogen-doped carbon nanofibers for stable and efficient CO2 electroreduction to multicarbon products","authors":"","doi":"10.1016/j.jechem.2024.09.059","DOIUrl":"10.1016/j.jechem.2024.09.059","url":null,"abstract":"<div><div>The Cu+/Cu0 sites of copper-based catalysts are crucial for enhancing the production of multicarbon (C2+) products from electrochemical CO2 reduction reaction (eCO2RR). However, the unstable Cu+ and insufficient Cu+/Cu0 active sites lead to their limited selectivity and stability for C2+ production. Herein, we embedded copper oxide (CuOx) particles into porous nitrogen-doped carbon nanofibers (CuOx@PCNF) by pyrolysis of the electrospun fiber film containing ZIF-8 and Cu2O particles. The porous nitrogen-doped carbon nanofibers protected and dispersed Cu+ species, and its microporous structure enhanced the interaction between CuOx and reactants during eCO2RR. The obtained CuOx@PCNF created more effective and stable Cu+/Cu0 active sites. It showed a high Faradaic efficiency of 62.5% for C2+ products in H-cell, which was 2 times higher than that of bare CuOx (∼31.1%). Furthermore, it achieved a maximum Faradaic efficiency of 80.7% for C2+ products in flow cell. In situ characterization and density functional theory (DFT) calculation confirmed that the N-doped carbon layer protected Cu+ from electrochemical reduction and lowered the energy barrier for the dimerization of *CO. Stable and exposed Cu+/Cu0 active sites enhanced the enrichment of *CO and promoted the C–C coupling reaction on the catalyst surface, which facilitated the formation of C2+ products.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571456","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

Platinum modification of metallic cobalt defect sites for efficient electrocatalytic oxidation of 5-hydroxymethylfurfural 铂修饰金属钴缺陷位点以实现 5-羟甲基糠醛的高效电催化氧化

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-17 DOI: 10.1016/j.jechem.2024.09.054

{"title":"Platinum modification of metallic cobalt defect sites for efficient electrocatalytic oxidation of 5-hydroxymethylfurfural","authors":"","doi":"10.1016/j.jechem.2024.09.054","DOIUrl":"10.1016/j.jechem.2024.09.054","url":null,"abstract":"<div><div>Co3O4 possesses both direct and indirect oxidation effects and is considered as a promising catalyst for the oxidation of 5-hydroxymethylfurfural (HMF). However, the enrichment and activation effects of Co3O4 on OH− and HMF are weak, which limits its further application. Metal defect engineering can regulate the electronic structure, optimize the adsorption of intermediates, and improve the catalytic activity by breaking the symmetry of the material, which is rarely involved in the upgrading of biomass. In this work, we prepare Co3O4 with metal defects and load the precious metal platinum at the defect sites (Pt-Vco). The results of in-situ characterizations, electrochemical measurements, and theoretical calculations indicate that the reduction of Co–Co coordination number and the formation of Pt–Co bond induce the decrease of electron filling in the antibonding orbitals of Co element. The resulting upward shift of the d-band center of Co combined with the characteristic adsorption of Pt species synergically enhances the enrichment and activation of organic molecules and OH− species, thus exhibiting excellent HMF oxidation activity (including a lower onset potential (1.14 V) and 19 times higher current density than pure Co3O4 at 1.35 V). In summary, this work explores the adsorption enhancement mechanism of metal defect sites modified by precious metal in detail, provides a new option for improving the HMF oxidation activity of cobalt-based materials, broadens the application field of metal defect based materials, and gives an innovative guidance for the functional utilization of metal defect sites in biomass conversion.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571457","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

Constructing electrochemically stable single crystal Ni-rich cathode material via modification with high valence metal oxides 通过改性高价金属氧化物构建电化学性能稳定的单晶富镍阴极材料

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-17 DOI: 10.1016/j.jechem.2024.09.056

{"title":"Constructing electrochemically stable single crystal Ni-rich cathode material via modification with high valence metal oxides","authors":"","doi":"10.1016/j.jechem.2024.09.056","DOIUrl":"10.1016/j.jechem.2024.09.056","url":null,"abstract":"<div><div>Single crystal Ni-rich cathode materials (SCNCM) are a good supplement in the market of nickel-based materials due to their safety and excellent electrochemical performance. However, the challenges of cation mixing, phase change during charge/discharge, and low thermal stability remain unresolved in single crystal particles. To address these issues, SCNCM are rationally modified by incorporating transition metal (TM) oxides, and the influence of metal ions with different valence states on the electrochemical properties of SCNCM is methodically explored through experimental results and theoretical calculations. Enhanced structural stability is demonstrated in SCNCM after the modifications, and the degree of improvement in the matrix materials varies depending on the valence state of doped TM ions. The highest structural stability is found in WO3-modified SCNCM, due to the smaller effective ion radii, higher electro-negativity, stronger W–O bond, and efficient suppression of oxygen vacancy generation. As a result, WO3-modified SCNCM have outstanding cycle performance, with a capacity retention rate of 90.2% after 200 cycles. This study provides an insight into the design of advanced SCNCM with enhanced reversibility and cyclability.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552553","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

Stabilizing water and regulating interfacial electrostatic interaction with economical supporting salt for stable Zn metal anode 稳定水和调节与经济型支撑盐的界面静电相互作用，实现稳定的金属锌阳极

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-16 DOI: 10.1016/j.jechem.2024.10.003

引用次数: 0

Sulfur doping and oxygen vacancy in In2O3 nanotube co-regulate intermediates of CO2 electroreduction for efficient HCOOH production and rechargeable Zn-CO2 battery In2O3 纳米管中的硫掺杂和氧空位共同调节 CO2 电还原的中间产物，实现高效 HCOOH 生产和可充电 Zn-CO2 电池

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-16 DOI: 10.1016/j.jechem.2024.09.057

{"title":"Sulfur doping and oxygen vacancy in In2O3 nanotube co-regulate intermediates of CO2 electroreduction for efficient HCOOH production and rechargeable Zn-CO2 battery","authors":"","doi":"10.1016/j.jechem.2024.09.057","DOIUrl":"10.1016/j.jechem.2024.09.057","url":null,"abstract":"<div><div>By manipulating the distribution of surface electrons, defect engineering enables effective control over the adsorption energy between adsorbates and active sites in the CO2 reduction reaction (CO2RR). Herein, we report a hollow indium oxide nanotube containing both oxygen vacancy and sulfur doping (Vo-Sx-In2O3) for improved CO2-to-HCOOH electroreduction and Zn-CO2 battery. The componential synergy significantly reduces the *OCHO formation barrier to expedite protonation process and creates a favorable electronic micro-environment for *HCOOH desorption. As a result, the CO2RR performance of Vo-Sx-In2O3 outperforms Pure-In2O3 and Vo-In2O3, where Vo-S53-In2O3 exhibits a maximal HCOOH Faradaic efficiency of 92.4% at −1.2 V vs. reversible hydrogen electrode (RHE) in H-cell and above 92% over a wide window potential with high current density (119.1 mA cm−2 at −1.1 V vs. RHE) in flow cell. Furthermore, the rechargeable Zn-CO2 battery utilizing Vo-S53-In2O3 as cathode shows a high power density of 2.29 mW cm−2 and a long-term stability during charge–discharge cycles. This work provides a valuable perspective to elucidate co-defective catalysts in regulating the intermediates for efficient CO2RR.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571374","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