Journal of Energy Chemistry最新文献_第2页

Dual-phase interface engineering via parallel modulation strategy for highly reversible Zn metal batteries 通过并行调制策略实现双相界面工程，打造高度可逆的金属锌电池

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-16 DOI: 10.1016/j.jechem.2024.09.053

{"title":"Dual-phase interface engineering via parallel modulation strategy for highly reversible Zn metal batteries","authors":"","doi":"10.1016/j.jechem.2024.09.053","DOIUrl":"10.1016/j.jechem.2024.09.053","url":null,"abstract":"<div><div>The reversibility and stability of aqueous Zn metal batteries (AZMBs) are largely limited by Zn dendrites and interfacial parasitic reactions. Herein, we propose a parallel modulation strategy to boost the reversibility of the Zn anode by introducing <em>N</em>,<em>N</em>,<em>N’</em>,<em>N’</em>-tetramethylchloroformamidinium hexafluorophosphate (TCFH) as an additive in the electrolyte. TCFH is composed of PF<sub>6</sub><sup>−</sup> and TN<sup>+</sup> with opposite charges. PF<sub>6</sub><sup>−</sup> can spontaneously induce the in-situ generation of ZnF<sub>2</sub> solid electrolyte interface (SEI) on the anode, which can improve the transport kinetics of Zn<sup>2+</sup> at the interface, thus promoting the rapid and uniform deposition of Zn as well as inhibiting the growth of dendrites. In addition, TN<sup>+</sup> is enriched at the anode surface during Zn deposition through the anchoring effect, which brings a reconfiguration of the ion/molecule distribution. The anchored-TN<sup>+</sup> reduces the concentrations of H<sub>2</sub>O and SO<sub>4</sub><sup>2−</sup>, sufficiently restraining the parasitic reaction. Thanks to the dual-phase interface engineering constructed of PF<sub>6</sub><sup>−</sup> and TN<sup>+</sup> in parallel, the symmetric cell with the proposed electrolyte survives long cycling stability over 750 h at 20 mA cm<sup>−2</sup>, 10 mAh cm<sup>−2</sup>. This study offers a distinct viewpoint to the multidimensional optimization of Zn anodes for high-performance AZMBs.</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":"142530530","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

Electro-functionalized 2D nitrogen-carbon nanosheets decorated with symbiotic cobalt single-atoms/clusters 用共生钴单原子/簇装饰的电功能化二维氮碳纳米片

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-16 DOI: 10.1016/j.jechem.2024.09.052

{"title":"Electro-functionalized 2D nitrogen-carbon nanosheets decorated with symbiotic cobalt single-atoms/clusters","authors":"","doi":"10.1016/j.jechem.2024.09.052","DOIUrl":"10.1016/j.jechem.2024.09.052","url":null,"abstract":"<div><div>Two-dimensional (2D) materials loaded with single atoms and clusters are being set at the forefront of catalysis due to their distinctive geometric and electronic features. However, the usually-complicated synthesis procedures impede in-depth clarification of their catalytic mechanisms. To this end, herein we developed an efficient one-step dimension-reduction carbonization strategy, with which we successfully architected a highly-efficient catalyst for oxygen reduction reaction (ORR), featured with symbiotic cobalt single atoms and clusters decorated in two-dimensional (2D) ultra-thin (3.5 nm thickness) nitrogen-carbon nanosheets. The synergistic effects of the two components afford excellent oxygen reduction activity in alkaline media (<em>E</em><sub>1/2</sub> = 0.823 V <em>vs.</em> RHE) and thereof a high power density (146.61 mW cm<sup>−2</sup>) in an assembled Zn-air battery. As revealed by theoretical calculations, the cobalt clusters can regulate electrons surrounding those individual atoms and affect the adsorption of intermediate species. As a consequence, the derived active sites of single cobalt atoms lead to a significant improvement of the ORR performance. Thus, our work may fuel interests to delicate architecture of single atoms and clusters coexisting 2D support toward optimal electrocatalytic performance.</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":"142552552","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

Magnetically-responsive phase change thermal storage materials: Mechanisms, advances, and beyond 磁响应相变蓄热材料：机理、进展及其他

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-16 DOI: 10.1016/j.jechem.2024.09.055

{"title":"Magnetically-responsive phase change thermal storage materials: Mechanisms, advances, and beyond","authors":"","doi":"10.1016/j.jechem.2024.09.055","DOIUrl":"10.1016/j.jechem.2024.09.055","url":null,"abstract":"<div><div>Rapid advances in thermal management technology and the increasing need for multi-energy conversion have placed stringent energy efficiency requirements on next-generation shape-stable composite phase change materials (PCMs). Magnetically-responsive phase change thermal storage materials are considered an emerging concept for energy storage systems, enabling PCMs to perform unprecedented functions (such as green energy utilization, magnetic thermotherapy, drug release, etc.). The combination of multifunctional magnetic nanomaterials and PCMs is a milestone in the creation of advanced multifunctional composite PCMs. However, a timely and comprehensive review of composite PCMs based on magnetic nanoparticle modification is still missing. Herein, we furnish an exhaustive exposition elucidating the cutting-edge advancements in magnetically responsive composite PCMs. We delve deeply into the multifarious roles assumed by distinct nanoparticles within composite PCMs of varying dimensions, meticulously scrutinizing the intricate interplay between their architectures and thermophysical attributes. Moreover, we prognosticate future research trajectories, delineate alternative stratagems, and illuminate prospective avenues. This review is intended to stimulate broader academic interest in interdisciplinary fields and provide valuable insights into the development of next-generation magnetically-responsive composite PCMs.</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":"142571375","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

Hybrid conductive-lithophilic-fluoride triple protection interface engineering: Dendrite-free reverse lithium deposition for high-performance lithium metal batteries 混合导电-嗜石-氟化物三重保护界面工程：用于高性能锂金属电池的无枝晶反向锂沉积技术

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-16 DOI: 10.1016/j.jechem.2024.10.002

{"title":"Hybrid conductive-lithophilic-fluoride triple protection interface engineering: Dendrite-free reverse lithium deposition for high-performance lithium metal batteries","authors":"","doi":"10.1016/j.jechem.2024.10.002","DOIUrl":"10.1016/j.jechem.2024.10.002","url":null,"abstract":"<div><div>Lithium metal batteries (LMBs) with high energy density are impeded by the instability of solid electrolyte interface (SEI) and the uncontrolled growth of lithium (Li) dendrite. To mitigate these challenges, optimizing the SEI structure and Li deposition behavior is the key to stable LMBs. This study novelty proposes a facile synthesis of MgF<sub>2</sub>/carbon (C) nanocomposite through the mechanochemical reaction between metallic Mg and polytetrafluoroethylene (PTFE) powders, and its modified polypropylene (PP) separator enhances LMB performance. The in-situ formed highly conductive fluorine-doped C species play a crucial role in facilitating ion/electron transport, thereby accelerating electrochemical kinetics and altering Li deposition direction. During cycling, the in-situ reaction between MgF<sub>2</sub> and Li leads to the formation of LiMg alloy, along with a LiF-rich SEI layer, which reduces the nucleation overpotential and reinforces the interphase strength, leading to homogeneous Li deposition with dendrite-free feature. Benefiting from these merits, the Li metal is densely and uniformly deposited on the MgF<sub>2</sub>/C@PP separator side rather than on the current collector side. Furthermore, the symmetric cell with MgF<sub>2</sub>/C@PP exhibits superb Li plating/stripping performance over 2800 h at 1 mA cm<sup>−2</sup> and 2 mA h cm<sup>−2</sup>. More importantly, the assembled Li@MgF<sub>2</sub>/C@PP|LiFePO<sub>4</sub> full cell with a low negative/positive ratio of 3.6 delivers an impressive cyclability with 82.7% capacity retention over 1400 cycles at 1 C.</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":"142552555","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 battery life prediction with reduced data demand via semi-supervised representation learning 通过半监督表征学习减少数据需求，提高电池寿命预测能力

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-16 DOI: 10.1016/j.jechem.2024.10.001

{"title":"Enhanced battery life prediction with reduced data demand via semi-supervised representation learning","authors":"","doi":"10.1016/j.jechem.2024.10.001","DOIUrl":"10.1016/j.jechem.2024.10.001","url":null,"abstract":"<div><div>Accurate prediction of the remaining useful life (RUL) is crucial for the design and management of lithium-ion batteries. Although various machine learning models offer promising predictions, one critical but often overlooked challenge is their demand for considerable run-to-failure data for training. Collection of such training data leads to prohibitive testing efforts as the run-to-failure tests can last for years. Here, we propose a semi-supervised representation learning method to enhance prediction accuracy by learning from data without RUL labels. Our approach builds on a sophisticated deep neural network that comprises an encoder and three decoder heads to extract time-dependent representation features from short-term battery operating data regardless of the existence of RUL labels. The approach is validated using three datasets collected from 34 batteries operating under various conditions, encompassing over 19,900 charge and discharge cycles. Our method achieves a root mean squared error (RMSE) within 25 cycles, even when only 1/50 of the training dataset is labelled, representing a reduction of 48% compared to the conventional approach. We also demonstrate the method’s robustness with varying numbers of labelled data and different weights assigned to the three decoder heads. The projection of extracted features in low space reveals that our method effectively learns degradation features from unlabelled data. Our approach highlights the promise of utilising semi-supervised learning to reduce the data demand for reliability monitoring of energy devices.</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":"142571377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Reversible Li plating regulation on graphite anode through a barium sulfate nanofibers-based dielectric separator for fast charging and high-safety lithium-ion battery 通过基于硫酸钡纳米纤维的电介质隔膜对石墨负极进行可逆锂电镀调节，实现快速充电和高安全性锂离子电池

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-16 DOI: 10.1016/j.jechem.2024.08.053

{"title":"Reversible Li plating regulation on graphite anode through a barium sulfate nanofibers-based dielectric separator for fast charging and high-safety lithium-ion battery","authors":"","doi":"10.1016/j.jechem.2024.08.053","DOIUrl":"10.1016/j.jechem.2024.08.053","url":null,"abstract":"<div><div>Poor Li plating reversibility and high thermal runaway risks are key challenges for fast charging lithium-ion batteries with graphite anodes. Herein, a dielectric and fire-resistant separator based on hybrid nanofibers of barium sulfate (BS) and bacterial cellulose (BC) is developed to synchronously enhance the battery’s fast charging and thermal-safety performances. The regulation mechanism of the dielectric BS/BC separator in enhancing the Li<sup>+</sup> ion transport and Li plating reversibility is revealed. (1) The Max-Wagner polarization electric field of the dielectric BS/BC separator can accelerate the desolvation of solvated Li<sup>+</sup> ions, enhancing their transport kinetics. (2) Moreover, due to the charge balancing effect, the dielectric BS/BC separator homogenizes the electric field/Li<sup>+</sup> ion flux at the graphite anode-separator interface, facilitating uniform Li plating and suppressing Li dendrite growth. Consequently, the fast-charge graphite anode with the BS/BC separator shows higher Coulombic efficiency (99.0% vs. 96.9%) and longer cycling lifespan (100 cycles vs. 59 cycles) than that with the polypropylene (PP) separator in the constant-lithiation cycling test at 2 mA cm<sup>−2</sup>. The high-loading LiFePO<sub>4</sub> (15.5 mg cm<sup>−2</sup>)//graphite (7.5 mg cm<sup>−2</sup>) full cell with the BS/BC separator exhibits excellent fast charging performance, retaining 70% of its capacity after 500 cycles at a high rate of 2C, which is significantly better than that of the cell with the PP separator (retaining only 27% of its capacity after 500 cycles). More importantly, the thermally stable BS/BC separator effectively elevates the critical temperature and reduces the heat release rate during thermal runaway, thereby significantly enhancing the battery’s safety.</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":"142571376","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

Bioinspired smart dual-layer hydrogels system with synchronous solar and thermal radiation modulation for energy-saving all-season temperature regulation 具有太阳能和热辐射同步调制功能的生物启发智能双层水凝胶系统，可实现节能型四季温度调节

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-11 DOI: 10.1016/j.jechem.2024.09.051

{"title":"Bioinspired smart dual-layer hydrogels system with synchronous solar and thermal radiation modulation for energy-saving all-season temperature regulation","authors":"","doi":"10.1016/j.jechem.2024.09.051","DOIUrl":"10.1016/j.jechem.2024.09.051","url":null,"abstract":"<div><div>All-season thermal management with zero energy consumption and emissions is more crucial to global decarbonization over traditional energy-intensive cooling/heating systems. However, the static single thermal management for cooling or heating fails to self-regulate the temperature in dynamic seasonal temperature condition. Herein, inspired by the dual-temperature regulation function of the fur color changes on the backs and abdomens of penguins, a smart thermal management composite hydrogel (PNA@H-PM Gel) system was subtly created though an “on-demand” dual-layer structure design strategy. The PNA@H-PM Gel system features synchronous solar and thermal radiation modulation as well as tunable phase transition temperatures to meet the variable seasonal thermal requirements and energy-saving demands via self-adaptive radiative cooling and solar heating regulation. Furthermore, this system demonstrates superb modulations of both the solar reflectance (Δ<em>R</em> = 0.74) and thermal emissivity (Δ<em>E</em> = 0.52) in response to ambient temperature changes, highlighting efficient temperature regulation with average radiative cooling and solar heating effects of 9.6 °C in summer and 6.1 °C in winter, respectively. Moreover, compared to standard building baselines, the PNA@H-PM Gel presents a more substantial energy-saving cooling/heating potentials for energy-efficient buildings across various regions and climates. This novel solution, inspired by penguins in the real world, will offer a fresh approach for producing intelligent, energy-saving thermal management materials, and serve for temperature regulation under dynamic climate conditions and even throughout all seasons.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142530529","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

A review of over-discharge protection through prelithiation in working lithium-ion batteries 工作锂离子电池中通过预锂化实现过放电保护的综述

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-10 DOI: 10.1016/j.jechem.2024.09.050

引用次数: 0

Exploring catalyst developments in heterogeneous CO2 hydrogenation to methanol and ethanol: A journey through reaction pathways 探索异相二氧化碳加氢制甲醇和乙醇的催化剂发展：反应路径之旅

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-10 DOI: 10.1016/j.jechem.2024.08.069

{"title":"Exploring catalyst developments in heterogeneous CO2 hydrogenation to methanol and ethanol: A journey through reaction pathways","authors":"","doi":"10.1016/j.jechem.2024.08.069","DOIUrl":"10.1016/j.jechem.2024.08.069","url":null,"abstract":"<div><div>The pursuit of alternative fuel generation technologies has gained momentum due to the diminishing reserves of fossil fuels and global warming from increased CO<sub>2</sub> emission. Among the proposed methods, the hydrogenation of CO<sub>2</sub> to produce marketable carbon-based products like methanol and ethanol is a practical approach that offers great potential to reduce CO<sub>2</sub> emissions. Although significant volumes of methanol are currently produced from CO<sub>2</sub>, developing highly efficient and stable catalysts is crucial for further enhancing conversion and selectivity, thereby reducing process costs. An in-depth examination of the differences and similarities in the reaction pathways for methanol and ethanol production highlights the key factors that drive C–C coupling. Identifying these factors guides us toward developing more effective catalysts for ethanol synthesis. In this paper, we explore how different catalysts, through the production of various intermediates, can initiate the synthesis of methanol or ethanol. The catalytic mechanisms proposed by spectroscopic techniques and theoretical calculations, including operando X-ray methods, FTIR analysis, and DFT calculations, are summarized and presented. The following discussion explores the structural properties and composition of catalysts that influence C–C coupling and optimize the conversion rate of CO<sub>2</sub> into ethanol. Lastly, the review examines recent catalysts employed for selective methanol and ethanol production, focusing on single-atom catalysts.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Understanding the iodine electrochemical behaviors in aqueous zinc batteries 了解锌水电池中的碘电化学行为

IF 13.1 1区化学

Journal of Energy Chemistry Pub Date : 2024-10-05 DOI: 10.1016/j.jechem.2024.09.049

{"title":"Understanding the iodine electrochemical behaviors in aqueous zinc batteries","authors":"","doi":"10.1016/j.jechem.2024.09.049","DOIUrl":"10.1016/j.jechem.2024.09.049","url":null,"abstract":"<div><div>Iodine is widely used in aqueous zinc batteries (ZBs) due to its abundant resources, low cost, and active redox reactions. In addition to the active material in zinc-iodine batteries, iodine also plays an important role in other ZBs, such as regulating the electrochemical behavior of zinc ions, promoting the reaction kinetic and reversibility of other redox pairs, catalytic behaviors related to iodine reactions, coupling with other halogen ions, shuttle behaviors of polyiodides, etc. However, there is currently a lack of comprehensive discussion on these aspects. Here, this review provides a comprehensive overview of the electrochemical behaviors of iodide in the aqueous ZBs. The effect of iodine ions on the Zn<sup>2+</sup> desolvation behaviors and the interfacial behaviors of Zn anode was summarized. Iodine redox pairs boosting other redox pairs, such as MnO<sub>2</sub>/Mn<sup>2+</sup> redox pair and vanadium redox pair to obtain high reversibility and capacity was also discussed. Moreover, the catalytic behaviors related to iodine reactions in aqueous ZBs, synergistic reaction with other halogen ions and suppression of shuttle behaviors for high performance zinc-iodine batteries were systematically analyzed. Finally, future prospects for designing effective iodine electrochemical behaviors with practicability are proposed, which will provide scientific guidance for the practical application of iodine-related aqueous ZBs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":null,"pages":null},"PeriodicalIF":13.1,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552554","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