EnergyChem最新文献

{"title":"Donor-acceptor-based conjugated polymers for photocatalytic energy conversion","authors":"Chao Yang ,&nbsp;Bei Cheng ,&nbsp;Jingsan Xu ,&nbsp;Jiaguo Yu ,&nbsp;Shaowen Cao","doi":"10.1016/j.enchem.2023.100116","DOIUrl":"10.1016/j.enchem.2023.100116","url":null,"abstract":"<div><p>Photocatalytic solar-to-chemical energy conversion is deemed to be a promising, eco-friendly, and low-energy input strategy for addressing the energy crisis. Donor−acceptor (D−A) conjugated polymers (CPs) have recently emerged as the hub in photocatalysis due to their charming properties, such as variable molecular structure, accessible functionalization, tunable electronic band structure, and versatile synthetic approaches. These features enable D−A-based CPs to be a potential alternative for conventional inorganic photocatalysts. Currently, researchers are making great efforts to design highly-efficient D−A-based CPs for adaptable photocatalytic reactions. In this review, the development, classification, and common synthetic strategies of D−A-based CPs are introduced. The recent progress of D−A-based CPs in photocatalytic energy conversion is systematically summarized, including photocatalytic H₂ evolution, O₂ evolution, overall water splitting, CO₂ reduction, H₂O₂ production, and organic transformation. Meanwhile, the impacts of molecular/electronic structure and morphology of D−A-based CPs on light-harvesting capacity, exciton dissociation, and interfacial reaction during the photo-redox reactions are clarified. Finally, the conclusions and future challenges for photocatalytic energy conversion over D−A-based CPs are provided. This review is expected to offer an in-depth and comprehensive understanding of photocatalytic energy conversion in the aspect of mechanism, as well as to stimulate inspiration for designing D−A-based CP photocatalysts with surpassing efficiency.</p></div>","PeriodicalId":307,"journal":{"name":"EnergyChem","volume":"6 1","pages":"Article 100116"},"PeriodicalIF":25.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138532793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Elevated temperature adsorbents for separation applications","authors":"Shuang Li ,&nbsp;Xuancan Zhu ,&nbsp;Dongdong Wang ,&nbsp;Peixuan Hao ,&nbsp;Fangzhe Zhou ,&nbsp;Yixiang Shi ,&nbsp;Ruzhu Wang ,&nbsp;Ningsheng Cai","doi":"10.1016/j.enchem.2023.100113","DOIUrl":"https://doi.org/10.1016/j.enchem.2023.100113","url":null,"abstract":"<div><p>Elevated-temperature adsorptive separation involves the selective and rapid adsorption of gas molecules on weakly bonding chemical sites of an adsorbent at elevated temperatures (80–500 °C) and the reversible desorption of the gas molecules at a low cost. It is a significant step in several reactions, such as pre-combustion carbon capture, indirect/direct hydrogen production, ammonia separation, oxygen production from air, and carbon monoxide enrichment. This purification strategy avoids sensible heat loss of the feed gas, heat regeneration, accelerates adsorption kinetics, and can sometimes couple catalysts to achieve sorption-enhanced reactions. Before commercializing elevated-temperature adsorptive separation technologies, highly efficient syntheses for obtaining elevated-temperature-responsive adsorbents are required; competitive adsorption, interactions with gas impurities, and poisoning mechanisms need to be well understood; specific adsorption reactors and processes should also be designed. Therefore, this review covers the key progress made in terms of material design and synthesis, adsorption kinetic models and mechanisms, process design and optimization, as well as system integration for elevated-temperature adsorptive separation. This review will be valuable for the clean fossil-fuel utilization community, as well as energy and chemical industries.</p></div>","PeriodicalId":307,"journal":{"name":"EnergyChem","volume":"5 6","pages":"Article 100113"},"PeriodicalIF":25.1,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138480405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MXenes as conductive and mechanical additives in energy storage devices","authors":"Linfan Cui ,&nbsp;Chuanfang (John) Zhang","doi":"10.1016/j.enchem.2023.100110","DOIUrl":"10.1016/j.enchem.2023.100110","url":null,"abstract":"<div><p>Two-dimensional (2D) transition metal carbides and/or nitrides, known as MXenes, are promising building blocks in energy storage devices and other applications. In particular, the 2D morphology, high aspect ratio coupled with the metallic conductivity and distinguished Youngs modulus open up intriguing opportunities for MXenes to assemble electrodes, decorate electrolyte or separator with enhanced stability and performances. Understanding the correlations between these physical properties of MXenes and the required functions in supercapacitor and batteries are of great importance. In this review, we discuss the critical roles of MXene components in the electrode architecture, particularly through the viewpoints of conductive electrode host and mechanically additive binders to enhance the electron transfer and structural stability. MXenes as mechanical reinforcement phases in electrolyte and separator materials are also highlighted. Finally, we conclude the challenges and future perspectives of MXenes in advanced energy storage applications.</p></div>","PeriodicalId":307,"journal":{"name":"EnergyChem","volume":"5 6","pages":"Article 100110"},"PeriodicalIF":25.1,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135514674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applications and theory investigation of two-dimensional boron nitride nanomaterials in energy catalysis and storage","authors":"Huanhuan Zhang ,&nbsp;Yanyan Liu ,&nbsp;Kang Sun ,&nbsp;Shuqi Li ,&nbsp;Jingjing Zhou ,&nbsp;Shuling Liu ,&nbsp;Huijuan Wei ,&nbsp;Baozhong Liu ,&nbsp;Lixia Xie ,&nbsp;Baojun Li ,&nbsp;Jianchun Jiang","doi":"10.1016/j.enchem.2023.100108","DOIUrl":"10.1016/j.enchem.2023.100108","url":null,"abstract":"<div><p>Energy catalysis and storage are the key technologies to solve energy and environmental problems in energy systems. Two-dimensional (2D) boron nitride nanomaterials have aroused a great interest in the synthesis and application because of their unique 2D nature, large band gap, metal-free characteristic, high thermal/mechanical stability, and easy accessibility. The composition and coordination determine the geometric and electronic structures of boron nitride nanosheet and greatly influence the catalytic performance in numerous important reactions. The reviews with close relation on the aspect the comprehensive analysis of boron nitride nanosheet used for energy conversion and storage have expansive research space in the field of catalysis. Herein, this review narrates the physicochemical properties of boron nitride nanomaterials and summarizes the synthetic strategies of various boron nitride nanosheets in detail. Keystone is concentrated on the rational design, applied actuality and developing prospect of boron nitride nanomaterials. The abundant applications in energy catalysis and storage including electrocatalysis, photocatalysis, catalytic de/re-hydrogenation, chemo-catalytic hydrogen generation, rechargeable battery and supercapacitors were investigated. Furthermore, corresponding practical application are also studied in this review. Illustratively, the structure characterization, mechanism insights, the current challenges and potential applications of boron nitride-based materials for energy catalysis and storage are minutely discussed.</p></div>","PeriodicalId":307,"journal":{"name":"EnergyChem","volume":"5 6","pages":"Article 100108"},"PeriodicalIF":25.1,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135851466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insight into the active sites of M–N–C single-atom catalysts for electrochemical CO2 reduction","authors":"Qin Pan ,&nbsp;Yang Chen ,&nbsp;Shuoshuo Jiang ,&nbsp;Xin Cui ,&nbsp;Guanghuan Ma ,&nbsp;Tianyi Ma","doi":"10.1016/j.enchem.2023.100114","DOIUrl":"https://doi.org/10.1016/j.enchem.2023.100114","url":null,"abstract":"<div><p>Electrochemical carbon dioxide reduction (CO₂RR) to chemicals and fuels is a promising way to alleviate global environmental problems and energy issues. Among the various catalysts, metal-nitrogen-carbon (M–N–C) single-atom catalysts (SACs) have intrigued great excitement in catalysis due to their low cost and high efficiency. However, precisely identifying the active site structure at an atomic level and disclosing the structure-performance relationship remains a grand challenge. In this review, the active structures of the M–N–C catalysts in CO₂RR are first summarized, including isolated metal-N<em>_x</em> (<em>x</em> = 2, 3, 4, 5) sites, dual-metal centers, and the crucial role of substrates. Subsequently, the role of active structure in changing the adsorption properties of reactants toward CO₂RR is discussed. In particular, the structure-performance relationship and constructive strategies to optimize the CO₂RR pathway are highlighted. Finally, challenges and potential outlooks for the development of M–N–C SACs toward CO₂RR are presented.</p></div>","PeriodicalId":307,"journal":{"name":"EnergyChem","volume":"5 6","pages":"Article 100114"},"PeriodicalIF":25.1,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589778023000179/pdfft?md5=c5cf2f867c8eeaea2ceb279824979d67&pid=1-s2.0-S2589778023000179-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138480406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microenvironment effect of covalent organic frameworks on chemical catalysis","authors":"Qingyan Pan ,&nbsp;Zepeng Lei ,&nbsp;Yingjie Zhao ,&nbsp;Wei Zhang","doi":"10.1016/j.enchem.2023.100107","DOIUrl":"10.1016/j.enchem.2023.100107","url":null,"abstract":"<div><p>Inspired by enzymatic catalysis, a variety of covalent organic frameworks (COFs), which have precisely engineered microenvironments enabled by the well-defined porous channels and cavities with catalytically active sites built in, have been developed to mimic the catalytic process of enzymes. The structure diversity and customizability of COFs make them an ideal platform for studying the catalyst structure-activity relationship in heterogeneous catalysis and obtaining a thorough understanding of the catalytic mechanisms. In this review, we summarize the recent progress in the development of COF materials for catalysis applications, with a particular focus on their microenvironment effects. Representative examples of organocatalysis, asymmetric organocatalysis, and metal-supported catalysis utilizing the microenvironment effect enabled by diversified COF materials are discussed. Finally, we outline the key fundamental issues to be addressed and provide our perspectives on the future of COF-based catalysis.</p></div>","PeriodicalId":307,"journal":{"name":"EnergyChem","volume":"5 6","pages":"Article 100107"},"PeriodicalIF":25.1,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135707810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Killing two birds with one stone: State-of-the-art progress in dual-functional photoredox catalysis for solar fuel conversion and selective organic transformation","authors":"Feng Niu ,&nbsp;Wenguang Tu ,&nbsp;Yong Zhou ,&nbsp;Rong Xu ,&nbsp;Zhigang Zou","doi":"10.1016/j.enchem.2023.100112","DOIUrl":"https://doi.org/10.1016/j.enchem.2023.100112","url":null,"abstract":"<div><p>Using solar energy to couple the photoinduced reductive half-reaction with a matched oxidative half-reaction has received increasing attention in recent years. Such a process represents an alternative artificial photosynthetic route for energy storage and chemical synthesis, like killing two birds with one stone. This review article concisely summarizes and highlights the state-of-the-art progresses of semiconductor-based dual-functional photoredox catalysis that couples the reductive half-reaction such as the proton (H⁺) reduction into H₂, CO₂ reduction, and O₂ reduction to H₂O₂ with a matched oxidative organic transformation reaction including alcohol oxidation, C-C/-C-O coupling, -C-N coupling, biomass or plastics photoreforming, and other reactions, which can make full use of the electrons and holes generated from the semiconductors to realize the solar fuel conversion and selective organic transformation into valuable chemicals simultaneously. The challenges and prospects for future development of semiconductor-based dual-functional photoredox catalysis are also presented.</p></div>","PeriodicalId":307,"journal":{"name":"EnergyChem","volume":"5 6","pages":"Article 100112"},"PeriodicalIF":25.1,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138480404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Paired electrosynthesis design strategy for sustainable CO2 conversion and product upgrading","authors":"Mengyao Gong ,&nbsp;Changsheng Cao ,&nbsp;Qi-Long Zhu","doi":"10.1016/j.enchem.2023.100111","DOIUrl":"10.1016/j.enchem.2023.100111","url":null,"abstract":"<div><p>CO₂ electrolysis technology powered by renewable electricity is a sustainable strategy to reduce anthropogenic carbon emissions while producing valuable chemicals. Unfortunately, compared with CO₂ reduction reaction (CO₂RR) in cathode, the sluggish-kinetics and low value-added product (<em>i.e.</em>, O₂) of anodic oxygen evolution reaction (OER) during CO₂ electrolysis will seriously drag down the whole efficiency and economic benefits. Alternatively, replacing OER with some thermodynamically more favorable oxidation reactions is promising to reduce energy input while producing high value-added products. Therefore, coupling CO₂RR with these oxidation reactions to construct paired electrosynthesis systems is more meaningful for future applications, which has gained some far-reaching achievements in recent years. In this review, we summarize recent progress in construction of paired electrosynthesis systems involving CO₂RR and propose possible future research directions. We start with fundamentals about traditional CO₂ electrolysis. Then we propose the definition and classification of paired electrolysis, especially those involving CO₂RR. Subsequently, we emphatically discuss the selection of various oxidation reactions coupled with CO₂RR in the proposed paired electrolysis systems. Finally, from our point of view, the current challenges and corresponding perspectives on the development of paired electrolysis involving CO₂RR are presented to inspire possible future research directions.</p></div>","PeriodicalId":307,"journal":{"name":"EnergyChem","volume":"5 6","pages":"Article 100111"},"PeriodicalIF":25.1,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135614475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-powered triboelectric functional devices and microsystems in health-care applications: An energy perspective","authors":"Keren Dai ,&nbsp;Zheng-Yang Huo ,&nbsp;Xuyi Miao ,&nbsp;Peixun Xiong ,&nbsp;He Zhang ,&nbsp;Xiaofeng Wang ,&nbsp;Zheng You ,&nbsp;Sang-Woo Kim","doi":"10.1016/j.enchem.2023.100109","DOIUrl":"10.1016/j.enchem.2023.100109","url":null,"abstract":"<div><p>Health care is one of the most promising applications for triboelectric nanogenerators (TENGs). In this review, we summarize recent advances in the three most popular health care-related applications of TENGs: microbial disinfection, interventional therapy and implantable microsystems. Furthermore, we discuss the evolution of important common technologies of TENGs in these three applications, which covers energy harvesting, energy storage and energy-efficient functional design. For these three promising applications, this paper explores their future technical roadmap and reveals a trend towards smaller, stronger, more effective and more controllable triboelectric devices and systems.</p></div>","PeriodicalId":307,"journal":{"name":"EnergyChem","volume":"5 6","pages":"Article 100109"},"PeriodicalIF":25.1,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136127762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low-dose transmission electron microscopy study on halide perovskites: Application and challenges","authors":"Libing Yao ,&nbsp;Liuwen Tian ,&nbsp;Shaochen Zhang ,&nbsp;Yuan Tian ,&nbsp;Jingjing Xue ,&nbsp;Siying Peng ,&nbsp;Rui Wang","doi":"10.1016/j.enchem.2023.100105","DOIUrl":"https://doi.org/10.1016/j.enchem.2023.100105","url":null,"abstract":"<div><p>Transmission electron microscopy (TEM) is widely used in the materials science community because of its high spatial, temporal and energy resolution. However, for electron beam-sensitive halide perovskites (HPs), the achievements offered by TEM are still in their infancy due to the nonnegligible structural damage caused by the incident electron beams to the fragile structure. Despite these challenges, the potential for TEM to provide unique insights into the microstructure and phase evolution of HPs at the atomic scale, to track the dynamic ion migration behaviors, and to explore the effects of lattice defects on physicochemical properties is still fascinating. In this review, we summarize recent achievements in HPs through advanced analytical methods embedded in the TEM, including high-resolution/scanning TEM (HRTEM/STEM) imaging, electron diffraction (ED) analysis, X-ray energy dispersive spectroscopy (EDS), and electron energy-loss spectroscopy (EELS) measurement, and <em>in-situ</em> TEM observation, with the aim of providing a multi-dimensional and multi-scale understanding of the intrinsic properties of HPs that have not yet been discovered. In addition, we delve into the inherent beam-damage mechanisms affecting the delicate HPs crystal, thereby emphasizing the significant hurdles associated with employing TEM in HPs research. Finally, we present a number of effective strategies that may be beneficial in reducing the damage caused by beams. In particular, the introduction of a direct-detection electron-counting (DDEC) camera has contributed significantly to the advancement of low-dose imaging and the suppression of beam damage to the intrinsic structure of HPs. With the improvement of low-dose imaging technology, TEM characterization is expected to promote a comprehensive understanding of the intrinsic properties of HPs in terms of structure-property-performance and to expand the wide range of applications of HPs in optoelectronic devices.</p></div>","PeriodicalId":307,"journal":{"name":"EnergyChem","volume":"5 5","pages":"Article 100105"},"PeriodicalIF":25.1,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6713502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}