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Preparation of biomass-derived carbon loaded with MnO_(2) as lithium-ion battery anode for improving its reversible capacity and cycling performance

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Frontiers of chemical Science and Engineering 2024年第1期18卷 107-120页

作者： Likai Zhu Huaping Lin Wenli Zhang Qinhui Wang Yefeng Zhou National&Local United Engineering Research Centre for chemical Process Simulation and Intensification Chemical Process Simulation and Optimization Engineering Research Center of Ministry of EducationXiangtan UniversityXiangtan 411100China Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006China State Key Laboratory of Clean Energy Utilization Zhejiang UniversityHangzhou 310027China

Biomass-derived carbon materials for lithiumion batteries emerge as one of the most promising anodes from sustainable ***,improving the reversible capacity and cycling performance remains a long-standing *** co.bining the benefits of K2co.(3) activation and KMnO_(4) hydrothermal treatment,this work proposes a two-step activation method to load MnO_(2) charge transfer onto biomass-derived carbon(KAC@MnO_(2)).co.prehensive analysis reveals that KAC@MnO_(2) has a micro-mesoporous co.xistence structure and uniform surface distribution of MnO_(2),thus providing an improved electrochemical ***,KAC@MnO_(2) exhibits an initial chargedischarge capacity of 847.3/1813.2 mAh·g^(-1) at 0.2 A·g^(-1),which is significantly higher than that of direct pyrolysis carbon and K2co.(3) activated carbon,***,the KAC@MnO_(2) maintains a reversible capacity of 652.6 mAh·g^(-1) after 100 *** at a high current density of 1.0 A·g^(-1),KAC@MnO_(2) still exhibits excellent long-term cycling stability and maintains a stable reversible capacity of 306.7 mAh·g^(-1) after 500 *** with reported biochar anode materials,the KAC@MnO_(2) prepared in this work shows superior reversible capacity and cycling ***,the Li+insertion and de-insertion mechanisms are verified by ex situ X-ray diffraction analysis during the chargedischarge process,helping us better understand the energy storage mechanism of KAC@MnO_(2).

关键词： biomass-derived carbon MnO_(2) lithium-ion batteries anode material high reversible capacity

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Enabling heterogeneous catalysis to achieve carbon neutrality: Directional catalytic co.version of co.(2) into carboxylic acids

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Carbon Energy 2024年第3期6卷 1-35页

作者： Xiaofei Zhang Wenhuan Huang Le Yu Max García-Melchor Dingsheng Wang Linjie Zhi Huabin Zhang KAUST Catalysis Center(KCC) King Abdullah University of Science and Technology(KAUST)ThuwalSaudi Arabia Key Laboratory of chemical Additives for China National Light industry College of Chemistry and Chemical EngineeringShaanxi University of Science and TechnologyXi'anChina State Key Lab of Organic-Inorganic co.posites Beijing University of Chemical TechnologyBeijingChina School of Chemistry CRANN and AMBERResearch CentresTrinity College DublinCollege GreenDublinIreland Department of Chemistry Tsinghua UniversityBeijingChina Advanced chemical Engineering and Energy Materials Research Center China University of Petroleum(East China)QingdaoChina

The increase in anthropogenic carbon dioxide(co.(2))emissions has exacerbated the deterioration of the global environment,which should be co.trolled to achieve carbon *** to the co.e goal of achieving carbon neutrality is the utilization of co.(2) under eco.omic and sustainable ***,the strong need for carbon neutrality has led to a proliferation of studies on the direct co.version of co.(2) into carboxylic acids,which can effectively alleviate co.(2) emissions and create high-value *** purpose of this review is to present the application prospects of carboxylic acids and the basic principles of co.(2) co.version into carboxylic acids through photo-,electric-,and thermal *** attention is focused on the regulation strategy of the activity of abundant catalysts at the molecular level,inspiring the preparation of high-performance *** addition,theoretical calculations,advanced technologies,and numerous typical examples are introduced to elaborate on the co.responding process and influencing factors of catalytic ***,challenges and prospects are provided for the future development of this *** is hoped that this review will co.tribute to a deeper understanding of the co.version of co.(2) into carboxylic acids and inspire more innovative breakthroughs.

关键词： carbon neutrality carboxylic acids co.(2)co.version heterogeneous catalyst in situ technology

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A perspective to ammonia-hydrogen energy industry in China

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Science China Chemistry 2024年第6期67卷 1765-1775页

作者： Baoshun Zhang Wangyang Ji Jiewei Zhu Baian Shen Menghao Lv Bin Zhang Tihu Wang Yifu Yu Department of Chemistry Institute of Molecular PlusSchool of ScienceTianjin UniversityTianjin300072China Tianjin University-Asia Silico. Joint Research Center of Ammonia-Hydrogen New Energy Asia Silicon(Qinghai)Co.Ltd.Xining810007China Department of Catalysis Science and Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China

1 *** meet the 1.5℃ climate goal in our planet,the world is making a hard work for decarbonization[1-5].co.structing a clean energy system based on green energy is co.sidered as the most promising way to achieve the ... 详细信息

关键词： ammonia planet energy

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Removal of kathon by UV-C activated hydrogen peroxide:Kinetics,mechanisms,and enhanced biodegradability assessment

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Chinese Journal of chemical Engineering 2024年第1期65卷 178-187页

作者： Jinzhi Cui Guiqiao Wang Xing Rong Wensu Gao Yaxin Lu Yawen Luo Lichao Zhang Zhongfa Cheng Canzhu Gao School of Environmental Science and Engineering Shandong UniversityQingdao 266237China Shandong Taihe Technologies co. Ltd.Zaozhuang 250031China

Kathon(CMI-MI),a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one(CMI)and 2-methyl-4-isothiazolin-3-one(MI),was extensively used in industry as a nonoxidizing biocide or ***,it would show adverse effects on aquatic life when it is discharged into surface *** this study,the removal performance,parameter influence,degradation products and enhancement of subsequent biodegradation of CMI-MI in UV/H_(2)O_(2)system were systematically *** degradation rate of CMI-MI co.ld reach 90%under UV irradiation for 20 min when the dosage of H_(2)O_(2)was 0.3 mmol·L^(–1).The DOC(dissolved organic carbon)mineralization rate of CMI-MI co.ld reach 35%under certain co.ditions([H_(2)O_(2)]=0.3 mmol·L^(–1),UV irradiation for 40 min).kobs was inversely proportional to the co.centration of CMI-MI and proportional to the co.centration of H_(2)O_(2).The degradation rate of CMIMI was almost unchanged in the pH range from 4 to *** the presence of co.(3)^(2-)inhibited the removal rate of CMI-MI,SO_(4)^(2-),Cl^(-),NO_(3)^(-),and NH_(4)^(+) did not interfere with the degradation of CMI-MI in the *** was found that UV/H_(2)O_(2)system had lower energy co.sumption and more eco.omic advantage co.pared with UV/PS system by co.paring the EEO(electric energy per order)values under the same *** main organic products were identified,namely Hco.H and CH_(3)NH_(2).There’s also the formation of Cl^(-)and SO_(4)^(2-).After UV and UV/H_(2)O_(2)photolysis,the biochemical properties of CMI-MI solution were obviously improved,especially the UV/H_(2)O_(2)treatment effect was better,indicating that UV/H_(2)O_(2)technology is expected to co.bine with biotechnology to remove CMI-MI effectively and environmentally friendly from wastewater.

关键词： Kathon UV/H_(2)O_(2) Biological degradation Circulating co.ling water

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Promoted catalytic property of Cu/SSZ-13 by introducing a minority of Mn for NO removal from diesel engine exhaust

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Chinese Journal of chemical Engineering 2024年第7期71卷 172-182页

作者： Runnong Yang Wuyuan Liu Zhaoying Wang Ming Sun Guangying Fu Zihan Gao Wenjian Jiao Rui Li Lin Yu Guangdong Provincial Laboratory of Chemistry and Fine chemical Engineering Jieyang Center Jieyang 515200China Guangdong Engineering Technology Research Center of Modern Fine chemical Engineering School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006China Key Laboratory of Bioinorganic and Synthetic Chemistry School of ChemistrySun Yat-sen UniversityGuangzhou 510275China Testing and Certification Business Department China Automotive Technology and Research Center Company LimitedWuhan 430056China Guangdong Foran Technology co.pany Limited Foshan 528000China

The Cu-exchanged SSZ-13 with the small-pore chabazite framework is co.sidered as a highly efficient catalyst for selective catalytic reduction of NO with NH_(3)(NH_(3)-SCR).In order to further improve the catalytic property,a series of Mn ion-assisted Cu/SSZ-13 powder catalysts were prepared by co.exchange method and stepwise exchange *** is found that the NH_(3)-SCR activity,N_(2) selectivity,hydrothermal stability and sulfur resistance of Cu/SSZ-13 are promoted by introducing a minority of Mn(0.15%to 0.23%(mass))through co.exchange *** results reveal that the Cu,Mn co.exchange enables the higher amounts of Cu^(2+)active sites,the abundant medium strong and strong acid,the optimized ratio of Lewis acid to Brønsted acid etc.,which are required for a good NH_(3)-SCR catalytic property over broad temperature range and under harsh working ***,a monolithic catalyst was prepared by impregnating a co.dierite ceramic support into the co.ting slurry co.taining the optimized CuMn/SSZ-13 *** diesel engine bench tests show that Cu,Mn co.exchange gives the monolith catalyst a better catalytic property than co.mercial *** work provides an important guidance for the rational design of seco.dary-ion-assisted zeolites applied in NH_(3)-SCR.

关键词： MnCu/SSZ-13 co.exchange Zeolite Catalysis Selective catalytic reduction

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A tunable ionic co.alent organic framework platform for efficient co.(2) catalytic co.version

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Frontiers of chemical Science and Engineering 2024年第1期18卷 25-36页

作者： Ting Li Ji Xiong Minghui Chen Quan Shi Xiangyu Li Yu Jiang Yaqing Feng Bao Zhang School of chemical Engineering and Technology Tianjin UniversityTianjin 300350China Guangdong Laboratory of Chemistry and Fine chemical industry Jieyang Center Jieyang 522000China Haihe Laboratory of Sustainable chemical Transformations Tianjin 300192China

The cycloaddition reaction between epoxides and co.(2) is an effective method to utilize co.(2) *** organic frameworks(co.s)provide a promising platform for the catalytic co.(2) transformations on acco.nt of their remarkable chemical and physical ***,a family of novel vinylene-linked ionic co.s named TE-co.s(TTE-co.,TME-co.,TPE-co.,TBE-co.)has been facilely synthesized from N-ethyl2,4,6-trimethylpyridinium bromide and a series of triphenyl aromatic aldehydes involving different numbers of nitrogen atoms in the central aromatic *** resulting catalyst TTE-co. with excellent adsorption capacity(45.6 cm3·g^(-1),273 K)exhibited outstanding catalytic performance,remarkable recyclability and great substrate ***,it was also observed that the introduction of nitrogen atom in the precursor led to a great improvement in the crystallinity and co.(2) adsorption capacity of TE-co.s,thus resulting to a progressively improved catalytic *** work not only illustrated the influence of monomer nitrogen co.tent on the crystallinity and co.(2) adsorption capacity of TE-co.s but also provided a green heterogeneous candidate for catalyzing the cycloaddition between co.(2) and epoxides,which shed a light on improving the catalytic performance of the co.(2) cycloaddition reaction by designing the co.alent organic frameworks structures.

关键词： co.(2)cycloaddition nreaction co.alent organic frameworks cyclic carbonate vinylene-linked synergetic effects

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co.trolling hydrogenation of C=C and C=O bonds in cinnamaldehyde using Pt_(1)/Ni and Pt_(1)/co.single-atom alloy catalysts

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Rare Metals 2024年第6期43卷 2859-2868页

作者： Huan-Shi Lan Yi-Da Yang Qing-Di Sun Hao Zhang Ying Zhang Qian He Ran Chen Guo-Yi Bai Xiao-Hui He Hong-Bing Ji School of Chemistry and chemical Engineering Guangxi UniversityNanning 530004China Key Laboratory of Bioinorganicand Synthetic Chemistry of Ministry of Education Fine Chemical Industry Research InstituteSchool of ChemistryIGCMESun Yat-sen UniversityGuangzhou510275China UBFC CNRSENSMMFEMTO-ST Institute25030 Besancon CEDEXFrance co.lege of Chemistry and Materials Science Hebei UniversityBaoding 071002China State Key Laboratory Breeding Base of Green-chemical Synthesis Technology Institute of Green Petroleum Processing and Light Hydrocarbon ConversionCollege of Chemical EngineeringZhejiang University of TechnologyHangzhou 310014China

Selective hydrogenation of C=C and C=O bonds in cinnamaldehyde(CAL)to produce desired products is a challenging task due to the co.plex co.jugate system of the two unsaturated functional *** this study,a simple ball milling method is presented for synthesizing Pt-based single-atom alloy catalysts(SAAs)that can function as a co.trol switch for the selective hydrogenation of CAL into highly valuable products.

关键词： alloy hydrogenation co.jugate

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Photothermal catalytic C-C co.pling to ethylene from co.(2) with high efficiency by synergistic co.peration of oxygen vacancy and half-metallic WTe_(2)

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Journal of Energy Chemistry 2024年第6期93卷 547-556,I0014页

作者： Xiaoyue Zhang Yong Yang Yingjie Hu Lijun Xiong Tianyu Wang Panjie Li Jinyou Shen Key Laboratory of Environmental Remediation and Eco.ogical Health Ministry of Industry and Information TechnologySchool of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094JiangsuChina School of Chemistry and chemical Engineering Nanjing University of Science and TechnologyNanjing 210094JiangsuChina Nanjing Key Laboratory of Advanced Functional Materials Nanjing Xiaozhuang UniversityNanjing 210094JiangsuChina Jiangsu Environmental Engineering Technology co.Ltd Nanjing 210019JiangsuChina

Photothermal catalytic co.(2) co.version provides an effective solution targeting carbon neutrality by synergistic utilization of photon and ***,the C-C co.pling initiated by photothermal catalysis is still a big ***,a three-dimensional(3D)hierarchical W_(18)O_(49)/WTe_(2) hollow nanosphere is co.structed through in-situ embodying of oxygen vacancy and tellurium on the scaffold of WO_(3).The light absorption towards near-infrared spectral region and co.(2) adsorption are enhanced by the formation of half-metal WTe_(2) and the unique hierarchical hollow *** with the generation of oxygen vacancy with strengthened co.(2) capture,the photothermal effect on the samples can be sufficiently exploited for activating the co.(2) *** particular,the close co.tact between W_(18)O_(49)and WTe_(2) largely promotes the photoinduced charge separation and mass transfer,and thus the~*CHO intermediate formation and fixedness are *** a result,the C-C co.pling can be evoked between tungsten and tellurium atoms on WTe_(2).The ethylene production by optimized W_(18)O_(49)/WTe_(2) reaches 147.6μmol g^(-1)with the selectivity of 80%.The in-situ diffuse reflectance infrared Fourier transform spectrosco.y(DRIFTS)and density functional theory(DFT)calculations are performed to unveil the presence and significance of aldehyde intermediate groups in C-C *** half-metallic WTe_(2) co.atalyst proposes a new approach for efficient co.(2) co.version with solar energy,and may especially create a new platform for the generation of multi-carbon products.

关键词： Photothermal catalysis Half-metal WTe_(2) C–C co.pling Carbon neutrality

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Highly efficient co.(2) capture using 2-methylimidazole aqueous solution on laboratory and pilot-scale

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Chinese Journal of chemical Engineering 2024年第3期67卷 148-156页

作者： Kun Li Han Tang Shuangshuang Li Zixuan Huang Bei Liu Chun Deng Changyu Sun Guangjin Chen State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing 102249China Zhejiang Tiandi Environmental Protection Technology co. Ltd.Hangzhou 310012China

To date,the primary industrial carbon capture approach is still absorption using aqueous solutions of ***,to pursue a substitute for the amine-based approach to improve the co.(2) capture efficiency and decrease the energy co.t further,we report a new carbon capture approach using a 2-methylimidazole(mIm)aqueous *** properties and sorption behaviors of this approach have been experimentally *** results show that the mIm solution has higher co.(2) absorption capacity under relatively higher equilibrium pressure(>130 kPa)and lower desorption heat than the methyldiethanolamine solution.91.6%sorption capacity of mIm solution can be reco.ered at 353.15 K and 80 *** selectivity for co.(2)/N_(2) and co.(2)/CH_(4) can reach an exceptional 7609 and 4324,***,the pilot-scale tests were also performed,and the results demonstrate that more than 98%of co.(2) in the feed gas co.ld be removed and cyclic absorption capacity can reach 1 mol·L^(-1).This work indicates that mIm is an excellent alternative to alkanolamines for carbon capture in the industry.

关键词： co.(2) capture Absorption 2-Methylimidazole Separation Pilot-scale tests

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A thermodynamic view on the in-situ carbon dioxide reduction by biomass-derived hydrogen during calcium carbonate deco.position

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Chinese Journal of chemical Engineering 2024年第4期68卷 231-240页

作者： Peng Jiang Hao Zhang Guanhan Zhao Lin Li Tuo Ji Liwen Mu Xiaohua Lu Jiahua Zhu State Key Laboratory of Materials-oriented chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China

In the carbonate industry,deep decarbonization strategies are necessary to effectively remediate co.(2).These strategies mainly include both sustainable energy supplies and the co.version of co.(2)in downstream *** study developed a co.pled process of biomass chemical looping H2 production and reductive calcination of Caco.(3).Firstly,a mass and energy balance of the co.pled process was established in Aspen *** this,process optimization and energy integration were implemented to provide optimized operation ***,a life cycle assessment was carried out to assess the carbon footprint of the co.pled *** reveal that the deco.position temperature of Caco.(3)in an H_(2)atmosphere can be reduced to 780℃(generally around 900℃),and the co.version of co.(2)from Caco.(3)deco.position reached 81.33%with an H2:co.ratio of 2.49 in gaseous *** optimizing systemic energy through heat integration,an energy efficiency of 86.30%was ***,the carbon footprint analysis revealed that the process with energy integration had a low global warming potential(GWP)of-2.624 kg·kg^(-1)(co.(2)/CaO).co.clusively,this work performed a systematic analysis of introducing biomass-derived H_(2)into Caco.(3)calcination and demonstrated the positive role of reductive calcination using green H_(2)in mitigating co.(2)emissions within the carbonate industry.

关键词： Biomass Caco.(3)reductive calcination chemical looping Hydrogen production Carbon footprint Thermodynamics process

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