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Interface challenges and optimization strategies for aqueous zinc-ion batteries

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Journal of Energy Chemistry 2023年第2期77卷 642-659,I0016页

作者： hanwen liu Qianqin Zhou Qingbing Xia Yaojie Lei Xiang Long Huang Mike Tebyetekerwa Xiu Song Zhao School of Chemical Engineering The University of QueenslandSt LuciaBrisbaneQLD 4072Australia Institute for Superconducting and Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongInnovation CampusSquires WayNorth WollongongNew South Wales 2500Australia

Aqueous zinc-ion batteries have advantages over lithium-ion batteries,such as low cost,and good ***,their development is currently facing several *** of the main critical challenges is their poor electrode–electrolyte *** this requires understanding the physics and chemistry at the electrode–electrolyte interface,including the cathode-electrolyte interface and anodeelectrolyte *** review first identifies and analyses the interfacial challenges of aqueous zincion ***,it discusses the design strategies for addressing the defined interfacial issues from the perspectives of electrolyte optimization,electrode modification,and separator ***,it provides corrective recommendations and strategies for the rational design of electrode–electrolyte interface in aqueous zinc-ion batteries towards their high-performance and reliable energy storage.

关键词： Aqueous zinc-ion battery Interphase SEI Electrolyte Cathode Anode

Nanofibrils in 3D aligned channel arrays with synergistic effect of Ag/NPs for rapid and highly efficient electric field disinfection

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Chinese Chemical Letters 2021年第10期32卷 3143-3148页

作者： Zi Yang Hongyuhang Ni Pu liu hanwen liu Ke Yang Zhengze Zhang Baodui Wang Xiangkai Li Fengjuan Chen State Key Laboratory of Applied Organic Chemistry Lanzhou UniversityLanzhou 730000China Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations School of Life SciencesLanzhou UniversityLanzhou 730000China

The disinfection of waterborne pathogens from drinking water is extremely important for human *** countless efforts have been devoted for drinking water inactivation,challenges still exist in terms of relative high energy consumption and complicated to implement and ***,silver nanoparticles anchoring wood carbon(Ag NPs/WC)membrane is developed as cost-effective,high flux,scalable filter for highly efficient electric field disinfection of *** electric field of 4 V voltage,the designed membrane achieved more than 5 log(99.999%)disinfection performance for different model bacteria,including Escherichia coli(***),Enterococcus faecalis(***),Salmonella enterica serovar Typhimirium(***)and Bacillus subtilis(***)with a high flux of 3.8 x 103 L m^(-2)h^(-1),extremely low energy consumption of 2 J L^(-1)m^(-2)and fantastic durability(7 days).The high disinfection performance of Ag NPs/WC membrane is attributed to the synergistic disinfection of carbon nanofibrils,Ag nanoparticles as well as the low tortuous structure of the channels in wood *** Ag NPs/WC membrane presents a promising strategy for point-of-use drinking water electric field disinfection treatment.

关键词： Synergistic effect Electric field disinfection High throughput Low energy consumption Nanofibrils

Evaluation of phosphorus removal from wastewater by soils in rural areas in China

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Journal of Environmental Sciences 2010年第1期22卷 15-22页

作者： hanwen Liang, Junxin liu, Yuansong Wei, Xuesong GuoResearch Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Low-cost, easy-maintenance and high-efficiency decentralized wastewater treatment technologies are urgently needed in rural areas of China. Processes with high potential for phosphorus removal are of great interest. However, commonly used treatment methods often do not meet the strict criteria for removing phosphorus from rural wastewater. In order to search an economic and simple technology for phosphorus removal from the common bit-technologies effluent, seven soil types collected from different rural areas in China were investigated for their ability to remove phosphorus. X-ray diffraction （XRD） was used to analyse the mineral structure, and inductively coupled plasma optical emission spectrometer （ICP-OES） was used to analyse the geochemical composition of the soil samples. Three primary minerals - quartz, albite and montmorillonite - were clearly detected. The samples were divided into two soil types, acidic soils and alkaline soils, based on their pH values. The geochemical composition study indicated that a higher percentage of Ca and Mg occurred in alkaline soils （pH 〉 8） than in acidic soils （pH 〈 6.5）. Adsorption isotherms from batch experiments fitted the Langmuir and Freundlich models well, the maximum P adsorption capacities ranged from 0.256 to 1.598 mg P/g, indicating a high phosphorus removal potential for all of these soils. The P fractions extracted revealed that the sum of NaOH-extracted inorganic P （NaOH-Pi） was the major P component in the acidic soils, and CaCO3-bound phosphorus （Ca-P） in the alkaline soils. Dynamic adsorption simulation showed that these soils have the ability to remove phosphorus from wastewater.

关键词： adsorption phosphorus removal rural areas wastewater treatment

Understanding Sulfur Redox Mechanisms in Different Electrolytes for Room-Temperature Na-S Batteries

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Nano-Micro Letters 2021年第8期13卷 107-120页

作者： hanwen liu Wei-Hong Lai Qiuran Yang Yaojie Lei Can Wu Nana Wang Yun-Xiao Wang Shu-Lei Chou Hua Kun liu Shi Xue Dou Institute for Superconducting and Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongInnovation CampusSquires WayNorth WollongongNSW 2500Australia

This work reports influence of two different electrolytes,carbonate ester and ether electrolytes,on the sulfur redox reactions in room-temperature Na-S *** sulfur cathodes with different S loading ratio and status are investigated.A sulfur-rich composite with most sulfur dispersed on the surface of a carbon host can realize a high loading ratio(72%S).In contrast,a confined sulfur sample can encapsulate S into the pores of the carbon host with a low loading ratio(44%S).In carbonate ester electrolyte,only the sulfur trapped in porous structures is active via‘solid-solid’behavior during *** S cathode with high surface sulfur shows poor reversible capacity because of the severe side reactions between the surface polysulfides and the carbonate ester *** improve the capacity of the sulfur-rich cathode,ether electrolyte with NaNO_(3) additive is explored to realize a‘solid-liquid’sulfur redox process and confine the shuttle effect of the dissolved *** a result,the sulfur-rich cathode achieved high reversible capacity(483 mAh g^(−1)),corresponding to a specific energy of 362 Wh kg^(−1) after 200 cycles,shedding light on the use of ether electrolyte for high-loading sulfur cathode.

关键词： Room-temperature sodium-sulfur batteries Carbonate ester electrolyte Ether electrolyte Sulfur cathode Sulfur redox reactions

Ruthenium-modified porous NiCo2O4 nanosheets boost overall water splitting in alkaline solution

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Chinese Chemical Letters 2022年第11期33卷 4930-4935页

作者： Rui Yang Xuezhao Shi Yanyan Wang Jing Jin hanwen liu Jie Yin Yong-Qing Zhao Pinxian Xi State Key Laboratory of Applied Organic Chemistry Frontiers Science Center for Rare Isotopes College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000China Lanzhou Jinchuan Advanced Materials Technology Co. Ltd.Jinchang 737100China

Exploring efficient oxygen evolution reaction(OER)and hydrogen evolution reaction(HER)electrocatalysts is crucial for developing water splitting *** composition and structure of catalysts are of great importance for catalytic *** this work,a heterogeneous Ru modified strategy is engineered to improve the catalytic performance of porous NiCo_(2)O_(4)nanosheets(NSs).Profiting from favorable elements composition and optimized structure property of decreased charge transfer barrier,more accessible active sites and increased oxygen vacancy concentration,the Ru-NiCo_(2)O_(4)NSs exhibits excellent OER activity with a low overpotential of 230 mV to reach the current density of 10 mA/cm^(2)and decent ***,Ru-NiCo_(2)O_(4)NSs show superior HER activity than the pristine NiCo_(2)O_(4)NSs,as *** assembling Ru-NiCo_(2)O_(4)NSs couple as an alkaline water electrolyzer,a cell voltage of 1.60 V can deliver the current density of 10 mA/cm^(2).This work provides feasible guidance for improving the catalytic performance of spinel-based oxides.

关键词： Ru modification Porous nanosheets Oxygen vacancy Spinel-based oxides Water splitting

CuO/Co_(3)O_(4)Bifunctional Catalysts for Electrocatalytic 5-Hydroxymethylfurfural Oxidation Coupled Cathodic Ammonia Production

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Energy & Environmental Materials 2024年第5期7卷 255-262页

作者： Li Zhang Peiyue Jin Ze Wu Bo Zhou Junchang Jiang Aomeng Deng Qiuyue Li Tanveer Hussain Yiqiong Zhang hanwen liu Shuangyin Wang College of Materials Science and Engineering Changsha University of Science and TechnologyChangsha 410114China School of Chemical Engineering Xiangtan UniversityXiangtan 411105China State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China School of Science and Technology University of New EnglandArmidaleNSW 2351Australia WA School of Mines MineralsEnergy and Chemical Engineering(WASM-MECE)Curtin UniversityPerthWA 6102Australia

The electrochemical coupling of biomass oxidation and nitrogen conversion presents a potential strategy for high value-added chemicals and nitrogen ***,in this work,CuO/Co_(3)O_(4)with heterogeneous interface is successfully constructed as a bifunctional catalyst for the electrooxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and the electroreduction of nitrate to ammonia(NH_(3)).The open-circuit potential spontaneous experiment shows that more 5-hydroxymethylfurfural molecules are adsorbed in the Helmholtz layer of the CuO/Co_(3)O_(4)composite,which certifies that the CuO/Co_(3)O_(4)heterostructure is conducive to the kinetic adsorption of *** situ electrochemical impedance spectroscopy further shows that CuO/Co_(3)O_(4)has faster reaction kinetics and lower reaction potential in oxygen evolution reaction and 5-hydroxymethylfurfural electrocatalytic ***,CuO/Co_(3)O_(4)also has a good reduction effect on NO_(3)^(-).The ex-situ Raman spectroscopy shows that under the reduction potential,the metal oxide is reduced,and the generated Cu_(2)O can be used as a new active site for the reaction to promote the electrocatalytic conversion of NO_(3)^(-)to NH_(3) *** work provides valuable guidance for the synthesis of value-added chemicals by 5-hydroxymethylfurfural electrocatalytic oxidation coupled with NO_(3)^(-)while efficiently producing NH_(3).

关键词： 5-hydroxymethylfurfural oxidation ammonia production bifunctional catalyst CuO/Co_(3)O_(4) electrocatalyst

Two-in-one shell configuration for bimetal selenides toward fast sodium storage within broadened voltage windows

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Carbon Energy 2022年第4期4卷 586-597页

作者： Zichao Yan Lingfei Zhao Yaru Liang Lei Zhang hanwen liu Zhiqiang Zhu Yunxiao Wang Shu-Lei Chou State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangshaChina Institute for Superconducting&Electronic Materials University of WollongongInnovation CampusNorth WollongongNew South WalesAustralia School of Materials Science and Engineering Xiangtan UniversityHunanXiangtan CityChina Institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhouZhejiangChina

The shell structure design has been recognized as a highly efficient strategy to buffer the severe volume expansion and consecutive pulverization of conversion-type ***,construction of a functional shell with a stabilized structure that meets the demands of both high electronic conductivity and feasible pathways for Na^(+)ions has been a challenge so ***,we design a two-in-one shell configuration for bimetal selenides to achieve fast sodium storage within broadened voltage *** hybridized shell,which benefits from the combination of titanium dioxide quantum dots and amorphous carbon,can not only effectively buffer the strain and maintain structural integrity but also allow facile and reversible transport of electrons and Na^(+)uptake for electrode materials during sodiation/desodiation processes,resulting in increased reaction kinetics and diffusion of sodium ions,conferring many benefits to the functionality of conversion-type electrode *** a representative material,Ni-CoSe_(2) with such structural engineering shows a reversible capacity of 515 mAh g^(−1)at 0.1 A g^(−1)and a stable capacity of 416 mAh g^(−1)even at 6.4 A g^(−1);more than 80%of the capacity at 0.1 A g^(−1)could be preserved,so that this strategy holds great promise for designing fast-charging conversion-type anodes in the future.

关键词： bimetal selenides fast charging hybridized shell sodium-ion batteries structure engineering

Highly efficient chemicalproductionviaelectrified,transient high-temperature synthesis

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eScience 2024年第4期4卷 41-53页

作者： Yichen Dong Yi Rao hanwen liu Hao Zhang Rong Hu Yingquan Chen Yonggang Yao Haiping Yang State Key Laboratory of Coal Combustion School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

In response to the current energy and environmental challenges,reducing or replacing reliance on fossil fuels and striving for carbon neutrality seems to be the only viable ***,a cutting-edge,eco-friendly method of chemical synthesis via transient Joule heating(JH)demonstrated significant promise across various domains,including methane reforming,ammonia synthesis,volatile organic compounds removal,plastic recycling,the synthesis of functional carbon materials from repurposed solid waste,*** this review,the advantages,and latest developments in thermochemical synthesis by flash and transient JH are comprehensively *** the ongoing heating process of conventional furnaces that consume fossil fuels,dynamic and transient JH can get significantly higher reaction rates,energy efficiency,flexibility,and ***,the transient reaction mechanism,data science optimization,and scale-up production models are discussed,and prospects for the integration of the electrified chemical industry with renewable energy for carbon neutrality and long-term energy storage are also envisioned.

关键词： Electrified chemicalsynthesis Transient heating Low-carbon production Gas-phasereaction Solid waste

High-entropy alloy catalysts:From bulk to nano toward highly efficient carbon and nitrogen catalysis

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Carbon Energy 2022年第5期4卷 731-761页

作者： Lanlan Yu Kaizhu Zeng Chenghang Li Xiaorong Lin hanwen liu Wenhui Shi Hua-Jun Qiu Yifei Yuan Yonggang Yao State Key Laboratory of Materials Processing and Die and Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanHubeiChina College of Chemistry and Materials Engineering Wenzhou UniversityWenzhouZhejiangChina Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)ShenzhenGuangdongChina

High-entropy alloys(HEAs)have attracted widespread attention as both structural and functional materials owing to their huge multielement composition space and unique high-entropy mixing ***,emerging HEAs,either in nano or highly porous bulk forms,are developed and utilized for various catalytic and clean energy applications with superior activity and remarkable *** catalysts,HEAs possess some unique advantages,including(1)a multielement composition space for the discovery of new catalysts and fine-tuning of surface adsorption(i.e.,activity and selectivity),(2)diverse active sites derived from the random multielement mixing that are especially suitable for multistep catalysis,and(3)a high-entropy stabilized structure that improves the structural durability in harsh catalytic *** from these inherent advantages,HEA catalysts have demonstrated superior catalytic performances and are promising for complex carbon(C)and nitrogen(N)cycle reactions featuring multistep reaction pathways and many different ***,the design,synthesis,characterization,and understanding of HEA catalysts for C-and N-involved reactions are extremely challenging because of both complex high-entropy materials and complex *** this review,we present the recent development of HEA catalysts,particularly on their innovative and extensive syntheses,advanced(in situ)characterizations,and applications in complex C and N looping reactions,aiming to provide a focused view on how to utilize intrinsically complex catalysts for these important and complex *** the end,remaining challenges and future directions are proposed to guide the development and application of HEA catalysts for highly efficient energy storage and chemical conversion toward carbon neutrality.

关键词： carbon conversion electrocatalysis high-entropy alloy catalysts multifunctionality nitrogen conversion