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Triple-phase interfaces of graphene-like carbon clusters on antimony trisulfide nanowires enable high-loading and long-lasting liquid Li_(2)S_(6)-based lithium-sulfur batteries

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Journal of Energy Chemistry 2021年第8期30卷 599-607,I0013页

作者： Chenyang Zha Donghai Wu Xiuquan Gu Houyang Chen Key Laboratory of Flexible Electronics(KLOFE) Institute of Advanced Materials(IAM)Nanjing Tech UniversityNanjing 211816China Henan Key Laboratory of Nanocomposites and Applications Institute of Nanostructured Functional MaterialsHuanghe Science and Technology CollegeZhengzhou 450006China School of Materials and Physics China University of Mining and TechnologyXuzhou 221116JiangsuChina Department of Chemical and Biological Engineering State University of New York at Buffalo14260-4200 BuffaloUSA

High performance of lithium-sulfur batteries have been dragged down by their shuttling behavior which is complicated multiphase transition-based 16-electron redox reactions of the S8/Li2 *** this article,the triple-phase interfaces of graphene-like carbon clusters on antimony trisulfide(C-Sb_(2)S_(3))nanowires are tailored to design a multifunctional polysulfide host which can inhibit migration of polysulfides and accelerate conversion kinetics of redox electrochemical *** from the triple-interface design of polysulfides/Sb_(2)S_(3)/carbon clusters,the C-Sb_(2)S_(3) electrode not only anchors polysulfide migration by the synergistic effect of Sb,S,and C atoms as interfacial active sites,but also the graphene-like carbon clusters shorten the diffusion paths to further favor redox electron/ion transport through the liquid(electrolyte/polysulfide)and solid(Li2 S/S8,carbon clusters,and Sb_(2)S_(3))-based ***,these Li_(2)S_(6)-based C-Sb_(2)S_(3) cells possess high sulfur loading,excellent cycling stability,impressive specific capacity,and great rate *** work of interfacial engineering reveals insight for powering reaction kinetics in the complicated multistep catalysis reaction with multiphase evolution-based chargetransfer/non-transfer processes.

关键词： Triple-phase interfaces graphene-like carbon Antimony trisulfide High preformance Lithium-sulfur batteries

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High energy superstable hybrid capacitor with a self-regulated Zn/electrolyte interface and 3D graphene-like carbon cathode

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InfoMat 2022年第10期4卷 62-77页

作者： Nilesh R.Chodankar Swati J.Patil Sangjin Lee Jaeho Lee Seung-Kyu Hwang Pragati A.Shinde Indrajit V.Bagal Smita V.Karekar Ganji Seeta Rama Raju Kugalur Shanmugam Ranjith Deepak P.Dubal Yun-Suk Huh Young-Kyu Han Department of Energy and Material Engineering Dongguk University-SeoulSeoulRepublic of Korea Department of Biological Engineering NanoBio High-Tech Materials Research CenterInha UniversityIncheonRepublic of Korea Department of Biological Sciences and Bioengineering Inha UniversityIncheonRepublic of Korea Research Institute of Sciences and Engineering University of SharjahSharjahUnited Arab Emirates Department of Physics Chonnam National UniversityGwangjuRepublic of Korea School of Chemistry and Physics Centre for Materials ScienceQueensland University of Technology(QUT)BrisbaneQueenslandAustralia

Rechargeable aqueous zinc ion hybrid capacitors(ZIHCs),as an up-and-comer aqueous electrochemical energy storage system,endure in their infancy because of the substandard reversibility of Zn anodes,structural deterioration of cathode materials,and narrow electrochemical stability ***,a scalable approach is described that addresses Zn-anode/electrolyte interface and cathode materials associated deficiencies and boosts the electrochemical properties of *** Zn-anode/electrolyte interface is self-regulated by alteration of the traditional Zn2+electrolyte with Na-based supporting salt without surrendering the cost,safety,and green features of the Zn-based system which further validates the excellent reversibility over 1100 h with suppressed hydrogen *** deficits of cathode materials were overcome by using a high-mass loaded,oxygen-rich,3D,multiscaled graphene-like carbon(3D MGC)*** to the multiscaled texture,high electronic conductivity,and oxygen-rich functional groups of 3D MGC,reversible redox capacitance was obtained with a traditional adsorption/desorption *** ZIHCs containing the modified electrolyte and an oxygen-rich 3D MGC cathode resulted in battery-like specific energy(203 Wh kg1 at 1.6 A g^(-1))and supercapacitor-type power capability(4.9 kW kg1 at 8 A g^(-1))with outstanding cycling durability(96.75%retention over 30000 cycles at 10 A g^(-1)).These findings pave the way toward the utilization of highly efficient ZIHCs for practical applications.

关键词： electrolyte additive graphene-like carbon interface multivalent ion capacitor zinc

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Low H_(2)O_(2)consumption Fenton-like catalysts for pollutant cleavage based on the construction of a dual reaction center

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Journal of Environmental Sciences 2024年第11期145卷 107-116页

作者： Weixiang Liao Ziwen Zhao Lai Lyu Chun Hu Fan Li Key Laboratory for Water Quality and Conservation of the Pearl River Delta Ministry of EducationInstitute of Environmental Research at Greater BayGuangzhou UniversityGuangzhou 510006China Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China South China Institute of Environmental Sciences Ministry of Ecology and EnvironmentGuangzhou 510345China

High energy consumption has seriously hindered the development of Fenton-like reactions for the removal of refractory organic pollutants in *** solve this problem,we designed a novel Fenton-like catalyst(Cu-PAN3)by coprecipitation and carbon thermal *** catalyst exhibits excellent Fenton-like catalytic activity and stability for the degradation of various pollutants with low H_(2)O_(2)*** experimental results indicate that the dual reaction centers(DRCs)are composed of Cu-N-C and Cu-O-C bridges between copper and graphene-like carbon,which form electron-poor/rich centers on the catalyst surface.H_(2)O_(2)is mainly reduced at electron-rich Cu centers to free radicals for pollutant ***,pollutants can be oxidized by donating electrons to the electron-poor C centers of the catalyst,which inhibits the ineffective decomposition of H_(2)O_(2)at the electron-poor *** therefore significantly reduces the consumption of H_(2)O_(2)and reduces energy consumption.

关键词： Water purification Fenton-like Dual reaction centers graphene-like carbon Low H_(2)O_(2)consumption

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Graphitized Cu-β-cyclodextrin polymer driving an efficient dual-reaction-center Fenton-like process by utilizing electrons of pollutants for water purification

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Journal of Environmental Sciences 2023年第4期126卷 565-574页

作者： Weixiang Liao Lai Lyu DiWang Chun Hu Tong Li Key Laboratory for Water Quality and Conservation of the Pearl River Delta Ministry of EducationInstitute of Environmental Research at Greater BayGuangzhou UniversityGuangzhou 510006China School of Energy and Environmental Engineering University of Science and Technology BeijingBeijing 100083China

Excessive consumption of energy and resources is a major challenge in wastewater ***,a novel heterogeneous Fenton-like catalyst consisting of Cu-doped graphenelike catalysts (Cu-GCD NSs) was first synthesized by an enhanced carbothermal reduction of β-cyclodextrin (β-CD).The catalyst exhibits excellent Fenton-like catalytic activity for the degradation of various pollutants under neutral conditions,accompanied by low H_(2)O_(2)*** results of structural characterization and theoretical calculations confirmed that the dual reaction centers (DRCs) were constructed on Cu-GCD NSs surface through C-O-Cu bonds supported on zero-valent copper species,which play a significant role in the high-performance Fenton-like *** pollutants that served as electron donors were decomposed in the electron-poor carbon centers,whereas H_(2)O_(2)and dissolved oxygen obtained these electrons in the electron-rich Cu centers through C-O-Cu bonds,thereby producing more active *** study demonstrates that the electrons of pollutants can be efficiently utilized in Fenton-like reactions by DRCs on the catalyst surface,which provides an effective strategy to improve Fenton-like reactivity and reduce H_(2)O_(2)consumption.

关键词： Fenton-like Dual reaction centers graphene-like carbon Nanoscale zero-valent copper Pollutants degradation

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