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Electrosynthesis of H_(2)O_(2) through a two-electron oxygen reduction reaction by carbon based catalysts:From mechanism,catalyst design to electrode fabrication

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Environmental Science and Ecotechnology 2022年第3期11卷 1-31页

作者： Jingkun An Yujie Feng Qian Zhao Xin Wang Jia Liu Nan Li School of Environmental Science and Engineering Academy of Environment and EcologyTianjin UniversityNo.92 Weijin RoadNankai DistrictTianjin300072China State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyNo.73 Huanghe RoadNangang DistrictHarbin150090China MOE Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution ControlNankai UniversityNo.38 Tongyan RoadJinnan DistrictTianjin300350China

Hydrogen peroxide(H_(2)O_(2))is an efficient oxidant with multiple uses ranging from chemical synthesis to wastewater *** in-situ H_(2)O_(2)production via a two-electron oxygen reduction reaction(ORR)will bring H_(2)O_(2)beyond its current *** development of carbon materials offers the hope for obtaining inexpensive and high-performance alternatives to substitute noble-metal catalysts in order to provide a full and comprehensive picture of the current state of the art treatments and inspire new research in this ***,the most up-to-date findings in theoretical predictions,synthetic methodologies,and experimental investigations of carbon-based catalysts are systematically *** electrode fabrication and modification methods were also introduced and compared,along with our original research on the air-breathing cathode and three-phase interface theory inside a porous *** addition,our current understanding of the challenges,future directions,and suggestions on the carbon-based catalyst designs and electrode fabrication are highlighted.

关键词： H_(2)O_(2)production Oxygen reduction reaction Catalytic mechanism Catalyst design electrode fabrication

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Optimizing the fabrication of carbon nanotube electrode for effective capacitive deionization via electrophoretic deposition strategy

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Progress in Natural Science:Materials International 2018年第2期28卷 251-257页

作者： Simeng Zhang Yue Wang Xinyu Han Yanmeng Cai Shichang Xu Chemical Engineering Research Center School of Chemical Engineering and Technology Tianjin University Tianjin Key Laboratory of Membrane Science and Desalination Technology Collaborative Innovation Center of Chemical Science and Engineering Tianjin

In order to obtain superior electrode performances in capacitive deionization（CDI）, the electrophoretic deposition（EPD） was introduced as a novel strategy for the fabrication of carbon nanotube（CNT） *** parameters, including the concentration of slurry components, deposition time and electric field intensity, were mainly investigated and optimized in terms of electrochemical characteristic and desalination performance of the deposited CNT electrode. The SEM image shows that the CNT material was deposited homogeneously on the current collector and a non-crack surface of the electrode was obtained. An optimal preparation condition of the deposited CNT electrode was obtained and specified as the Al（NO3）3 M concentration of 1.3 × 10;mol/L, the deposition time of 30 min and the electric field intensity of 15 V/cm. The obtained electrode performs an increasing specific mass capacitance of 33.36 F/g and specific adsorption capacity of 23.93 mg/g, which are 1.62 and 1.85 times those of the coated electrode respectively. The good performance of the deposited CNT electrode indicates the promising application of the EPD methodology in subsequent research and fabrication of the CDI electrodes for CDI process.

关键词： Carbon nanotube Water treatment Desalination Capacitive deionization electrode fabrication Electrophoretic deposition

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Investigating TEP as a greener alternative to NMP in Ni-rich cathode fabrication

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Journal of Energy Chemistry 2023年第3期78卷 240-245,I0007页

作者： Changlong Chen Vignyatha Reddy Tatagari Hao Lin Leon Shaw Department of Mechanical Materials and Aerospace EngineeringIllinois Institute of TechnologyChicagoIL 60616United States Department of Chemistry Illinois Institute of TechnologyChicagoIL 60616United States

In the past decade,the surging demand for portable electronics,electric vehicles,and stationary energy storage grids has triggered a noticeable rise in the production of Li-ion batteries(LIBs).However,this swift rise is now hindered by relying on the use of N-methyl-2-pyrrolidone(NMP),a repro-toxic solvent,in the current cathode processing of *** overcome this challenge,here we have investigated triethyl phosphate(TEP) as a greener alternative to *** compatibility with polyvinylidene fluoride(PVDF)binder,the slurry rheology,the electrode morphology and cell performance with Ni-rich cathodes are *** results show that TEP-based samples possess indistinguishable characteristics in all as pects studied when compared with NMP,revealing that TEP is a promising substitute for NMP in processing Ni-rich *** is anticipated that this green solvent,TEP,will draw attention from industry in the real-world LIB application in the future.

关键词： Triethyl phosphate Li-ion batteries Green solvent electrode fabrication NMC622

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Photoelectrode for water splitting: Materials,fabrication and characterization

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Science China Materials 2018年第6期61卷 806-821页

作者： Zhiliang Wang Lianzhou Wang School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology The University of Queensland

Photoelectorchemical（PEC） water splitting is an attractive approach for producing sustainable and environment-friendly hydrogen. An efficient PEC process is rooted in appropriate semiconductor materials, which should possess small bandgap to ensure wide light harvest, facile charge separation to allow the generated photocharges migrating to the reactive sites and highly catalytic capability to fully utilize the separated photocharges. Proper electrode fabrication method is of equal importance for promoting charge transfer and accelerating surface reactions in the electrodes. Moreover,powerful characterization method can shed light on the complex PEC process and provide deep understanding of the rate-determining step for us to improve the PEC systems further. Targeting on high solar conversion efficiency, here we provide a review on the development of PEC water splitting in the aspect of materials exploring, fabrication method and characterization. It is expected to provide some fundamental insight of PEC and inspire the design of more effective PEC systems.

关键词： photoelectrode water splitting semiconductor material electrode fabrication characterization

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