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Curvature effects on electric-double-layer capacitance

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Chinese Journal of Chemical Engineering 2021年第3期34卷 145-152页

作者： Jie Yang Alejandro Gallegos Cheng Lian Shengwei Deng Honglai Liu Jianzhong Wu State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Department of Chemical and Environmental Engineering University of CaliforniaRiversideCA 92521USA College of Chemical Engineering Zhejiang University of TechnologyHangzhou 310014China

Understanding the microscopic structure and thermodynamic properties of electrode/electrolyte interfaces is central to the rational design of electric-double-layer capacitors(EDLCs).Whereas practical applications often entail electrodes with complicated pore structures,theoretical studies are mostly restricted to EDLCs of simple geometry such as planar or slit pores ignoring the curvature effects of the electrode *** gaps exist regarding the EDLC performance and the interfacial *** the classical density functional theory(CDFT)is used to study the capacitance and interfacial behavior of spherical electric double layers within a coarse-grained *** capacitive performance is associated with electrode curvature,surface potential,and electrolyte concentration and can be correlated with a regression-tree(RT)*** combination of CDFT with machine-learning methods provides a promising quantitative framework useful for the computational screening of porous electrodes and novel electrolytes.

关键词： Electric double layer Electrodes/electrolyte interface Curvature effects Classical density functional theory Machine learning

Controlling the Reconstruction of Ni/CeO_(2) Catalyst during Reduction for Enhanced CO Methanation

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Engineering 2022年第7期8卷 94-99页

作者： Xinyu Cao Tiancheng Pu Bar Mosevitzky Lis Israel E.Wachs Chong Peng Minghui Zhu Yongkang Hu State Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China Operando Molecular Spectroscopy and Catalysis Research Laboratory Department of Chemical and Biomolecular EngineeringLehigh UniversityBethlehemPA 18015USA Department of Instrument Science and Engineering School of Electronic InformationElectrical EngineeringShanghai Jiao Tong UniversityShanghai 200240China Dalian Research Institute of Petroleum and Petrochemicals SINOPECDalian 116045China

Reductive pretreatment is an important step for activating supported metal catalysts but has received little *** this study,reconstruction of the supported nickel catalyst was found to be sensitive to pretreatment *** contrast to the traditional activation procedure in hydrogen,activating the catalyst in syngas created supported Ni nanoparticles with a polycrystalline structure containing an abundance of grain *** unique post-activation catalyst structure offered enhanced CO adsorption and an improved CO methanation *** current strategy to tune the catalyst structure via manipulating the activation conditions can potentially guide the rational design of other supported metal catalysts.

关键词： Nickel–ceria catalyst Catalyst activation Crystallinity Methanation In situ spectroscopy

Enhanced thermoelectric performance of hydrothermally synthesized polycrystalline Te-doped SnSe

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Chinese Chemical Letters 2021年第2期32卷 811-815页

作者： Pei Li Xin Ai Qihao Zhang Shijia Gu Lianjun Wang Wan Jiang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China College of Information Science and Technology Donghua University.Shanghai 201620China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences.Beijing 100049China Institute of Functional Materials Donghua UniversityShanghai 201620China Engineering Research Center of Advanced Glasses Manufacturing Technology Ministry of EducationShanghai 201620China

In this study,large-scale Te-doped polycrystalline SnSe nanopowders were synthesized by a facile hydrothermal approach and the effect of Te doping on the thermoelectric properties of SnSe was fully *** is found that the carrier concentration increases due to the reduction of band gap by alloying with Te,which contributes to significant enhancement of electrical conductivity especially at room *** with the moderated Seebeck coefficient,a high power factor of 4.59μW cm 1 K 2 is obtained at 773 ***,the lattice the rmal conductivity is greatly reduced upon Te substitution owing to the atomic point defect *** from the synergistically optimized both electrical-and thermal-transport properties by Te-doping,thermoelectric performance of polycrystalline SnSe is enhanced in the whole temperature range with a maximum ZT of-0.79 at a relatively low temperature(773 K) for *** study provides a low-cost and simple lowtemperature method to mass production of SnSe with high thermoelectric performance for practical applications.

关键词： Polycrystalline SnSe Hydrothermal synthesis Thermoelectric Te doping

^(18)F-PBR06 PET/CT imaging of inflammation and differentiation of lung cancer in mice

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Nuclear Science and Techniques 2019年第5期30卷 122-129页

作者： He Zhang Hui Tan Wu-Jian Mao Jun Zhou Zhe-Quan Fu Yan Hu Jie Xiao Qing-Yu Lin Hong-Cheng Shi Deng-Feng Cheng shanghai Institute of Medical Imaging Department of Nuclear Medicine Zhongshan HospitalFudan University Institute of Nuclear Medicine Fudan University

The present study explored the 18-kDa translocator protein radioligand ^(18)F-PBR06 as a PET imaging biomarker for diagnosis of inflammation and compared it with ^(18)F-FDG for differentiation of inflammation and lung tumors in animals.^(18)F-PBR06 was synthesized with an average decay-corrected radiochemical yield of 30–40%(end of synthesis, EOS), and the radiochemical purity was greater than 99%. The inflammation-to-blood ratio of ^(18)FPBR06(3.53 ± 0.26) was higher than the tumor-to-blood ratio(1.77 ± 0.35)(P \ 0.001). The inflammation-tomuscle ratio of ^(18)F-PBR06(2.33 ± 0.64) was also higher than the tumor-to-muscle ratio(1.45 ± 0.14)(P = 0.036).Micro-PET/CT images showed high uptake of ^(18)F-FDG in both inflamed muscles and lung tumor tissues. However,^(18)F-PBR06 uptake in inflamed muscles remained higher than that in the lung tumor tissues, following 90 min of dynamic Micro-PET/CT imaging. Further, macrophages in the inflammatory regions showed a higher fluorescence signal than in lung tumor tissues. Results of the study confirmed that ^(18)F-PBR06 PET/CT imaging allowed for diagnosis of inflammation. Moreover,^(18)F-PBR06 uptake in the inflammatory regions was significantly higher than in lung tumor tissues, suggesting that ^(18)F-PBR06 PET/CT imaging has potential to differentiate between peripheral lung cancer and inflammation nodules.

关键词： TSPO Macrophage PET/CT Inflammation Lung cancer