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A review of anodic catalysts and their application in(non-)Kolbe electrocatalytic decarboxylation of carboxylic acids

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Carbon Resources Conversion 2023年第4期6卷 287-297页

作者： Shichun Wang Dezhang Ren Yueying Du Mengjie Zhang Nahui Zhang Yaguang Sun Zhibao Huo College of Marine Ecology and Environment Shanghai Ocean University999 Huchenghuan RoadShanghai 201306China The Key Laboratory of Inorganic Molecule-Based Chemistry of Liaoning province Shenyang University of Chemical TechnologyShenyang110142China Shanghai engineering research center of River and Lake Biochain Construction and Resource Utilization Shanghai201702China

Biomass,as the exclusive and abundant organic resources,is considered to be the promising renewable *** acids are one of the many compounds that can be obtained from raw *** of carboxylic acids into fuels and chemicals via electrochemical method at mild reaction condition has been studied for many ***(non-)Kolbe reaction,one of the oldest organic electrochemical reactions,is the decarboxylation of carboxylic acids to produce alkanes,alcohols,esters,*** electrode materials influence the production of electrocatalytic decarboxylation products from carboxylic ***,this work mainly reviews the recent advances in applications of anodic materials for(non-)Kolbe electrocatalytic decarboxylation of carboxylic *** discusses the reaction mechanism of(non-)Kolbe electrolytic reaction,and the electrocatalytic oxidation of carboxylic acid using different electrodes and electrolytic systems to synthesize fuels and ***,various types of electrode catalysts,such as Pt-based catalysts,C-based catalysts,and other catalysts,are introduced in ***,the challenges and future trends of the(non-)Kolbe reaction of carboxylic acids are *** review found that platinum-based electrocatalysts proved to be the most promising catalysts at *** in recent years,a variety of synthesis methods have been developed to synthesize small size and high-performance noble metal based amorphous *** approach is to study catalysts without platinum electricity,such as Ru,Ir,Ti and carbon *** review is helpful in understanding and know the anodic materials and their application in(non-)Kolbe electrocatalytic decarboxylation of carboxylic acids for the readers.

关键词： Electrocatalytic decarboxylation Carboxylic acid (non-)Kolbe reaction Anode material Catalysis

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Investigation on the urea deposit formation and thermal decomposition characteristics in the SCR aftertreatment system of a diesel engine

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Journal of Environmental Sciences 2021年第5期33卷 157-171页

作者： Menghan Li Yao Zhang Jiancheng Yang Xiaori Liu Zhenguo Li Qiang Zhang Tianjin Key Laboratory of Clean Energy and Pollution Control School of Energy and Environmental EngineeringHebei University of TechnologyTianjin 300401China School of Civil and Transportation engineering Hebei University of TechnologyTianjin 300401China National engineering Laboratory for Mobile Source Emission Control technology China Automotive Technology&Research Center Co.Ltd.Tianjin 300300China State Key Laboratory of Engines Tianjin UniversityTianjin 300072China School of Energy and Power engineering Shandong UniversityJinanShandong 250061China

Selective catalytic reduction is the most efficient and reliable equipment for NOx control in current diesel engines. However, the issue of urea crystallization becomes increasingly serious with the implement of the new emissions standards. In this paper, urea deposit samples collected from engine test bed and tube furnace were characterized by thermogravimetric analysis and Fourier transform-infrared analysis to aid the comprehension of urea deposit formation. Moreover, thermogravimetric tests were conducted to disclose the effects of catalyst on the thermal decomposition processes of urea deposit. The results indicated that less temperature resistant species are formed in the engine test bed than in the tube furnace at conditions with the same temperatures. The main compositions in the World Harmonized Transient Cycle(WHTC) urea deposits are urea, cyanuric acid(CYA) and ammelide, implying that accelerating the decomposition of these species could prevent the accumulation of urea deposit. CuWTi, Cu β and CuZSM catalysts could lead to increased yield of CYA during pure urea thermolysis. Cu β, CuWTi and VWTi catalysts tend to promote the thermolysis of CYA while VWTi has the most significant catalytic effects on the thermal decomposition of ammelide and ammeline.

关键词： Urea deposit Decomposition characteristics Selective catalytic reduction Catalyst Thermolysis

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Taxonomic studies of some often over-looked Diaporthomycetidae and Sordariomycetidae

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Fungal Diversity 2021年第6期111卷 443-572页

作者： Shi-Ke Huang Kevin D.Hyde Ausana Mapook Sajeewa S.N.Maharachchikumbura Jayarama D.Bhat Eric H.C.McKenzie Rajesh Jeewon Ting-Chi Wen State Key Laboratory Breeding Base of green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou UniversityGuiyang 550025China The engineering research center of Southwest Bio-Pharmaceutical Resources Ministry of EducationGuizhou UniversityGuiyang 550025Guizhou ProvinceChina center of Excellence in Fungal research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand The Mushroom research Centre Guizhou UniversityGuiyang 550025China Institute of Plant Health Zhongkai University of Agriculture and EngineeringHaizhu DistrictGuangzhou 510225China School of Life Science and technology University of Electronic Science and Technology of ChinaChengdu 611731China Department of Botany Goa UniversityGoaIndia Present Address:Goa Velha India Manaaki Whenua-Landcare research Private Mail Bag 92170AucklandNew Zealand Department of Health Sciences Faculty of Medicine and Health SciencesUniversity of MauritiusReduitMauritius

Sordariomycetes is an earlier-introduced and one of the widely distributed class of *** class was initially clas-sified based on morphology in having inoperculate and unitunicate *** the development of DNA based phylogenetic analysis,several undetermined or polyphyletic members of Sordariomycetes were ***,not all species belonging to this class have been sequenced and *** are a number of species,especially those old and poorly studied ones which have never been sequenced before and not even recollected again for further taxonomic *** of the main objective in this study is to revise and update the taxonomy of several well-known early and poorly studied spe-cies whose classification are still ***,we re-examined the type materials and/or authentic specimens together to explore 74 relatively poorly-studied genera,which mainly belong to Boliniales,Calosphaeriales,Chaetosphaeriales,Jobellisiales,and Sordariales classified under Diaporthomycetidae and *** provide descriptions,notes,figures and/or drawings and discussed their phylogenetic *** a result,the monotypic Jobellisiales is transferred from Hypocreomycetidae to *** on phylogenetic analysis,the polyphyletic Lasiosphaeriaceae is divided into five families,Bombardiaceae(Apodospora,Bombardia,Bombardioidea,Fimetariella and Ramophialophora),Lasiosphaeriaceae(Anopodium,Bellojisia,Corylomyces,Lasiosphaeria,Mammaria and Zopfiella),Lasiosphaeridaceae(Lasiosphaeris),Strattoniaceae(Strattonia)and Zygospermellaceae(Episternus and Zygospermella).In addition,a new family Neoschizotheciaceae is established based on *** of the type species of Boothiella,Stel-latospora,Sulcatistroma and Tengiomyces placed them in Sordariaceae,Chaetomiaceae,Hypocreales and Coronophorales,*** classify the genera lacking molecular data based on their morphology and expect them to be recollected;that is

关键词： 43 new taxa Boliniales Calosphaeriales Helminthosphaeriaceae Jobellisiales Sordariales Sordariomycetes

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An improved α-cut approach to transforming fuzzy membership function into basic belief assignment

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Chinese Journal of Aeronautics 2016年第4期29卷 1042-1051页

作者： Yang Yi X.Rong Li Han Deqiang SKLSVMS School of Aerospace Xi'an Jiaotong University Department of Electrical engineering University of New Orleans center for Information engineering Science research Xi'an Jiaotong University

In practical applications, pieces of evidence originated from different sources might be modeled by different uncertainty theories. To implement the evidence combination under the Dempster–Shafer evidence theory (DST) framework, transformations from the other type of uncertainty representation into the basic belief assignment are needed. α-Cut is an important approach to transforming a fuzzy membership function into a basic belief assignment, which provides a bridge between the fuzzy set theory and the DST. Some drawbacks of the traditional α-cut approach caused by its normalization step are pointed out in this paper. An improved α-cut approach is proposed, which can counteract the drawbacks of the traditional α-cut approach and has good properties. Illustrative examples, experiments and related analyses are provided to show the rationality of the improved α-cut approach. © 2016 Chinese Society of Aeronautics and Astronautics

关键词： Fuzzy set theory Fuzzy sets Uncertainty analysis

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Synthesis and photoluminescence property of red phosphors LiEu_(1-x)Y_x(WO_4)_(0.5)(MoO_4)_(1.5) for white LED

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Science China(Technological Sciences) 2009年第7期52卷 1913-1918页

作者： XIE An, YUAN XiMing, WANG JuanJuan & WANG Feng engineering research center of Nano-Mineral Materials and Application, Ministry of Education, Faculty of Materials Science and Chemical engineering, China University of Geosciences, Wuhan 430074, China engineering research center of Nano-Mineral Materials and Application Ministry of Education Faculty of Materials Science and Chemical Engineering China University of Geosciences

A series of novel red phosphors LiEu1-xYx(WO4)0.5(MoO4)1.5 (x=0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8) were synthesized by conventional solid state reaction method with the starting materials: WO3, MoO3, Eu2O3, Li2CO3 and Y2O3. The spectrum and the crystal structure of the phosphors were characterized by F-4500 and XRD respectively. Meanwhile the effects of flux and Y3+ concentration on the crystal structure and luminescent properties of the phosphors were investigated. The results showed that the optimal content of flux (WAlF3/WH3BO3=1/1) was 1 wt% and the optimal doping concentration of Y3+ was 0.5 mol. The emission spectrum showed the most intense peak was located at 615 nm, which corresponds to the 5D0→7F2 transition of Eu3+ and that Eu3+ occupied the lattice site of noncentrosymmetric environment in the scheelite phases. The excitation spectrum displayed that these phosphors could be effectively excited by ultraviolet (UV) (396 nm) and blue (466 nm) light, nicely in correspondence with the widely ap- plied output wavelengths of ultraviolet or blue LED chips. The influence of flux on the luminescent properties of LiEu0.5Y0.5(WO4)0.5(MoO4)1.5 phosphor was analyzed. The XRD spectra indicated that the flux could help to crystallize the phosphor, and no other phases were formed except the tetragonal. When adding flux, the relative intensity of LiEu0.5Y0.5(WO4)0.5(MoO4)1.5 became much stronger and the average particle size of the phosphor decreased.

关键词： red emitting phosphor LiEu1-xYx(WO4)0.5(MoO4)1.5 flux white LED

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Precise Thermoplastic Processing of Graphene Oxide Layered Solid by Polymer Intercalation

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Nano-Micro Letters 2022年第1期14卷 226-238页

作者： Zeshen Li Fan Guo Kai Pang Jiahao Lin Qiang Gao Yance Chen Dan Chang Ya Wang Senping Liu Yi Han Yingjun Liu Zhen Xu Chao Gao MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringKey Laboratory of Adsorption and Separation Materials&Technologies of Zhejiang ProvinceZhejiang University38 Zheda RoadHangzhou 310027People’s Republic of China National Special Superfine Powder engineering research center Nanjing University of Science and Technology1 Guanghua RoadNanjing 210094People’s Republic of China School of Mechanical engineering Southeast UniversityNanjing 211189People’s Republic of China Hangzhou Gaoxi technology Co.Ltd Yuhang DistrictLiangzhu 311113People’s Republic of China

The processing capability is vital for the wide applications of materials to forge structures ***-based macroscopic materials have shown excellent mechanical and functional ***,different from usual polymers and metals,graphene solids exhibit limited deformability and processibility for precise ***,we present a precise thermoplastic forming of graphene materials by polymer intercalation from graphene oxide(GO)*** intercalated polymer enables the thermoplasticity of GO solids by thermally activated motion of polymer *** detect a critical minimum containing of intercalated polymer that can expand the interlayer spacing exceeding 1.4 nm to activate thermoplasticity,which becomes the criteria for thermal plastic forming of GO *** thermoplastic forming,the flat GO-composite films are forged to Gaussian curved shapes and imprinted to have surface relief patterns with size precision down to 360 *** plastic-formed structures maintain the structural integration with outstanding electrical(3.07×10^(5) S m^(−1))and thermal conductivity(745.65 W m^(−1) K^(−1))after removal of *** thermoplastic strategy greatly extends the forming capability of GO materials and other layered materials and promises versatile structural designs for more broad applications.

关键词： Thermoplastic forming Graphene materials Polymer intercalation Processing capability Structural design

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Design of Vegetable Pot Seedling Pick‑up Mechanism with Planetary Gear Train

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Chinese Journal of Mechanical engineering 2020年第4期33卷 87-97页

作者： Zhipeng Tong Gaohong Yu Xiong Zhao Pengfei Liu Bingliang Ye Zhejiang province Key Laboratory of Transplanting Equipment and technology Zhejiang Sci-Tech UniversityHangzhou 310018China Faculty of Mechanical engineering&Automation Zhejiang Sci-Tech UniversityHangzhou 310018China

It has been challenging to design seedling pick-up mechanism based on given key points and trajectories,because it involves dimensional synthesis and rod length *** this paper,the dimensional synthesis of seedling pickup mechanism with planetary gear train was studied based on the data of given key points and the trajectory of the endpoint of seedling pick-up *** the positions and orientations requirements of the five key points,the study first conducted a dimensional synthesis of the linkage size and center of *** next steps were to select a reasonable solution and optimize the data values based on the ideal seedling *** link motion was driven by the planetary gear train of the two-stage *** pitch curves of noncircular gears were obtained by calculating and distributing the transmission ratio according to the *** the pitch curve with two convex points,the tooth profile design method of incomplete noncircular gear was *** seedling pick-up mechanism was tested by a virtual prototype and a physical prototype designed with the obtained parameter *** results were consistent with the theoretical design requirements,confirming that the mechanism meets the expected requirements for picking seedlings *** paper presents a new design method of vegetable pot seedling pick-up mechanism for an automatic vegetable transplanter.

关键词： Combined incomplete noncircular gear Mechanism dimension synthesis Planetary gear train Seedling pick-up mechanism

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Durable and recyclable BiOBr/silk fibroin-cellulose acetate composite film for efficient photodegradation of dyes under visible light irradiation

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Frontiers of Chemical Science and engineering 2023年第11期17卷 1765-1775页

作者： Jialiang Xu Jian Jian Yixiao Dan Jie Song Lingxi Meng Pei Deng Weijie Sun Yusheng Zhang Jinhua Xiong Zhengqiu Yuan Hu Zhou School of Chemistry and Chemical engineering Hunan Engineering Research Center for Functional Film MaterialsHunan University of Science and TechnologyXiangtan 411201China School of Chemical engineering Post Doctoral Mobile Station in ChemistryXiangtan UniversityXiangtan 411105China Post Doctoral research Workstation Anhui Huaxing Chemical Industry Co.Ltd.Hexian 238251China

A stable and recyclable of BiOBr/silk fibroincellulose acetate composite film was prepared by blendingwet phase transformation and in situ precipitate *** cellulose acetate film modified by silk fibroin formed a finger-shaped porous structure,which provided a large space for the uniform growth of BiOBr nanosheets and facilitated the shuttle flow of dyes in *** morphology,phase structure,and optical properties of the composite films were characterized using various techniques,and their photocatalytic performance for dye wastewater was evaluated under visible light *** showed that the BiOBr/SF-CA composite film exhibited efficient photocatalytic activity with 99.9%of rhodamine B degradation ***,the composite film maintained high catalytic stability because Bi as the active species deposited on the film showed almost no ***,the possible photocatalytic mechanisms in the BiOBr/SF-CA composite film were speculated through radical-trapping experiments and electron spin resonance testing.

关键词： BiOBr nanosheet cellulose acetate silk fibroin photocatalytic degradation dye wastewater

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AgInS_(2)/ZnS quantum dots for noninvasive cervical cancer screening with intracellular pH sensing using fluorescence lifetime imaging microscopy

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Nano research 2022年第6期15卷 5193-5204页

作者： Wenhua Su Dan Yang Yulan Wang Yawei Kong Wanlu Zhang Jing Wang Yiyan Fei Ruiqian Guo Jiong Ma Lan Mi Department of Optical Science and engineering Shanghai Engineering Research Center of Ultra-precision Optical ManufacturingKey Laboratory of Micro and Nano Photonic Structures(Ministry of Education)School of Information Science and TechnologyFudan UniversityShanghai 200433China Institute for Electric Light Sources School of Information Science and TechnologyFudan UniversityShanghai 200433China Department of Gynecology and Obstetrics The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430014China Institute of Photonic Chips University of Shanghai for Science and TechnologyShanghai 200093China Centre for Artificial-Intelligence NanophotonicsSchool of Optical-Electrical and Computer EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China Institute of Biomedical engineering and technology Academy for Engineer and TechnologyFudan University220 Handan RoadShanghai 200433China Shanghai engineering research center of Industrial Microorganisms the Multiscale Research Institute of Complex Systems(MRICS)School of Life SciencesFudan University220 Handan RoadShanghai 200433China

Intracellular pH plays a critical role in biological functions,and abnormal pH values are related to various ***,we report on an intracellular pH sensor AgInS_(2)(AIS)/ZnS quantum dots(QDs)that show long fluorescence lifetimes of hundreds of nanoseconds and low *** lifetime imaging microscopy(FLIM)combined with AIS/ZnS QDs is used for the imaging of live cells in different pH buffers and different cell *** FLIM images of AIS/ZnS QDs in live cells demonstrate different intracellular pH values in different regions,such as in lysosomes or *** method can also distinguish cancer cells from normal cells,and the fluorescence lifetime difference of the AIS/ZnS QDs between the two types of cells is 100±7 *** importantly,the exfoliated cervical cells from 20 patients are investigated using FLIM combined with AIS/ZnS *** lifetime difference value between the normal and cervical cancer(CC)groups is 115±9 ns,and the difference between the normal and the precancerous lesion group is 64±9 *** the first time,the noninvasive method has been used for cervical cancer screening,and it has shown great improvement in sensitivity compared with a clinical conventional cytology examination.

关键词： AIS/ZnS quantum dots fluorescence lifetime imaging microscopy intracellular pH sensing cervical cancer screening noninvasive

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恒阻吸能材料及锚固体力学特性研究与应用

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Journal of Central South University 2023年第10期30卷 3361-3373页

作者：王琦辛忠欣江贝王鸣子何满潮魏华勇 State Key Laboratory for Geo-mechanics and Deep Underground engineering China University of Mining and Technology-BeijingBeijing 100083China State Key Laboratory of Explosion Science and technology Beijing Institute of TechnologyBeijing 100081China Geotechnical and Structural engineering research center Shandong UniversityJi’nan 250061China

锚固支护作为地下工程围岩控制的主体,与围岩联合承载形成锚固体,共同抵抗动力灾害释放的能量。传统锚杆(索)支护强度、延伸率不足,在抵抗动力灾害时易破断失效。恒阻吸能材料是一种具有高强、高延伸的新型支护材料。为明确恒阻吸能新... 详细信息

锚固支护作为地下工程围岩控制的主体,与围岩联合承载形成锚固体,共同抵抗动力灾害释放的能量。传统锚杆(索)支护强度、延伸率不足,在抵抗动力灾害时易破断失效。恒阻吸能材料是一种具有高强、高延伸的新型支护材料。为明确恒阻吸能新材料及其锚固体的力学特性,本文开展了恒阻吸能支护材料与现场常用支护材料MG335、MG500的静力拉伸与动力冲击试验。在此基础上,对MG335、MG500与恒阻吸能支护材料锚固下的岩体开展了霍普金森冲击对比试验,研究了高速冲击下锚固体的变形破坏特征。相比于MG335、MG500锚固体,通过霍普金森冲击试验得到恒阻汲能锚固体的峰值应力提高了42.2%与63.9%,所能吸收的动力冲击能量提高了42.0%与63.2%。恒阻吸能支护技术能够增强锚固体的抗冲承载能力与吸能能力。结合上述试验成果,提出了强扰动下围岩恒阻吸能支护的工程建议,并在千米冲击地压矿井中应用。

关键词：恒阻吸能锚固岩体力学性能试验研究现场应用

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