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Highly Efficient Photoelectrocatalytic Reduction of CO2 to Methanol by a p–n Heterojunction CeO2/CuO/Cu Catalyst

nano-Micro letters 2020年第2期12卷 34-46页

作者： Zhengbin Pan Ershuan han Jingui Zheng Jing lu Xiaol.n Wang Yanbin Yin Geoffrey InWaterhouse Xiuguo Wang Peiqiang li Tobacco Research Institute of Chinese Academy of Agricultural Sciences(CAAS) Qingdao 266101People’s Republic of China College of Chemistry and Material Science Shandong Agricultural UniversityTai’an271018People’s Republic of China School of Chemical Sciences The University of AucklandAuckland 1142New Zealand

Photoelectrocatalytic reduction of CO2 to fuels has great potential for reducing anthropogenic CO2 emissions and also lessening our dependence on fossil fuel ***,we report the successful development of a novel photoelectrocatalytic catalyst for the selective reduction of CO2 to methanol,comprising a copper catalyst modified with flower-like cerium oxide nanoparticles(CeO2 nPs)(a n-type semiconductor)and copper oxide nanoparticles(CuO nPs)(a p-type semiconductor).At an applied potential of−1.0 V(vs SCE)under visible light irradiation,the CeO2 nPs/CuO nPs/Cu catalyst yielded methanol at a rate of 3.44μmol cm^−2 h^−1,which was approximately five times higher than that of a CuO nPs/Cu catalyst(0.67μmol cm^−2 h^−1).The carrier concentration increased by^108 times when the flower-like CeO2 nPs were deposited on the CuO nPs/Cu catalyst,due to synergistic transfer of photoexcited electrons from the conduction band of CuO to that of CeO2,which enhanced both photocatalytic and photoelectrocatalytic CO2 reduction on the CeO2 *** facile migration of photoexcited electrons and holes across the p–n heterojunction that formed between the CeO2 and CuO components was thus critical to excell.nt light-induced CO2 reduction properties of the CeO2 nPs/CuO nPs/Cu *** encourage the wider application of composite semiconductor electrodes in carbon dioxide reduction.

关键词： CO2 reduction Photoelectrocatalysis p–n heterojunction Cerium oxide Copper oxide

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Theoretical calculations and evaluations of n+^(23)na reaction

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nuclear Science and Techniques 2016年第4期27卷 193-205页

作者： Zhen-Dong Wu Hai-Ying liang Yin-lu han Department of nuclear Physics China Institute of Atomic Energy

The data for neutron-induced reactions are indispensable in a lot of applications of nuclear science and technologies. All reaction cross sections, angular distributions, energy spectra, and double-differential cross sections of neutron, proton, deuteron, triton, and alpha-particle emissions are consistently calculated and analyzed for n+^(23)na reactions at incident neutron energies below200 Me V, based on nuclear theoretical models. The calculated results are compared with the experimental data and the evaluated data in the EnDF/B-VII, JEnDl-4.0,and JEFF-3.2 libraries. In most cases, the calculated results describe the corresponding experimental data well. At the resonance energy region, evaluated experimental data are adopted to fit to the resonance structures.

关键词：计算结果诱发反应评价中子能量实验数据双微分截面反应截面共振能量

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Synthesis of tetraphenyl.ne derivatives and their recent advances

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national Science Review 2017年第6期4卷 892-916页

作者： Jian-Wei han Xiao-Shui Peng Henry n.C.Wong Shanghai-Hong Kong Joint laboratory in Chemical Synthesis Shanghai Institute of Organic ChemistryChinese Academy of Sciences Key laboratory for Advanced Materials Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology Department of Chemistry Center of Novel Functional Molecules Institute of Molecular Functional Materials and State Key Laboratory of Synthetic ChemistryThe Chinese University of Hong Kong

The synthetic strategies towards tetraphenyl.ne derivatives are comprehensively summarized in this *** advances in the functionalized tetraphenyl.ne skeleton for research into their structurally unique properties are ... 详细信息

关键词： tetraphenyl.ne aromatic chiral carbocycles eight-membered rings

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RM新兵：Helix Producer Plus 9

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大众软件 2002年第24期 47-48页

作者： l.n 言西

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Recent Advances in the Chemistry of n-Heterocyclic-Carbene-Functionalized Metal.nanoparticles and Their Applications

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Chinese Journal of Chemistry 2019年第1期37卷 76-87页

作者： Yuan-Yuan An Jian-Gang Yu Ying-Feng han Key laboratory of Synthetic and natural Functional Molecule Chemistry College of Chemistry and Materials ScienceNorthwest UniversityXi'anShaanxi 710127China College of Chemical and Material Engineering Quzhou UniversityQuzhouZhejiang 924000China state Key laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian 350002China

Metal.nanoparticles (M-nPs)have been widely applied in catalysis,imaging,sensing and *** particularly active area of this research is the modification of the surface of the nanoparticles to prevent aggregation through the coordination of ligands.n-Heterocyclic carbenes (nHCs)have emerged as suitable ligands for this purpose due to their affinity to the metals and their strongly electron donating nature.

关键词： M-nPs research nature

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双系统中自定义词作的转移 A32

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中国信息化周报

作者： l.n

现在不少朋友都在原先使用的Windows 98的基础上，又安装了Windows XP组成双系统。但是在Windows 98中积累的大量自定义词组却无法在Windows XP中使用，我们就想个办法解决这个问题。　　1．王码五笔输入法中的转移　　Office中的王码...

现在不少朋友都在原先使用的Windows 98的基础上，又安装了Windows XP组成双系统。但是在Windows 98中积累的大量自定义词组却无法在Windows XP中使用，我们就想个办法解决这个问题。　　1．王码五笔输入法中的转移　　Office中的王码五笔（86版）是笔者日常使用的输入法?

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Effects of Morphological Integrity of Secondary Feather on Their Drag Reduction in Pigeons

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Journal of Bionic Engineering 2022年第5期19卷 1422-1438页

作者： Qian li Huan Shen Qingfei han Aihong Ji Zhendong Dai Stanislav n.Gorb Institute of Bio-Inspired Structure and Surface Engineering College of Mechanical and Electrical EngineeringNanjing University of Aeronautics and Astronautics29 Yudao StreetNanjing 210016China Department of Functional Morphology and Biomechanics Kiel UniversityAm Botanischen Garten 924118 KielGermany

Flight feathers of birds interact with the air flow during *** the observed low drag and high lift values at wind speeds from 9.0 to 19.8 m/s can be achieved due to the feather aerodynamics remains *** the present paper,we tested and compared morphological changes,drag reduction and flow visualization results of intact,damaged,and artificial feathers at different wind speeds in a wind *** the analysis of the drag force and resultant force angle,we proved that the integrity of feathers,whose barbs are usually closely interconnected,played an important role in the drag,which potentially triggers excell.nt drag reduction *** wind tunnel tests indicated that intact secondary feathers had a surprisingly high maximum drag reduction property at v?=?9 m/s compared with the feathers,where the integrity of barbs was *** hook cascades facilitated elasticity under pressure and suitable permeability in an intact feather,when the hooks were *** was indicated that the suitable permeability of intact feathers would prevent flow separation and reduce drag force at low wind speed;at high wind speed,elasticity under pressure and suitable permeability in an intact feather would facilitate strong squeezing effect,helping feathers withstand larger aerodynamic forces to which they might be subjected during *** was revealed that the intact secondary feather is a compromise between strong lift generation and drag reduction,which has a great significance for the bird’s flight.

关键词： Morphological integrity Secondary feather Drag reduction Wind tunnel Smoke visualization Bioinspiration

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One-step synthesis of biomass derived O, n-codoped hierarchical porous carbon with high surface area for supercapacitors

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Chinese Chemical letters 2020年第9期31卷 2235-2238页

作者： Shuxian Sun Fuqin han Xiaoliang Wu Zhuangjun Fan College of Chemistry Chemical Engineering and Resource UtilizationNortheast Forestry UniversityHarbin 150040China College of Material Science and Engineering China University of PetroleumQingdao 266580China

We report a convenient method to synthesize O,n-codoped hierarchical porous carbon by one-step carbonization of the mixture of KHCO3,urea and alginic *** from KHCO3 and urea syne rgistic effect,the obtained O,n-codoped hierarchical porous carbon(nPC-700) material has a well-developed interconnected porous framework with ultrahigh specific surface area(2846 m2/g) and massive heteroatoms functional ***,such porous carbon displays high specific capacitance(324 F/g at 1 A/g),excell.nt rate performance(212 F/g at 30 A/g) and good electrochemical stabilization in 6 mol/l KOH *** importantly,the assembled nPC-700//nPC-700 symmetrical supercapacitor can achieve a high energy density of 18.8 Wh/kg and good electrochemical stabilization in 1 mol/l.na2SO4 *** process opens up a new way to design heteroatoms-doped hierarchical porous carbon derived from biomass materials for supercapacitors.

关键词： Alginic acid Urea KHCO3 Supercapacitors Hierarchical porous carbon

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A Statistical Mechanical Analysis on the Bound State Solution of an Energy-Dependent Deformed Hulthén Potential Energy

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Communications in Theoretical Physics 2019年第9期71卷 1127-1138页

作者： B.C.lütfüoglu A.n.Ikot U.S.Okorie A.T.ngiangia Department of Physics Faculty of ScienceAkdeniz University07058AntalyaTurkey Department of Physics Faculty of ScienceUniversity of Hradec KraloveRokitanskeho6250003Hradec KraloveCzechia Department of Physics Theoretical Physics GroupUniversity of Port HarcourtChobaPort HarcourtNigeria Department of Physics Akwa Ibom State UniversityIkot AkpadenP.M.B.1167UyoNigeria

In this article, we investigate the bound state solution of the Klein Gordon equation under mixed vector and scalar coupl.ng of an energy-dependent deformed Hulthén potential in D dimensions. We obtain a transcendental equation after we impose the boundary conditions. We calculate energy spectra in four different limits and in arbitrary dimension via the newton-Raphson method. Then, we use a statistical method, namely canonical partition function, and discuss the thermodynamic properties of the system in a comprehensive way. We find out that some of the thermodynamic properties overlap with each other, some of them do not.

关键词： Klein-Gordon equation energy-dependent deformed Hulthén potential energy bound state solution thermodynamic properties

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Synthesis and Thermal Behavior of new Precursors for B-C-n Ceramics

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Journal of Materials Science & Technology 2010年第3期26卷 228-233页

作者： Shaohua Dong Weijian han Yongming luo Tong Zhao Caihong Xu Institute of Chemistry Chinese Academy of Sciences Beijing 100190China Graduate School of the Chinese Academy of Sciences Beijing 100039 China

Three new borazine derivatives,2,4,6-tri（allylamino）borazine （CH 2 =CHCH 2 nHBnH） 3 （1）,2,4,6-tri（3ethynyl.nil.no）borazine （CH≡CC 6 H 4 nHBnH） 3 （2）,and 2,4,6-tri（4-propargyl oxyanil.no）borazine （CH≡ CCH 2 OC 6 H 4 nHBnH） 3 （3） were synthesized by reaction of 2,4,6-trichloro-borazine Cl 3 B 3 n 3 H 3 （TCB） with corresponding primary amines,*** thermal behavior was studied by differential scanning calorimetry （DSC） and thermogravimetric analysis （TGA）.These molecules were easily crossl.nked via thermal polymerization of reactive ethynyl or vinyl *** pyrolytic residues of borazines were investigated by X-ray photoelectron spectroscopy （XPS）,powder X-ray diffraction （XRD）,and scanning electron microscopy （SEM）.The analytic results indicated that B-C-n ceramics were formed upon pyrolysis of the borazines under an inert atmosphere.

关键词： Precursors Thermal properties B-C-n ceramic

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