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SYNTHESIS OF TiN BY MICROWAVE CARBOTHERMAL REDUCTION OF TiO_2

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Acta Metallurgica Sinica(English Letters) 1998年第4期11卷 291-295页

作者： B.H Liu Y zhang S.X. Ouyang and H.C. Gu (Research Institute of technical Chemical {2., East china University of Science and Technology,Shanghai 2.02.7, china)(department of Materials {2., University of Science and Technology beijing, beijing 10 East china Univ of Science and Technology Shanghai China

Titanium nitride powder was synthesized by microwave carbothermal reduction of titanium oxide. The mechanism and thermal dynamics of the reaction process were studied. The results show that the microwave carbothermal reduction technology has unique advantages over the conventional reduction methods. It can not only lower the reaction temperature, shorten the synthesis cycle, but also refine the product particles,as well as improving the reactivity of the powder.

关键词： TiN microwave carbothermal reduction

Dilute Aqueous-Aprotic Electrolyte Towards Robust Zn-Ion Hybrid Supercapacitor with High Operation Voltage and Long Lifespan

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Nano-Micro Letters 2024年第9期16卷 1-12页

作者： Shuilin Wu Yibing Yang Mingzi Sun Tian zhang Shaozhuan Huang Daohong zhang Bolong Huang Pengfei Wang Wenjun zhang Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science South-Central Minzu UniversityWuhan 430074People’s Republic of China department of Materials Science and Engineering and Center of Super‑Diamond and Advanced FilmsCity University of Hong Kong83 Tat Chee AvenueKowloon TongHong Kong SARPeople’s Republic of China department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijingPeople’s Republic of China

With the merits of the high energy density of batteries and power density of supercapacitors,the aqueous Zn-ion hybrid supercapacitors emerge as a promising candidate for applications where both rapid energy delivery and moderate energy storage are ***,the narrow electrochemical window of aqueous electrolytes induces severe side reactions on the Zn metal anode and shortens its *** also limits the operation voltage and energy density of the Zn-ion hybrid ***'water in salt'electrolytes can effectively broaden their electrochemical windows,but this is at the expense of high cost,low ionic conductivity,and narrow temperature compatibility,compromising the electrochemical performance of the Zn-ion hybrid ***,designing a new electrolyte to balance these factors towards high-performance Zn-ion hybrid supercapacitors is urgent and *** developed a dilute water/acetonitrile electrolyte(0.5 m Zn(CF_(3)SO_(3))_(2.+1 m LiTFSI-H_(2.O/AN)for Zn-ion hybrid supercapacitors,which simultaneously exhibited expanded electrochemical window,decent ionic conductivity,and broad temperature *** this electrolyte,the hydration shells and hydrogen bonds are significantly modulated by the acetonitrile and *** a result,a Zn-ion hybrid supercapacitor with such an electrolyte demonstrates a high operating voltage up to 2.2.V and long lifespan beyond 12.,000 cycles.

关键词： Zn-ion supercapacitors Zn metal anode Electrolyte engineering Hydrogen bonds Solvation structures

Preparation of grain size controlled boron-doped diamond thin films and their applications in selective detection of glucose in basic solutions

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Science china Chemistry 2010年第6期53卷 1378-1384页

作者： ZHAO JianWen1,2.WANG JinLiang3,ZHI JinFang3 & zhang ZhiMing4 1College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,china 2.chools of Materials Science and Engineering,Nanyang Technological University,639798,Singapore 3Laboratory of Organic Optoelectronic Functional Materials and Molecular Engineering,{2. Institute of physics and Chemistry & Graduate University of Chinese Academy of Sciences,beijing 100080,china 4Research Institute of Micro-Nano Science and Technology,Shanghai Jiao Tong University,Shanghai 2.0030,china 1. College of Chemistry and Chemical Engineering Jishou University Jishou 416000 China2. Schools of Materials Science and Engineering Nanyang Technological University 639798 Singapore Singapore3. Laboratory of Organic Optoelectronic Functional Materials and Molecular Engineering Technical Institute of Physics and Chemistry & Graduate University of Chinese Academy of Sciences Beijing 100080 China4. Research Institute of Micro-Nano Science and Technology Shanghai Jiao Tong University Shanghai 200030 China

Boron-doped diamond (BDD) thin films with different crystal grain sizes were prepared by controlling the reacting gas pressure using hot filament chemical vapor deposition (HFCVD).The morphologies and structures of the prepared diamond thin films were characterized by scanning electron microscopy (SEM) and Raman *** electrochemical responses of K4Fe(CN)6 on different BDD electrodes were *** results suggested that electron transfer was faster at the boron-doped nanocrystalline diamond (BDND) thin film electrodes in comparison with that at other BDD thin film *** prepared BDD thin film electrodes without any modification were used to directly detect glucose in the basic *** results showed that the as-prepared BDD thin film electrodes exhibited good selectivity for detecting glucose in the presence of ascorbic acid (AA) and uric acid (UA).The higher sensitivity was observed on the BDND thin film grown on the boron-doped microcrystalline diamond (BDMD) thin film surface,and the linear response range,sensitivity and the low detection limit were 0.2.–10 mM,189.1 μA mmol-1 cm-2.and 2. μM (S/N=3) for glucose in the presence of AA and UA,respectively.

关键词： diamond thin films electrochemical properties selective glucose detection

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On γ-ray laser

Chinese Science Bulletin 2001年第15期46卷 1238-1242页

作者： qiren zhang Chunyuan Gao Shude Yao department of technical {2. Peking University Beijing China

We review various possibilities for realizing a γ-ray laser. We conclude that, similar to the free-electron laser, it is practical to generate the γ-ray laser by the stimulated emission of radiation from wiggling positrons channelled in a periodically bent crystal. It is the time to research this possibility both theoretically and experimentally with big efforts.

关键词： γ-ray laser.

Photochemical pollution in Lanzhou, china - A case study

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Journal of Environmental Sciences 1989年第1期1卷 31-37页

作者： Tang Xiaoyan , Li Jinglong, Dong ZhenXing, Wang Yuying,Wang Wenxing , Qi Liwen, Liu Xiling, zhang Yutian, zhang Xuejin,Tian Bingshen, Jin Suwen , Yang Lingqing and zhang Yixin department of technical physics,Peking University, beijing, china. Chinese Reaearch Academy of Eavironmental Sciences, beijing,china. Gansu Provincial Environmental Research Institute, Lanshou, china. Lanshou Petrochemical Engineering Institute, Lanshou, china.

The photochemical air pollution in Xigu district of Lanshou city, Gansu Province was studied during a period of 1981-1984. The extremely high NMHC/NOx ratio and ozone level elevation after rain have been noticed. A series of outdoor and indoor reaction chamber simulation experiments conducted in order to understand the specific conditions. The ozone formation under NMHC/NOx condition and the possible reason for high ozone concentration after rain are discussed.

关键词： photochemical smog oxone air pollution.

Damage Accumulation and Its Effect in Gallium Nitride Film by 2.8pb2.+ Ions of 1.1 MeV/u

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IMP & HIRFL Annual Report 2004年 91-92页

作者： zhang Chonghong, Song Yin, Sun Youmei, Chen Hong, Wang Zhiguang Yao Cunfeng, Zhao Zhiming, Ma Hongji and Nie Rui Institute of physics, Chinese Academy of Sciences, {2., china. department of technical physics, Peking University, {2. china.

Gallium nitride (GaN) has received great attention because its outstanding properties are suitable for the development of novel microelectronic and optoelectronic devices. Ion beam implantation/engineering is an attractive method for device techniques such as selective-area doping or dry etching. The understanding of the damage production in GaN bombarded with energetic ions is fundamentally useful for the solution of such technical issues. Compared with low-energy ion irradiation, effects of swift heavy ions which induce intensive electronic excitation in GaN have been seldom investigated.

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Large low-field reversible magnetocaloric effect in K_(3)Gd(PO_(4))_(2. at sub-Kelvin temperature

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Journal of Rare Earths 2024年第6期42卷 1087-1092,I0003页

作者： Haojie Wang Zhaojun Mo Jianjian Gong Heng Tu Guochun zhang Jun Shen School of Rare Earths University of Science and Technology of ChinaHefei230026China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou341119China Center for Crystal Research and Development Key Laboratory of Functional Crystals and Laser TechnologyKey Laboratory of CryogenicsTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing100190China department of Energy and PowerEngineering School of Mechanical EngineeringBeijing Institute of TechnologyBeijing100081China

We synthesized a potassium gadolinium phosphate K3Gd(PO_(4))_(2.with monoclinic structure(P2.(1/m))by the high-temperature solid-state reaction *** lattice constants obtained by Rietveld refinements of XRD curve are a=0.7411 nm,b=0.562. nm,and c=0.9433 *** and magnetocaloric properties of K_(3)Gd(PO_(4))_(2.were investigated in *** magnetic phase transition temperature of K3Gd(PO_(4))2.was determined by ultra-low temperature testing to be 0.58 K.K_(3)Gd(PO_(4))2.exhibits large magnetic entropy changes(-ΔSM).The maximum-ΔSM are 2..2.and 2..4 J/(kg·K)in the magnetic field variation(ΔH)of 1 and 2.T,respectively,which are larger than that of the commercial Gd_(3)Ga_(5)O_(12.(GGG).The maximum adiabatic temperature change(ΔT_(ad))reaches 5.91 K under a magnetic field change(ΔH)of 1 T.K_(3)Gd(PO_(4))_(2.is a potential magnetic refrigeration material for obtaining sub-Kelvin temperatures.

关键词： Ultra-low temperature Magnetocaloric effect Magnetic entropy change Magnetic refrigeration Rare earths

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FEL诱导半导体材料非线性光吸收

物理学报 2003年第6期52卷 1403-1407页

作者：江俊李宁陈贵宾陆卫王明凯杨学平吴刚范耀辉李永贵袁先漳中国科学院上海技术物理研究所红外物理国家重点实验室上海200083 中国科学院高能物理研究所自由电子激光实验室北京100080 温州师范学院物理与电子信息科学系温州325027

应用北京自由电子激光 (BFEL)对典型的红外光电子材料Hg1 -xCdxTe,InSb和InAs进行了非线性光吸收研究 .利用FEL的高光子密度和皮秒量级的短脉冲宽度特性 ,研究了双光子吸收 (TPA)以及光生载流子吸收 (FCA)共同作用机理 ,从实验上直接证... 详细信息

应用北京自由电子激光 (BFEL)对典型的红外光电子材料Hg1 -xCdxTe,InSb和InAs进行了非线性光吸收研究 .利用FEL的高光子密度和皮秒量级的短脉冲宽度特性 ,研究了双光子吸收 (TPA)以及光生载流子吸收 (FCA)共同作用机理 ,从实验上直接证实了在强入射能量下 ,FCA是不可忽略的光吸收过程。

关键词： FEL 自由电子激光半导体材料非线性光吸收双光子吸收光生载流子吸收 Hg1-xCdxTe InSb InAs 碲镉汞化合物砷化铟锑化铟

Enhanced Defect Accumulation and Erosion in GaN Bombarded with Low-energy Highly Charged Heavy Ions

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IMP & HIRFL Annual Report 2004年 89-90页

作者： zhang Chonghong, Sun Youmei, Song Yin, Chen Hong, Zhao Zhiming, Yao Cunfeng Wang Zhiguang, Liu Cunbao, Yang Yitao, Ma Hongji and Nie Rui 'Institute of physics, Chinese Academy of Sciences, {2., china. department of technical physics, Peking University, {2., china.

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