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Chinese Optics Letters 2012年第9期10卷 46-48页

作者：多丽萍李国富于海军汪健金玉奇桑凤亭 Key Laboratory of Chemical Lasers Dalian Institute of Chemical PhysicsChinese Academy of Sciences

A pulsed chemical oxygen-iodine laser （COIL） using atomic iodine generated by volumetric discharge of CHaI is developed and tested. COIL with a gain length of 60 cm is energized by a square pipe-array jet singlet oxygen generator with basic hydrogen peroxide pumping circulations and operated at subsonic gas flow. Maximum output energy of 4.3 J, pulse duration of 50 #s, specific energy extraction from the active medium of 2.0 J/L, and the maximum chemical efficiency of 12.5% are achieved at a chlorine flow rate of 55 mmole/s.

关键词： Chemical oxygen iodine lasers chlorine Hydrogen peroxide Iodine

ELECTROCATALYTIC BEHAVIORS OF CER ON SOME METAL OXIDES IN CHLORIDE MELT AT 700℃

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中国有色金属学会会刊：英文版 1999年第2期9卷 174-178页

作者： Xie Zhong and Liu Yexiang Department of Nonferrous Metallurgy,Central South University of Technology, Changsha 410083, P. R. China T 中南工业大学有色冶金系湖南长沙 410083 中南工业大学有色冶金系湖南长沙

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关键词： chlorine evolution reactionelectrocatalysischloride meltoxide electrode

A Non-Fullerene Acceptor with Chlorinated Thienyl Conjugated Side Chains for High-Performance Polymer Solar Cells via Toluene Processing

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Chinese Journal of Chemistry 2020年第7期38卷 697-702页

作者： Cuangwei Li Jingnan Wu Jin Fang Xia Guo Lei Zhu Feng Liu Maojie Zhang Yongfang Li Laboratory of Advanced Optoelectronic Materials College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhouJiangsu 215123China Department of Physics and Astronomy and Collaborative Innovation Center of IFSA(CICIFSA) Shanghai Jiao Tong UniversityShanghai 200240China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China

Small molecular acceptors(SMAs)BTC-2F and BTH-2F,based on heptacyclic benzodi(cyclopentadithiophene)electron-donating core(CBT)with chlorinated-thienyl conjugated and thienyl conjugated side chains,respectively,are designed and synthesized.Compared with non-chlorine acceptor BTH-2F,BTC-2F exhibits slightly blue-shifted absorption spectra,similar the lowest unoccupied molecular orbital(LUMO)(-3.91 eV);deeper highest occupied molecular orbital(HOMO)energy level and higher electron mobility than that of BTH-2F.PM6,a wide bandgap polymer,is selected as the donor material to construct bulk heterojunction polymer solar cells processed with nonhalogenated solvent toluene.The optimized PM6:BTC-2F-based device presents a 12.9%power conversion efficiency(PCE),while the PCE of PM6:BTH-2F-based device is only 11.3%.The results suggest that it is an effective strategy to optimize the photoelectric properties of SMAs by incorporating chlorine atom into the conjugated side chains.

关键词： conjugated chlorine chains

An ab initio MO study on the direct and migratory reaction mechanism for the formation of HF in H+ClF system

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Science China Chemistry 1998年第1期41卷 97-102页

作者：陈兰潘荫明蔡遵生赵学庄 Department of Chemistry Nankai University Tianjin China

An ab initio MO method has been used to calculate the potential energy surface for the formation of HF when H reacts with ClF. The various transition states possibly related to forming HF were optimized. An IRC calculation starting from the collinear F centered transition state was performed and energies of a series of points with bending configurations were also calculated to determine the direct reaction path leading to HF product. Another IRC calculation starting from the H centered transition state was run to determine the migratory path to forming HF. By doing so, the Polanyi’s assumption that it would involve the direct and a migratory mechanisms for the formation of HF when H reacts with ClF has been verified theoretically.

关键词： chlorine fluoride ab initio calculation potential energy surface.

Proportion of bromo-DBPs in total DBPs during reclaimed-water chlorination and its related influencing factors

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Science China Chemistry 2008年第10期51卷 1000-1008页

作者： Hua Zhang JiuHui Qu HuiJuan Liu Xu Zhao State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

During the chlorine disinfection of reclaimed-water, the proportion of bromo-disinfection by-products (bromo-DBPs) in total DBPs is affected by chlorine dosage, reaction time, pH, ammonia nitrogen (NH3-N) and preozonation. Results show that bromo-trihalomethanes (bromo-THMs) form more easily than bromo-haloacetic acids (bromo-HAAs) and bromine incorporation in DBPs decreases with the increase of chlorine dosage. Within 5 h, bromine incorporation in THMs (n(Br)) increases but bromine incorpo-ration in HAAs (n′(Br)) decreases with the extension of reaction time; however, n(Br) decreases and n′(Br) keeps relatively constant at a longer reaction time. Furthermore, bromine incorporation in DBPs is low under acidic and alkaline conditions. The increase of NH3-N concentration inhibits the formation of chloro-DBPs, resulting in the increase of n(Br) and n′(Br) to some extent. Preozonation enhances the formation of HOBr and the increase of bromine incorporation in DBPs; however, ozone of a high con-centration oxidizes HOBr to its salt form, leading to the decrease of bromine incorporation in DBPs.

关键词： bromine chlorine disinfection bromo-DBP

Hydrogen Diffusion in Aluminum Melts: An ab initio Molecular Dynamics Study

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Journal of Wuhan University of Technology(Materials Science) 2012年第3期27卷 560-567页

作者：柳洋孙宝德 State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University

The diffusion process of hydrogen in aluminum melts was investigated by molecular dynamics simulation. The pair correlation function, first peak position, and coordination number was calculated and differences in the structural properties among Al-H, Cl-H, and Al-Cl pair were examined. The mechanism of chlorine on improving hydrogen diffusion was discussed. From an ab initio molecular dynamics calculations, the diffusivity of hydrogen in liquid aluminum as D（T）=（0.118×10-4 m2/s）exp（-0.316 eV/kT） is obtained, which is in good agreement with the experimental data. Correspondingly the diffusivity with presence of chlorine is promoted as D（T）=（0.09×10-4 m2/s）exp（-0.251 eV/kT）. It can be concluded that the diffusion of hydrogen in aluminum melts can be enhanced in the presence of chlorine.

关键词： ab initio molecular dynamics hydrogen in aluminum melts chlorine diffusion coefficient activation energy barrier

pH effect on the formation of THM and HAA disinfection byproducts and potential control strategies for food processing

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Journal of Integrative Agriculture 2017年第12期16卷 2914-2923页

作者： Yen-Con Hung Brian W.Waters Veerachandra K.Yemmireddy Ching-Hua Huang Department of Food Science and Technology The University of Georgia Department of Food Science and Technology The Ohio State University School of Civil and Environmental Engineering Georgia Institute of Technology

chlorine-based sanitizers have seen wide spread use in food sanitation. The reaction of chlorine species with organic matter is a concern for two reasons. Available chlorine can be “used up” by organic compounds resulting in a lower amount of chlorine available for disinfection. Another concern is that some forms of chlorine can react with some organic compounds to form toxic halogenated disinfection byproducts（DBPs）. Many studies have been conducted to evaluate the role of hypochlorous acid（HOCl） and hypochlorite ion（OCl–） in the production of DBPs with a particular interest in the production of trihalomethanes（THMs） and haloacetic acids（HAAs）. Since most of the chlorine reactions are pH dependent, pH is found to have a significant effect on the formation of chlorine DBPs. In many cases, the concentration of THMs decreases and HAAs increases as pH decreases. pH also plays an important role in the determination of the type and amount of DBPs formed, with lower, more acidic, pHs resulting in the formation of less chloroform. This review summarizes the information from the literature on the role of chlorine-based sanitizers as affected by pH in the formation of different types of DBPs. Alternative novel strategies to minimize the formation of DBPs are also discussed.

关键词： sanitizer chlorine disinfection byproducts pH hypochlorite

A New Method to Prepare Boron Nitride Thin Films

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Chinese Physics Letters 2005年第5期22卷 1205-1206页

作者：刘立华李英爱冯伟李卫青赵春红王玉新赵永年 NationalKeyLaboratoryofSuperhardMaterials JilinUniversityChangchun130012//CollegeofPhysicsJilinNormalUniversitySiping136000 NationalKeyLaboratoryofSuperhardMaterials JilinUniversityChangchun130012

We report a new method to prepare boron nitride (BN) thin films on Si (100) substrates in an Ar–N2-BCl3-H2 gas system by magnetron arc enhanced plasma chemical vapour deposition. Fourier transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD) are used to characterize the films. The FTIR spectra show that the deposited boron nitride films experienced a transition from pure h-BN phase to a cubic-containing phase with the variation of arc current ranging from 10A to 18A. The BN film with 42% c-BN was obtained without substrate bias voltage. In the gas system of Ar–N2–BCl3–H2, h-BN can be preferentially etched by chlorine. The chemical etching effect of chlorine allows the formation of c-BN without substrate bias voltage, which may develop a new perspective for the deposition of high quality c-BN film with low stress.

关键词： chlorine

Experiment study on water-rock interaction about gold activation and migration in different solutions

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Journal of Central South University of Technology 2001年第2期8卷 105-107页

作者： DAI Ta gen, GU Li, QIU Dong sheng, XIE Wen bing (College of Resources, Environment and Civil Engineering, Central South University, Changsha 410083, China) College of Resources Environment and Civil Engineering Central South University Changsha China

The interactions on gold active and migratory quantities and rates between tuffaceous slate and solu tions with different compositions were experimentally studied at 200 ℃, 20 MPa, in a high pressure apparatus. After reaction, tuffaceous slate became light colored and soft, and its mass density reduced. The amount of gold extracted from tuffaceous slate ranges widely, from 0 027 to 0 234 μg/g. chlorine solution may activate appreciable amount of gold, and the gold migratory rate is high enough, from 50 70% to 92 30%, which reveals that sulphur and chlorine work together in solutions to accelerate gold activation and migration, and to realize gold mineralization in favorable places.

关键词： water rock interaction activation migration chlorine sulphur gold

Environmental Issues Caused by High-Dose Disinfection Need Urgent Attention

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环境与健康(英文) 2023年第1期1卷 3-5页

作者： Chenyuan Dang Zhenbing Wu Jie Fu School of Environmental Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China

Since the end of 2019,the severe acute respiratory syndrome-coronavirus 2(SARS-CoV-2)has spread and infected people all over the world.Up to March 21,2023,more than 760 million people were infected and about 7 million died worldwide(https://covid19.***.int/).In an effort to interrupt the spread of coronavirus disease 2019(COVID-19),high-dose of chlorine-containing disinfectants were utilized in medical institutions and public spaces,including sodium hypochlorite,calcium hypochlorite,chloramine,chlorine dioxide,triclosan,and sodium dichloroisocyanurate.For instance,according to the regulation of the Chinese govern-ment,the effective chlorine dosage is up to 50−80 mg/L for the disinfection of sewage discharged by infectious disease medical diagnosis and treatment institutions receiving COVID-19 patients.

关键词： chlorine dioxide instance