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  • 安海艳 ( 副教授 )

    的个人主页 http://faculty.dlut.edu.cn/2007011076/en/index.htm

  •   副教授   博士生导师   硕士生导师
论文成果 当前位置: 中文主页 >> 科学研究 >> 论文成果
Rapid Destruction of Two Types of Chemical Warfare Agent Simulants by Hybrid Polyoxomolybdates Modified by Carboxylic Acid Ligands

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论文类型:期刊论文
第一作者:Hou, Yujiao
通讯作者:An, HY (reprint author), Dalian Univ Technol, Coll Chem, Dalian 116023, Peoples R China.
合写作者:An, Haiyan,Zhang, Yumeng,Hu, Tao,Yang, Wei,Chang, Shenzhen
发表时间:2018-07-01
发表刊物:ACS CATALYSIS
收录刊物:SCIE
卷号:8
期号:7
页面范围:6062-6069
ISSN号:2155-5435
关键字:hybrid polyoxomolybdates; carboxylic acids; catalysis; chemical warfare agents; destruction
摘要:Four chain-like hybrid compounds based on mixed carboxylic acid ligands-modified polyoxomolybdates, K2H[(H2O)(4)M] [AsMo6O21(Ala) (PHBA)(2)]center dot nH(2)O 1-4 (M = Co, Ni, Zn, Mn; Ala = alanine; PHBA = p-hydroxybenzonic acid), were prepared and characterized by elemental analysis, IR spectroscopy, solid diffuse reflective spectroscopy, TG analysis, powder X-ray diffraction, and single-crystal X-ray diffraction. Four isostructural compounds 1-4 not only represent the extended architectures constructed from two different organic ligands-modified polyoxometalates but also can rapidly catalyze the degradation of two chemical warfare agent simulants, 2-chloroethyl ethyl sulfide (GEES) and diethyl cyanophosphonate (DECP), at room temperature. The catalytic results were analyzed and confirmed by GC-FID, GC-MS, and (HNMR)-H-1 techniques. Within 5 min, CEES was high-selectively oxidized to the corresponding nontoxic 2-chloroethyl ethyl sulfoxide (CEESO) using heterogeneous catalyst 1 with the oxidant H2O2 (conversion % = 98.5%, selectivity % > 99.9%). FTIR, PXRD techniques, and the following cycles also ascertained the stability and structural integrity of 1 in the oxidation reaction. Within 10 min, DECP can be almost entirely hydrolyzed to the nontoxic products catalyzed by 1 (conversion % = 99.0%). To our knowledge, they are in the rank of highly active catalysts for the degradation of CEES and DECP to date, accompanied by the advantages of steady reuse.

 

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