Abstract
碳酸二羟基.四氨合铂(IV)二水合物的合成、表征及性质
Synthesis, Characterization and Property of [Pt(NH3)4(OH)2]CO3.2H2O
Received:June 12, 2019  
DOI:
中文关键词: 结构化学  铂(IV)化合物  前驱体  晶体结构  热重-差热  催化
英文关键词: structural chemistry  platinum compound  crystal structure  TG-DTA  catalytic
基金项目:云南省院所技术开发专项(2018DC005)
Author NameAffiliation
YU Juan State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China 
LIU Jun State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China 
JU Shaoying State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China 
ZHANG Yangyang State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China 
LI Yanqiong State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China 
CHEN Yong State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China 
CHEN Li State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals, Kunming 650106, China 
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中文摘要:
      合成了一种用作前驱体的,具有八面体结构新型水溶性的金属复合离子型化合物碳酸二羟基.四氨合铂(IV)二水合物([Pt(NH3)4(OH)2]CO3.2H2O),用元素分析和X射线单晶衍射仪(XRD)对其结构进行了表征,用热重-差热(TG-TDA)测试其热分解特性,并对比评价制备DOC催化剂的性能。结果表明,化合物为单斜晶系、P21/c空间群,晶胞参数为:a=0.88191(14) nm,b=1.17817(18) nm,c=1.01533(16) nm,V=0.9978(3) nm3Z=4,R1=0.0403,wR2=0.1235,R1=0.0466,wR2=0.1353。其晶体结构为以Pt(IV)为中心与4个NH3和2个羟基配位形成八面体的二价阳离子;TG-DTA测试显示化合物分解峰出现在223.8℃;制备得到的DOC催化剂催化活性和起燃温度优于传统前驱体化合物。
英文摘要:
      A new water-soluble, ion-type platinum(IV) complex, [Pt(NH3)4(OH)2]CO3.2H2O, was synthesized and characterized by the element analysis and single crystal X-ray diffraction. Its thermal decomposition characteristics were characterized by TG-TDA. Its cystal belongs to monoclinic space group P21/c, and its unit cell parameters are: a=0.88191(14) nm, b=1.17817(18) nm, c=1.01533(16) nm and V=0.9978(3) nm3; Z=4, R1=0.0403, wR2=0.1235, R1=0.0466, wR2=0.1353. The crystal data shows that Pt(IV) acted as the center ion coordinates with four NH3 in a square planar and two hydroxyl groups in opposite axial position, forming a octahedral bivalent cation. TG-TDA results showed that the peak decomposition temperature was 223.8℃. The prepared diesel oxidation catalysts using the compound have better catalytic activity and light-off temperature than conventional precursors.
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