基于原子对分布函数的纳米Ni_(2)(OH)_(3)NO_(3)原子结构解析  

The Atomic Structure Analysis of Nanoscale Ni_2(OH)_3NO_(3) Based on the Atomic Pair Distribution Function

作　　者：齐东梅 展思博 黄德军 董洪亮 吕喜蕾 杏朝刚 吕光烈 袁京群 QI Dongmei;ZHAN Sibo;HUANG Dejun;DONG Hongliang;LYU Xilei;XING Chaogang;LYU Guanglie;YUAN Jingqun(Analysis Center of Agrobiology and Environmental Sciences,Zhejiang University,Hangzhou 310058,China;Spectris China Instrument System Co.,Ltd.,Shanghai 201109,China;Center for High Pressure Science&Technology Advanced Research,Beijing 100193,China;College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学农生环测试中心,浙江杭州310058 [2]上海思百吉仪器系统有限公司,上海201109 [3]北京高压科学研究中心,北京100193 [4]浙江大学化学工程与生物工程学院,浙江杭州310027

出　　处：《生物化工》2023年第4期65-68,共4页Biological Chemical Engineering

基　　金：浙江大学实验技术研究项目(SJS202018)。

摘　　要：近年来,层状羟基硝酸盐[M_(2)(OH)_(3)NO_(3),M=Ni/Cu/Zn/Mg]作为制备特定氧化物的高效前驱体受到了广泛关注。羟基硝酸镍[Ni_(2)(OH)_(3)NO_(3)]作为其中的重要组成部分,其结构至今未有报道。本文利用透射电镜、原子对分布函数、红外光谱和热重分析技术对纳米Ni_(2)(OH)_(3)NO_(3)的微观形貌、原子结构和样品组成等进行表征。研究表明,Ni_(2)(OH)_(3)NO_(3)属单斜晶系,P21空间群,晶胞参数a=5.599?,b=6.055?,c=6.710?,β=90.60°,晶胞体积237.656?~3,每个晶胞中含2个羟基硝酸镍分子。Recently,layered hydroxide nitrates[M_2(OH)_3NO_3,M=Ni,Cu,Zn,Mg]have drawn much attentions as efficient precursors for fabrication of tailored oxides,as an important part of which,the structure of nickel hydroxynitrate[Ni_2(OH)_3NO_3]has not been reported yet.In this paper,the morphology,atomic structure and composition of nanoscale Ni_2(OH)_3NO_(3) has been characterized by transmission electron microscope,atomic pair distribution function,fourier transform infrared spectroscopy and thermogravimetric curve.The results show that Ni_2(OH)_3NO_(3) crystal belongs to monocline system with P21 space group,a=5.599?,b=6.055?,c=6.710?,β=90.60°.The cell volume is 237.656?~3 and each cell contains two Ni_2(OH)_3NO_(3) molecules.

关 键 词：羟基硝酸镍 原子结构 原子对分布函数 

分 类 号：O562.2[理学—原子与分子物理]