Nitrogen-Rich Energetic Metal-Organic Framework: Synthesis, Structure, Properties, and Thermal Behaviors of Pb(II) Complex Based on N,N-Bis(1H-tetrazole-5-yl)-Amine

Qiangqiang Liu; Bo Jin; Qingchun Zhang; Yu Shang; Zhicheng Guo; Bisheng Tan; Rufang Peng

doi:10.3390/ma9080681

Nitrogen-Rich Energetic Metal-Organic Framework: Synthesis, Structure, Properties, and Thermal Behaviors of Pb(II) Complex Based on N,N-Bis(1H-tetrazole-5-yl)-Amine

Materials (Basel). 2016 Aug 10;9(8):681. doi: 10.3390/ma9080681.

Authors

Qiangqiang Liu^{1

2}, Bo Jin³, Qingchun Zhang⁴, Yu Shang⁵, Zhicheng Guo⁶, Bisheng Tan⁷, Rufang Peng^{8

9}

Affiliations

¹ Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621010, China. liuqq006@mail.ustc.edu.cn.
² State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China. liuqq006@mail.ustc.edu.cn.
³ State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China. jinbo0428@163.com.
⁴ State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China. zhangqingchun@live.cn.
⁵ State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China. 410621b03kq.cdb@sina.cn.
⁶ School of National Defence Science and Technology, Southwest University of Science and Technology, Mianyang 621010, China. zcguo@swust.edu.cn.
⁷ Institute of Chemical Materials, Chinese Academy of Engineering Physics, Mianyang 621010, China. cqtbs@163.com.
⁸ Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621010, China. rfpeng2006@163.com.
⁹ State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China. rfpeng2006@163.com.

Abstract

The focus of energetic materials is on searching for a high-energy, high-density, insensitive material. Previous investigations have shown that 3D energetic metal-organic frameworks (E-MOFs) have great potential and advantages in this field. A nitrogen-rich E-MOF, Pb(bta)·2H₂O [N% = 31.98%, H₂bta = N,N-Bis(1H-tetrazole-5-yl)-amine], was prepared through a one-step hydrothermal reaction in this study. Its crystal structure was determined through single-crystal X-ray diffraction, Fourier transform infrared spectroscopy, and elemental analysis. The complex has high heat denotation (16.142 kJ·cm^-3), high density (3.250 g·cm^-3), and good thermostability (T_dec = 614.9 K, 5 K·min^-1). The detonation pressure and velocity obtained through theoretical calculations were 43.47 GPa and 8.963 km·s^-1, respectively. The sensitivity test showed that the complex is an impact-insensitive material (IS > 40 J). The thermal decomposition process and kinetic parameters of the complex were also investigated through thermogravimetry and differential scanning calorimetry. Non-isothermal kinetic parameters were calculated through the methods of Kissinger and Ozawa-Doyle. Results highlighted the nitrogen-rich MOF as a potential energetic material.

Keywords: energetic MOFs; energetic materials; nitrogen-rich materials.