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Structural insights into lithium-deficient type Li-rich layered oxide for high-performance cathode

Dongyu He, Wenxin Tong, Jia Zhang, Zhongyuan Huang, Ziwei Chen, Maolin Yang, Rui Wang, Wenguang Zhao, Zhewen Ma*, Yinguo Xiao* Submit a Manuscript
Solvent-free mechanochemical synthesis of organic proton conducting salts incorporating imidazole and dicarboxylic acids

Yating Zhou, Anucha Koedtruad, Zhenhong Tan, Dong Zhang, Lingxiang Bao, Yajun Yue, Jianyuan Wu, Juping Xu, Yuanguang Xia, Wen Yin, Maxim Avdeev, Wang Hay Kan, Takashi Kamiyama, Ping Miao*

Chin. J. Struct. Chem., 2023, 42: 100059. DOI: 10.1016/j.cjsc.2023.100059

May 15, 2023

Organic salts; Proton conducting; Mechanochemistry; Powder neutron diffraction; Solventless synthesis; Manual grinding; Conductivity; Ea energy


Solventless mechanochemical synthesis by manual grinding was applied to grow organic proton conducting salts, imidazole-succinic acid (C3H4N2-HOOC(CH2)2COOH) and imidazole-glutaric acid (C3H4N2-HOOC(CH2)3COOH). This synthesis method induces crystallization and provides the phase-pure compounds. The compounds exhibit different electric conducting behavior and activation energies Ea compared with the reported single crystals obtained from the solution method. The difference in conducting property can be related to intrinsic defects and structural disorder introduced by mechanochemical grinding, indicating that the mechanochemical method bears strong capability for tuning conductivities. Moreover, complete deuteration of the organic salts is achieved by the method. The mechanochemical synthesis of organic salts also holds high potential for the actual industrialized large-scale production.

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