标题: Water adsorption and proton conduction of a cobalt(II) complex assembled by triazine-based polycarboxylate

作者: Feng, L (Feng, Lu); Zhou, M (Zhou, Min); Ye, F (Ye, Fan); Chen, C (Chen, Chang); Hou, HB (Hou, Haobo)

来源出版物: DALTON TRANSACTIONS  卷: 48  期: 40  页: 15192-15197  DOI: 10.1039/c9dt03038g  出版年: OCT 28 2019  

摘要: A new flexible triazine-based polycarboxylate coordination polymer, {[Co-3(H(3)TTHA)(2)(4,4'-bipy)(5)(H2O)(8)]center dot 12H(2)O}(n) (1), where H(6)TTHA = 1,3,5-triazine-2,4,6-triamine hexaacetic acid, has been synthesized under hydrothermal conditions and structurally characterized by infrared spectroscopy, elemental analysis, TGA, XRD and X-ray single-crystal diffraction. Structural analysis indicates that 1 displays a planar structure with alternate rectangular structures of 22.695 x 11.485 angstrom(2). The investigation of water vapor adsorption shows that the adsorption capacity of 1 is comparable to that of the typical adsorption material of MCM-41 with 73.86% (41.03 mmol g(-1)) water uptake at 90% relative humidity (RH). Based on the resistance to water and high-density hydrophilic units as well as abundant hydrogen-bonding networks in the complex, the proton conductivities of 1 under different conditions were measured. The results indicate that the proton conductivity values are highly temperature and relative humidity dependent, with the highest conductivity of nearly 10(-3) S cm(-1) at 353 K and 98% RH. The Arrhenius activation energy derived in the wide temperature range of 293-353 K is 0.32 eV, corresponding to a typical Grotthuss mechanism.

入藏号: WOS:000498919700030

语言: English

文献类型: Article

地址: [Feng, Lu; Zhou, Min; Ye, Fan; Chen, Chang; Hou, Haobo] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Hubei, Peoples R China.

通讯作者地址: Hou, HB (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Hubei, Peoples R China.

电子邮件地址: hhb-bhh@163.com

影响因子：4.052