Water assisted high proton conductance in a highly thermally stable and superior water-stable open-framework cobalt phosphate
Water assisted high proton conductance in a highly thermally stable and superior water-stable open-framework cobalt phosphate
复制标题
水辅助高热稳定性和优异水稳定性开放框架磷酸钴的高质子电导
DOI：
10.1039/c6dt04133g
复制
发表时间：
2016-01-01
影响因子：
4
通讯作者：
Ren, Xiao-Ming
中科院分区：
文献类型：
--
作者：
Wang, Mei;Luo, Hong-Bin;Ren, Xiao-Ming
Proton-conducting materials show important technological applications as key components in energy conversion, electrochemical sensing and electrochromic devices; the exploration for new types of proton-conducting materials is crucial for the development of efficient electrochemical devices. In this study, we investigated the proton transport nature of an inorganic-organic hybrid crystal of open-framework cobalt phosphate, (C2N2H10)(0.5)CoPO4. The structure of the hybrid crystal consists of the [CoPO4](infinity)(-)anionic framework, and the proton carriers, H(2)en(2+) cations (en = ethylenediamine), are located in the pores to compensate the negative charges of the inorganic framework. The open-framework is thermally stable up to 653 K (380 degrees C) at least, and also shows superior water stability. The open-framework exhibits negligible conductance in an anhydrous environment even at 473 K; however, there is evident waterassisted proton conduction. The conductivity reaches 2.05 x 10(-3) S cm(-1) at 329 K and 98% RH. Such high proton conductivity can compete with numerous state-of-the-art MOFs/PCPs-based proton conductors, and this material has promising applications in diverse electrochemical devices.
