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首页> 外文期刊>ACS applied materials & interfaces >Ultrahigh Proton Conduction in Two Highly Stable Ferrocenyl Carboxylate Frameworks
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Ultrahigh Proton Conduction in Two Highly Stable Ferrocenyl Carboxylate Frameworks

机译：超高质子传导在两个高度稳定的二氧化环羧酸盐框架中

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Nowadays, although research of proton conductive materials has been extended from traditional sulfonated polymers to novel crystalline solid materials such as MOFs, COFs, and HOFs, research on crystalline ferrocene-based carboxylate materials is very limited. Herein, we selected two hydrogen-bonded and pi - pi interactions-supported ferrocenyl carboxylate frameworks (FCFs), [FcCO-(CH2)(2)COOH] (FCF 1) and [FcCOOH] (FCF 2) (Fc = (eta(5)-C5H5)Fe(eta(5)-C5H4)) to fully investigate their water-mediated proton conduction. Their excellent thermal, water, and chemical stabilities were confirmed by the means of thermogravimetric analyses, PXRD, and SEM determinations. The two FCFs indicate temperature- and humidity-dependent proton conductive features. Intriguingly, their ultrahigh proton conductivities are 1.17 X 10(-1) and 1.01 X 10(-2) S/cm, respectively, under 100 degrees C and 98% RH, which not only are comparable to the commercial Nafion membranes but also rank among the highest performing MOFs, HOFs, and COFs ever described. On the basis of the structural analysis, calculated E-a value, H2O vapor adsorption, PXRD, and SEM measurements, reasonable conduction mechanisms are highlighted. Our research provides a novel inspiration for finding new high proton conducting crystalline solid materials. Importantly, the outstanding conducting performance of 1 and 2 suggests their, hopefully, potential in fuel cells and related electrochemical fields.
机译：如今，虽然对质子导电材料的研究已经从传统的磺化聚合物延伸到新的晶体固体材料如Mofs，COF和Hofs，但基于晶体茂铁基羧酸酯材料的研究非常有限。在此，我们选择了两个氢键合和PI - PI相互作用负载的铁茂糖基羧酸铁烯基（FCFS），[FCCO-（CH2）（2）COOH]（FCF1）和[FCCOH]（FCF 2）（FC =（ETA （5）-C5H5）Fe（ETA（5）-C5H4））以充分研究其水介导的质子传导。通过热重分析，PXRD和SEM测定来确认它们优异的热量，水和化学稳定性。两个FCF表示温度和湿度依赖性质子导电特征。有趣的是，它们的超高型质子电导率分别为1.17×10（-1）和1.01×10（-2）S / cm，在100摄氏度和98％RH下，不仅与商业Nafion膜相当，而且还具有等级在曾描述的最高性交的MOFS，HOF和COF中。在结构分析的基础上，计算E-A值，H2O蒸汽吸附，PXRD和SEM测量，突出了合理的传导机制。我们的研究提供了一种用于寻找新的高质量传导晶体固体材料的新颖的灵感。重要的是，突出的导电性能为1和2表明它们的潜在燃料电池和相关电化学领域。

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