Chemical Communications ( IF 6.222 ), DOI: 10.1039/d1cc01486b
Jun Qiao, Meng Qin, Yong-Miao Shen, Jianyu Cao, Zhidong Chen, Juan Xu
A rocking-chair aqueous proton battery is assembled by using dipyridophenazine and indium hexacyanoferrate as the anode and cathode materials, respectively. The reversible amination of redox-active phenazine moieties in dipyridophenazine and fast intercalation–deintercalation of protons in hexacyanoferrate enable the aqueous proton battery to achieve a reversible specific capacity of 37 mA h g?1 at 1 A g?1, good cycling stability with 76.1% capacity retention over 3000 cycles and excellent rate capability.
我院曹劍瑜-許娟團隊最近在Chemical Communications上發(fā)表研究論文(DOI: 10.1039/d1cc01486b)。水系可充電電池通常以金屬離子為電荷載體。然而，金屬元素要么儲量有限，要么開采成本相對較高。在所有離子中質(zhì)子(氫離子)是最輕和最小的，在水溶液中具有最快的遷移速率，而且在地球上資源豐富。本論文設(shè)計了一種基于有機陽極和無機配合物陰極的水系可充電質(zhì)子電池。陽極二吡啶吩嗪中氧化還原活性吡嗪單元的可逆胺化和陰極銦普魯士藍中質(zhì)子的快速嵌入-脫嵌使該電池在1 Ag -1下可實現(xiàn)37 mAhg -1的可逆比容量，并展示了良好循環(huán)穩(wěn)定性和出色的倍率性能。此項研究得到了國家自然科學(xué)基金和江蘇省綠色催化重點實驗室科學(xué)基金的資助。
