期刊
RSC ADVANCES
卷 10, 期 2, 页码 620-625出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ra08402a
关键词
-
资金
- National Natural Science Foundation of China [21975158]
We report a low-cost hydrogel electrolyte by adding 3 wt% poly(acrylate sodium) (PAAS) into 1 M Na2SO4 aqueous electrolyte, which achieves a widened electrochemical stability window (ESW) of 2.45 V on stainless steel current collector from 2.12 V in 1 M Na2SO4 aqueous electrolytes (AE). Moreover, the H-2 evolution potential reaches -1.75 V vs. Ag/AgCl on titanium current collector. The results reveal that the polymer network structure of PAAS has the ability to interact with water molecules and thus the hydrogen evolution reaction can be limited effectively, which broadens the ESW of aqueous electrolyte and allows the reversible Na-ion intercalation/deintercalation of Na3V2(PO4)(3) as an anode material in aqueous electrolyte reported for the first time.
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