Yitao Yang, Yihui Song, Fan Yang, Bo Yang, Yuanbin Wen, Chen Qing
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引用次数: 0
Abstract
Hydroxyl/amino-functionalized carbon dots (OH/NH2-CDs) are introduced as nanoscopic electrolyte additives to regulate Zn deposition texture in aqueous zinc metal batteries. Spectroscopic characterization and simplified calculations suggest interactions between Zn species and the O/N-containing CD surface, together with altered sulfate-associated ion pairing. Compared with OH-CDs, NH2-CDs, and physically mixed OH + NH2-CDs, OH/NH2-CDs exhibit the lowest Zn nucleation overpotential of 45 mV and a distinct Zn(002)/(101) texture distribution. These changes are accompanied by compact Zn deposition, stable Zn||Zn cycling for 1400 h, improved Zn||Cu reversibility, and enhanced Zn||MnO2 full-cell cycling. This work highlights surface-functionalized CDs as texture-regulating nanoadditives for aqueous zinc metal anodes.
期刊介绍：
ACS Applied Nano Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics and biology relevant to applications of nanomaterials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important applications of nanomaterials.
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