Details

Autor(en) / Beteiligte

• Liu, Bo
• Wei, Cong
• Zhu, Zixuan
• Fang, Yanyan
• Bian, Zenan
• Lei, Xin
• Zhou, Ya
• Tang, Chongyang
• Qian, Yitai
• Wang, Gongming

Titel

Regulating Surface Reaction Kinetics through Ligand Field Effects for Fast and Reversible Aqueous Zinc Batteries

Ist Teil von

• Angewandte Chemie International Edition, 2022-11, Vol.61 (44), p.e202212780-n/a

Auflage

International ed. in English

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Designing water‐deficient solvation sheath of Zn2+ by ligand substitution is a widely used strategy to protect Zn metal anode, yet the intrinsic tradeoff between Zn nucleation/dissolution kinetics and the side hydrogen evolution reaction (HER) remains a huge challenge. Herein, we find boric acid (BA) with moderate ligand field interaction can partially replace H2O molecules in the solvation sheath of Zn2+, forming a stable water‐deficient solvation sheath. It enables fast Zn nucleation/dissolution kinetics and substantially suppressed HER. Crucially, by systematically comparing the ligand field strength and solvation energies between BA and the ever‐reported electrolyte additives, we also find that the solvation energy has a strong correlation with Zn nucleation/dissolution kinetics and HER inhibition ability, displaying a classic volcano behavior. The modulation map could provide valuable insights for solvation sheath design of zinc batteries and beyond. The boron acid additive can alleviate the intrinsic tradeoff between Zn nucleation/dissolution kinetics and the interfacial hydrogen evolution reaction by modulating the solvation sheath. The formed solvation structure with moderate ligand field strength enables fast and highly reversible Zn deposition.