Scholarlink

<p>The ammonia system—compared to traditional acid system—presents considerable benefits when treating zinc (Zn) secondary resources that contain high concentrations of iron, fluorine, chlorine, and low Zn. However, the ammonia-based approach is still facing challenges in maintaining high-quality and efficient Zn electrodeposition. Herein, we propose an efficient ammonia system—enhanced with polyethylene glycol with a molecular weight of 20,000 (PEG20000) and bone glue (BG)—for smooth, compact, and fine-grain Zn electrodeposition. In the bench-scale operation, we achieve a notably low energy consumption of 2415.58&#xa0;kW&#xa0;h/t Zn and a high current efficiency of 97.46%, with smooth and compact zinc deposit in fine-grained size of 25.4&#xa0;nm. Electrochemical behavior analysis indicates that introducing the synergistic PEG20000 and BG promotes electrodeposition polarization and a three-dimensional instantaneous nucleation mode. Overall, the integration of PEG20000 and BG as additives in the ammonia system emerges as a technically and economically feasible strategy for zinc electrodeposition.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Enabling High-Quality and Efficient Zinc Electrodeposition with Enhanced Ammonia System Using Synergistic Additives

  • 期刊论文

  • 发表日期：

    2025年9月18日

查看全文
  • Liang-hong Duan,
  • Sheng-hai Yang,
  • Yong-ming Chen,
  • Zhi-peng Xu,
  • Xin-bing Xia,
  • Chang-hong Wang

摘要

The ammonia system—compared to traditional acid system—presents considerable benefits when treating zinc (Zn) secondary resources that contain high concentrations of iron, fluorine, chlorine, and low Zn. However, the ammonia-based approach is still facing challenges in maintaining high-quality and efficient Zn electrodeposition. Herein, we propose an efficient ammonia system—enhanced with polyethylene glycol with a molecular weight of 20,000 (PEG20000) and bone glue (BG)—for smooth, compact, and fine-grain Zn electrodeposition. In the bench-scale operation, we achieve a notably low energy consumption of 2415.58 kW h/t Zn and a high current efficiency of 97.46%, with smooth and compact zinc deposit in fine-grained size of 25.4 nm. Electrochemical behavior analysis indicates that introducing the synergistic PEG20000 and BG promotes electrodeposition polarization and a three-dimensional instantaneous nucleation mode. Overall, the integration of PEG20000 and BG as additives in the ammonia system emerges as a technically and economically feasible strategy for zinc electrodeposition.