Rechargeable Zinc–Air Battery with Ultrahigh Power Density Based on Uniform N, Co Codoped Carbon Nanospheres,ACS Applied Materials & Interfaces

当前位置： X-MOL 学术 › ACS Appl. Mater. Interfaces › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Rechargeable Zinc–Air Battery with Ultrahigh Power Density Based on Uniform N, Co Codoped Carbon Nanospheres
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2019-11-18 , DOI: 10.1021/acsami.9b14165
Chenghang You , Xiaohong Gao , Qingqing Wang , Xiaobao Li , Shiyu Tan , Peiyan Xu , Dongqi Cai , Yanglin Weng , Chongtai Wang , Xinlong Tian ₁ , Shijun Liao ₂

Affiliation

Highly efficient catalysts for both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are key to the commercialization of rechargeable zinc–air batteries (ZABs). In this work, a catalyst with uniform nanospherical morphology was prepared from cobalt nitrate, acetylacetone, and hydrazine hydrate. The final catalyst possesses high ORR and OER performances, with a half-wave potential of 0.911 V [vs reversible hydrogen electrode (RHE)] for ORR and a low potential of 1.57 V (vs RHE) at 10 mA cm^–2 for OER in 0.1 M KOH solution. Specially, a ZAB based on the catalyst demonstrates an ultrahigh power density of 479.1 mW cm^–2, as well as excellent stability, and potential in practical applications.

中文翻译：

基于均匀N，Co共掺杂碳纳米球的超高功率密度可充电锌空气电池

氧还原反应（ORR）和氧释放反应（OER）的高效催化剂是可再充电锌空气电池（ZAB）商业化的关键。在这项工作中，由硝酸钴，乙酰丙酮和水合肼制备了具有均匀纳米球形形态的催化剂。最终催化剂具有较高的ORR和OER性能，ORR的半波电势为0.911 V [vs可逆氢电极（RHE）] ，OER为10 mA cm ^–2时的半波电势为1.57 V（vs RHE）低。 0.1 M KOH溶液。特别地，基于该催化剂的ZAB表现出479.1 mW cm ^-2的超高功率密度，以及出色的稳定性和在实际应用中的潜力。

更新日期：2019-11-19

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南