基于光热效应的具有自调节充放电性能的太阳能光响应锌空气电池,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.)

基于光热效应的具有自调节充放电性能的太阳能光响应锌空气电池
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-01-09 , DOI: 10.1021/acsami.2c19663
Shushan Zheng _{1,

2} , Mengyu Chen ₁ , Kui Chen ₃ , Yongjian Wu ₁ , Jing Yu ₄ , Tongtong Jiang ₁ , Mingzai Wu _{1,

2}

Affiliation

由于热力学平衡势的限制，仅通过纳米/原子工程调整正极的催化性能来显着提高锌空气电池的伏打效率、功率密度和循环稳定性极具挑战性。在此，受太阳能电池的启发，将 S 原子桥接的 FeNi 颗粒和 N 掺杂的空心碳纳米球复合结构（FeNi-S，N-HCS）作为多功能空气电极材料（本征电催化功能和额外的光热功能）用于设计基于光热效应的光响应全固态锌空气电池（PR-ZAB）。FeNi-S,N-HCS电极的局部温度由于其优越的光热效应可以很好地响应太阳光照射的刺激。^–2至 126 毫瓦厘米^–2。同时，由于加速的电催化动力学、增加的电导率和加速的 O ₂气泡从电极的解吸速率，充电电压可以显着降低，并且在光照下循环寿命也延长。通过发挥电极材料固有的电催化和光热效率，该研究为从动力学和热力学角度提高电池性能开辟了新途径。

"点击查看英文标题和摘要"

Solar-Light-Responsive Zinc–Air Battery with Self-Regulated Charge–Discharge Performance based on Photothermal Effect

It is extremely challenging to significantly increase the voltaic efficiency, power density, and cycle stability of a Zn–air battery by just adjusting the catalytic performance of the cathode with nanometers/atomistic engineering because of the restriction of thermodynamic equilibrium potential. Herein, inspired by solar batteries, the S-atom-bridged FeNi particles and N-doped hollow carbon nanosphere composite configuration (FeNi-S,N-HCS) is presented as a prototype of muti-functional air electrode material (intrinsic electrocatalytic function and additional photothermal function) for designing photoresponsive all-solid-state Zn–air batteries (PR-ZABs) based on the photothermal effect. The local temperature of the FeNi-S,N-HCS electrode can well respond to the stimuli of sunlight irradiation because of their superior photothermal effect. As expected, under illumination, the power density of the as-fabricated PR-ZABs based on the FeNi-S,N-HCS electrode can be improved from 77 mW cm^–2 to 126 mW cm^–2. Simultaneously, charge voltage can be dramatically reduced, and cycle lifetime is also prolonged under illumination, because of the expedited electrocatalytic kinetics, the increased electrical conductivity, and the accelerated desorption rate of O₂ bubbles from the electrode. By exerting the intrinsic electrocatalytic and photothermal efficiency of the electrode materials, this research paves new ways to improve battery performance from kinetic and thermodynamic perspectives.

更新日期：2023-01-09

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