{"title":"Photothermal-boosted flexible rechargeable zinc-air battery based on Ni-doped Mn3O4 with excellent low-temperature adaptability","authors":"Wengai Guo, Fan Gu, Qilin Chen, Kexuan Fu, Yuqing Zhong, Jing-Jing Lv, Shuang Pan, Yihuang Chen","doi":"10.1002/cey2.567","DOIUrl":null,"url":null,"abstract":"As a promising flexible energy source for next-generation emerging electronic devices, the temperature adaptability and low-temperature performance retention of flexible zinc-air batteries (ZABs) remain a great challenge for their practical application. Herein, we report photothermal-promoted aqueous and flexible ZABs with enhanced performance under a wide temperature range via using Ni-doped Mn<sub>3</sub>O<sub>4</sub>/N-doped reduced graphene oxide (denoted as Ni-Mn<sub>3</sub>O<sub>4</sub>/N-rGO) nanohybrids as bifunctional electrocatalysts. Upon being exposed to near-infrared light, the Ni-Mn<sub>3</sub>O<sub>4</sub>/N-rGO exhibited a powerful photothermal effect, resulting in localized and immediate heating of the electrode. Such effects led to increased active sites, improved electrical conductivity, enhanced release of bubbles, and promoted surface reconstruction of the electrode catalyst as corroborated by simulation and <i>operando</i> Raman. Consequently, the catalytic performance was boosted, manifesting a superior activity indicator Δ<i>E</i> of 0.685 V with excellent durability. As expected, the corresponding photothermal-assisted rechargeable ZABs possessed an excellent maximum power density (e.g., 78.76 mW cm<sup>−2</sup> at −10°C), superb cycling stability (e.g., over 430 cycles at −10°C), and excellent flexibility from 25°C to subzero temperature. Our work opens up new possibilities for the development of all-climate flexible electronic devices.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":null,"pages":null},"PeriodicalIF":19.5000,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carbon Energy","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/cey2.567","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
As a promising flexible energy source for next-generation emerging electronic devices, the temperature adaptability and low-temperature performance retention of flexible zinc-air batteries (ZABs) remain a great challenge for their practical application. Herein, we report photothermal-promoted aqueous and flexible ZABs with enhanced performance under a wide temperature range via using Ni-doped Mn3O4/N-doped reduced graphene oxide (denoted as Ni-Mn3O4/N-rGO) nanohybrids as bifunctional electrocatalysts. Upon being exposed to near-infrared light, the Ni-Mn3O4/N-rGO exhibited a powerful photothermal effect, resulting in localized and immediate heating of the electrode. Such effects led to increased active sites, improved electrical conductivity, enhanced release of bubbles, and promoted surface reconstruction of the electrode catalyst as corroborated by simulation and operando Raman. Consequently, the catalytic performance was boosted, manifesting a superior activity indicator ΔE of 0.685 V with excellent durability. As expected, the corresponding photothermal-assisted rechargeable ZABs possessed an excellent maximum power density (e.g., 78.76 mW cm−2 at −10°C), superb cycling stability (e.g., over 430 cycles at −10°C), and excellent flexibility from 25°C to subzero temperature. Our work opens up new possibilities for the development of all-climate flexible electronic devices.
期刊介绍:
Carbon Energy is an international journal that focuses on cutting-edge energy technology involving carbon utilization and carbon emission control. It provides a platform for researchers to communicate their findings and critical opinions and aims to bring together the communities of advanced material and energy. The journal covers a broad range of energy technologies, including energy storage, photocatalysis, electrocatalysis, photoelectrocatalysis, and thermocatalysis. It covers all forms of energy, from conventional electric and thermal energy to those that catalyze chemical and biological transformations. Additionally, Carbon Energy promotes new technologies for controlling carbon emissions and the green production of carbon materials. The journal welcomes innovative interdisciplinary research with wide impact. It is indexed in various databases, including Advanced Technologies & Aerospace Collection/Database, Biological Science Collection/Database, CAS, DOAJ, Environmental Science Collection/Database, Web of Science and Technology Collection.