Synthesis of a MOF derived porous graphene and pyrolytic carbon supported zinc stannate nanohybrid electrode with enhanced lithium-ion storage performances
{"title":"Synthesis of a MOF derived porous graphene and pyrolytic carbon supported zinc stannate nanohybrid electrode with enhanced lithium-ion storage performances","authors":"","doi":"10.1016/j.mtsust.2024.100967","DOIUrl":null,"url":null,"abstract":"<div><p>Compositing nano-sized zinc stannate (Zn<sub>2</sub>SnO<sub>4</sub>) with supportive carbon skeleton usually brings in improved lithium-ion storage performances. One of the most challenging tasks is to effectively stabilize Zn<sub>2</sub>SnO<sub>4</sub> nanocrystals via simplified preparation routes from eco-friendly raw materials. In this work, the water-soluble natural molecule gallic acid (GA) is directly employed to coordinate with Zn<sup>2+</sup>/Sn<sup>2+</sup> ions, and the corresponding metal-organic framework (MOF) precursor samples of pure Zn-GA MOF and bimetallic ZnSn-GA MOF can be synthesized. The Zn-GA MOF and ZnSn-GA MOF precursors are further converted to a three-dimensional (3D) porous graphene sample (ZMG) and a pyrolytic carbon domain supported Zn<sub>2</sub>SnO<sub>4</sub> nanocomposite (Zn<sub>2</sub>SnO<sub>4</sub>@C), respectively, by taking the advantages of the unique micro-structures and compositions of MOF materials. By rationally mixing the ZMG and Zn<sub>2</sub>SnO<sub>4</sub>@C in electrode fabrication, the finally obtained Zn<sub>2</sub>SnO<sub>4</sub>@C/ZMG nanohybrid electrode exhibits a high reversible capacity of 1117 mAh·g<sup>−1</sup> after 500 cycles at a current density of 1000 mA g<sup>−1</sup> in half-cells as well as inspiring full-cell performance. The favorable synergistic effect in lithium-ion storage for the Zn<sub>2</sub>SnO<sub>4</sub>@C/ZMG electrode has been investigated. The MOF derived samples and involved sustainable synthesis protocols can be further developed for wider applications.</p></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":null,"pages":null},"PeriodicalIF":7.1000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Today Sustainability","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2589234724003038","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Compositing nano-sized zinc stannate (Zn2SnO4) with supportive carbon skeleton usually brings in improved lithium-ion storage performances. One of the most challenging tasks is to effectively stabilize Zn2SnO4 nanocrystals via simplified preparation routes from eco-friendly raw materials. In this work, the water-soluble natural molecule gallic acid (GA) is directly employed to coordinate with Zn2+/Sn2+ ions, and the corresponding metal-organic framework (MOF) precursor samples of pure Zn-GA MOF and bimetallic ZnSn-GA MOF can be synthesized. The Zn-GA MOF and ZnSn-GA MOF precursors are further converted to a three-dimensional (3D) porous graphene sample (ZMG) and a pyrolytic carbon domain supported Zn2SnO4 nanocomposite (Zn2SnO4@C), respectively, by taking the advantages of the unique micro-structures and compositions of MOF materials. By rationally mixing the ZMG and Zn2SnO4@C in electrode fabrication, the finally obtained Zn2SnO4@C/ZMG nanohybrid electrode exhibits a high reversible capacity of 1117 mAh·g−1 after 500 cycles at a current density of 1000 mA g−1 in half-cells as well as inspiring full-cell performance. The favorable synergistic effect in lithium-ion storage for the Zn2SnO4@C/ZMG electrode has been investigated. The MOF derived samples and involved sustainable synthesis protocols can be further developed for wider applications.
期刊介绍:
Materials Today Sustainability is a multi-disciplinary journal covering all aspects of sustainability through materials science.
With a rapidly increasing population with growing demands, materials science has emerged as a critical discipline toward protecting of the environment and ensuring the long term survival of future generations.