{"title":"将PET废弃物升级为CoNi-MOF@MoSe2用于高性能水性超级电容器的混合纳米结构。","authors":"Samikannu Prabu, Madhan Vinu, Kung-Yuh Chiang","doi":"10.1002/cssc.202501003","DOIUrl":null,"url":null,"abstract":"<p><p>This study presents a novel technique for sustainably upcycling polyethylene terephthalate (PET) plastic waste (PW) into functional metal-organic frameworks (MOFs) for enhanced energy storage applications. To synthesize CoNi-MOF nanocrystals, terephthalic acid (TPA), which is obtained by alkaline hydrolysis of PET, acts as an environmentally benign organic linker. Further integrating the MOFs with ultrathin MoSe<sub>2</sub> nanosheets using a simple hydrothermal technique develops a hybrid CoNi-MOF MoSe<sub>2</sub> electrode material. The synthesized nanocomposite demonstrates excellent cycling durability, maintaining 98.46% of its capacitance after 15,000 galvanostatic charge-discharge cycles, along with a high specific capacitance of 3322 F g<sup>-1</sup> at a low current of 0.5 A g<sup>-1</sup>. Furthermore, an asymmetric supercapacitor (ASC) device is constructed with activated carbon (AC) as the anode and CoNi-MOF MoSe<sub>2</sub> as the cathode in an aqueous KOH electrolyte. This ASC has exceptional electrochemical performance, maintaining 95% of its original capacity after extended cycling and producing a high energy density of 59 Wh kg<sup>-</sup> <sup>1</sup> at a power density of 450 W kg<sup>-</sup> <sup>1</sup>. This work highlights the possibility of PW-derived hybrid MOF materials with programmable nanostructures as viable choices for upcoming improved energy storage technologies.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e2501003"},"PeriodicalIF":6.6000,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Upcycling Polyethylene Terephthalate-Derived CoNi-Metal-Organic Framework MoSe<sub>2</sub> Hybrids for High-Performance Aqueous Supercapacitors.\",\"authors\":\"Samikannu Prabu, Madhan Vinu, Kung-Yuh Chiang\",\"doi\":\"10.1002/cssc.202501003\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>This study presents a novel technique for sustainably upcycling polyethylene terephthalate (PET) plastic waste (PW) into functional metal-organic frameworks (MOFs) for enhanced energy storage applications. To synthesize CoNi-MOF nanocrystals, terephthalic acid (TPA), which is obtained by alkaline hydrolysis of PET, acts as an environmentally benign organic linker. Further integrating the MOFs with ultrathin MoSe<sub>2</sub> nanosheets using a simple hydrothermal technique develops a hybrid CoNi-MOF MoSe<sub>2</sub> electrode material. The synthesized nanocomposite demonstrates excellent cycling durability, maintaining 98.46% of its capacitance after 15,000 galvanostatic charge-discharge cycles, along with a high specific capacitance of 3322 F g<sup>-1</sup> at a low current of 0.5 A g<sup>-1</sup>. Furthermore, an asymmetric supercapacitor (ASC) device is constructed with activated carbon (AC) as the anode and CoNi-MOF MoSe<sub>2</sub> as the cathode in an aqueous KOH electrolyte. This ASC has exceptional electrochemical performance, maintaining 95% of its original capacity after extended cycling and producing a high energy density of 59 Wh kg<sup>-</sup> <sup>1</sup> at a power density of 450 W kg<sup>-</sup> <sup>1</sup>. This work highlights the possibility of PW-derived hybrid MOF materials with programmable nanostructures as viable choices for upcoming improved energy storage technologies.</p>\",\"PeriodicalId\":149,\"journal\":{\"name\":\"ChemSusChem\",\"volume\":\" \",\"pages\":\"e2501003\"},\"PeriodicalIF\":6.6000,\"publicationDate\":\"2025-07-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ChemSusChem\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1002/cssc.202501003\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ChemSusChem","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1002/cssc.202501003","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
本研究提出了一种可持续升级回收聚对苯二甲酸乙二醇酯(PET)塑料废物(PW)为功能性金属有机框架(MOFs)的新技术,以增强储能应用。为了合成CoNi-MOF纳米晶体,将PET碱性水解得到的对苯二甲酸(TPA)作为一种环保的有机连接剂。利用简单的水热技术将MOFs与超薄MoSe2纳米片进一步集成,开发了一种混合CoNi-MOF@MoSe2电极材料。合成的纳米复合材料具有优异的循环耐久性,在15,000 GCD循环后保持98.46%的电容,并且在0.5 a /g的低电流下具有3,322 F/g的高比电容。在KOH水溶液中,以活性炭(AC)为阳极,CoNi-MOF@MoSe2为阴极,构建了不对称超级电容器(ASC)装置。这种ASC具有优异的电化学性能,在长时间循环后保持95%的原始容量,在450 W kg-1的功率密度下产生59 Wh kg-1的高能量密度。这项工作强调了pw衍生的具有可编程纳米结构的混合MOF材料作为即将到来的改进储能技术的可行选择的可能性。
This study presents a novel technique for sustainably upcycling polyethylene terephthalate (PET) plastic waste (PW) into functional metal-organic frameworks (MOFs) for enhanced energy storage applications. To synthesize CoNi-MOF nanocrystals, terephthalic acid (TPA), which is obtained by alkaline hydrolysis of PET, acts as an environmentally benign organic linker. Further integrating the MOFs with ultrathin MoSe2 nanosheets using a simple hydrothermal technique develops a hybrid CoNi-MOF MoSe2 electrode material. The synthesized nanocomposite demonstrates excellent cycling durability, maintaining 98.46% of its capacitance after 15,000 galvanostatic charge-discharge cycles, along with a high specific capacitance of 3322 F g-1 at a low current of 0.5 A g-1. Furthermore, an asymmetric supercapacitor (ASC) device is constructed with activated carbon (AC) as the anode and CoNi-MOF MoSe2 as the cathode in an aqueous KOH electrolyte. This ASC has exceptional electrochemical performance, maintaining 95% of its original capacity after extended cycling and producing a high energy density of 59 Wh kg-1 at a power density of 450 W kg-1. This work highlights the possibility of PW-derived hybrid MOF materials with programmable nanostructures as viable choices for upcoming improved energy storage technologies.
期刊介绍:
ChemSusChem
Impact Factor (2016): 7.226
Scope:
Interdisciplinary journal
Focuses on research at the interface of chemistry and sustainability
Features the best research on sustainability and energy
Areas Covered:
Chemistry
Materials Science
Chemical Engineering
Biotechnology