{"title":"具有丰富通孔通道的 P 改性碳纳米片可在低温条件下促进硒离子储存","authors":"Ziling Wu , Yongzheng Zhang , Huimei Yu , Yanli Wang , Liang Zhan","doi":"10.1016/j.matlet.2024.136877","DOIUrl":null,"url":null,"abstract":"<div><p>Zinc-ion hybrid capacitors (ZIHCs) as a promising energy storage system suffer from unsatisfactory capability due to mismatched pore structure and lack of active sites in the carbon cathodes. Herein, a coupling strategy of oxidation template and in-situ doping is proposed to design a P-modified carbon nanosheet with abundant through-hole channels. Phosphorus doping not only reduces the electrode/electrolyte interface impedance, but also increases the available active sites. Through-hole channels enhance the Zn<sup>2+</sup> accessibility. Therefore, the assembled ZIHCs provide an ultra-high energy density of 194.23 Wh kg<sup>−1</sup>. Even at 0 °C, the ZIHCs retain a superior capacity of 166.0 mAh/g and stabilize for 10,000 cycles with capacity retention of 95.33 %. This work provides new insights into the design of carbon cathodes for boosting the Zn<sup>2+</sup> storage.</p></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"P-modified carbon nanosheet with abundant through-hole channels for boosting Zn-ion storage under low-temperature\",\"authors\":\"Ziling Wu , Yongzheng Zhang , Huimei Yu , Yanli Wang , Liang Zhan\",\"doi\":\"10.1016/j.matlet.2024.136877\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Zinc-ion hybrid capacitors (ZIHCs) as a promising energy storage system suffer from unsatisfactory capability due to mismatched pore structure and lack of active sites in the carbon cathodes. Herein, a coupling strategy of oxidation template and in-situ doping is proposed to design a P-modified carbon nanosheet with abundant through-hole channels. Phosphorus doping not only reduces the electrode/electrolyte interface impedance, but also increases the available active sites. Through-hole channels enhance the Zn<sup>2+</sup> accessibility. Therefore, the assembled ZIHCs provide an ultra-high energy density of 194.23 Wh kg<sup>−1</sup>. Even at 0 °C, the ZIHCs retain a superior capacity of 166.0 mAh/g and stabilize for 10,000 cycles with capacity retention of 95.33 %. This work provides new insights into the design of carbon cathodes for boosting the Zn<sup>2+</sup> storage.</p></div>\",\"PeriodicalId\":384,\"journal\":{\"name\":\"Materials Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-06-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167577X24010164\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X24010164","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
P-modified carbon nanosheet with abundant through-hole channels for boosting Zn-ion storage under low-temperature
Zinc-ion hybrid capacitors (ZIHCs) as a promising energy storage system suffer from unsatisfactory capability due to mismatched pore structure and lack of active sites in the carbon cathodes. Herein, a coupling strategy of oxidation template and in-situ doping is proposed to design a P-modified carbon nanosheet with abundant through-hole channels. Phosphorus doping not only reduces the electrode/electrolyte interface impedance, but also increases the available active sites. Through-hole channels enhance the Zn2+ accessibility. Therefore, the assembled ZIHCs provide an ultra-high energy density of 194.23 Wh kg−1. Even at 0 °C, the ZIHCs retain a superior capacity of 166.0 mAh/g and stabilize for 10,000 cycles with capacity retention of 95.33 %. This work provides new insights into the design of carbon cathodes for boosting the Zn2+ storage.
期刊介绍:
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive