This is a brief report on the Carbon2003 conference held in Oviedo of Spain in the second week of July 2003. More than 400 experts from 38 nations presented 516 contributions of the most recent results of their resear...This is a brief report on the Carbon2003 conference held in Oviedo of Spain in the second week of July 2003. More than 400 experts from 38 nations presented 516 contributions of the most recent results of their research on carbon. Similar to previous carbon meetings, a wide range of topica was covered, including Raw Materials and Thermal Treatments, Fibres and Composites, New Carbon Forms, Advanced Structural Characterization, Adsorption and Surface Science, Chemical Reactivity, Intercalation and Catalysis, Energy Storage, Environmental Applications, Other Products/Applications (Biomaterials, etc.). The Carbon2003 conference is especially characterized by introducing a novel debate forum on "Hot Topics" with the aim of provoking discussion and debate on unresolved questions and highly controversial issues, including magnetic carbon or ferromagnetism in pure carbon, potentiomatric titrations for the characterization of functional groups on carbons, hydrogen storage in SWCNTs, methane storage in microporous carbons and the nature of basic sites on carbon surfaces as well as a novel structure of nongraphitizing carbons, etc. It is believed that this kind of "Hot Topic" forum should be adopted in all future carbon conferences.展开更多
锂离子电池的性能高度依赖于负极材料的性能。由于商业石墨受限于较低的理论容量,开发新型炭材料和金属氧化物/硫化物引起越来越多的关注。黄铁矿(Fe S_2)具有较大理论储锂容量(894 mAh g^(-1)),而且环保价廉。为了提高黄铁矿的电导率,...锂离子电池的性能高度依赖于负极材料的性能。由于商业石墨受限于较低的理论容量,开发新型炭材料和金属氧化物/硫化物引起越来越多的关注。黄铁矿(Fe S_2)具有较大理论储锂容量(894 mAh g^(-1)),而且环保价廉。为了提高黄铁矿的电导率,改善其充/放电过程中的体积变化,合成了纳米碳管限域黄铁矿复合材料(Fe S_2/N-CNTs)。该材料基于填充有铁纳米线/棒的氮掺杂碳纳米管(Fe/N-CNTs)的独特结构,利用氮掺杂纳米碳管管壁上的缺陷,通过简易的硫化过程,实现了碳管内铁的原位限域硫化转化。所得Fe S_2/N-CNTs复合物中黄铁矿以两种形态存在,一种是由半开放的氮掺杂碳纳米管包裹的Fe S_2纳米线,另一种是Fe S_2纳米颗粒从管腔扩散并附着在碳管外壁上。Fe S_2/N-CNTs复合物作为锂离子电池的负极材料,表现出高放电容量(996 mAh g^(-1)/0. 1 A g^(-1))和良好的倍率性能,且循环性能优良。展开更多
文摘This is a brief report on the Carbon2003 conference held in Oviedo of Spain in the second week of July 2003. More than 400 experts from 38 nations presented 516 contributions of the most recent results of their research on carbon. Similar to previous carbon meetings, a wide range of topica was covered, including Raw Materials and Thermal Treatments, Fibres and Composites, New Carbon Forms, Advanced Structural Characterization, Adsorption and Surface Science, Chemical Reactivity, Intercalation and Catalysis, Energy Storage, Environmental Applications, Other Products/Applications (Biomaterials, etc.). The Carbon2003 conference is especially characterized by introducing a novel debate forum on "Hot Topics" with the aim of provoking discussion and debate on unresolved questions and highly controversial issues, including magnetic carbon or ferromagnetism in pure carbon, potentiomatric titrations for the characterization of functional groups on carbons, hydrogen storage in SWCNTs, methane storage in microporous carbons and the nature of basic sites on carbon surfaces as well as a novel structure of nongraphitizing carbons, etc. It is believed that this kind of "Hot Topic" forum should be adopted in all future carbon conferences.
基金National Natural Science Foundation of China (51072028,20876026,20836002 )China Postdoctoral Science Foundation (2013M530922,2014T70253)Program for Liaoning Excellent Talents in University (LJQ2014118)~~
文摘锂离子电池的性能高度依赖于负极材料的性能。由于商业石墨受限于较低的理论容量,开发新型炭材料和金属氧化物/硫化物引起越来越多的关注。黄铁矿(Fe S_2)具有较大理论储锂容量(894 mAh g^(-1)),而且环保价廉。为了提高黄铁矿的电导率,改善其充/放电过程中的体积变化,合成了纳米碳管限域黄铁矿复合材料(Fe S_2/N-CNTs)。该材料基于填充有铁纳米线/棒的氮掺杂碳纳米管(Fe/N-CNTs)的独特结构,利用氮掺杂纳米碳管管壁上的缺陷,通过简易的硫化过程,实现了碳管内铁的原位限域硫化转化。所得Fe S_2/N-CNTs复合物中黄铁矿以两种形态存在,一种是由半开放的氮掺杂碳纳米管包裹的Fe S_2纳米线,另一种是Fe S_2纳米颗粒从管腔扩散并附着在碳管外壁上。Fe S_2/N-CNTs复合物作为锂离子电池的负极材料,表现出高放电容量(996 mAh g^(-1)/0. 1 A g^(-1))和良好的倍率性能,且循环性能优良。
