典型文献
Reversible lithium storage in sp2 hydrocarbon frameworks
文献摘要：
Polymer materials offer controllable structure-dependent performances in separation,catalysis and drug release.Their molecular structures can be precisely tailored to accept Li+for energy storage applications.Here the design of sp2 carbon-based polyphenylene(PPH)with high lithium-ion uptakes and long-term stability is reported.Linear-PPH(L-PPH)exceeds the performance of crosslink-PPH(C-PPH),due to the fact that it has an ordered lamellar structure,promoting the Li+intercalation/deintercalation channel.The L-PPH cell shows a clear charge and discharge plateau at 0.35 and 0.15 V vs.Li+/Li,respectively,which is absent in the C-PPH cell.The Li+storage capacity of L-PPH is five times that of the C-PPH.The reversible storage capacity is further improved to 261 mAh g-1 by functionalizing the L-PPH with the-S03H groups.In addition,the Li-intercalated structures of C-PPH and L-PPH are investigated via near-edge X-ray absorption fine structure(NEXAFS),suggesting the high reversible Li+-C=C bond interaction at L-PPH.This strategy,based on new insight into sp2 functional groups,is the first step toward a molecular under-standing of the structure storage-capacity relationship in sp2 carbon-based polymer.
文献关键词：
中图分类号：
作者姓名：
Zhangxiang Hao;Junrun Feng;Yiyun Liu;Liqun Kang;Bolun Wang;Junwen Gu;Lin Sheng;Ruoyu Xu;Sushila Marlow;Dan J.L.Brett;Yunhui Huang;Feng Ryan Wang
作者机构：
Materials and Catalysis Laboratory,Department of Chemical Engineering,University College London,London WC1E 7JE,United Kingdom;Department of Chemistry,University College London,London WC1H 0AJ,United Kingdom;Electrochemical Innovation Lab,Department of Chemical Engineering,University College London,London WCE 7JE,United Kingdom;School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,Hubei,China
文献出处：
引用格式：
[1]Zhangxiang Hao;Junrun Feng;Yiyun Liu;Liqun Kang;Bolun Wang;Junwen Gu;Lin Sheng;Ruoyu Xu;Sushila Marlow;Dan J.L.Brett;Yunhui Huang;Feng Ryan Wang-.Reversible lithium storage in sp2 hydrocarbon frameworks)[J].能源化学,2022(03):161-167
A类：
Li+for,polyphenylene,Li+intercalation,Li+storage,S03H,NEXAFS
B类：
Reversible,lithium,sp2,hydrocarbon,frameworks,Polymer,materials,offer,controllable,dependent,performances,separation,catalysis,drug,release,Their,molecular,structures,can,be,precisely,tailored,accept,energy,applications,Here,design,PPH,high,uptakes,long,term,stability,reported,Linear,exceeds,crosslink,due,fact,that,has,ordered,lamellar,promoting,deintercalation,channel,cell,shows,clear,discharge,plateau,respectively,which,absent,capacity,five,times,reversible,further,improved,mAh,by,functionalizing,groups,In,addition,intercalated,are,investigated,via,edge,ray,absorption,fine,suggesting,bond,interaction,This,strategy,new,insight,into,first,step,toward,under,standing,relationship,polymer
AB值：
0.527451
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