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Substitutional Carbon-Modified Anatase TiO2 Decahedral Plates Directly Derived from Titanium Oxalate Crystals via Topotactic Transition
Niu, P; Wu, TT; Wen, L; Tan, J; Yang, YQ; Zheng, SJ; Liang, Y; Li, F; Irvine, JTS; Liu, G; Ma, XL; Cheng, HM; Cheng, HM (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Liu, G (reprint author), Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Cheng, HM (reprint author), Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Low Dimens Mat & Device Lab, 1001 Xueyuan Rd, Shenzhen 518055, Peoples R China.; Cheng, HM (reprint author), King Abdulaziz Univ, Ctr Excellence Environm Studies, Jeddah 21589, Saudi Arabia.
2018-05-17
发表期刊ADVANCED MATERIALS
ISSN0935-9648
卷号30期号:20页码:-
摘要Changing the composition and/or structure of some metal oxides at the atomic level can significantly improve their performance in different applications. Although many strategies have been developed, the introduction of heteroatoms, particularly anions to the internal part of metal oxide particles, is still not adequate. Here, an effective strategy is demonstrated for directly preparing polycrystalline decahedral plates of substitutional carbon-doped anatase TiO2 from titanium (IV) oxalate by a thermally induced topotactic transition in an inert atmosphere. Because of the carbon concentration gradient introduced in side of the plates, the carbon-doped TiO2 (TiO2-xCx) shows an increased visible light absorption and a two orders of magnitude higher electrical conductivity than pure TiO2. Consequently, it can be used as a photocatalyst and an active material for lithium storage and shows much superior activity in generating hydroxyl radicals under visible light and greatly increased electrical-specific capacity at high charge-discharge rates. The strategy developed could also be applicable to the atomic-scale modification of other metal oxides.; Changing the composition and/or structure of some metal oxides at the atomic level can significantly improve their performance in different applications. Although many strategies have been developed, the introduction of heteroatoms, particularly anions to the internal part of metal oxide particles, is still not adequate. Here, an effective strategy is demonstrated for directly preparing polycrystalline decahedral plates of substitutional carbon-doped anatase TiO2 from titanium (IV) oxalate by a thermally induced topotactic transition in an inert atmosphere. Because of the carbon concentration gradient introduced in side of the plates, the carbon-doped TiO2 (TiO2-xCx) shows an increased visible light absorption and a two orders of magnitude higher electrical conductivity than pure TiO2. Consequently, it can be used as a photocatalyst and an active material for lithium storage and shows much superior activity in generating hydroxyl radicals under visible light and greatly increased electrical-specific capacity at high charge-discharge rates. The strategy developed could also be applicable to the atomic-scale modification of other metal oxides.
部门归属[niu, ping ; wu, tingting ; wen, lei ; tan, jun ; yang, yongqiang ; zheng, shijian ; liang, yan ; li, feng ; liu, gang ; ma, xiuliang ; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [irvine, john t. s.] univ st andrews, sch chem, st andrews ky16 9st, fife, scotland ; [liu, gang] univ sci & technol china, sch mat sci & engn, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [cheng, hui-ming] tsinghua univ, tsinghua berkeley shenzhen inst, low dimens mat & device lab, 1001 xueyuan rd, shenzhen 518055, peoples r china ; [cheng, hui-ming] king abdulaziz univ, ctr excellence environm studies, jeddah 21589, saudi arabia
关键词Lithium-ion Batteries Visible-light Hydrogen Generation Storage Graphene Nitrogen Facets Growth Photocatalysis Semiconductor
学科领域Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
资助者Ministry of Science and Technology of China [2014CB239401]; National Science Fund of China [51422210, 21633009, 51561130157, 51521091]; Key Research Program of Frontier Sciences CAS [QYZDB-SSW-JSC039]; Newton Advanced Fellowship
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79303
专题中国科学院金属研究所
通讯作者Liu, G; Cheng, HM (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Liu, G (reprint author), Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Cheng, HM (reprint author), Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Low Dimens Mat & Device Lab, 1001 Xueyuan Rd, Shenzhen 518055, Peoples R China.; Cheng, HM (reprint author), King Abdulaziz Univ, Ctr Excellence Environm Studies, Jeddah 21589, Saudi Arabia.
推荐引用方式
GB/T 7714
Niu, P,Wu, TT,Wen, L,et al. Substitutional Carbon-Modified Anatase TiO2 Decahedral Plates Directly Derived from Titanium Oxalate Crystals via Topotactic Transition[J]. ADVANCED MATERIALS,2018,30(20):-.
APA Niu, P.,Wu, TT.,Wen, L.,Tan, J.,Yang, YQ.,...&Cheng, HM .(2018).Substitutional Carbon-Modified Anatase TiO2 Decahedral Plates Directly Derived from Titanium Oxalate Crystals via Topotactic Transition.ADVANCED MATERIALS,30(20),-.
MLA Niu, P,et al."Substitutional Carbon-Modified Anatase TiO2 Decahedral Plates Directly Derived from Titanium Oxalate Crystals via Topotactic Transition".ADVANCED MATERIALS 30.20(2018):-.
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