351
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Zhang Y, Shang M, Mi Y, Xia T, Wallenmeyer P, Murowchick J, Dong L, Zhang Q, Chen X. Influence of the Amount of Hydrogen Fluoride on the Formation of (001)-Faceted Titanium Dioxide Nanosheets and Their Photocatalytic Hydrogen Generation Performance. Chempluschem 2014. [DOI: 10.1002/cplu.201402036] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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352
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353
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Han XB, Zhang ZM, Zhang T, Li YG, Lin W, You W, Su ZM, Wang EB. Polyoxometalate-Based Cobalt–Phosphate Molecular Catalysts for Visible Light-Driven Water Oxidation. J Am Chem Soc 2014; 136:5359-66. [DOI: 10.1021/ja412886e] [Citation(s) in RCA: 379] [Impact Index Per Article: 37.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xin-Bao Han
- Key
Laboratory of Polyoxometalate Science of the Ministry of Education,
Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P.R. China
| | - Zhi-Ming Zhang
- Key
Laboratory of Polyoxometalate Science of the Ministry of Education,
Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P.R. China
- Department
of Chemistry, University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
- Collaborative
Innovation Center of Chemistry for Energy Materials, College of Chemistry
and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Teng Zhang
- Department
of Chemistry, University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Yang-Guang Li
- Key
Laboratory of Polyoxometalate Science of the Ministry of Education,
Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P.R. China
| | - Wenbin Lin
- Department
of Chemistry, University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
- Collaborative
Innovation Center of Chemistry for Energy Materials, College of Chemistry
and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Wansheng You
- Institute
of Chemistry for Functionalized Materials, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China
| | - Zhong-Min Su
- Key
Laboratory of Polyoxometalate Science of the Ministry of Education,
Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P.R. China
| | - En-Bo Wang
- Key
Laboratory of Polyoxometalate Science of the Ministry of Education,
Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P.R. China
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354
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Hou W, Lancaster L, Li D, Bowlus A, Bozhilov K, Kisailus D. Biologically inspired synthesis of highly branched zinc oxide nanowires. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2014. [DOI: 10.1680/bbn.13.00019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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355
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Algar WR, Kim H, Medintz IL, Hildebrandt N. Emerging non-traditional Förster resonance energy transfer configurations with semiconductor quantum dots: Investigations and applications. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2013.07.015] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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356
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357
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Highly dispersed copper nanoparticle modified nano Li4Ti5O12 with high rate performance for lithium ion battery. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.12.049] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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358
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Li L, Salvador PA, Rohrer GS. Photocatalysts with internal electric fields. NANOSCALE 2014; 6:24-42. [PMID: 24084897 DOI: 10.1039/c3nr03998f] [Citation(s) in RCA: 272] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The photocatalytic activity of materials for water splitting is limited by the recombination of photogenerated electron-hole pairs as well as the back-reaction of intermediate species. This review concentrates on the use of electric fields within catalyst particles to mitigate the effects of recombination and back-reaction and to increase photochemical reactivity. Internal electric fields in photocatalysts can arise from ferroelectric phenomena, p-n junctions, polar surface terminations, and polymorph junctions. The manipulation of internal fields through the creation of charged interfaces in hierarchically structured materials is a promising strategy for the design of improved photocatalysts.
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Affiliation(s)
- Li Li
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.
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359
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Li N, Zhang L, Zhou J, Jing D, Sun Y. Localized nano-solid-solution induced by Cu doping in ZnS for efficient solar hydrogen generation. Dalton Trans 2014; 43:11533-41. [DOI: 10.1039/c4dt00969j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible-light-driven H2evolution rate reached 1.03 mmol h−1with a quantum yield of 26.2% over the localized Cu1−xZnxS nano-solid-solutions.
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Affiliation(s)
- Naixu Li
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing, P.R. China
| | - Longzhou Zhang
- International Research Center for Renewable Energy
- State Key Laboratory of Multiphase Flow
- Xi'an Jiaotong University
- Xi'an, P. R. China
| | - Jiancheng Zhou
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing, P.R. China
| | - Dengwei Jing
- International Research Center for Renewable Energy
- State Key Laboratory of Multiphase Flow
- Xi'an Jiaotong University
- Xi'an, P. R. China
| | - Yueming Sun
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing, P.R. China
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360
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Li Z, Zhu Q, Huang S, Jiang S, Lu S, Chen W, Zakharova GS. Interpenetrating network V2O5 nanosheets/carbon nanotubes nanocomposite for fast lithium storage. RSC Adv 2014. [DOI: 10.1039/c4ra07937j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An interpenetrating V2O5 nanosheets/CNTs nanocomposite was fabricated by a freeze-drying method. The nanocomposite has excellent electrochemical properties for fast lithium storage.
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Affiliation(s)
- Zhaolong Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070, P. R. China
| | - Quanyao Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070, P. R. China
| | - Shengnan Huang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070, P. R. China
| | - Shanshan Jiang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070, P. R. China
| | - Shan Lu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070, P. R. China
| | - Wen Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070, P. R. China
| | - Galina S. Zakharova
- Institute of Solid State Chemistry
- Ural Branch of the Russian Academy of Science
- Ekaterinburg 620990, Russian Federation
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361
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Yu L, Zhang X, Zhuang C, Lin L, Li R, Peng T. Syntheses of asymmetric zinc phthalocyanines as sensitizer of Pt-loaded graphitic carbon nitride for efficient visible/near-IR-light-driven H2 production. Phys Chem Chem Phys 2014; 16:4106-14. [DOI: 10.1039/c3cp54316a] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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362
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Su X, Wu Q, Li J, Xiao X, Lott A, Lu W, Sheldon BW, Wu J. Silicon-Based Nanomaterials for Lithium-Ion Batteries: A Review. ADVANCED ENERGY MATERIALS 2014. [PMID: 0 DOI: 10.1002/aenm.201300882] [Citation(s) in RCA: 512] [Impact Index Per Article: 51.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Affiliation(s)
- Xin Su
- School of Engineering; Brown University; Providence RI 02912 USA
| | - Qingliu Wu
- Electrochemical Energy Storage; Chemical Sciences and Engineering Division; 9700 South Cass Avenue, Building 205 Argonne IL 60439-4837 USA
| | - Juchuan Li
- Materials Science & Technology Division; Oak Ridge National Laboratory; Oak Ridge TN 37831 USA
| | - Xingcheng Xiao
- Chemical Sciences and Materials Systems Laboratory; General Motors Research and Development Center; Warren MI 48090 USA
| | - Amber Lott
- Department of Chemistry; Georgia Southern University; Statesboro GA30460 USA
| | - Wenquan Lu
- Electrochemical Energy Storage; Chemical Sciences and Engineering Division; 9700 South Cass Avenue, Building 205 Argonne IL 60439-4837 USA
| | - Brian W. Sheldon
- School of Engineering; Brown University; Providence RI 02912 USA
| | - Ji Wu
- Department of Chemistry; Georgia Southern University; Statesboro GA30460 USA
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363
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Cheng C, Liu H, Xue X, Cao S, Cao H, Shi L. Synthesizing nano-sized (∼20 nm) Li4Ti5O12 at low temperature for a high-rate performance lithium ion battery anode. RSC Adv 2014. [DOI: 10.1039/c4ra10703a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This is the first report on the preparation of highly crystalline Li4Ti5O12 with a small particle size of ∼20 nm using a low synthesis temperature (500 °C).
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Affiliation(s)
- Chongling Cheng
- Nano-Science & Technology Research Center
- Shanghai University
- Shanghai, P. R. China
- Professional and Technical Service Platform for Designing and Manufacturing of Advanced Composite Materials
- Shanghai, P. R. China
| | - Hongjiang Liu
- College of Science
- Shanghai University
- Shanghai, P. R. China
- Professional and Technical Service Platform for Designing and Manufacturing of Advanced Composite Materials
- Shanghai, P. R. China
| | - Xin Xue
- College of Science
- Shanghai University
- Shanghai, P. R. China
- Professional and Technical Service Platform for Designing and Manufacturing of Advanced Composite Materials
- Shanghai, P. R. China
| | - Shaomei Cao
- Nano-Science & Technology Research Center
- Shanghai University
- Shanghai, P. R. China
- Professional and Technical Service Platform for Designing and Manufacturing of Advanced Composite Materials
- Shanghai, P. R. China
| | - Hui Cao
- Shanghai Aerospace Power Technology Co. Ltd
- Shanghai, P. R. China
| | - Liyi Shi
- Nano-Science & Technology Research Center
- Shanghai University
- Shanghai, P. R. China
- College of Science
- Shanghai University
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364
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Tartaj P, Amarilla JM. Porous inorganic nanostructures with colloidal dimensions: synthesis and applications in electrochemical energy devices. Chem Commun (Camb) 2014; 50:2077-88. [DOI: 10.1039/c3cc49090d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Porous colloidal nanostructures are ideal materials for batteries, supercapacitors, solar and fuel cells (electrochemical devices that operate on renewable energy).
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Affiliation(s)
- Pedro Tartaj
- Instituto de Ciencia de Materiales de Madrid (CSIC)
- Campus Universitario de Cantoblanco
- Madrid, Spain
| | - Jose M. Amarilla
- Instituto de Ciencia de Materiales de Madrid (CSIC)
- Campus Universitario de Cantoblanco
- Madrid, Spain
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365
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Balasanthiran C, Hoefelmeyer JD. Facile method to attach transition metal ions to the surface of anatase TiO2 nanorods. Chem Commun (Camb) 2014; 50:5721-4. [DOI: 10.1039/c3cc48945k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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366
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Zhang J, Zhu W, Liu X. Stable hydrogen generation from vermiculite sensitized by CdS quantum dot photocatalytic splitting of water under visible-light irradiation. Dalton Trans 2014; 43:9296-302. [DOI: 10.1039/c4dt00897a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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367
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Xia T, Zhang C, Oyler NA, Chen X. Hydrogenated TiO(2) nanocrystals: a novel microwave absorbing material. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:6905-10. [PMID: 24105781 DOI: 10.1002/adma.201303088] [Citation(s) in RCA: 169] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Indexed: 05/19/2023]
Abstract
Here, we report, for the first time, hydrogenated TiO2 nanocrystals as a novel and exciting microwave absorbing material, based on an innovative collective-movement-of-interfacial-dipole mechanism which causes collective-interfacial-polarization-amplified microwave absorption at the crystalline/disordered and anatase/rutile interfaces. This mechanism is intriguing and upon further exploration may trigger other new concepts and applications.
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Affiliation(s)
- Ting Xia
- Department of Chemistry, University of Missouri - Kansas City, Kansas City, Missouri, 64110, USA
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368
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Zhang X, Yu L, Zhuang C, Peng T, Li R, Li X. Highly Asymmetric Phthalocyanine as a Sensitizer of Graphitic Carbon Nitride for Extremely Efficient Photocatalytic H2 Production under Near-Infrared Light. ACS Catal 2013. [DOI: 10.1021/cs400863c] [Citation(s) in RCA: 233] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Xiaohu Zhang
- College
of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Lijuan Yu
- College
of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Chuansheng Zhuang
- College
of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Tianyou Peng
- College
of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Renjie Li
- College
of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Xingguo Li
- Beijing
National Laboratory for Molecular Sciences (BNLMS), Peking University, Beijing 100190, People’s Republic of China
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369
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Regonini D, Teloeken AC, Alves AK, Berutti FA, Gajda-Schrantz K, Bergmann CP, Graule T, Clemens F. Electrospun TiO(2) fiber composite photoelectrodes for water splitting. ACS APPLIED MATERIALS & INTERFACES 2013; 5:11747-11755. [PMID: 24138632 DOI: 10.1021/am403437q] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This work has focused on the development of electrospun TiO2 fiber composite photoelectrodes for hydrogen production by water splitting. For comparison, similar photoelectrodes were also developed using commercial TiO2 (Aeroxide P25) nanoparticles (NPs). Dispersions of either fibers or P25 NPs were used to make homogenous TiO2 films on fluorine-doped SnO2 (FTO) glass substrates by a doctor blade (DB) technique. Scanning electron microscopy (SEM) analysis revealed a much lower packing density of the DB fibers, with respect to DB-P25 TiO2 NPs; this was also directly reflected by the higher photocurrent measured for the NPs when irradiating the photoelectrodes at a light intensity of 1.5AM (1 sun, 1000 W/m(2)). For a better comparison of fibers vs. NPs, composite photoelectrodes by dip-coating (onto FTO) TiO2 sol-gel (SG) matrixes containing an equal amount (5 or 20 wt %) of either fibers or P25 NPs were also investigated. It emerged that the photoactivity of the fibers was significantly higher. For composites containing 5 wt % TiO2 fibers, a photocurrent of 0.5 mA/cm(2) (at 0.23 V vs Ag/AgCl) was measured, whereas 5 wt % P25 NPs only provided 0.2 mA/cm(2). When increasing to 20 wt % fibers or NPs, the photocurrent decreased, because of the formation of microcracks in the photoelectrodes, because of the shrinkage of the sol-gel. The high photoactivity of the fiber-based electrodes could be confirmed by incident photon to current efficiency (IPCE) measurements. Remarkably, the IPCE of composites containing 5 wt % fibers was between 35% and 40% in the region of 380-320 nm, and when accounting for transmission/reflection losses, the absorbed photon to current efficiency (APCE) was consistently over 60% between 380 nm and 320 nm. The superior photoactivity is attributed to the enhanced electron transport in the electrospun fibers, with respect to P25 NPs. According to this study, it is clear that the electronic connectivity ensured by the sol-gel also contributes positively to the enhanced photocurrent.
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Affiliation(s)
- D Regonini
- Laboratory for High Performance Ceramics, EMPA-Swiss Federal Laboratories for Materials Science & Technology , Überlandstrasse 129, 8600 Dübendorf, Switzerland
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370
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Xia T, Zhang W, Murowchick J, Liu G, Chen X. Built-in electric field-assisted surface-amorphized nanocrystals for high-rate lithium-ion battery. NANO LETTERS 2013; 13:5289-5296. [PMID: 24099557 DOI: 10.1021/nl402810d] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
High-power batteries require fast charge/discharge rates and high capacity besides safe operation. TiO2 has been investigated as a safer alternative candidate to the current graphite or incoming silicon anodes due to higher redox potentials in effectively preventing lithium deposition. However, its charge/discharge rates are reluctant to improve due to poor ion diffusion coefficients, and its capacity fades quickly with rate as only thinner surface layers can be effectively used in faster charge/discharge processes. Here, we demonstrate that surface-amorphized TiO2 nanocrystals greatly improve lithium-ion rechargeable battery performance: 20 times rate and 340% capacity improvement over crystalline TiO2 nanocrystals. This improvement is benefited from the built-in electric field within the nanocrystals that induces much lower lithium-ion diffusion resistance and facilitates its transport in both insertion and extraction processes. This concept thus offers an innovative and general approach toward designing battery materials with better performance.
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Affiliation(s)
- Ting Xia
- Department of Chemistry, University of Missouri - Kansas City , Kansas City, Missouri 64110, United States
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371
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Ma X, Dai Y, Guo M, Huang B. Relative photooxidation and photoreduction activities of the {100}, {101}, and {001} surfaces of anatase TiO2. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:13647-54. [PMID: 24090085 DOI: 10.1021/la403351v] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The photoredox ability of the TiO2 {100}, {101}, and {001} surfaces is investigated by examining the trapping energies, trapping sites, and relative oxidation and reduction potentials of simulated photogenerated holes and electrons in the form of more realistic polaronic states on the basis of density functional electronic structure calculations. Our results enable us to re-estimate their relative photooxidation ({100} > {101} > {001}) and photoreduction ({100} > {101} > {001}) activities, which rectify the conventional understanding. The dual functions of the surface under coordinated atoms acting as active adsorption sites for adsorbates and hindering the population of electrons to the outermost surface layer are identified, and the specific surface geometric structures also play an important role in trapping holes and electrons through the ease of lattice distortion. In addition, we attribute the commonly low photocatalytic performance of the {101} surface to the large and similar trapping energies and adjacent trapping sites for electrons and holes, which result in high electron-hole recombination rates. However, the large difference in trapping energies for electrons and holes on different surfaces allows us to spatially gather electrons and holes on different surfaces by artificially designing the exposing facets of nanocrystals without resorting to the energy band potential difference between surfaces, thus expanding the ideas to improve the photocatalytic properties of materials through the regulation of crystal facets. Our present work can provide a helpful message for the design of more reactive photocatalytic TiO2 nanocrystals and the fabrication of other reactive photocatalysts.
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Affiliation(s)
- Xiangchao Ma
- School of Physics and ‡State Key Laboratory of Crystal Materials, Shandong University , Jinan 250100, People's Republic of China
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372
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Xia T, Li N, Zhang Y, Kruger MB, Murowchick J, Selloni A, Chen X. Directional heat dissipation across the interface in anatase-rutile nanocomposites. ACS APPLIED MATERIALS & INTERFACES 2013; 5:9883-9890. [PMID: 24090213 DOI: 10.1021/am402983k] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Understanding the structures and properties of interfaces in (nano-)composites helps to reveal their important influence on reactivity and overall performance. TiO2 is a technologically important material, and anatase/rutile TiO2 composites have been shown to display enhanced photocatalytic performance over pure anatase or rutile TiO2. This has been attributed to a synergistic effect between the two phases, but the origin of this effect as well as the structure of the interface has not been established. Using Raman spectroscopy, here we provide evidence of distinct differences in the thermal properties of the anatase and rutile moieties in the composite, with anatase becoming effectively much warmer than the rutile phase under laser irradiation. With the help of first-principles calculations, we analyze the atomic structure and unique electronic properties of the composite and infer possible reasons for the directional heat dissipation across the interface.
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Affiliation(s)
- Ting Xia
- Department of Chemistry, ⊥Department of Physics and Astronomy, and ||Department of Geosciences, University of Missouri-Kansas City , Kansas City, Missouri 64110, United States
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373
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Liao JY, Xiao X, Higgins D, Lee D, Hassan F, Chen Z. Hierarchical Li4Ti5O12-TiO2 composite microsphere consisting of nanocrystals for high power Li-ion batteries. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.06.073] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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374
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Photogeneration of hydrogen from water using CdSe nanocrystals demonstrating the importance of surface exchange. Proc Natl Acad Sci U S A 2013; 110:16716-23. [PMID: 24082134 DOI: 10.1073/pnas.1316755110] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Unique tripodal S-donor capping agents with an attached carboxylate are found to bind tightly to the surface of CdSe nanocrystals (NCs), making the latter water soluble. Unlike that in similarly solubilized CdSe NCs with one-sulfur or two-sulfur capping agents, dissociation from the NC surface is greatly reduced. The impact of this behavior is seen in the photochemical generation of H2 in which the CdSe NCs function as the light absorber with metal complexes in aqueous solution as the H2-forming catalyst and ascorbic acid as the electron donor source. This precious-metal-free system for H2 generation from water using [Co(bdt)2](-) (bdt, benzene-1,2-dithiolate) as the catalyst exhibits excellent activity with a quantum yield for H2 formation of 24% at 520 nm light and durability with >300,000 turnovers relative to catalyst in 60 h.
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375
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Tian J, Sang Y, Yu G, Jiang H, Mu X, Liu H. A Bi2 WO6 -based hybrid photocatalyst with broad spectrum photocatalytic properties under UV, visible, and near-infrared irradiation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5075-80. [PMID: 23852936 DOI: 10.1002/adma.201302014] [Citation(s) in RCA: 233] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Indexed: 05/02/2023]
Abstract
Near-infrared active photocatalytic properties of Bi2 WO6 nanosheets owing to the oxygen vacancies of the Bi2 WO6 nanosheets are reported. The broad spectrum photocatalyst, Bi2 WO6 -TiO2 nanobelt heterostructures, are obtained by assembling Bi2 WO6 nanocrystals on TiO2 nanobelts. The active light band of the novel hybrid photocatalyst with high photocatalytic activity covers full-spectrum solar light including the UV, visible, and near-infrared ranges.
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Affiliation(s)
- Jian Tian
- State Key Laboratory of Crystal materials, Shandong University, Jinan, 250100, P. R. China
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376
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Leandri V, Ruffo R, Trifiletti V, Abbotto A. Asymmetric Tribranched Dyes: An Intramolecular Cosensitization Approach for Dye-Sensitized Solar Cells. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300962] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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377
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Liu L, Yu PY, Chen X, Mao SS, Shen DZ. Hydrogenation and disorder in engineered black TiO2. PHYSICAL REVIEW LETTERS 2013; 111:065505. [PMID: 23971586 DOI: 10.1103/physrevlett.111.065505] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 03/25/2013] [Indexed: 06/02/2023]
Abstract
A new form of TiO2 which is black in color has been shown to exhibit high efficiency for photocatalytic reactions under solar radiation [X. Chen, L. Liu, P. Y. Yu, and S. S. Mao, Science 331, 746 (2011)]. However, the mechanism behind this disorder-engineering process is not fully understood. In this Letter, based on density functional theory, we describe the role of hydrogen in producing lattice disorder in the anatase nanocrystals. We clarify further that the highly localized nature of the midgap states results in spatial separation of photoexcited electrons and holes in black TiO2, and that accounts for its high photocatalytic efficiency.
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Affiliation(s)
- Lei Liu
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, No. 3888 Dongnanhu Road, Changchun 130033, People's Republic of China
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378
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Dammer SJ, Solntsev PV, Sabin JR, Nemykin VN. Synthesis, Characterization, and Electron-Transfer Processes in Indium Ferrocenyl-Containing Porphyrins and Their Fullerene Adducts. Inorg Chem 2013; 52:9496-510. [DOI: 10.1021/ic401163y] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Samantha J. Dammer
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive,
Duluth, Minnesota 55812, United States
| | - Pavlo V. Solntsev
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive,
Duluth, Minnesota 55812, United States
| | - Jared R. Sabin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive,
Duluth, Minnesota 55812, United States
| | - Victor N. Nemykin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, 1039 University Drive,
Duluth, Minnesota 55812, United States
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379
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Cristaldi DA, Gulino A. Functionalization of SnO₂ crystals with a covalently-assembled porphyrin monolayer. CHEMSUSCHEM 2013; 6:1031-1036. [PMID: 23610085 DOI: 10.1002/cssc.201300149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 03/01/2013] [Indexed: 06/02/2023]
Abstract
The functionalization of micro- and nano-sized metal-oxide powders offers many advantages because of their large surface areas and, therefore, the large number of functional molecules that can be grafted onto the grain surfaces. Porphyrin molecules on large band-gap semiconducting metal oxides represent key materials for many different optical and electronic applications. Herein, we have proposed a general two-step procedure for the functionalization of metal-oxide crystals with dye-sensitizers. In particular, we functionalized SnO₂ nanoparticles with a monolayer of the bifunctional trichloro[4-(chloromethyl)phenyl]silane. Then, a monolayer of 5,10,15,20-tetrakis(4-hydroxyphenyl)-21H,23H-porphyne was covalently bound to the silanized SnO₂ grains. IR, UV/Vis, and luminescence measurements were used for optical characterization. The measured footprint of the grafted porphyrin molecules indicated total surface coverage of the grains. The surface electronic characterization was performed by using X-ray photoelectron spectroscopy. Emission measurements revealed two strong bands at 664.1 and 721.0 nm that were attributed to the porphyrin monolayer assembled on the surface of the SnO₂ crystals.
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Affiliation(s)
- Domenico A Cristaldi
- Department of Chemistry, University of Catania, and INSTM UdR of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
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380
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Ortiz JHM, Vega N, Comedi D, Tirado M, Romero I, Fontrodona X, Parella T, Vieyra FEM, Borsarelli CD, Katz NE. Improving the Photosensitizing Properties of Ruthenium Polypyridyl Complexes Using 4-Methyl-2,2′-bipyridine-4′-carbonitrile as an Auxiliary Ligand. Inorg Chem 2013; 52:4950-62. [DOI: 10.1021/ic302594b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Juan H. Mecchia Ortiz
- INQUINOA-CONICET,
Instituto de Química Física, Facultad de Bioquímica,
Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 491, (T4000INI) San Miguel de Tucumán, Argentina
| | - Nadia Vega
- LAFISO and LPDM, Facultad de
Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, Avda. Independencia 1800, (T4002BLR)
San Miguel de Tucumán, Argentina
| | - David Comedi
- LAFISO and LPDM, Facultad de
Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, Avda. Independencia 1800, (T4002BLR)
San Miguel de Tucumán, Argentina
| | - Mónica Tirado
- LAFISO and LPDM, Facultad de
Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, Avda. Independencia 1800, (T4002BLR)
San Miguel de Tucumán, Argentina
| | - Isabel Romero
- Departament de Química and Serveis Tècnics
de Recerca (STR), Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - Xavier Fontrodona
- Departament de Química and Serveis Tècnics
de Recerca (STR), Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - Teodor Parella
- Servei de RMN, Universitat Autònoma de Barcelona, Bellaterra E-08193, Barcelona, Spain
| | - F. Eduardo Morán Vieyra
- Laboratorio de Cinética
y Fotoquímica, Centro de Investigaciones y Transferencia de
Santiago del Estero (CITSE-CONICET), Universidad Nacional de Santiago del Estero, RN 9, Km 1125, (4206) Santiago
del Estero, Argentina
| | - Claudio D. Borsarelli
- Laboratorio de Cinética
y Fotoquímica, Centro de Investigaciones y Transferencia de
Santiago del Estero (CITSE-CONICET), Universidad Nacional de Santiago del Estero, RN 9, Km 1125, (4206) Santiago
del Estero, Argentina
| | - Néstor E. Katz
- INQUINOA-CONICET,
Instituto de Química Física, Facultad de Bioquímica,
Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 491, (T4000INI) San Miguel de Tucumán, Argentina
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381
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Liu M, Zheng Y, Xie S, Li N, Lu N, Wang J, Kim MJ, Guo L, Xia Y. Facile synthesis of Pd–Ir bimetallic octapods and nanocages through galvanic replacement and co-reduction, and their use for hydrazine decomposition. Phys Chem Chem Phys 2013; 15:11822-9. [DOI: 10.1039/c3cp51950c] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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382
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Xu Y, Wu R, Zhang J, Shi Y, Zhang B. Anion-exchange synthesis of nanoporous FeP nanosheets as electrocatalysts for hydrogen evolution reaction. Chem Commun (Camb) 2013; 49:6656-8. [DOI: 10.1039/c3cc43107j] [Citation(s) in RCA: 402] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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383
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Hyam RS, Choi D. Effects of titanium foil thickness on TiO2 nanostructures synthesized by anodization. RSC Adv 2013. [DOI: 10.1039/c3ra40581h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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384
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Vetter K, Proch S, Ganteför GF, Behera S, Jena P. Hydrogen mimicking the properties of coinage metal atoms in Cu and Ag monohydride clusters. Phys Chem Chem Phys 2013; 15:21007-15. [DOI: 10.1039/c3cp53561d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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385
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Zwijnenburg MA. Excited state localisation cascades in inorganic semiconductor nanoparticles. Phys Chem Chem Phys 2013; 15:11119-27. [DOI: 10.1039/c3cp50800e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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386
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Wang G, Chen G, Yu Y, Zhou X, Teng Y. Mixed solvothermal synthesis of hierarchical ZnIn2S4 spheres: specific facet-induced photocatalytic activity enhancement and a DFT elucidation. RSC Adv 2013. [DOI: 10.1039/c3ra42245c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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387
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Jing L, Zhou W, Tian G, Fu H. Surface tuning for oxide-based nanomaterials as efficient photocatalysts. Chem Soc Rev 2013; 42:9509-49. [DOI: 10.1039/c3cs60176e] [Citation(s) in RCA: 515] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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388
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Zhou H, Guo J, Li P, Fan T, Zhang D, Ye J. Leaf-architectured 3D hierarchical artificial photosynthetic system of perovskite titanates towards CO₂ photoreduction into hydrocarbon fuels. Sci Rep 2013; 3:1667. [PMID: 23588925 PMCID: PMC3627189 DOI: 10.1038/srep01667] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 03/28/2013] [Indexed: 12/24/2022] Open
Abstract
The development of an "artificial photosynthetic system" (APS) having both the analogous important structural elements and reaction features of photosynthesis to achieve solar-driven water splitting and CO₂ reduction is highly challenging. Here, we demonstrate a design strategy for a promising 3D APS architecture as an efficient mass flow/light harvesting network relying on the morphological replacement of a concept prototype-leaf's 3D architecture into perovskite titanates for CO₂ photoreduction into hydrocarbon fuels (CO and CH₄). The process uses artificial sunlight as the energy source, water as an electron donor and CO₂ as the carbon source, mimicking what real leaves do. To our knowledge this is the first example utilizing biological systems as "architecture-directing agents" for APS towards CO₂ photoreduction, which hints at a more general principle for APS architectures with a great variety of optimized biological geometries. This research would have great significance for the potential realization of global carbon neutral cycle.
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Affiliation(s)
- Han Zhou
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
- State Key Lab of Metal Matrix Composites, Shanghai Jiaotong University, Shanghai, 200240, P. R. China
| | - Jianjun Guo
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Japan
| | - Peng Li
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Japan
| | - Tongxiang Fan
- State Key Lab of Metal Matrix Composites, Shanghai Jiaotong University, Shanghai, 200240, P. R. China
| | - Di Zhang
- State Key Lab of Metal Matrix Composites, Shanghai Jiaotong University, Shanghai, 200240, P. R. China
| | - Jinhua Ye
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1, Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Environmental Remediation Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Japan
- TU−NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
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389
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Ding C, Shi J, Wang D, Wang Z, Wang N, Liu G, Xiong F, Li C. Visible light driven overall water splitting using cocatalyst/BiVO4 photoanode with minimized bias. Phys Chem Chem Phys 2013; 15:4589-95. [DOI: 10.1039/c3cp50295c] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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390
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Zhang D, Yang M. Band structure engineering of TiO2 nanowires by n–p codoping for enhanced visible-light photoelectrochemical water-splitting. Phys Chem Chem Phys 2013; 15:18523-9. [DOI: 10.1039/c3cp51044a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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391
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Xu J, Jin J, Kim K, Shin YJ, Kim HJ, Son SU. One-pot galvanic formation of ultrathin-shell Sn/CoOx nanohollows as high performance anode materials in lithium ion batteries. Chem Commun (Camb) 2013; 49:5981-3. [DOI: 10.1039/c3cc42109k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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392
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Zhang X, Yu L, Zhuang C, Peng T, Li R, Li X. Highly efficient visible/near-IR-light-driven photocatalytic H2 production over asymmetric phthalocyanine-sensitized TiO2. RSC Adv 2013. [DOI: 10.1039/c3ra41975d] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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393
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Sridharan K, Jang E, Park TJ. Deformation assisted fabrication of uniform spindle, tube and rod shaped nanoscale 3D TiO2 architectures and their photocatalytic activity. CrystEngComm 2013. [DOI: 10.1039/c3ce41481g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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