99951
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Kempa TJ, Bediako DK, Jones EC, Lieber CM, Nocera DG. Facile, Rapid, and Large-Area Periodic Patterning of Semiconductor Substrates with Submicron Inorganic Structures. J Am Chem Soc 2015; 137:3739-42. [DOI: 10.1021/ja5118717] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas J. Kempa
- Department of Chemistry
and Chemical Biology and ‡School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - D. Kwabena Bediako
- Department of Chemistry
and Chemical Biology and ‡School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Evan C. Jones
- Department of Chemistry
and Chemical Biology and ‡School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Charles M. Lieber
- Department of Chemistry
and Chemical Biology and ‡School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Daniel G. Nocera
- Department of Chemistry
and Chemical Biology and ‡School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
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99952
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B-Site Metal (Pd, Pt, Ag, Cu, Zn, Ni) Promoted La1−xSrxCo1−yFeyO3–δ Perovskite Oxides as Cathodes for IT-SOFCs. Catalysts 2015. [DOI: 10.3390/catal5010366] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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99953
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Flores AFC, Malavolta JL, Frigo LM, Doneda M, Flores DC. From Levulinic Acid to Biheterocycles: Synthesis of 1-[(5-Hydroxy-5-trifluoromethyl-3-substituted-4,5-dihydro-1H-pyrazol-1-yl)-3-(5-trifluoromethyl-1H-pyrazol-3-yl)propan-1-ones. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2014.1003352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Alex F. C. Flores
- Escola de Química e Alimentos, Universidade Federal de Rio Grande, Rio Grande, Brazil
| | - Juliana L. Malavolta
- Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Leandro M. Frigo
- Instituto Federal Farroupilha, Campus São Vicente do Sul, São Vicente do Sul, Brazil
| | - Morgana Doneda
- Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Darlene C. Flores
- Escola de Química e Alimentos, Universidade Federal de Rio Grande, Rio Grande, Brazil
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99954
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Structure and Transport Properties of the BiCuSeO-BiCuSO Solid Solution. MATERIALS 2015; 8:1043-1058. [PMID: 28787987 PMCID: PMC5455453 DOI: 10.3390/ma8031043] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 02/24/2015] [Accepted: 03/05/2015] [Indexed: 11/17/2022]
Abstract
In this paper, we report on the crystal structure and the electrical and thermal transport properties of the BiCuSe1−xSxO series. From the evolution of the structural parameters with the substitution rate, we can confidently conclude that a complete solid solution exists between the BiCuSeO and BiCuSO end members, without any miscibility gap. However, the decrease of the stability of the materials when increasing the sulfur fraction, with a simultaneous volatilization, makes it difficult to obtain S-rich samples in a single phase. The band gap of the materials linearly increases between 0.8 eV for BiCuSeO and 1.1 eV in BiCuSO, and the covalent character of the Cu-Ch (Ch = chalcogen element, namely S or Se here) bond slightly decreases when increasing the sulfur fraction. The thermal conductivity of the end members is nearly the same, but a significant decrease is observed for the samples belonging to the solid solution, which can be explained by point defect scattering due to atomic mass and radii fluctuations between Se and S. When increasing the sulfur fraction, the electrical resistivity of the samples strongly increases, which could be linked to an evolution of the energy of formation of copper vacancies, which act as acceptor dopants in these materials.
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99955
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Structure-properties relationships in triarylamine-based donor-acceptor molecules containing naphtyl groups as donor material for organic solar cells. Sci Rep 2015; 5:9031. [PMID: 25761773 PMCID: PMC4356976 DOI: 10.1038/srep09031] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 02/10/2015] [Indexed: 11/16/2022] Open
Abstract
The effects of replacing the phenyl rings of triphenylamine (TPA) by naphtyl groups are analysed on a series of push-pull molecules containing a 2-thienyl-dicyanovinyl acceptor group. UV-Vis absorption spectroscopy and cyclic voltammetry show that the introduction of one or two naphtyl groups in the structure has limited effects on the optical properties and energy levels of the molecule. On the other hand, the evaluation of the compounds as donor material in bi-layer solar cells with C60 as acceptor shows that the number and mode of linkage of the naphtyl groups exert a marked influence on the power conversion efficiency (PCE) of the cell. Two naphtyl groups lead to a decrease of PCE with respect to TPA, while a single naphtyl group produces opposite effects depending on the linking mode. Compared to TPA, an alpha-naphtyl group leads to a small decrease of PCE while in contrast a beta-naphtyl leads to a ~35% increase of PCE due to improved short-circuit current density (Jsc) and fill-factor. The determination of the hole-mobility of these two donors by the space-charge-limited current method shows that these effects are correlated with the higher hole-mobility of the β-naphtyl compound.
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99956
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Cowan MG, McDanel WM, Funke HH, Kohno Y, Gin DL, Noble RD. High Ethene/Ethane Selectivity in 2,2′-Bipyridine-Based Silver(I) Complexes by Removal of Coordinated Solvent. Angew Chem Int Ed Engl 2015; 54:5740-3. [DOI: 10.1002/anie.201500251] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Revised: 02/14/2015] [Indexed: 11/05/2022]
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99957
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Liu J, Hu J, Deng Q, Mo J, Xie H, Liu Z, Xiong Y, Wu X, Wu Y. Aqueous Rechargeable Batteries for Large-scale Energy Storage. Isr J Chem 2015. [DOI: 10.1002/ijch.201400155] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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99958
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Copenhaver TS, Purohit KH, Domalaon K, Pham L, Burgess BJ, Manorothkul N, Galvan V, Sotez S, Gomez FA, Haan JL. A microfluidic direct formate fuel cell on paper. Electrophoresis 2015; 36:1825-9. [PMID: 25546700 DOI: 10.1002/elps.201400554] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 12/09/2014] [Accepted: 12/11/2014] [Indexed: 11/10/2022]
Abstract
We describe the first direct formate fuel cell on a paper microfluidic platform. In traditional membrane-less microfluidic fuel cells (MFCs), external pumping consumes power produced by the fuel cell in order to maintain co-laminar flow of the anode stream and oxidant stream to prevent mixing. However, in paper microfluidics, capillary action drives flow while minimizing stream mixing. In this work, we demonstrate a paper MFC that uses formate and hydrogen peroxide as the anode fuel and cathode oxidant, respectively. Using these materials we achieve a maximum power density of nearly 2.5 mW/mg Pd. In a series configuration, our MFC achieves an open circuit voltage just over 1 V, and in a parallel configuration, short circuit of 20 mA absolute current. We also demonstrate that the MFC does not require continuous flow of fuel and oxidant to produce power. We found that we can pre-saturate the materials on the paper, stop the electrolyte flow, and still produce approximately 0.5 V for 15 min. This type of paper MFC has potential applications in point-of-care diagnostic devices and other electrochemical sensors.
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Affiliation(s)
- Thomas S Copenhaver
- Department of Chemistry and Biochemistry, California State University, Fullerton, CA, USA
| | - Krutarth H Purohit
- Department of Chemistry and Biochemistry, California State University, Fullerton, CA, USA
| | - Kryls Domalaon
- Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA
| | - Linda Pham
- Department of Chemistry and Biochemistry, California State University, Fullerton, CA, USA
| | - Brianna J Burgess
- Department of Chemistry and Biochemistry, California State University, Fullerton, CA, USA
| | - Natalie Manorothkul
- Department of Chemistry and Biochemistry, California State University, Fullerton, CA, USA
| | - Vicente Galvan
- Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA
| | - Samantha Sotez
- Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA
| | - Frank A Gomez
- Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA
| | - John L Haan
- Department of Chemistry and Biochemistry, California State University, Fullerton, CA, USA
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99959
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Ruberu TPA, Dong Y, Das A, Eisenberg R. Photoelectrochemical Generation of Hydrogen from Water Using a CdSe Quantum Dot-Sensitized Photocathode. ACS Catal 2015. [DOI: 10.1021/cs5021035] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T. Purnima A. Ruberu
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Yuming Dong
- School
of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Amit Das
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Richard Eisenberg
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
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99960
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Chen G, Cheng H, Zhang W, Yang Z, Qiu M, Zhu X, Chen M. Template-free synthesis of single-/double-walled TiO2nanovesicles: Potential photocatalysts for engineering application. AIChE J 2015. [DOI: 10.1002/aic.14774] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gongde Chen
- Dept. of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 P.R. China
| | - He Cheng
- Dept. of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 P.R. China
| | - Weixin Zhang
- Dept. of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 P.R. China
| | - Zeheng Yang
- Dept. of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 P.R. China
| | - Maoqin Qiu
- Dept. of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 P.R. China
| | - Xiao Zhu
- Dept. of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 P.R. China
| | - Min Chen
- Dept. of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering; Hefei University of Technology; Hefei Anhui 230009 P.R. China
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99961
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Tremblay PL, Zhang T. Electrifying microbes for the production of chemicals. Front Microbiol 2015; 6:201. [PMID: 25814988 PMCID: PMC4356085 DOI: 10.3389/fmicb.2015.00201] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 02/24/2015] [Indexed: 01/06/2023] Open
Abstract
Powering microbes with electrical energy to produce valuable chemicals such as biofuels has recently gained traction as a biosustainable strategy to reduce our dependence on oil. Microbial electrosynthesis (MES) is one of the bioelectrochemical approaches developed in the last decade that could have critical impact on the current methods of chemical synthesis. MES is a process in which electroautotrophic microbes use electrical current as electron source to reduce CO2 to multicarbon organics. Electricity necessary for MES can be harvested from renewable resources such as solar energy, wind turbine, or wastewater treatment processes. The net outcome is that renewable energy is stored in the covalent bonds of organic compounds synthesized from greenhouse gas. This review will discuss the future of MES and the challenges that lie ahead for its development into a mature technology.
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Affiliation(s)
- Pier-Luc Tremblay
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Hørsholm Denmark
| | - Tian Zhang
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Hørsholm Denmark
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99962
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Takei K, Honda W, Harada S, Arie T, Akita S. Toward flexible and wearable human-interactive health-monitoring devices. Adv Healthc Mater 2015; 4:487-500. [PMID: 25425072 DOI: 10.1002/adhm.201400546] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 10/25/2014] [Indexed: 01/08/2023]
Abstract
This Progress Report introduces flexible wearable health-monitoring devices that interact with a person by detecting from and stimulating the body. Interactive health-monitoring devices should be highly flexible and attach to the body without awareness like a bandage. This type of wearable health-monitoring device will realize a new class of electronics, which will be applicable not only to health monitoring, but also to other electrical devices. However, to realize wearable health-monitoring devices, many obstacles must be overcome to economically form the active electrical components on a flexible substrate using macroscale fabrication processes. In particular, health-monitoring sensors and curing functions need to be integrated. Here recent developments and advancements toward flexible health-monitoring devices are presented, including conceptual designs of human-interactive devices.
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Affiliation(s)
- Kuniharu Takei
- Department of Physics and Electronics; Osaka Prefecture University; Sakai Osaka 599-8531 Japan
| | - Wataru Honda
- Department of Physics and Electronics; Osaka Prefecture University; Sakai Osaka 599-8531 Japan
| | - Shingo Harada
- Department of Physics and Electronics; Osaka Prefecture University; Sakai Osaka 599-8531 Japan
| | - Takayuki Arie
- Department of Physics and Electronics; Osaka Prefecture University; Sakai Osaka 599-8531 Japan
| | - Seiji Akita
- Department of Physics and Electronics; Osaka Prefecture University; Sakai Osaka 599-8531 Japan
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99963
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Kakuda S, Rolle C, Ohkubo K, Siegler MA, Karlin KD, Fukuzumi S. Lewis acid-induced change from four- to two-electron reduction of dioxygen catalyzed by copper complexes using scandium triflate. J Am Chem Soc 2015; 137:3330-7. [PMID: 25659416 PMCID: PMC4630010 DOI: 10.1021/ja512584r] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Mononuclear copper complexes, [(tmpa)Cu(II)(CH3CN)](ClO4)2 (1, tmpa = tris(2-pyridylmethyl)amine) and [(BzQ)Cu(II)(H2O)2](ClO4)2 (2, BzQ = bis(2-quinolinylmethyl)benzylamine)], act as efficient catalysts for the selective two-electron reduction of O2 by ferrocene derivatives in the presence of scandium triflate (Sc(OTf)3) in acetone, whereas 1 catalyzes the four-electron reduction of O2 by the same reductant in the presence of Brønsted acids such as triflic acid. Following formation of the peroxo-bridged dicopper(II) complex [(tmpa)Cu(II)(O2)Cu(II)(tmpa)](2+), the two-electron reduced product of O2 with Sc(3+) is observed to be scandium peroxide ([Sc(III)(O2(2-))](+)). In the presence of 3 equiv of hexamethylphosphoric triamide (HMPA), [Sc(III)(O2(2-))](+) was oxidized by [Fe(bpy)3](3+) (bpy = 2,2-bipyridine) to the known superoxide species [(HMPA)3Sc(III)(O2(•-))](2+) as detected by EPR spectroscopy. A kinetic study revealed that the rate-determining step of the catalytic cycle for the two-electron reduction of O2 with 1 is electron transfer from Fc* to 1 to give a cuprous complex which is highly reactive toward O2, whereas the rate-determining step with 2 is changed to the reaction of the cuprous complex with O2 following electron transfer from ferrocene derivatives to 2. The explanation for the change in catalytic O2-reaction stoichiometry from four-electron with Brønsted acids to two-electron reduction in the presence of Sc(3+) and also for the change in the rate-determining step is clarified based on a kinetics interrogation of the overall catalytic cycle as well as each step of the catalytic cycle with study of the observed effects of Sc(3+) on copper-oxygen intermediates.
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Affiliation(s)
- Saya Kakuda
- Department of Material and Life Science, Division of Advanced Science and Biotechnology, Graduate School of Engineering, ALCA (JST), Osaka University, Suita, Osaka 565-0871, Japan
| | - Clarence Rolle
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Kei Ohkubo
- Department of Material and Life Science, Division of Advanced Science and Biotechnology, Graduate School of Engineering, ALCA (JST), Osaka University, Suita, Osaka 565-0871, Japan
| | - Maxime A. Siegler
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Kenneth D. Karlin
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Shunichi Fukuzumi
- Department of Material and Life Science, Division of Advanced Science and Biotechnology, Graduate School of Engineering, ALCA (JST), Osaka University, Suita, Osaka 565-0871, Japan
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99964
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Porous molybdenum carbide nano-octahedrons synthesized via confined carburization in metal-organic frameworks for efficient hydrogen production. Nat Commun 2015; 6:6512. [PMID: 25758159 PMCID: PMC4382699 DOI: 10.1038/ncomms7512] [Citation(s) in RCA: 595] [Impact Index Per Article: 66.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 02/04/2015] [Indexed: 01/20/2023] Open
Abstract
Electrochemical water splitting has been considered as a promising approach to produce clean and sustainable hydrogen fuel. However, the lack of high-performance and low-cost electrocatalysts for hydrogen evolution reaction hinders the large-scale application. As a new class of porous materials with tunable structure and composition, metal-organic frameworks have been considered as promising candidates to synthesize various functional materials. Here we demonstrate a metal-organic frameworks-assisted strategy for synthesizing nanostructured transition metal carbides based on the confined carburization in metal-organic frameworks matrix. Starting from a compound consisting of copper-based metal-organic frameworks host and molybdenum-based polyoxometalates guest, mesoporous molybdenum carbide nano-octahedrons composed of ultrafine nanocrystallites are successfully prepared as a proof of concept, which exhibit remarkable electrocatalytic performance for hydrogen production from both acidic and basic solutions. The present study provides some guidelines for the design and synthesis of nanostructured electrocatalysts. There is extensive research into non-platinum electrocatalysts for hydrogen evolution. Here, the authors report a molybdenum carbide catalyst, prepared via the carburization of a copper metal-organic framework host/molybdenum-based polyoxometalates guest system, and demonstrate its catalytic activity.
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99965
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Zhang X, Lai Z, Liu Z, Tan C, Huang Y, Li B, Zhao M, Xie L, Huang W, Zhang H. A Facile and Universal Top-Down Method for Preparation of Monodisperse Transition-Metal Dichalcogenide Nanodots. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501071] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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99966
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Kan B, Li M, Zhang Q, Liu F, Wan X, Wang Y, Ni W, Long G, Yang X, Feng H, Zuo Y, Zhang M, Huang F, Cao Y, Russell TP, Chen Y. A series of simple oligomer-like small molecules based on oligothiophenes for solution-processed solar cells with high efficiency. J Am Chem Soc 2015; 137:3886-93. [PMID: 25736989 DOI: 10.1021/jacs.5b00305] [Citation(s) in RCA: 314] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A series of acceptor-donor-acceptor simple oligomer-like small molecules based on oligothiophenes, namely, DRCN4T-DRCN9T, were designed and synthesized. Their optical, electrical, and thermal properties and photovoltaic performances were systematically investigated. Except for DRCN4T, excellent performances were obtained for DRCN5T-DRCN9T. The devices based on DRCN5T, DRCN7T, and DRCN9T with axisymmetric chemical structures exhibit much higher short-circuit current densities than those based on DRCN6T and DRCN8T with centrosymmetric chemical structures, which is attributed to their well-developed fibrillar network with a feature size less than 20 nm. The devices based on DRCN5T/PC71BM showed a notable certified power conversion efficiency (PCE) of 10.10% under AM 1.5G irradiation (100 mW cm(-2)) using a simple solution spin-coating fabrication process. This is the highest PCE for single-junction small-molecule-based organic photovoltaics (OPVs) reported to date. DRCN5T is a rather simpler molecule compared with all of the other high-performance molecules in OPVs to date, and this might highlight its advantage in the future possible commercialization of OPVs. These results demonstrate that a fine and balanced modification/design of chemical structure can make significant performance differences and that the performance of solution-processed small-molecule-based solar cells can be comparable to or even surpass that of their polymer counterparts.
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Affiliation(s)
- Bin Kan
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Miaomiao Li
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Qian Zhang
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Feng Liu
- ‡Polymer Science and Engineering Department, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Xiangjian Wan
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yunchuang Wang
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Wang Ni
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Guankui Long
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xuan Yang
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Huanran Feng
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yi Zuo
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Mingtao Zhang
- ∥Computational Center for Molecular Science, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Fei Huang
- §State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Yong Cao
- §State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Thomas P Russell
- ‡Polymer Science and Engineering Department, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Yongsheng Chen
- †State Key Laboratory and Institute of Elemento-Organic Chemistry and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
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99967
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Wang Y, Vogelgsang F, Román-Leshkov Y. Acid-catalyzed Oxidation of Levulinate Derivatives to Succinates under Mild Conditions. ChemCatChem 2015. [DOI: 10.1002/cctc.201403014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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99968
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Yao Z, Zhang M, Wu H, Yang L, Li R, Wang P. Donor/Acceptor Indenoperylene Dye for Highly Efficient Organic Dye-Sensitized Solar Cells. J Am Chem Soc 2015; 137:3799-802. [DOI: 10.1021/jacs.5b01537] [Citation(s) in RCA: 488] [Impact Index Per Article: 54.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Zhaoyang Yao
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Min Zhang
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Heng Wu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Lin Yang
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Renzhi Li
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Peng Wang
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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99969
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Li H, Hwang YJ, Earmme T, Huber RC, Courtright BAE, O’Brien C, Tolbert SH, Jenekhe SA. Polymer/Polymer Blend Solar Cells Using Tetraazabenzodifluoranthene Diimide Conjugated Polymers as Electron Acceptors. Macromolecules 2015. [DOI: 10.1021/ma502042k] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Haiyan Li
- Department
of Chemical Engineering and Department of Chemistry, University of Washington, Seattle, Washington 98195-1750, United States
| | - Ye-Jin Hwang
- Department
of Chemical Engineering and Department of Chemistry, University of Washington, Seattle, Washington 98195-1750, United States
| | - Taeshik Earmme
- Department
of Chemical Engineering and Department of Chemistry, University of Washington, Seattle, Washington 98195-1750, United States
| | - Rachel C. Huber
- Department
of Chemistry and Biochemistry and the California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California 90095-1569, United States
| | - Brett A. E. Courtright
- Department
of Chemical Engineering and Department of Chemistry, University of Washington, Seattle, Washington 98195-1750, United States
| | - Conor O’Brien
- Department
of Chemical Engineering and Department of Chemistry, University of Washington, Seattle, Washington 98195-1750, United States
| | - Sarah H. Tolbert
- Department
of Chemistry and Biochemistry and the California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California 90095-1569, United States
- Department
of Materials Science and Engineering, University of California, Los Angeles, Los
Angeles, California 90095, United States
| | - Samson A. Jenekhe
- Department
of Chemical Engineering and Department of Chemistry, University of Washington, Seattle, Washington 98195-1750, United States
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99970
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A molecular catalyst for water oxidation that binds to metal oxide surfaces. Nat Commun 2015; 6:6469. [PMID: 25757425 PMCID: PMC4382695 DOI: 10.1038/ncomms7469] [Citation(s) in RCA: 194] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 01/30/2015] [Indexed: 12/23/2022] Open
Abstract
Molecular catalysts are known for their high activity and tunability, but their solubility and limited stability often restrict their use in practical applications. Here we describe how a molecular iridium catalyst for water oxidation directly and robustly binds to oxide surfaces without the need for any external stimulus or additional linking groups. On conductive electrode surfaces, this heterogenized molecular catalyst oxidizes water with low overpotential, high turnover frequency and minimal degradation. Spectroscopic and electrochemical studies show that it does not decompose into iridium oxide, thus preserving its molecular identity, and that it is capable of sustaining high activity towards water oxidation with stability comparable to state-of-the-art bulk metal oxide catalysts.
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99971
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Ko YW, Teh PF, Pramana SS, Wong CL, Su T, Li L, Madhavi S. Electrospun Single-Phase Na1.2V3O8Materials with Tunable Morphologies as Cathodes for Rechargeable Lithium-Ion Batteries. ChemElectroChem 2015. [DOI: 10.1002/celc.201500023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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99972
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Zhang X, Lai Z, Liu Z, Tan C, Huang Y, Li B, Zhao M, Xie L, Huang W, Zhang H. A Facile and Universal Top-Down Method for Preparation of Monodisperse Transition-Metal Dichalcogenide Nanodots. Angew Chem Int Ed Engl 2015; 54:5425-8. [DOI: 10.1002/anie.201501071] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Indexed: 11/06/2022]
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99973
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Etienne T. Probing the Locality of Excited States with Linear Algebra. J Chem Theory Comput 2015; 11:1692-9. [DOI: 10.1021/ct501163b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Thibaud Etienne
- CNRS, Théorie-Modélisation-Simulation,
SRSMC, , Université de Lorraine—Nancy, Boulevard des Aiguillettes 54506, Vandoeuvre-lès-Nancy, France
- Unité de Chimie Physique
Théorique et Structurale, Université de Namur, Rue de Bruxelles
61, 5000 Namur, Belgium
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99974
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Ogawa Y, Kato K, Miyake T, Nagamine K, Ofuji T, Yoshino S, Nishizawa M. Organic transdermal iontophoresis patch with built-in biofuel cell. Adv Healthc Mater 2015; 4:506-10. [PMID: 25402232 DOI: 10.1002/adhm.201400457] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 09/15/2014] [Indexed: 01/11/2023]
Abstract
A completely organic iontophoresis patch is reported. A built-in biofuel cell is mounted on the patch that generates transdermal iontophoretic administration of compounds into the skin. The amplitude of transdermal current is tuned by integrating a conducting polymer-based stretchable resistor of predetermined resistance.
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Affiliation(s)
- Yudai Ogawa
- Department of Bioengineering and Robotics; Tohoku University; 6-6-1 Aramaki Aoba Sendai 980-8579 Japan
| | - Koichiro Kato
- Department of Bioengineering and Robotics; Tohoku University; 6-6-1 Aramaki Aoba Sendai 980-8579 Japan
| | - Takeo Miyake
- Department of Bioengineering and Robotics; Tohoku University; 6-6-1 Aramaki Aoba Sendai 980-8579 Japan
| | - Kuniaki Nagamine
- Department of Bioengineering and Robotics; Tohoku University; 6-6-1 Aramaki Aoba Sendai 980-8579 Japan
| | - Takuya Ofuji
- Department of Bioengineering and Robotics; Tohoku University; 6-6-1 Aramaki Aoba Sendai 980-8579 Japan
| | - Syuhei Yoshino
- Department of Bioengineering and Robotics; Tohoku University; 6-6-1 Aramaki Aoba Sendai 980-8579 Japan
| | - Matsuhiko Nishizawa
- Department of Bioengineering and Robotics; Tohoku University; 6-6-1 Aramaki Aoba Sendai 980-8579 Japan
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99975
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Gonçalves FA, Santos ESD, de Macedo GR. Alcoholic fermentation ofSaccharomyces cerevisiae,Pichia stipitisandZymomonas mobilisin the presence of inhibitory compounds and seawater. J Basic Microbiol 2015; 55:695-708. [DOI: 10.1002/jobm.201400589] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 11/16/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Fabiano Avelino Gonçalves
- Laboratory of Biochemical Engineering; Chemical Engineering Department; Federal University of Rio Grande do Norte; Natal 59078-970 Brazil
| | - Everaldo Silvino dos Santos
- Laboratory of Biochemical Engineering; Chemical Engineering Department; Federal University of Rio Grande do Norte; Natal 59078-970 Brazil
| | - Gorete Ribeiro de Macedo
- Laboratory of Biochemical Engineering; Chemical Engineering Department; Federal University of Rio Grande do Norte; Natal 59078-970 Brazil
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99976
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Basché T, Bottin A, Li C, Müllen K, Kim JH, Sohn BH, Prabhakaran P, Lee KS. Energy and charge transfer in nanoscale hybrid materials. Macromol Rapid Commun 2015; 36:1026-46. [PMID: 25761127 DOI: 10.1002/marc.201400738] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 02/10/2015] [Indexed: 12/12/2022]
Abstract
Hybrid materials composed of colloidal semiconductor quantum dots and π-conjugated organic molecules and polymers have attracted continuous interest in recent years, because they may find applications in bio-sensing, photodetection, and photovoltaics. Fundamental processes occurring in these nanohybrids are light absorption and emission as well as energy and/or charge transfer between the components. For future applications it is mandatory to understand, control, and optimize the wide parameter space with respect to chemical assembly and the desired photophysical properties. Accordingly, different approaches to tackle this issue are described here. Simple organic dye molecules (Dye)/quantum dot (QD) conjugates are studied with stationary and time-resolved spectroscopy to address the dynamics of energy and ultra-fast charge transfer. Micellar as well as lamellar nanostructures derived from diblock copolymers are employed to fine-tune the energy transfer efficiency of QD donor/dye acceptor couples. Finally, the transport of charges through organic components coupled to the quantum dot surface is discussed with an emphasis on functional devices.
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Affiliation(s)
- Thomas Basché
- Institut für Physikalische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55099, Mainz, Germany
| | - Anne Bottin
- Institut für Physikalische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55099, Mainz, Germany
| | - Chen Li
- Max Planck-Institut für Polymerforschung, Ackermannweg 10, 55128, Mainz, Germany
| | - Klaus Müllen
- Max Planck-Institut für Polymerforschung, Ackermannweg 10, 55128, Mainz, Germany
| | - Jeong-Hee Kim
- Department of Chemistry, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 151-747, South Korea
| | - Byeong-Hyeok Sohn
- Department of Chemistry, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 151-747, South Korea
| | - Prem Prabhakaran
- Department of Advanced Materials, Hannam University, Daejeon, 305-811, South Korea
| | - Kwang-Sup Lee
- Department of Advanced Materials, Hannam University, Daejeon, 305-811, South Korea
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99977
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Fast discharge process of layered cobalt oxides due to high Na⁺ diffusion. Sci Rep 2015; 5:9006. [PMID: 25758962 PMCID: PMC4355731 DOI: 10.1038/srep09006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 02/10/2015] [Indexed: 11/11/2022] Open
Abstract
Sodium ion secondary battery (SIB) is a low-cost and ubiquitous secondary battery for next-generation large-scale energy storage. The diffusion process of large Na+ (ionic radius is 1.12 Å), however, is considered to be slower than that of small Li+ (0.76 Å). This would be a serious disadvantage of SIB as compared with the Lithium ion secondary battery (LIB). By means of the electrochemical impedance spectroscopy (EIS), we determined the diffusion constant (D) of Na+ in thin films of O3- and P2-type NaCoO2 with layered structures. We found that the D values (~ 0.5–1.5 × 10−10 cm2/s) of Na+ are higher than those (< 1 × 10−11 cm2/s) of Li+ in layered LiCoO2. Especially, the D values of O3-NaCoO2 are even higher than those of P2-NaCoO2, probably because O3-NaCoO2 shows successive structural phase transitions from the O3, O’3, P’3, to P3 phases with Na+ deintercalation. We further found that the activation energy (ED ~ 0.4 eV) for the Na+ diffusion is significantly low in these layered cobalt oxides. We found a close relation between the relative capacity and the renormalized discharge rate ( = L2/DT, where L and T are the film thickness and discharge time, respectively).
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99978
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Complete magnesiothermic reduction reaction of vertically aligned mesoporous silica channels to form pure silicon nanoparticles. Sci Rep 2015; 5:9014. [PMID: 25757800 PMCID: PMC4355679 DOI: 10.1038/srep09014] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 02/06/2015] [Indexed: 11/25/2022] Open
Abstract
Owing to its simplicity and low temperature conditions, magnesiothermic reduction of silica is one of the most powerful methods for producing silicon nanostructures. However, incomplete reduction takes place in this process leaving unconverted silica under the silicon layer. This phenomenon limits the use of this method for the rational design of silicon structures. In this effort, a technique that enables complete magnesiothermic reduction of silica to form silicon has been developed. The procedure involves magnesium promoted reduction of vertically oriented mesoporous silica channels on reduced graphene oxides (rGO) sheets. The mesopores play a significant role in effectively enabling magnesium gas to interact with silica through a large number of reaction sites. Utilizing this approach, highly uniform, ca. 10 nm sized silicon nanoparticles are generated without contamination by unreacted silica. The new method for complete magnesiothermic reduction of mesoporous silica approach provides a foundation for the rational design of silicon structures.
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99979
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Gao D, Zhou H, Wang J, Miao S, Yang F, Wang G, Wang J, Bao X. Size-Dependent Electrocatalytic Reduction of CO2 over Pd Nanoparticles. J Am Chem Soc 2015; 137:4288-91. [DOI: 10.1021/jacs.5b00046] [Citation(s) in RCA: 793] [Impact Index Per Article: 88.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Dunfeng Gao
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Hu Zhou
- College
of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Jing Wang
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Shu Miao
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Fan Yang
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guoxiong Wang
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Jianguo Wang
- College
of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Xinhe Bao
- State
Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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99980
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Liu XJ, Cui CH, Li HH, Lei Y, Zhuang TT, Sun M, Arshad MN, Albar HA, Sobahi TR, Yu SH. Hollow ternary PtPdCu nanoparticles: a superior and durable cathodic electrocatalyst. Chem Sci 2015; 6:3038-3043. [PMID: 28706679 PMCID: PMC5490055 DOI: 10.1039/c4sc04037f] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 03/11/2015] [Indexed: 11/21/2022] Open
Abstract
Hollow PtPdCu nanoparticles with a Pt-enriched surface, formed by the dealloying action of acetic acid, exhibit superior durability and catalytic activity toward the ORR.
Hollow alloyed nanoparticles (NPs) represent one kind of promising fuel cell electrocatalyst. However, the formation of single-cavity hollow structures by a dealloying process is quite challenging owing to the random leaching/dissolution of transition metals, surface passivation and the limited diffusion distance of the noble metals. Here we present a facile method to prepare hollow PtPdCu NPs derived from monodisperse alloy NPs by an acetic acid-assisted dealloying process. Here, acetic acid not only acts as a chemical etching agent but also plays an important role in the removal of the residual surfactants for colloidal NPs. Our findings rectify the current knowledge that hollow alloyed NPs cannot be prepared by a dealloying strategy and provide further understanding of the dealloying process in a ternary system. Such unique hollow ternary PtPdCu NPs exhibit outstanding durability and improved catalytic activity toward the oxygen reduction reaction.
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Affiliation(s)
- Xiao-Jing Liu
- Division of Nanomaterials and Chemistry , Hefei National Laboratory for Physical Sciences at Microscale , Collaborative Innovation Center of Suzhou Nano Science and Technology , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui , 230026 , China . ; ; Tel: +86-551-63603040
| | - Chun-Hua Cui
- Division of Nanomaterials and Chemistry , Hefei National Laboratory for Physical Sciences at Microscale , Collaborative Innovation Center of Suzhou Nano Science and Technology , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui , 230026 , China . ; ; Tel: +86-551-63603040
| | - Hui-Hui Li
- Division of Nanomaterials and Chemistry , Hefei National Laboratory for Physical Sciences at Microscale , Collaborative Innovation Center of Suzhou Nano Science and Technology , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui , 230026 , China . ; ; Tel: +86-551-63603040
| | - Yong Lei
- Institute of Physics & IMN MacroNano , Ilmenau University of Technology , Prof. Schmidt-Straße 26 , 98693 Ilmenau , Germany
| | - Tao-Tao Zhuang
- Division of Nanomaterials and Chemistry , Hefei National Laboratory for Physical Sciences at Microscale , Collaborative Innovation Center of Suzhou Nano Science and Technology , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui , 230026 , China . ; ; Tel: +86-551-63603040
| | - Meng Sun
- Division of Nanomaterials and Chemistry , Hefei National Laboratory for Physical Sciences at Microscale , Collaborative Innovation Center of Suzhou Nano Science and Technology , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui , 230026 , China . ; ; Tel: +86-551-63603040
| | - Muhammad Nadeem Arshad
- Center of Excellence for Advanced Materials Research , King Abdulaziz University , Jeddah 21589 , Saudi Arabia.,Chemistry Department , Faculty of Science , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
| | - Hassan A Albar
- Chemistry Department , Faculty of Science , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
| | - Tariq R Sobahi
- Chemistry Department , Faculty of Science , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
| | - Shu-Hong Yu
- Division of Nanomaterials and Chemistry , Hefei National Laboratory for Physical Sciences at Microscale , Collaborative Innovation Center of Suzhou Nano Science and Technology , Department of Chemistry , University of Science and Technology of China , Hefei , Anhui , 230026 , China . ; ; Tel: +86-551-63603040
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99981
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Cooperative insertion of CO2 in diamine-appended metal-organic frameworks. Nature 2015; 519:303-8. [PMID: 25762144 DOI: 10.1038/nature14327] [Citation(s) in RCA: 670] [Impact Index Per Article: 74.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 02/06/2015] [Indexed: 01/28/2023]
Abstract
The process of carbon capture and sequestration has been proposed as a method of mitigating the build-up of greenhouse gases in the atmosphere. If implemented, the cost of electricity generated by a fossil fuel-burning power plant would rise substantially, owing to the expense of removing CO2 from the effluent stream. There is therefore an urgent need for more efficient gas separation technologies, such as those potentially offered by advanced solid adsorbents. Here we show that diamine-appended metal-organic frameworks can behave as 'phase-change' adsorbents, with unusual step-shaped CO2 adsorption isotherms that shift markedly with temperature. Results from spectroscopic, diffraction and computational studies show that the origin of the sharp adsorption step is an unprecedented cooperative process in which, above a metal-dependent threshold pressure, CO2 molecules insert into metal-amine bonds, inducing a reorganization of the amines into well-ordered chains of ammonium carbamate. As a consequence, large CO2 separation capacities can be achieved with small temperature swings, and regeneration energies appreciably lower than achievable with state-of-the-art aqueous amine solutions become feasible. The results provide a mechanistic framework for designing highly efficient adsorbents for removing CO2 from various gas mixtures, and yield insights into the conservation of Mg(2+) within the ribulose-1,5-bisphosphate carboxylase/oxygenase family of enzymes.
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99982
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Xu Y, Lin Z, Zhong X, Papandrea B, Huang Y, Duan X. Solvated Graphene Frameworks as High-Performance Anodes for Lithium-Ion Batteries. Angew Chem Int Ed Engl 2015; 54:5345-50. [DOI: 10.1002/anie.201500677] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Indexed: 01/22/2023]
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99983
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Tsukada C, Tsuji T, Matsuo K, Nomoto T, Kutluk G, Sawada M, Ogawa S, Yoshida T, Yagi S. Spectroscopic and morphological studies on interaction between gold nanoparticle and liposome constructed with phosphatidylcholine. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/1757-899x/76/1/012001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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99984
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Talwar D, Gonzalez-de-Castro A, Li HY, Xiao J. Regioselective Acceptorless Dehydrogenative Coupling of N-Heterocycles toward Functionalized Quinolines, Phenanthrolines, and Indoles. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500346] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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99985
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Xu Y, Lin Z, Zhong X, Papandrea B, Huang Y, Duan X. Solvated Graphene Frameworks as High-Performance Anodes for Lithium-Ion Batteries. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500677] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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99986
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Kim JH, Fu K, Choi J, Kil K, Kim J, Han X, Hu L, Paik U. Encapsulation of S/SWNT with PANI web for enhanced rate and cycle performance in lithium sulfur batteries. Sci Rep 2015; 5:8946. [PMID: 25752298 PMCID: PMC4354035 DOI: 10.1038/srep08946] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 02/10/2015] [Indexed: 11/13/2022] Open
Abstract
Lithium-sulfur batteries show great potential to compete with lithium-ion batteries due to the fact that sulfur can deliver a high theoretical capacity of 1672 mAh/g and a high theoretical energy density of 2500 Wh/kg. But it has several problems to be solved in order to achieve high sulfur utilization with high Coulombic efficiency and long cycle life of Li-S batteries. These problems are mainly caused by the dissoluble polysulfide species, which are a series of complex reduced sulfur products, associating with shuttle effect between electrodes as well as side reactions on lithium metal anode. To alleviate these challenges, we developed a sulfur-carbon nanotube (S/SWNT) composite coated with polyaniline (PANI) polymer as polysulfide block to achieve high sulfur utilization, high Coulombic efficiency, and long cycle life. The PANI coated S/SWNT composite showed a superior specific capacity of 1011 mAh/g over 100 cycles and a good rate retention, demonstrating the synergic contribution of porous carbon and conducting polymer protection to address challenges underlying sulfur cathode.
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Affiliation(s)
- Joo Hyun Kim
- Department of Energy Engineering, Hanyang University, Seoul 133-791, South Korea
| | - Kun Fu
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Junghyun Choi
- 1] Department of Energy Engineering, Hanyang University, Seoul 133-791, South Korea [2] Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Kichun Kil
- Department of Energy Engineering, Hanyang University, Seoul 133-791, South Korea
| | - Jeonghyun Kim
- Department of Materials Science and Engineering, Hanyang University, Seoul 133-791, South Korea
| | - Xiaogang Han
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Ungyu Paik
- 1] Department of Energy Engineering, Hanyang University, Seoul 133-791, South Korea [2] Department of Materials Science and Engineering, Hanyang University, Seoul 133-791, South Korea
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99987
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Chen Q, Huang W, Chen P, Peng C, Xie H, Zhao ZK, Sohail M, Bao M. Synthesis of Lignin-Derived Bisphenols Catalyzed by Lignosulfonic Acid in Water for Polycarbonate Synthesis. ChemCatChem 2015. [DOI: 10.1002/cctc.201500010] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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99988
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99989
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Luo J, Zhang X, Zhang J. Carbazolic Porous Organic Framework as an Efficient, Metal-Free Visible-Light Photocatalyst for Organic Synthesis. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00025] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jian Luo
- Department of Chemistry, University of Nebraska−Lincoln, Lincoln, Nebraska 68588, United States
| | - Xiang Zhang
- Department of Chemistry, University of Nebraska−Lincoln, Lincoln, Nebraska 68588, United States
| | - Jian Zhang
- Department of Chemistry, University of Nebraska−Lincoln, Lincoln, Nebraska 68588, United States
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99990
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Sato R, Choudhary H, Nishimura S, Ebitani K. Synthesis of Formic Acid from Monosaccharides Using Calcined Mg-Al Hydrotalcite as Reusable Catalyst in the Presence of Aqueous Hydrogen Peroxide. Org Process Res Dev 2015. [DOI: 10.1021/op5004083] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ryo Sato
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1, Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Hemant Choudhary
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1, Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Shun Nishimura
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1, Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Kohki Ebitani
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1, Asahidai, Nomi, Ishikawa 923-1292, Japan
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99991
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Deetuam C, Weise D, Samthong C, Praserthdam P, Baumann RR, Somwangthanaroj A. Electrical conductivity enhancement of spin-coated PEDOT:PSS thin film via dipping method in low concentration aqueous DMSO. J Appl Polym Sci 2015. [DOI: 10.1002/app.42108] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Chutimar Deetuam
- Department of Chemical Engineering, Faculty of Engineering; Chulalongkorn University; Bangkok 10330 Thailand
| | - Dana Weise
- Department of Digital Printing and Imaging Technology, Institute for Print and Media Technology; Chemnitz University of Technology; Chemnitz 09126 Germany
| | - Chavakorn Samthong
- Department of Chemical Engineering, Faculty of Engineering; Chulalongkorn University; Bangkok 10330 Thailand
| | - Piyasan Praserthdam
- Department of Chemical Engineering, Faculty of Engineering; Chulalongkorn University; Bangkok 10330 Thailand
| | - Reinhard R. Baumann
- Department of Digital Printing and Imaging Technology, Institute for Print and Media Technology; Chemnitz University of Technology; Chemnitz 09126 Germany
- Department Printed Functionalities; Fraunhofer Institute for Electronic Nano Systems (ENAS); Chemnitz Germany
| | - Anongnat Somwangthanaroj
- Department of Chemical Engineering, Faculty of Engineering; Chulalongkorn University; Bangkok 10330 Thailand
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99992
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Regioselective Acceptorless Dehydrogenative Coupling of N-Heterocycles toward Functionalized Quinolines, Phenanthrolines, and Indoles. Angew Chem Int Ed Engl 2015; 54:5223-7. [DOI: 10.1002/anie.201500346] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Indexed: 01/10/2023]
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99993
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Szymanski P, Mahmoud MA, O'Neil D, Garlyyev B, El-Sayed MA. Electronic and vibrational dynamics of hollow au nanocages embedded in cu2 o shells. Photochem Photobiol 2015; 91:599-606. [PMID: 25682692 DOI: 10.1111/php.12432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 02/07/2015] [Indexed: 11/30/2022]
Abstract
We have synthesized hollow Au nanocages embedded within thick porous shells of cuprous oxide (Cu2 O). The shell causes a significant redshift of the localized surface plasmon resonance of Au into the near-IR. Electron-phonon coupling in the Au nanocage is 3-6 times faster in the core-shell structure due to the higher thermal conductivity of Cu2 O compared to water. Coherent phonon oscillations within the Au lattice are characterized by a breathing mode of the entire structure for both bare and core-shell nanocages, an assignment made through the use of structural mechanics simulations. The experimental frequencies are obtained through simulations by selectively applying a force to the shell of the core-shell structure. We interpret this as rapid thermal expansion of the gold leading to a mechanical force that acts on the shell.
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Affiliation(s)
- Paul Szymanski
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, USA
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99994
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Sypaseuth FD, Matlachowski C, Weber M, Schwalbe M, Tzschucke CC. Electrocatalytic carbon dioxide reduction by using cationic pentamethylcyclopentadienyl-iridium complexes with unsymmetrically substituted bipyridine ligands. Chemistry 2015; 21:6564-71. [PMID: 25756194 DOI: 10.1002/chem.201404367] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 01/25/2015] [Indexed: 11/05/2022]
Abstract
Eight [Ir(bpy)Cp*Cl](+) -type complexes (bpy= bipyridine, Cp*=1,2,3,4,5-pentamethylcyclopentadienyl) containing differently substituted bipyridine ligands were synthesized and characterized. Cyclic voltammetry (CV) of the complexes in Ar-saturated acetonitrile solutions showed that the redox behavior of the complexes could be fine tuned by the electronic properties of the substituted bipyridine ligands. Further CV in CO2 -saturated MeCN/H2 O (9:1, v/v) solutions showed catalytic currents for CO2 reduction. In controlled potential electrolysis experiments (MeCN/MeOH (1:1, v/v), Eapp =-1.80 V vs Ag/AgCl), all of the complexes showed moderate activity in the electrocatalytic reduction of CO2 with good stability over at least 15 hours. This electrocatalytic process was selective toward formic acid, with only traces of dihydrogen or carbon monoxide and occasionally formaldehyde as byproducts. However, the turnover frequencies and current efficiencies were quite low. No direct correlation between the redox potentials of the complexes and their catalytic activity was observed.
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Affiliation(s)
- Fanni D Sypaseuth
- Institut für Chemie und Biochemie, Organische Chemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin (Germany)
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99995
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Gu C, Huang N, Xu F, Gao J, Jiang D. Cascade exciton-pumping engines with manipulated speed and efficiency in light-harvesting porous π-network films. Sci Rep 2015; 5:8867. [PMID: 25746459 PMCID: PMC5390074 DOI: 10.1038/srep08867] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 02/06/2015] [Indexed: 11/09/2022] Open
Abstract
Light-harvesting antennae are the machinery for exciton pumping in natural photosynthesis, whereas cascade energy transfer through chlorophyll is key to long-distance, efficient energy transduction. Numerous artificial antennae have been developed. However, they are limited in their cascade energy-transfer abilities because of a lack of control over complex chromophore aggregation processes, which has impeded their advancement. Here we report a viable approach for addressing this issue by using a light-harvesting porous polymer film in which a three-dimensional π-network serves as the antenna and micropores segregate multiple dyes to prevent aggregation. Cascade energy-transfer engines are integrated into the films; the rate and efficiency of the energy-funneling engines are precisely manipulated by tailoring the dye components and contents. The nanofilms allow accurate and versatile luminescence engineering, resulting in the production of thirty emission hues, including blue, green, red and white. This advance may open new pathways for realising photosynthesis and photoenergy conversion.
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Affiliation(s)
- Cheng Gu
- Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Ning Huang
- Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Fei Xu
- Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Jia Gao
- Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Donglin Jiang
- Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
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99996
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Dogan C, Stöwe K, Maier WF. Optical high-throughput screening for activity and electrochemical stability of oxygen reducing electrode catalysts for fuel cell applications. ACS COMBINATORIAL SCIENCE 2015; 17:164-75. [PMID: 25555048 DOI: 10.1021/co500128m] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A fluorescence-based electro-optical high-throughput method and setup for testing the oxygen reduction reaction (ORR) activity and electrochemical stability of 60 materials in parallel is described. We present thus a quantitative method for activity measurements for ORR-catalysts by optical fluorescence data acquisition. The fluorescence behavior of fluorescein, phloxine B, and umbelliferone as indicators is presented. The effect of oxygen concentration, saturation, and supply on electrochemical response is presented. Corrections for internal resistance differences and intensity differences are described. The final method allowed position independent determination of activities on the working-electrode library, containing up to 60 different electrocatalysts. A total of 378 selected mixed oxides have been studied. Cu/Ni/Mn and Co/Ni/Mn oxides proved electrochemically most active and comparable to a Pt-containing reference catalyst.
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Affiliation(s)
- C. Dogan
- Lehrstuhl für Technische
Chemie, Universität des Saarlandes, Gebäude C4 2, 66123 Saarbrücken, Germany
| | - K. Stöwe
- Lehrstuhl für Technische
Chemie, Universität des Saarlandes, Gebäude C4 2, 66123 Saarbrücken, Germany
| | - W. F. Maier
- Lehrstuhl für Technische
Chemie, Universität des Saarlandes, Gebäude C4 2, 66123 Saarbrücken, Germany
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99997
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Kroflič A, Grilc M, Grgić I. Does toxicity of aromatic pollutants increase under remote atmospheric conditions? Sci Rep 2015; 5:8859. [PMID: 25748923 PMCID: PMC4352892 DOI: 10.1038/srep08859] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 02/05/2015] [Indexed: 01/02/2023] Open
Abstract
Aromatic compounds contribute significantly to the budget of atmospheric pollutants and represent considerable hazard to living organisms. However, they are only rarely included into atmospheric models which deviate substantially from field measurements. A powerful experimental-simulation tool for the assessment of the impact of low- and semi-volatile aromatic pollutants on the environment due to their atmospheric aqueous phase aging has been developed and introduced for the first time. The case study herein reveals that remote biotopes might be the most damaged by wet urban guaiacol-containing biomass burning aerosols. It is shown that only after the primary pollutant guaiacol has been consumed, its probably most toxic nitroaromatic product is largely formed. Revising the recent understanding of atmospheric aqueous phase chemistry, which is mostly concerned with the radical nitration mechanisms, the observed phenomenon is mainly attributed to the electrophilic nitrogen-containing reactive species. Here, their intriguing role is closely inspected and discussed from the ecological perspective.
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Affiliation(s)
- Ana Kroflič
- Analytical Chemistry Laboratory, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
| | - Miha Grilc
- Laboratory of Catalysis and Chemical Reaction Engineering, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
| | - Irena Grgić
- Analytical Chemistry Laboratory, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
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99998
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Kamran M, Friebe VM, Delgado JD, Aartsma TJ, Frese RN, Jones MR. Demonstration of asymmetric electron conduction in pseudosymmetrical photosynthetic reaction centre proteins in an electrical circuit. Nat Commun 2015; 6:6530. [PMID: 25751412 PMCID: PMC4366537 DOI: 10.1038/ncomms7530] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Accepted: 02/04/2015] [Indexed: 12/22/2022] Open
Abstract
Photosynthetic reaction centres show promise for biomolecular electronics as nanoscale solar-powered batteries and molecular diodes that are amenable to atomic-level re-engineering. In this work the mechanism of electron conduction across the highly tractable Rhodobacter sphaeroides reaction centre is characterized by conductive atomic force microscopy. We find, using engineered proteins of known structure, that only one of the two cofactor wires connecting the positive and negative termini of this reaction centre is capable of conducting unidirectional current under a suitably oriented bias, irrespective of the magnitude of the bias or the applied force at the tunnelling junction. This behaviour, strong functional asymmetry in a largely symmetrical protein–cofactor matrix, recapitulates the strong functional asymmetry characteristic of natural photochemical charge separation, but it is surprising given that the stimulus for electron flow is simply an externally applied bias. Reasons for the electrical resistance displayed by the so-called B-wire of cofactors are explored. Photosynthetic reaction centres have been proposed for applications in bioelectronics. Here, the authors examine electron transport through the reaction centre from R. sphaeroides using conductive AFM, observing asymmetric conductance along only one cofactor wire under an applied bias.
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Affiliation(s)
- Muhammad Kamran
- Leiden Institute of Physics, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
| | - Vincent M Friebe
- Department of Physics and Astronomy, LaserLaB Amsterdam, VU University Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
| | - Juan D Delgado
- Department of Physics and Astronomy, LaserLaB Amsterdam, VU University Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
| | - Thijs J Aartsma
- Leiden Institute of Physics, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
| | - Raoul N Frese
- Department of Physics and Astronomy, LaserLaB Amsterdam, VU University Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
| | - Michael R Jones
- School of Biochemistry, University of Bristol, Medical Sciences Building, University Walk, Bristol BS8 1TD, UK
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99999
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Studt F, Behrens M, Kunkes EL, Thomas N, Zander S, Tarasov A, Schumann J, Frei E, Varley JB, Abild‐Pedersen F, Nørskov JK, Schlögl R. The Mechanism of CO and CO
2
Hydrogenation to Methanol over Cu‐Based Catalysts. ChemCatChem 2015. [DOI: 10.1002/cctc.201500123] [Citation(s) in RCA: 346] [Impact Index Per Article: 38.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Felix Studt
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 (USA)
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305 (USA)
| | - Malte Behrens
- Department of Inorganic Chemistry, Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Faradayweg 4–6, 14195 Berlin (Germany)
- Faculty of Chemistry and CENIDE, Universität Duisburg‐Essen, Universitätsstrasse 5–7, 45141 Essen (Germany)
| | - Edward L. Kunkes
- Department of Inorganic Chemistry, Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Faradayweg 4–6, 14195 Berlin (Germany)
| | - Nygil Thomas
- Department of Inorganic Chemistry, Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Faradayweg 4–6, 14195 Berlin (Germany)
- Present address: Postgraduate and Research Department of Chemistry, Nirmalagiri College, Kerala, India
| | - Stefan Zander
- Department of Inorganic Chemistry, Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Faradayweg 4–6, 14195 Berlin (Germany)
| | - Andrey Tarasov
- Department of Inorganic Chemistry, Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Faradayweg 4–6, 14195 Berlin (Germany)
| | - Julia Schumann
- Department of Inorganic Chemistry, Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Faradayweg 4–6, 14195 Berlin (Germany)
| | - Elias Frei
- Department of Inorganic Chemistry, Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Faradayweg 4–6, 14195 Berlin (Germany)
| | - Joel B. Varley
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305 (USA)
- Lawrence Livermore National Laboratory, Livermore, CA 94550 (USA)
| | - Frank Abild‐Pedersen
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 (USA)
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305 (USA)
| | - Jens K. Nørskov
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 (USA)
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305 (USA)
| | - Robert Schlögl
- Department of Inorganic Chemistry, Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Faradayweg 4–6, 14195 Berlin (Germany)
- Heterogeneous Reactions Department, Max‐Planck‐Institut for Chemical Energy Conversion, Stiftstrasse 34–36, 45470 Mühlheim an der Ruhr (Germany)
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100000
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Ju H, Kim M, Kim J. Enhanced thermoelectric performance by alcoholic solvents effects in highly conductive benzenesulfonate-doped poly(3,4-ethylenedioxythiophene)/graphene composites. J Appl Polym Sci 2015. [DOI: 10.1002/app.42107] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hyun Ju
- School of Chemical Engineering & Materials Science; Chung-Ang University; Seoul 156-756 Republic of Korea
| | - Myeongjin Kim
- School of Chemical Engineering & Materials Science; Chung-Ang University; Seoul 156-756 Republic of Korea
| | - Jooheon Kim
- School of Chemical Engineering & Materials Science; Chung-Ang University; Seoul 156-756 Republic of Korea
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