51
|
Garg N, Menaka, Ramanujachary KV, Lofland SE, Ganguli AK. Nanostructured dimagnesium manganese oxide (Spinel): Control of size, shape and their magnetic and electro catalytic properties. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2012.08.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
52
|
Plowman BJ, Najdovski I, Pearson A, O'Mullane AP. Decoration of active sites to create bimetallic surfaces and its implication for electrochemical processes. Faraday Discuss 2013; 164:199-218. [DOI: 10.1039/c3fd00015j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
53
|
Muthuswamy N, de la Fuente JLG, Ochal P, Giri R, Raaen S, Sunde S, Rønning M, Chen D. Towards a highly-efficient fuel-cell catalyst: optimization of Pt particle size, supports and surface-oxygen group concentration. Phys Chem Chem Phys 2013; 15:3803-13. [DOI: 10.1039/c3cp43659d] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
54
|
Xu ZN, Sun J, Lin CS, Jiang XM, Chen QS, Peng SY, Wang MS, Guo GC. High-Performance and Long-Lived Pd Nanocatalyst Directed by Shape Effect for CO Oxidative Coupling to Dimethyl Oxalate. ACS Catal 2012. [DOI: 10.1021/cs300759h] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhong-Ning Xu
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian
350002, P. R. China
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Jing Sun
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian
350002, P. R. China
| | - Chen-Sheng Lin
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian
350002, P. R. China
| | - Xiao-Ming Jiang
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian
350002, P. R. China
| | - Qing-Song Chen
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian
350002, P. R. China
| | - Si-Yan Peng
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian
350002, P. R. China
| | - Ming-Sheng Wang
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian
350002, P. R. China
| | - Guo-Cong Guo
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian
350002, P. R. China
| |
Collapse
|
55
|
Zhou J, Tang D, Hou L, Cui Y, Chen H, Chen G. Nanoplatinum-enclosed gold nanocores as catalytically promoted nanolabels for sensitive electrochemical immunoassay. Anal Chim Acta 2012; 751:52-8. [DOI: 10.1016/j.aca.2012.09.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 08/31/2012] [Accepted: 09/04/2012] [Indexed: 11/16/2022]
|
56
|
Cao M, Wu D, Gao S, Cao R. Platinum Nanoparticles Stabilized by Cucurbit[6]uril with Enhanced Catalytic Activity and Excellent Poisoning Tolerance for Methanol Electrooxidation. Chemistry 2012; 18:12978-85. [DOI: 10.1002/chem.201201817] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Indexed: 11/09/2022]
|
57
|
Petkov V, Wanjala BN, Loukrakpam R, Luo J, Yang L, Zhong CJ, Shastri S. Pt-Au alloying at the nanoscale. NANO LETTERS 2012; 12:4289-4299. [PMID: 22784003 DOI: 10.1021/nl302329n] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The formation of nanosized alloys between a pair of elements, which are largely immiscible in bulk, is examined in the archetypical case of Pt and Au. Element specific resonant high-energy X-ray diffraction experiments coupled to atomic pair distribution functions analysis and computer simulations prove the formation of Pt-Au alloys in particles less than 10 nm in size. In the alloys, Au-Au and Pt-Pt bond lengths differing in 0.1 Å are present leading to extra structural distortions as compared to pure Pt and Au particles. The alloys are found to be stable over a wide range of Pt-Au compositions and temperatures contrary to what current theory predicts. The alloy-type structure of Pt-Au nanoparticles comes along with a high catalytic activity for electrooxidation of methanol making an excellent example of the synergistic effect of alloying at the nanoscale on functional properties.
Collapse
Affiliation(s)
- Valeri Petkov
- Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48859, USA.
| | | | | | | | | | | | | |
Collapse
|
58
|
Zhang L, Li N, Gao F, Hou L, Xu Z. Insulin Amyloid Fibrils: An Excellent Platform for Controlled Synthesis of Ultrathin Superlong Platinum Nanowires with High Electrocatalytic Activity. J Am Chem Soc 2012; 134:11326-9. [DOI: 10.1021/ja302959e] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Longgai Zhang
- Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, P. R. China
| | - Na Li
- Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, P. R. China
| | - Faming Gao
- Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, P. R. China
| | - Li Hou
- Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, P. R. China
| | - Ziming Xu
- Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, P. R. China
| |
Collapse
|
59
|
Sherrell PC, Zhang W, Zhao J, Wallace GG, Chen J, Minett AI. Microwave decoration of Pt nanoparticles on entangled 3D carbon nanotube architectures as PEM fuel cell cathode. CHEMSUSCHEM 2012; 5:1233-1240. [PMID: 22696244 DOI: 10.1002/cssc.201100667] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 12/13/2011] [Indexed: 06/01/2023]
Abstract
Proton-exchange membrane fuel cells (PEMFCs) are expected to provide a complementary power supply to fossil fuels in the near future. The current reliance of fuel cells on platinum catalysts is undesirable. However, even the best-performing non-noble metal catalysts are not as efficient. To drive commercial viability of fuel cells forward in the short term, increased utilization of Pt catalysts is paramount. We have demonstrated improved power and energy densities in a single PEMFC using a designed cathode with a Pt loading of 0.1 mg cm(-2) on a mesoporous conductive entangled carbon nanotube (CNT)-based architecture. This electrode allows for rapid transfer of both fuel and waste to and from the electrode, respectively. Pt particles are bound tightly, directly to CNT sidewalls by a microwave-reduction technique, which provided increased charge transport at this interface. The Pt entangled CNT cathode, in combination with an E-TEK 0.2 mg cm(-2) anode, has a maximum power and energy density of 940 mW cm(-2) and 2700 mA cm(-2), respectively, and a power and energy density of 4.01 W mg(Pt)(-1) and 6.35 A mg(Pt)(-1) at 0.65 V. These power densities correspond to a specific mass activity of 0.81 g Pt per kW for the combined mass of both anode and cathode electrodes, approaching the current US Department of Energy efficiency target.
Collapse
Affiliation(s)
- Peter C Sherrell
- Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW, 2522, Australia
| | | | | | | | | | | |
Collapse
|
60
|
|
61
|
Xu J, Liu X, Chen Y, Zhou Y, Lu T, Tang Y. Platinum–Cobalt alloy networks for methanol oxidation electrocatalysis. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm35649j] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
62
|
Long NV, Thi CM, Nogami M, Ohtaki M. Novel issues of morphology, size, and structure of Pt nanoparticles in chemical engineering: surface attachment, aggregation or agglomeration, assembly, and structural changes. NEW J CHEM 2012. [DOI: 10.1039/c2nj40027h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
63
|
Liu CW, Wei YC, Liu CC, Wang KW. Pt–Au core/shell nanorods: preparation and applications as electrocatalysts for fuel cells. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16407h] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
64
|
Qin YL, Zhang XB, Wang J, Wang LM. Rapid and shape-controlled synthesis of “clean” star-like and concave Pd nanocrystallites and their high performance toward methanol oxidation. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32682e] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
65
|
Qiu H, Huang X. Retracted article: Nanoporous PtFe surface alloy architecture for enhanced methanol electro-oxidation. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16106k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
66
|
Zhu M, Chen P, Liu M. Highly efficient visible-light-driven plasmonic photocatalysts based on graphene oxide-hybridized one-dimensional Ag/AgCl heteroarchitectures. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34938h] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
67
|
Hsieh TL, Chen HW, Kung CW, Wang CC, Vittal R, Ho KC. A highly efficient dye-sensitized solar cell with a platinum nanoflowers counter electrode. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm14623a] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
68
|
Sathe BR. Capping induced morphology evolution of Rh nanostructures and their electrocatalytic studies. RSC Adv 2012. [DOI: 10.1039/c2ra00775d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
69
|
Lee YW, Oh SE, Park KW. Highly active Pt–Pd alloy catalyst for oxygen reduction reaction in buffer solution. Electrochem commun 2011. [DOI: 10.1016/j.elecom.2011.07.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
|
70
|
Kloke A, von Stetten F, Zengerle R, Kerzenmacher S. Strategies for the fabrication of porous platinum electrodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2011; 23:4976-5008. [PMID: 22180890 DOI: 10.1002/adma.201102182] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Porous platinum is of high technological importance due to its various applications in fuel cells, sensors, stimulation electrodes, mechanical actuators and catalysis in general. Based on a discussion of the general principles behind the reduction of platinum salts and corresponding deposition processes this article discusses techniques available for platinum electrode fabrication. The numerous, different strategies available to fabricate platinum electrodes are reviewed and discussed in the context of their tuning parameters, strengths and weaknesses. These strategies comprise bottom-up approaches as well as top-down approaches. In bottom-up approaches nanoparticles are synthesized in a fi rst step by chemical, photochemical or sonochemical means followed by an electrode formation step by e.g. thin fi lm technology or network formation to create a contiguous and conducting solid electrode structure. In top-down approaches fabrication starts with an already conductive electrode substrate. Corresponding strategies enable the fabrication of substrate-based electrodes by e.g. electrodeposition or the fabrication of self-supporting electrodes by dealloying. As a further top-down strategy, this review describes methods to decorate porous metals other than platinum with a surface layer of platinum. This way, fabrication methods not performable with platinum can be applied to the fabrication of platinum electrodes with the special benefit of low platinum consumption.
Collapse
Affiliation(s)
- Arne Kloke
- Department of Microsystems Engineering-IMTEK, University of Freiburg, Georges-Koehler-Allee 106, 79110 Freiburg, Germany
| | | | | | | |
Collapse
|
71
|
Morphology-dependent activity of Pt nanocatalysts for ethanol oxidation in acidic media: Nanowires versus nanoparticles. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.08.055] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
72
|
|
73
|
Sharma DK, Ott A, O’Mullane AP, Bhargava SK. The facile formation of silver dendritic structures in the absence of surfactants and their electrochemical and SERS properties. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.07.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
74
|
Long NV, Ohtaki M, Nogami M, Hien TD. Effects of heat treatment and poly(vinylpyrrolidone) (PVP) polymer on electrocatalytic activity of polyhedral Pt nanoparticles towards their methanol oxidation. Colloid Polym Sci 2011. [DOI: 10.1007/s00396-011-2460-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
75
|
Koenigsmann C, Santulli AC, Gong K, Vukmirovic MB, Zhou WP, Sutter E, Wong SS, Adzic RR. Enhanced Electrocatalytic Performance of Processed, Ultrathin, Supported Pd–Pt Core–Shell Nanowire Catalysts for the Oxygen Reduction Reaction. J Am Chem Soc 2011; 133:9783-95. [DOI: 10.1021/ja111130t] [Citation(s) in RCA: 407] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Christopher Koenigsmann
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
| | - Alexander C. Santulli
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
| | - Kuanping Gong
- Chemistry Department, Brookhaven National Laboratory, Building 555, Upton, New York 11973, United States
| | - Miomir B. Vukmirovic
- Chemistry Department, Brookhaven National Laboratory, Building 555, Upton, New York 11973, United States
| | - Wei-ping Zhou
- Chemistry Department, Brookhaven National Laboratory, Building 555, Upton, New York 11973, United States
| | - Eli Sutter
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Building 735, Upton, New York 11973, United States
| | - Stanislaus S. Wong
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
- Condensed Matter Physics and Materials Sciences Department, Brookhaven National Laboratory, Building 480, Upton, New York 11973, United States
| | - Radoslav R. Adzic
- Chemistry Department, Brookhaven National Laboratory, Building 555, Upton, New York 11973, United States
| |
Collapse
|
76
|
Kim J, Lee SW, Carlton C, Shao-Horn Y. Pt-Covered Multiwall Carbon Nanotubes for Oxygen Reduction in Fuel Cell Applications. J Phys Chem Lett 2011; 2:1332-1336. [PMID: 26295431 DOI: 10.1021/jz200531z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Recently one-dimensonal (1-D) Pt nanostructures have shown greatly enhanced intrinsic oxygen reduction reaction (ORR) activity (ORR kinetic current normalized to Pt surface area) and/or improved durability relative to conventional supported Pt catalysts. In this study, we report a simple synthetic route to create Pt-covered multiwall carbon nanotubes (Pt NPs/MWNTs) as promising 1-D Pt nanostructured catalysts for ORR in proton exchange membrane fuel cells (PEMFCs). The average ORR intrinsic activity of Pt NPs/MWNTs is ∼0.95 mA/cm(2) Pt at 0.9 ViR-corrected versus reversible hydrogen electrode (RHE), ∼3-fold higher than a commercial catalyst -46 wt % Pt/C (Tanaka Kikinzoku Kogyo) in 0.1 M HClO4 at room temperature. More significantly, the mass activity of Pt NPs/MWNTs measured (∼0.48 A/mgPt at 0.9 ViR-corrected vs RHE) is higher than other 1-D nanostructured catalysts and TKK catalysts. The enhanced intrinsic activity of 1-D Pt NPs/MWNTs could be attributed to the weak chemical adsorption energy of OHads-species on the surface Pt NPs covering MWNTs.
Collapse
Affiliation(s)
- Junhyung Kim
- Electrochemical Energy Laboratory and Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Seung Woo Lee
- Electrochemical Energy Laboratory and Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Christopher Carlton
- Electrochemical Energy Laboratory and Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Yang Shao-Horn
- Electrochemical Energy Laboratory and Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
77
|
Chen Y, Hassel AW, Erbe A. Enhancement of the Electrocatalytic Activity of Gold Nanoparticles Towards Methanol Oxidation. Electrocatalysis (N Y) 2011. [DOI: 10.1007/s12678-011-0042-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
78
|
Synthesis and characterization of polyhedral Pt nanoparticles: their catalytic property, surface attachment, self-aggregation and assembly. J Colloid Interface Sci 2011; 359:339-50. [PMID: 21524421 DOI: 10.1016/j.jcis.2011.03.029] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 01/20/2011] [Accepted: 03/09/2011] [Indexed: 11/20/2022]
Abstract
In this paper, we presented the preparation procedure of Pt nanoparticles with the well-controlled polyhedral morphology and size by a modified polyol method using AgNO(3) in accordance with the reduction of H(2)PtCl(6) in EG at high temperature around 160°C. The methods of UV-vis spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), and high resolution (HR) TEM measurements were used to characterize their surface morphology, size, and crystal structure. We have observed that the polyhedral Pt nanoparticles of sharp edges and corners were produced in the preferential homogenous growth as well as the formation of porous and large Pt particles by self-aggregation and assembly originating from as-prepared polyhedral Pt nanoparticles. It is most impressive to find that the arrangement of Pt nanoparticles was observed in their surface attachments, self-aggregation, random and directed surface self-assembly by the bottom-up approach. Their high electrocatalytic activity for methanol oxidation was predicted. The findings and results showed that the polyhedral Pt nanoparticle-based catalysts exhibited the high electrocatalytic activity for their potential applications in developing the efficient Pt-based catalysts for direct methanol fuel cells.
Collapse
|
79
|
Muench F, Kaserer S, Kunz U, Svoboda I, Brötz J, Lauterbach S, Kleebe HJ, Roth C, Ensinger W. Electroless synthesis of platinum and platinum–ruthenium nanotubes and their application in methanol oxidation. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm03522j] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
80
|
Plowman BJ, Bhargava SK, O'Mullane AP. Electrochemical fabrication of metallic nanostructured electrodes for electroanalytical applications. Analyst 2011; 136:5107-19. [DOI: 10.1039/c1an15657h] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
81
|
|
82
|
|
83
|
Huang R, Wen YH, Zhu ZZ, Sun SG. Thermal stability of platinum nanowires: a comparison study between single-crystalline and twinned structures. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm13217b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
84
|
Lee YW, Han SB, Kim DY, Park KW. Monodispersed platinum nanocubes for enhanced electrocatalytic properties in alcohol electrooxidation. Chem Commun (Camb) 2011; 47:6296-8. [DOI: 10.1039/c1cc10798d] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
85
|
Gong X, Yang Y, Zhang L, Zou C, Cai P, Chen G, Huang S. Controlled synthesis of Pt nanoparticles via seeding growth and their shape-dependent catalytic activity. J Colloid Interface Sci 2010; 352:379-85. [DOI: 10.1016/j.jcis.2010.08.069] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Revised: 08/25/2010] [Accepted: 08/26/2010] [Indexed: 11/29/2022]
|
86
|
Koenigsmann C, Zhou WP, Adzic RR, Sutter E, Wong SS. Size-dependent enhancement of electrocatalytic performance in relatively defect-free, processed ultrathin platinum nanowires. NANO LETTERS 2010; 10:2806-2811. [PMID: 20608712 DOI: 10.1021/nl100718k] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We report on the synthesis, characterization, and electrocatalytic performance of ultrathin Pt nanowires with a diameter of less than 2 nm. An acid-wash protocol was employed in order to yield highly exfoliated, crystalline nanowires with a diameter of 1.3 +/- 0.4 nm. The electrocatalytic activity of these nanowires toward the oxygen reduction reaction was studied in relation to the activity of both supported and unsupported Pt nanoparticles as well as with previously synthesized Pt nanotubes. Our ultrathin, acid-treated, unsupported nanowires displayed an electrochemical surface area activity of 1.45 mA/cm(2), which was nearly 4 times greater than that of analogous, unsupported platinum nanotubes and 7 times greater than that of commercial supported platinum nanoparticles.
Collapse
Affiliation(s)
- Christopher Koenigsmann
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, USA
| | | | | | | | | |
Collapse
|
87
|
Kawasaki H, Yao T, Suganuma T, Okumura K, Iwaki Y, Yonezawa T, Kikuchi T, Arakawa R. Platinum Nanoflowers on Scratched Silicon by Galvanic Displacement for an Effective SALDI Substrate. Chemistry 2010; 16:10832-43. [DOI: 10.1002/chem.201001038] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
88
|
Sau TK, Rogach AL. Nonspherical noble metal nanoparticles: colloid-chemical synthesis and morphology control. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:1781-1804. [PMID: 20512953 DOI: 10.1002/adma.200901271] [Citation(s) in RCA: 481] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Metal nanoparticles have been the subject of widespread research over the past two decades. In recent years, noble metals have been the focus of numerous studies involving synthesis, characterization, and applications. Synthesis of an impressive range of noble metal nanoparticles with varied morphologies has been reported. Researchers have made a great progress in learning how to engineer materials on a nanometer length scale that has led to the understanding of the fundamental size- and shape-dependent properties of matter and to devising of new applications. In this article, we review the recent progress in the colloid-chemical synthesis of nonspherical nanoparticles of a few important noble metals (mainly Ag, Au, Pd, and Pt), highlighting the factors that influence the particle morphology and discussing the mechanisms behind the nonspherical shape evolution. The article attempts to present a thorough discussion of the basic principles as well as state-of-the-art morphology control in noble metal nanoparticles.
Collapse
Affiliation(s)
- Tapan K Sau
- International Institute of Information Technology, Hyderabad 500 032, India
| | | |
Collapse
|
89
|
Lim SI, Ojea-Jiménez I, Varon M, Casals E, Arbiol J, Puntes V. Synthesis of platinum cubes, polypods, cuboctahedrons, and raspberries assisted by cobalt nanocrystals. NANO LETTERS 2010; 10:964-73. [PMID: 20143792 DOI: 10.1021/nl100032c] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The introduction of metallic traces into the synthesis of platinum nanocrystals (Pt NCs) has been investigated as a surfactant-independent means of controlling shape. Various nanocrystal morphologies have been produced without modification of the reaction conditions, composition, and concentration other than the presence of cobalt traces (<5%). In the presence of metallic cobalt (a strong reducer for Pt cations) cubic Pt NCs are obtained, while cobalt ions or gold NCs have no effect on the synthesis, and as a result, polypods are obtained. Intermediate shapes such as cemented cubes or cuboctahedron NCs are also obtained under similar conditions. Thus, various NC shapes can be obtained with subtle changes, which illustrates the high susceptibility and mutability of the NC shape to modification of the reaction kinetics during the early reduction process. Our studies help progress toward a general mechanism for nanocrystal shape control.
Collapse
|
90
|
Liu FK, Chang YC. Using reversed-phase liquid chromatography to monitor the sizes of Au/Pt core/shell nanoparticles. J Chromatogr A 2010; 1217:1647-53. [DOI: 10.1016/j.chroma.2010.01.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Revised: 01/05/2010] [Accepted: 01/11/2010] [Indexed: 11/29/2022]
|
91
|
Chen CL, Rosi N. Peptide-Based Methods for the Preparation of Nanostructured Inorganic Materials. Angew Chem Int Ed Engl 2010; 49:1924-42. [DOI: 10.1002/anie.200903572] [Citation(s) in RCA: 389] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
92
|
Chen CL, Rosi N. Peptidbasierte Verfahren zur Herstellung nanostrukturierter anorganischer Materialien. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200903572] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
93
|
Chen A, Holt-Hindle P. Platinum-Based Nanostructured Materials: Synthesis, Properties, and Applications. Chem Rev 2010; 110:3767-804. [DOI: 10.1021/cr9003902] [Citation(s) in RCA: 1154] [Impact Index Per Article: 82.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aicheng Chen
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| | - Peter Holt-Hindle
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| |
Collapse
|
94
|
Nogami M, Koike R, Jalem R, Kawamura G, Yang Y, Sasaki Y. Synthesis of Porous Single-Crystalline Platinum Nanocubes Composed of Nanoparticles. J Phys Chem Lett 2010; 1:568-571. [PMID: 26906231 DOI: 10.1021/jz900342q] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Single-crystalline platinum nanocubes with porous morphology were synthesized for the first time by using ethylene glycol, HCl, and polyvinylpyrrolidone as the reducing agents of H2PtCl6. The morphology and size distribution of the Pt particles formed were studied with a high-resolution transmission electron microscope and selected-area electron diffraction pattern. By controlling the material concentrations and reaction temperature and period, Pt single crystals about 5 nm in size were formed in the first stage of the reduction process that had {100} facets, which were stacked one on top of the other, forming porous nanocubes 20-80 nm in length. The synthesized Pt nanocubes exhibited enhanced catalytic activity for methanol oxidation.
Collapse
Affiliation(s)
- Masayuki Nogami
- Nagoya Institute of Technology, Showa, Nagoya 466-8555 Japan
| | - Ryosuke Koike
- Nagoya Institute of Technology, Showa, Nagoya 466-8555 Japan
| | - Randy Jalem
- Nagoya Institute of Technology, Showa, Nagoya 466-8555 Japan
| | - Go Kawamura
- Nagoya Institute of Technology, Showa, Nagoya 466-8555 Japan
| | - Yong Yang
- Nagoya Institute of Technology, Showa, Nagoya 466-8555 Japan
| | | |
Collapse
|
95
|
Bönnemann H, Khelashvili G. Efficient fuel cell catalysts emerging from organometallic chemistry. Appl Organomet Chem 2010. [DOI: 10.1002/aoc.1613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
96
|
Tiano AL, Koenigsmann C, Santulli AC, Wong SS. Solution-based synthetic strategies for one-dimensional metal-containing nanostructures. Chem Commun (Camb) 2010; 46:8093-130. [DOI: 10.1039/c0cc01735c] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
97
|
Cramer CJ, Truhlar DG. Density functional theory for transition metals and transition metal chemistry. Phys Chem Chem Phys 2009; 11:10757-816. [PMID: 19924312 DOI: 10.1039/b907148b] [Citation(s) in RCA: 1079] [Impact Index Per Article: 71.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We introduce density functional theory and review recent progress in its application to transition metal chemistry. Topics covered include local, meta, hybrid, hybrid meta, and range-separated functionals, band theory, software, validation tests, and applications to spin states, magnetic exchange coupling, spectra, structure, reactivity, and catalysis, including molecules, clusters, nanoparticles, surfaces, and solids.
Collapse
Affiliation(s)
- Christopher J Cramer
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455-0431, USA.
| | | |
Collapse
|
98
|
|
99
|
Schmidt E, Vargas A, Mallat T, Baiker A. Shape-Selective Enantioselective Hydrogenation on Pt Nanoparticles. J Am Chem Soc 2009; 131:12358-67. [DOI: 10.1021/ja9043328] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Erik Schmidt
- Department of Chemistry and Applied Biosciences, ETH Zürich, Hönggerberg, HCI, CH-8093, Zürich, Switzerland
| | - Angelo Vargas
- Department of Chemistry and Applied Biosciences, ETH Zürich, Hönggerberg, HCI, CH-8093, Zürich, Switzerland
| | - Tamas Mallat
- Department of Chemistry and Applied Biosciences, ETH Zürich, Hönggerberg, HCI, CH-8093, Zürich, Switzerland
| | - Alfons Baiker
- Department of Chemistry and Applied Biosciences, ETH Zürich, Hönggerberg, HCI, CH-8093, Zürich, Switzerland
| |
Collapse
|
100
|
Plowman B, Ippolito SJ, Bansal V, Sabri YM, O'Mullane AP, Bhargava SK. Gold nanospikes formed through a simple electrochemical route with high electrocatalytic and surface enhanced Raman scattering activity. Chem Commun (Camb) 2009:5039-41. [PMID: 19668842 DOI: 10.1039/b910830k] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrate a simple electrochemical route to produce uniformly sized gold nanospikes without the need for a capping agent or prior modification of the electrode surface, which are predominantly oriented in the {111} crystal plane and exhibit promising electrocatalytic and SERS properties.
Collapse
Affiliation(s)
- Blake Plowman
- School of Applied Sciences, RMIT University, GPO Box 2476V, Melbourne, Australia
| | | | | | | | | | | |
Collapse
|