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Shi Y, Zhang L, Zhou H, Liu R, Nie S, Ye G, Wu F, Niu W, Han JL, Wang AJ. Te-induced fabrication of Pt 3PdTe 0.2 alloy nanocages by the self-diffusion of Pd atoms with unique MOR electrocatalytic performance. NANOSCALE ADVANCES 2023; 5:2804-2812. [PMID: 37205282 PMCID: PMC10187029 DOI: 10.1039/d2na00576j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 04/05/2023] [Indexed: 05/21/2023]
Abstract
The key to the application of direct methanol fuel cells is to improve the activity and durability of Pt-based catalysts. Based on the upshift of the d-band centre and exposure to more Pt active sites, Pt3PdTe0.2 catalysts with significantly enhanced electrocatalytic performance for the methanol oxidation reaction (MOR) were designed in this study. A series of different Pt3PdTex (x = 0.2, 0.35, and 0.4) alloy nanocages with hollow and hierarchical structures were synthesized using cubic Pd nanoparticles as sacrificial templates and PtCl62- and TeO32- metal precursors as oxidative etching agents. The Pd nanocubes were oxidized into an ionic complex, which was further co-reduced with Pt and Te precursors by reducing agents to form the hollow Pt3PdTex alloy nanocages with a face-centred cubic lattice. The sizes of the nanocages were around 30-40 nm, which were larger than the Pd templates (18 nm) and the thicknesses of the walls were 7-9 nm. The Pt3PdTe0.2 alloy nanocages exhibited the highest catalytic activities and stabilities toward the MOR after electrochemical activation in sulfuric acid solution. CO-stripping tests suggested the enhanced CO-tolerant ability due to the doping of Te. The specific activity of Pt3PdTe0.2 for the MOR reached 2.71 mA cm-2 in acidic conditions, which was higher than those of Pd@Pt core-shell and PtPd1.5 alloy nanoparticles and commercial Pt/C. A DMFC with Pt3PdTe0.2 as the anodic catalyst output a higher power density by 2.6 times than that of commercial Pt/C, demonstrating its practicable application in clean energy conversions. Density functional theory (DFT) confirmed that the alloyed Te atoms altered the electron distributions of Pt3PdTe0.2, which could lower the Gibbs free energy of the rate-determining methanol dehydrogenation step and greatly improve the MOR catalytic activity and durability.
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Affiliation(s)
- Yuhe Shi
- School of Science, Harbin Institute of Technology Shenzhen 518055 China
| | - Ling Zhang
- School of Science, Harbin Institute of Technology Shenzhen 518055 China
| | - Huiwen Zhou
- School of Science, Harbin Institute of Technology Shenzhen 518055 China
| | - Ruanshan Liu
- School of Science, Harbin Institute of Technology Shenzhen 518055 China
| | - Shichen Nie
- Shandong Hynar Water Environmental Protection Co., Ltd Heze 274400 China
| | - Guojie Ye
- Hynar Water Group Co., Ltd Shenzhen 518052 China
| | - Fengxia Wu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Anhui 230026 China
| | - Wenxin Niu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Anhui 230026 China
| | - Jing Long Han
- School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen 518055 China
- State Key Laboratory of Urban Water Resource and Environment (Shenzhen), Harbin Institute of Technology Shenzhen 518055 China
| | - Ai Jie Wang
- School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen 518055 China
- State Key Laboratory of Urban Water Resource and Environment (Shenzhen), Harbin Institute of Technology Shenzhen 518055 China
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2
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Chen TW, Pang DW, Kang JX, Zhang DF, Guo L. Network-Like Platinum Nanosheets Enabled by a Calorific-Effect-Induced-Fusion Strategy for Enhanced Catalytic Hydrogenation Performance. Front Chem 2022; 9:818900. [PMID: 35071195 PMCID: PMC8766668 DOI: 10.3389/fchem.2021.818900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 11/29/2021] [Indexed: 11/29/2022] Open
Abstract
In this paper, we report the construction of network-like platinum (Pt) nanosheets based on Pt/reduced graphite oxide (Pt/rGO) hybrids by delicately utilizing a calorific-effect-induced-fusion strategy. The tiny Pt species first catalyzed the H2-O2 combination reaction. The released heat triggered the combustion of the rGO substrate under the assistance of the Pt species catalysis, which induced the fusion of the tiny Pt species into a network-like nanosheet structure. The loading amount and dispersity of Pt on rGO are found to be crucial for the successful construction of network-like Pt nanosheets. The as-prepared products present excellent catalytic hydrogenation activity and superior stability towards unsaturated bonds such as olefins and nitrobenzene. The styrene can be completely converted into phenylethane within 60 min. The turnover frequency (TOF) value of network-like Pt nanosheets is as high as 158.14 h−1, which is three times higher than that of the home-made Pt nanoparticles and among the highest value of the support-free bimetallic catalysts ever reported under similar conditions. Furthermore, the well dispersibility and excellent aggregation resistance of the network-like structure endows the catalyst with excellent recyclability. The decline of conversion could be hardly identified after five times recycling experiments.
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Affiliation(s)
- Ting-Wen Chen
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China.,School of Physics, Beihang University, Beijing, China
| | - Da-Wei Pang
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, China
| | - Jian-Xin Kang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Dong-Feng Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Lin Guo
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
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3
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Assembling the PdCu/rGO catalysts for methanol oxidation reaction in alkaline media by tuning the electronic structure. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136473] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4
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Ren G, Zhang Z, Liu Y, Liang Y, Zhang X, Wu S, Shen J. Facile Synthesis Of Composition-Controllable PtPdAuTe Nanowires As Superior Electrocatalysts For Direct Methanol Fuel Cells. Chem Asian J 2020; 15:98-105. [PMID: 31733030 DOI: 10.1002/asia.201901456] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/10/2019] [Indexed: 11/09/2022]
Abstract
Multicomponent Pt-based nanowires (NWs) have attracted widespread attention as eletrocatalysts toward direct alcohol fuel cells because of their unique one-dimensional structure and high reaction dynamics. Quaternary PtPdAuTe NWs are designed via a facile template method, and NWs with a different composition are obtained by adjusting the feed ratio of metal precursors. The direct displacement reaction of metal precursors with Te NWs and the partial oxidation of Te lead to the formation of quaternary NWs. The rough surface and abundant reactive sites deriving from the rearrangement of metal atoms on the Te NWs surface endow the PtPdAuTe NWs with a superior electrocatalytic property and durability for methanol oxidation. The Pt20 Pd20 Au10 Te50 NWs display the largest mass activity and best stability among all catalysts. The preparation of PtPdAuTe NWs could provide a viable strategy for the preparation of other multicomponent NWs.
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Affiliation(s)
- Guohong Ren
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing, 210023, China
| | - Zhicheng Zhang
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing, 210023, China
| | - Yajun Liu
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing, 210023, China
| | - Ying Liang
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing, 210023, China
| | - Xichen Zhang
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing, 210023, China
| | - Shishan Wu
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing, 210023, China
| | - Jian Shen
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing, 210023, China.,Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, Wenyuan Road, Qixia District, Nanjing, 210046, China
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He Z, Yang Y, Liang HW, Liu JW, Yu SH. Nanowire Genome: A Magic Toolbox for 1D Nanostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1902807. [PMID: 31566828 DOI: 10.1002/adma.201902807] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/07/2019] [Indexed: 06/10/2023]
Abstract
1D nanomaterials with high aspect ratio, i.e., nanowires and nanotubes, have inspired considerable research interest thanks to the fact that exotic physical and chemical properties emerge as their diameters approach or fall into certain length scales, such as the wavelength of light, the mean free path of phonons, the exciton Bohr radius, the critical size of magnetic domains, and the exciton diffusion length. On the basis of their components, aspect ratio, and properties, there may be imperceptible connections among hundreds of nanowires prepared by different strategies. Inspired by the heredity system in life, a new concept termed the "nanowire genome" is introduced here to clarify the relationships between hundreds of nanowires reported previously. As such, this approach will not only improve the tools incorporating the prior nanowires but also help to precisely synthesize new nanowires and even assist in the prediction on the properties of nanowires. Although the road from start-ups to maturity is long and fraught with challenges, the genetical syntheses of more than 200 kinds of nanostructures stemming from three mother nanowires (Te, Ag, and Cu) are summarized here to demonstrate the nanowire genome as a versatile toolbox. A summary and outlook on future challenges in this field are also presented.
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Affiliation(s)
- Zhen He
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Yuan Yang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Hai-Wei Liang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Jian-Wei Liu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Shu-Hong Yu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
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6
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Yin S, Wang H, Deng K, Dai Z, Wang Z, Xu Y, Li X, Xue H, Wang L. Ultralong Ternary PtRuTe Mesoporous Nanotubes Fabricated by Micelle Assembly with a Self‐Sacrificial Template. Chemistry 2019; 25:5316-5321. [DOI: 10.1002/chem.201806382] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 01/22/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Shuli Yin
- State Key Laboratory Breeding Base of Green-Chemical, Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of Technology, Hangzhou 310014 Zhejiang P.R. China
| | - Hongjing Wang
- State Key Laboratory Breeding Base of Green-Chemical, Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of Technology, Hangzhou 310014 Zhejiang P.R. China
| | - Kai Deng
- State Key Laboratory Breeding Base of Green-Chemical, Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of Technology, Hangzhou 310014 Zhejiang P.R. China
| | - Zechuan Dai
- State Key Laboratory Breeding Base of Green-Chemical, Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of Technology, Hangzhou 310014 Zhejiang P.R. China
| | - Ziqiang Wang
- State Key Laboratory Breeding Base of Green-Chemical, Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of Technology, Hangzhou 310014 Zhejiang P.R. China
| | - You Xu
- State Key Laboratory Breeding Base of Green-Chemical, Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of Technology, Hangzhou 310014 Zhejiang P.R. China
| | - Xiaonian Li
- State Key Laboratory Breeding Base of Green-Chemical, Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of Technology, Hangzhou 310014 Zhejiang P.R. China
| | - Hairong Xue
- State Key Laboratory Breeding Base of Green-Chemical, Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of Technology, Hangzhou 310014 Zhejiang P.R. China
| | - Liang Wang
- State Key Laboratory Breeding Base of Green-Chemical, Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of Technology, Hangzhou 310014 Zhejiang P.R. China
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7
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Yang X, Xue J, Feng L. Pt nanoparticles anchored over Te nanorods as a novel and promising catalyst for methanol oxidation reaction. Chem Commun (Camb) 2019; 55:11247-11250. [DOI: 10.1039/c9cc06004a] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Pt/Te nanorods exhibited excellent catalytic performance for methanol oxidation in both acidic and alkaline electrolytes.
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Affiliation(s)
- Xudong Yang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Jia Xue
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Ligang Feng
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
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8
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Lee YW, Im M, Hong JW, Han SW. Dendritic Ternary Alloy Nanocrystals for Enhanced Electrocatalytic Oxidation Reactions. ACS APPLIED MATERIALS & INTERFACES 2017; 9:44018-44026. [PMID: 29172429 DOI: 10.1021/acsami.7b14763] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Engineering the morphology and composition of multimetallic nanocrystals composed of noble and 3d transition metals has been of great interest due to its high potential to the development of high-performance catalytic materials for energy and sustainability. In the present work, we developed a facile aqueous approach for the formation of homogeneous ternary alloy nanocrystals with a dendritic shape, Pt-Pd-Cu nanodendrites, of which synthesis is hard to be achieved because of synthetic difficulties. Proper choice of stabilizer and fine control over the amount of stabilizer and reductant allowed the successful formation of Pt-Pd-Cu nanodendrites with controlled sizes and compositions. The prepared ternary alloy nanodendrites exhibited considerably improved electrocatalytic performance toward methanol and ethanol oxidation reactions compared to their binary alloy counterparts and commercial Pt and Pd catalysts, as well as to previously reported Pt- and Pd-based nanocatalysts because of synergism between their morphological and compositional characteristics. We anticipate that the present approach will be helpful to develop efficient electrocatalysis systems for practical applications.
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Affiliation(s)
- Young Wook Lee
- Center for Nanotectonics, Department of Chemistry and KI for the NanoCentury, KAIST , Daejeon 34141, Korea
| | - Mintaek Im
- Center for Nanotectonics, Department of Chemistry and KI for the NanoCentury, KAIST , Daejeon 34141, Korea
| | - Jong Wook Hong
- Department of Chemistry, University of Ulsan , Ulsan 44610, Korea
| | - Sang Woo Han
- Center for Nanotectonics, Department of Chemistry and KI for the NanoCentury, KAIST , Daejeon 34141, Korea
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9
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The study of platinum-tellurium intermetallic nanoparticles for formic acid electro-oxidation. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.126] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Peng X, Chen D, Yang X, Wang D, Li M, Tseng CC, Panneerselvam R, Wang X, Hu W, Tian J, Zhao Y. Microwave-Assisted Synthesis of Highly Dispersed PtCu Nanoparticles on Three-Dimensional Nitrogen-Doped Graphene Networks with Remarkably Enhanced Methanol Electrooxidation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33673-33680. [PMID: 27960387 DOI: 10.1021/acsami.6b11800] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A well-dispersed PtCu alloy nanoparticles (NPs) on three-dimensional nitrogen-doped graphene (PtCu/3D N-G) electrocatalyst has been successfully synthesized by a conventional hydrothermal method combined with a high-efficiency microwave-assisted polyol process. The morphology, composition, and structures are well-characterized by scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, X-ray powder diffraction, and X-ray photoelectron spectroscopy. Cyclic voltammograms illustrate that the as-prepared PtCu/3D N-G electrocatalyst possesses the larger electrochemical active surface area, lower onset potential, higher current density, and better tolerance to CO poisoning than PtCu NPs on reduced graphene oxide and XC-72 carbon black in acid solution. In addition, long-time chronoamperometry reveals that the PtCu/3D N-G catalyst exhibits excellent stability even longer than 60 min toward acid methanol electrooxidation. The remarkably enhanced performance is related to the combined effects of uniformly interconnected three-dimensional porous graphene networks, nitrogen doping, modified Pt alloy NPs, and strong binding force between Pt alloy NPs and 3D N-G structures.
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Affiliation(s)
- Xinglan Peng
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Duhong Chen
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Xiulin Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Dongsheng Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Mengliu Li
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Chien-Chih Tseng
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Rajapandiyan Panneerselvam
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Xiao Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Wenjing Hu
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Jianniao Tian
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Yanchun Zhao
- Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
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11
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Comparative Analysis of Reactant and Product Adsorption Energies in the Selective Oxidative Coupling of Alcohols to Esters on Au(111). Top Catal 2016. [DOI: 10.1007/s11244-016-0660-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Lou Y, Li C, Gao X, Bai T, Chen C, Huang H, Liang C, Shi Z, Feng S. Porous Pt Nanotubes with High Methanol Oxidation Electrocatalytic Activity Based on Original Bamboo-Shaped Te Nanotubes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:16147-16153. [PMID: 27310183 DOI: 10.1021/acsami.6b05350] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this report, a facile and general strategy was developed to synthesize original bamboo-shaped Te nanotubes (NTs) with well-controlled size and morphology. On the basis of the as-prepared Te NTs, porous Pt nanotubes (NTs) with excellent property and structural stability have been designed and manufactured. Importantly, we avoided the use of surface stabilizing agents, which may affect the catalytic properties during the templated synthesis process. Furthermore, Pt NTs with different morphology were successfully prepared by tuning the experimental parameters. As a result, transmission electron microscopy (TEM) study shows that both Te NTs and Pt NTs have uniform size and morphology. Following cyclic voltammogram (CV) testing, the as-prepared porous Pt NTs and macroporous Pt NTs exhibited excellent catalytic activities toward electrochemical methanol oxidation reactions due to their tubiform structure with nanoporous framework. Thus, the as-prepared Pt NTs with specific porous structure hold potential usage as alternative anode catalysts for direct methanol fuel cells (DMFCs).
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Affiliation(s)
| | | | | | - Tianyu Bai
- College of Medical Laboratory, Dalian Medical University , Dalian 116044, People's Republic of China
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13
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Wu S, Liu J, Tian Z, Cai Y, Ye Y, Yuan Q, Liang C. Highly Dispersed Ultrafine Pt Nanoparticles on Reduced Graphene Oxide Nanosheets: In Situ Sacrificial Template Synthesis and Superior Electrocatalytic Performance for Methanol Oxidation. ACS APPLIED MATERIALS & INTERFACES 2015; 7:22935-22940. [PMID: 26435201 DOI: 10.1021/acsami.5b06153] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report a simple and environmentally friendly route to prepare platinum/reduced graphene oxide (Pt/rGO) nanocomposites (NCs) with highly reactive MnOx colloids as reducing agents and sacrificial templates. The colloids are obtained by laser ablation of a metallic Mn target in graphene oxide (GO)-containing solution. Structural and morphological investigations of the as-prepared NCs revealed that ultrafine Pt nanoparticles (NPs) with an average size of 1.8 (±0.6) nm are uniformly dispersed on the surfaces of rGO nanosheets. Compared with commercial Pt/C catalysts, Pt/rGO NCs with highly electrochemically active surface areas show remarkably improved catalytic activity and durability toward methanol oxidation. All of these superior characteristics can be attributed to the small particle size and uniform distribution of the Pt NPs, as well as the excellent electrical conductivity and stability of the rGO catalyst support. These findings suggest that Pt/rGO electrocatalysts are promising candidate materials for practical use in fuel cells.
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Affiliation(s)
- Shouliang Wu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Jun Liu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Zhenfei Tian
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Yunyu Cai
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Yixing Ye
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Qinglin Yuan
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
- Department of Materials Science and Engineering, University of Science and Technology of China , Hefei 230026, China
| | - Changhao Liang
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
- Department of Materials Science and Engineering, University of Science and Technology of China , Hefei 230026, China
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14
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Zhu C, Du D, Eychmüller A, Lin Y. Engineering Ordered and Nonordered Porous Noble Metal Nanostructures: Synthesis, Assembly, and Their Applications in Electrochemistry. Chem Rev 2015; 115:8896-943. [DOI: 10.1021/acs.chemrev.5b00255] [Citation(s) in RCA: 502] [Impact Index Per Article: 55.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Chengzhou Zhu
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164-2920, United States
| | - Dan Du
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164-2920, United States
- Key
Laboratory of Pesticide and Chemical Biology of the Ministry of Education,
College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | | | - Yuehe Lin
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164-2920, United States
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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