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Priya M, Muthukumaran B. Membraneless ethanol fuel cell Pt-Sn-Re nano active catalyst on a mesoporous carbon support. RSC Adv 2024; 14:9646-9655. [PMID: 38525066 PMCID: PMC10958457 DOI: 10.1039/d3ra06599e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/19/2023] [Indexed: 03/26/2024] Open
Abstract
Herein, we report, for the first-time, mesoporous carbon-supported binary and ternary catalysts with different atomic ratios of Pt/MC (100), Pt-Sn/MC (50 : 50), Pt-Re/MC (50 : 50), Pt-Sn-Re/MC (80 : 10 : 10) and Pt-Sn-Re/MC (80 : 115 : 05) prepared using a co-impregnation reduction method as anode components for membraneless ethanol fuel cells (MLEFLs). Mechanistic and structural insights into binary Pt-Sn/MC, Pt-Re/MC and ternary Pt-Sn-Re/MC catalysts were obtained using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDX) methods. In particular, chemical characterization via cyclic voltammetry, CO stripping voltammetry and chronoamperometry indicated that Pt-Sn-Re/MC (80 : 15 : 05) had better dynamics toward ethanol oxidation than Pt-Sn-Re/MC (80 : 10 : 10), Pt-Sn/MC (50 : 50) and Pt-Re/MC (50 : 50) catalysts. In terms of the single cell performance of the prepared catalysts, Pt-Sn-Re/MC (80 : 15 : 05) (31.5 mW cm-2) showed a higher power density and current density than Pt-Sn-Re/MC(80 : 10 : 10), Pt-Re/MC (50 : 50) and Pt-Sn/MC (50 : 50) at room temperature. The addition of Re into the binary Pt-Sn catalyst improved its electrical performance for ethanol oxidation in a membraneless ethanol fuel cell. As a result, the ternary-based Pt-Sn-Re/MC (80 : 15 : 05) catalyst demonstrated enhanced performance compared to monometallic and bimetallic catalysts in the ethanol oxidation reaction in a membraneless fuel cell.
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Affiliation(s)
- M Priya
- Department of Chemistry, School of Basic Sciences, Vels Institute of Science, Technology & Advanced Studies Chennai Tamilnadu India
| | - B Muthukumaran
- Department of Chemistry, Presidency College (Autonomous) Chennai 600 005 India
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2
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Yaldagard M, Shahbaz M, Kim HW, Kim SS. Ethanol Electro-Oxidation on Catalysts with S-ZrO 2-Decorated Graphene as Support in Fuel Cell Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3327. [PMID: 36234455 PMCID: PMC9565634 DOI: 10.3390/nano12193327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Direct ethanol fuel cells (DEFCs) are considered the most suitable direct alcohol fuel cell (DAFC) in terms of safety and current density. The obstacle to DEFC commercialization is the low reaction kinetics of ethanol (C2H5OH) oxidation because of the poor performance of the electrocatalyst. In this study, for the first time, graphene nanoplates (GNPs) were coated with sulfated zirconium dioxide (ZrO2) as adequate support for platinum (Pt) catalysts in DEFCs. A Pt/S-ZrO2-GNP electrocatalyst was prepared by a new process, polyol synthesis, using microwave heating. Field emission scanning electron microscope (FESEM) imaging revealed well-dispersed platinum nanoparticles supported on the S-ZrO2-GNP powder. Analysis of the Fourier transform infrared (FTIR) spectrometry confirmed that sulfate modified the surfaces of the sample. In X-ray diffraction (XRD), no effect of S-ZrO2 on the crystallinity net in Pt was found. Pt/S-ZrO2-GNP electrode outperformed those with unsulfated counterparts, primarily for the higher access with electron and proton, confirming sulfonating as a practical approach for increasing the performance, electrocatalytic activity, and carbon monoxide (CO) tolerance in an electrocatalyst. A considerable decrease in the voltage of the CO electrooxidation peak from 0.93 V for Pt/C to 0.76 V for the Pt/S-ZrO2-GNP electrode demonstrates that the new material increases activity for CO electrooxidation. Moreover, the as-prepared Pt/S-ZrO2-GNPs electrocatalyst exhibits high catalytic activity for the EOR in terms of electrochemical surface area with respect to Pt/ZrO2-GNPs and Pt/C (199.1 vs. 95 and 67.2 cm2.mg-1 Pt), which may be attributed to structural changes caused by the high specific surface area of graphene nanoplates catalyst support and sulfonating effect as mentioned above. Moreover, EIS results showed that the Pt/S-ZrO2-GNPs electrocatalyst has a lower charge transfer resistance than Pt/ ZrO2-GNPs and Pt/C in the presence of ethanol demonstrating an increased ethanol oxidation activity and reaction kinetics by Pt/S-ZrO2-GNPs.
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Affiliation(s)
- Maryam Yaldagard
- Department of Chemical Engineering, Faculty of Engineering, Urmia University, Urmia 5766-151818, Iran
| | - Mehrdard Shahbaz
- Department of Materials Science and Engineering, Faculty of Engineering, Urmia University, Urmia 5766-151818, Iran
| | - Hyoun Woo Kim
- Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea
| | - Sang Sub Kim
- Department of Materials Science and Engineering, Inha University, Incheon 22212, Korea
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Azcoaga Chort MF, Nagel PA, Veizaga NS, Rodríguez VI, de Miguel SR. Effect of Sn content on Pt/
CNT
electrocatalysts for direct ethanol fuel cell application. CAN J CHEM ENG 2022. [DOI: 10.1002/cjce.24252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M. Florencia Azcoaga Chort
- Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” (INCAPE), Facultad de Ingeniería Química (UNL)‐CONICET Santa Fe Argentina
| | - Pablo A. Nagel
- Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” (INCAPE), Facultad de Ingeniería Química (UNL)‐CONICET Santa Fe Argentina
| | - Natalia S. Veizaga
- Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” (INCAPE), Facultad de Ingeniería Química (UNL)‐CONICET Santa Fe Argentina
| | - Virginia I. Rodríguez
- Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” (INCAPE), Facultad de Ingeniería Química (UNL)‐CONICET Santa Fe Argentina
| | - Sergio R. de Miguel
- Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” (INCAPE), Facultad de Ingeniería Química (UNL)‐CONICET Santa Fe Argentina
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Abd-Elsabour M, Alhamzani AG, Abou-Krisha MM. Fabrication of novel nickel-modified electrodes and their application for methanol oxidation in fuel cell. IONICS 2022; 28:1915-1925. [DOI: 10.1007/s11581-022-04447-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/13/2021] [Accepted: 01/08/2022] [Indexed: 09/02/2023]
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Yun Q, Xu J, Wei T, Ruan Q, Zhu X, Kan C. Synthesis of Pd nanorod arrays on Au nanoframes for excellent ethanol electrooxidation. NANOSCALE 2022; 14:736-743. [PMID: 34939638 DOI: 10.1039/d1nr05987d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Au-Pd hollow nanostructures have attracted a lot of attention because of their excellent ethanol electrooxidation performance. Herein, we report a facile preparation of Au nanoframe@Pd array electrocatalysts in the presence of cetylpyridinium chloride. The reduced Pd atoms were directed to mainly deposit on the surface of the Au nanoframes in the form of rods, leading to the formation of Au nanoframe@Pd arrays with a super-large specific surface area. The red shift and damping of the plasmon peak were ascribed to the deposition of the Pd arrays on the surface of the Au nanoframes and nanobipyramids, which was verified by electrodynamic simulations. Surfactants, temperature and reaction time determine the growth process and thereby the architecture of the obtained Au-Pd hollow nanostructures. Compared with the Au nanoframe@Pd nanostructures and Au nanobipyramid@Pd arrays, the Au nanoframe@Pd arrays exhibit an enhanced electrocatalytic performance towards ethanol electrooxidation due to an abundance of catalytic active sites. The Au NF@Pd arrays display 4.1 times higher specific activity and 13.7 times higher mass activity than the commercial Pd/C electrocatalyst. Moreover, the nanostructure shows improved stability towards the ethanol oxidation reaction. This study enriches the manufacturing technology to increase the active sites of noble metal nanocatalysts and promotes the development of direct ethanol fuel cells.
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Affiliation(s)
- Qinru Yun
- College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
| | - Juan Xu
- College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
| | - Tingcha Wei
- College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
- Key Laboratory of Aerospace Information Materials and Physics (NUAA), MIIT, Nanjing 211106, China
| | - Qifeng Ruan
- Engineering Product Development, Singapore University of Technology and Design, Singapore 487372
| | - Xingzhong Zhu
- College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
- Key Laboratory of Aerospace Information Materials and Physics (NUAA), MIIT, Nanjing 211106, China
| | - Caixia Kan
- College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
- Key Laboratory of Aerospace Information Materials and Physics (NUAA), MIIT, Nanjing 211106, China
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Uranyl Salen-Type Complex as Co-catalyst for Electrocatalytic Oxidation of Ethanol. Electrocatalysis (N Y) 2021. [DOI: 10.1007/s12678-021-00697-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Easy approach for decorating of poly 4-aminithiophenol with Pd nanoparticles: an efficient electrocatalyst for ethanol oxidation in alkaline media. J Solid State Electrochem 2021. [DOI: 10.1007/s10008-021-04903-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Reprint of "Effect of tin deposition over electrogenerated random defects on Pt(111) surfaces onto ethanol electrooxidation: Electrochemical and FTIR studies". J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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On the absence of a beneficial role of Rh towards C C bond cleavage during low temperature ethanol electrooxidation on PtRh nanoalloys. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114229] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Cao X, Li C, Peng D, Lu Y, Huang K, Wu J, Zhao C, Huang Y. Highly Strained Au Nanoparticles for Improved Electrocatalysis of Ethanol Oxidation Reaction. J Phys Chem Lett 2020; 11:3005-3013. [PMID: 32129627 DOI: 10.1021/acs.jpclett.9b03623] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Au is an ideal noble metal for use as an electrocatalyst for the ethanol oxidation reaction owing to its high performance-to-cost ratio. The catalyst usually exists as nanoparticles (NPs) for high surface area-to-volume ratio. In the present work, a nontraditional physical approach has been developed to fabricate ultrasmall and homogeneous single-crystalline Au NPs by ion bombardment in a precision ion polishing system. Transmission electron microscopy characterizations show that the Au NPs produced with 5 keV Ar+ are highly strained to form twinned crystals, which accumulate a large amount of surface energy, and this was found to be an underlying reason causing strong catalysis. Electrochemistry tests reveal that in alkaline medium the C1 pathway occurs much more preferentially with the strained Au NPs than the normal Au NPs. The surface area-to-volume ratio is no longer the only factor that affects the performance; instead, surface energy might play a more important role in enhancing the catalytic activities.
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Affiliation(s)
- Xun Cao
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Chaojiang Li
- School of Mechanical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Dongdong Peng
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Yu Lu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Kang Huang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Junsheng Wu
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Chunwang Zhao
- College of Arts and Sciences, Shanghai Maritime University, 1550 Haigang Avenue, Pudong New District, Shanghai 201306, China
| | - Yizhong Huang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
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11
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Ethanol Electrooxidation at Platinum-Rare Earth (RE = Ce, Sm, Ho, Dy) Binary Alloys. ENERGIES 2020. [DOI: 10.3390/en13071658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Proton exchange membrane fuel cells and direct alcohol fuel cells have been extensively studied over the last three decades or so. They have emerged as potential systems to power portable applications, providing clean energy, and offering good commercial viability. Ethanol is considered one of the most interesting fuels in this field. Herein, platinum-rare earth (Pt-RE) binary alloys (RE = Ce, Sm, Ho, Dy, nominal composition 50 at.% Pt) were produced and studied as anodes for ethanol oxidation reaction (EOR) in alkaline medium. A Pt-Dy alloy with nominal composition 40 at.% Pt was also tested. Their electrocatalytic performance was evaluated by voltammetric and chronoamperometric measurements in 2 M NaOH solution with different ethanol concentrations (0.2–0.8 M) in the 25–45 °C temperature range. Several EOR kinetic parameters were determined for the Pt-RE alloys, namely the charge transfer and diffusion coefficients, and the number of exchanged electrons. Charge transfer coefficients ranging from 0.60 to 0.69 and n values as high as 0.7 were obtained for the Pt0.5Sm0.5 electrode. The EOR reaction order at the Pt-RE alloys was found to vary between 0.4 and 0.9. The Pt-RE electrodes displayed superior performance for EOR than bare Pt, with Pt0.5Sm0.5 exhibiting the highest electrocatalytic activity. The improved electrocatalytic activity in all of the evaluated Pt-RE binary alloys suggests a strategy for the solution of the existing anode issues due to the structure-sensitive EOR.
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12
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Jin L, Xu H, Chen C, Shang H, Wang Y, Wang C, Du Y. Porous Pt–Rh–Te nanotubes: an alleviated poisoning effect for ethanol electrooxidation. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01249d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of uniform and well-defined ternary 1D Pt–Rh–Te nanotubes with different compositions have been developed.
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Affiliation(s)
- Liujun Jin
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- PR China
| | - Hui Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- PR China
| | - Chunyan Chen
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- PR China
| | - Hongyuan Shang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- PR China
| | - Yong Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- PR China
| | - Caiqin Wang
- College of Science & Institute of Materials Physics and Chemistry
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Yukou Du
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- PR China
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13
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Barbosa AF, Del Colle V, Galiote NA, Tremiliosi-Filho G. Effect of tin deposition over electrogenerated random defects on Pt(111) surfaces onto ethanol electrooxidation: Electrochemical and FTIR studies. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113734] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Barbosa AFB, Del Colle V, Gómez-Marín AM, Angelucci CA, Tremiliosi-Filho G. Effect of the Random Defects Generated on the Surface of Pt(111) on the Electro-oxidation of Ethanol: An Electrochemical Study. Chemphyschem 2019; 20:3045-3055. [PMID: 31342615 DOI: 10.1002/cphc.201900544] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/23/2019] [Indexed: 11/06/2022]
Abstract
In the present work, the Pt(111) surface was disordered by controlling the density of {110}- and {100}-type defects. The cyclic voltammogram (CV) of a disordered surface in acid media consists of three contributions within the hydrogen adsorption/desorption region: one from the well-ordered Pt(111) symmetry and the other two transformed from the {111}-symmetry with contributions of {110}- and {100}-type surface defects. The ethanol oxidation reaction (EOR) was studied on these disordered surfaces. Electrochemical studies were performed in 0.1 M HClO4 +0.1 M ethanol using cyclic voltammetry and chronoamperometry. Changes in current densities associated to the specific potentials at which each oxidation peak appears suggest that different surface domains of disordered platinum oxidize ethanol independently. Additionally, as the surface-defect density increases, the EOR is catalysed better. This tendency is directly observed from the CV parameters because the onset and peak potentials are shifted to less positive values and accompanied by increases in the oxidation-peak current on disordered surfaces. Similarly, the CO oxidation striping confirmed this same tendency. Chronoamperometric experiments showed two opposite behaviors at short oxidation times (0.1 s). The EOR was quickly catalyzed on the most disordered surface, Pt(111)-16, and was then rapidly deactivated. These results provide fundamental information on the EOR, which contributes to the atomic-level understanding of real catalysts.
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Affiliation(s)
- Amaury F B Barbosa
- Institute of Chemistry of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, 13566-590 -, São Carlos, São Paulo, Brazil.,Federal Institute of Alagoas-Campus Penedo, Rod. Engenheiro Joaquim Gonçalves, s/n, 57200-000 -, Penedo, Alagoas, Brazil
| | - Vinicius Del Colle
- Institute of Chemistry of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, 13566-590 -, São Carlos, São Paulo, Brazil.,Department of Chemistry, Federal University of Alagoas-Campus Arapiraca, Av. Manoel Severino Barbosa s/n, 57309-005 -, Arapiraca, Alagoas, Brazil
| | - Ana M Gómez-Marín
- Department of Chemistry, Division of Fundamental Sciences, Technological Institute of Aeronautics, 12228-900 -, São José dos Campos, São Paulo, Brazil
| | - Camilo A Angelucci
- Federal University of ABC, Center for Natural and Human Sciences, Av. Dos Estados, 5001, 09210-580 -, Santo André, São Paulo, Brazil
| | - Germano Tremiliosi-Filho
- Institute of Chemistry of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, 13566-590 -, São Carlos, São Paulo, Brazil
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15
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Abstract
Pt/C and Pt/SnOx/C catalysts were synthesized using the polyol method. Their structure, morphology and chemical composition were studied using a scanning electron microscope equipped with an energy dispersive X-ray spectrometer, transition electron microscope and X-ray photoelectron spectroscope. Electrochemical measurements were based on the results of rotating disk electrode (RDE) experiments applied to ethanol electrooxidation. The quick evaluation of catalyst activity, electrochemical behavior, and an average number of transferred electrons were made using the RDE technique. The usage of SnOx (through the carbon support modification) in a binary system together with Pt causes a significant increase of the catalyst activity in ethanol oxidation reaction and the utilization of ethanol.
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Silva W, Queiroz A, Paganin V, Lima F. Faradaic efficiency of ethanol oxidation to CO2 at metallic nanoparticle/short-side-chain PFSA solid-state electrolyte interfaces investigated by on-line DEMS. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.07.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Ghosh S, Ramos L, Remita H. Swollen hexagonal liquid crystals as smart nanoreactors: implementation in materials chemistry for energy applications. NANOSCALE 2018; 10:5793-5819. [PMID: 29547217 DOI: 10.1039/c7nr08457a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Materials are the key roadblocks for the commercialization of energy conversion devices in fuel cells and solar cells. Significant research has focused on tuning the intrinsic properties of materials at the nanometer scale. The soft template mediated controlled fabrication of advanced nanostructured materials is attracting considerable interest due to the promising applications of these materials in catalysis and electrocatalysis. Swollen hexagonal lyotropic liquid crystals (SLCs) consist of oil-swollen surfactant-stabilized 1D, 2D or 3D nanometric assemblies regularly arranged in an aqueous solvent. Interestingly, the characteristic size of the SLCs can be controlled by adjusting the volume ratio of oil to water. The non-polar and/or polar compartments of the SLCs can be doped with guest molecules and used as nanoreactors for the synthesis of various metals (Pt, Pd, Au, etc.), conducting polymers and composite nanostructures with controlled size and shape. 1D, 2D and 3D mono- and bimetallic nanostructures of controlled composition and porosity can also be fabricated. These materials have demonstrated impressive enhancements of their electrochemical properties as compared to their bulk counterparts and have been identified as promising for further implementation in energy harvesting applications. In this review article, recent research materials are described regarding the development of functional materials with much improved performances for catalysis applications. This review addresses a brief overview of swollen hexagonal mesophases as nanoreactors, describes examples of nanostructured materials synthesized in these nanoreactors, shows several examples of the energy conversion applications in solar light harvesting, fuel cells etc. and also summarizes the associated reaction mechanisms developed in the recent literature for enhanced catalytic activity.
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Affiliation(s)
- Srabanti Ghosh
- Laboratoire de Chimie Physique, UMR 8000-CNRS, Université de Paris-Sud, Université Paris Saclay, 91405 Orsay, France.
| | - Laurence Ramos
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, Montpellier, France
| | - Hynd Remita
- Laboratoire de Chimie Physique, UMR 8000-CNRS, Université de Paris-Sud, Université Paris Saclay, 91405 Orsay, France. and CNRS, Laboratoire de Chimie Physique, UMR 8000, 91405 Orsay, France
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Gwebu SS, Nomngongo PN, Maxakato NW. Pt-Sn Nanoparticles Supported on Carbon Nanodots as Anode Catalysts for Alcohol Electro-oxidation in Acidic Conditions. ELECTROANAL 2018. [DOI: 10.1002/elan.201800098] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sandile Surprise Gwebu
- Department of Applied Chemistry; University of Johannesburg, P.O. Box 17011; Doornfontein 2028 South Africa
| | - Philiswa Nosizo Nomngongo
- Department of Applied Chemistry; University of Johannesburg, P.O. Box 17011; Doornfontein 2028 South Africa
| | - Nobanathi Wendy Maxakato
- Department of Applied Chemistry; University of Johannesburg, P.O. Box 17011; Doornfontein 2028 South Africa
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19
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Synthesis and characterization of a perylene derivative and its application as catalyst for ethanol electro-oxidation. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0344-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Begum H, Ahmed MS, Jeon S. Highly Efficient Dual Active Palladium Nanonetwork Electrocatalyst for Ethanol Oxidation and Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2017; 9:39303-39311. [PMID: 29068660 DOI: 10.1021/acsami.7b09855] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Tunable palladium nanonetwork (PdNN) has been developed for catalyzing ethanol oxidation reaction (EOR) and hydrogen evolution reaction (HER) in alkaline electrolyte. 3D PdNN is regarded as a dual active electrocatalyst for both EOR and HER for energy conversion application. The PdNN has been synthesized by the simple chemical route with the assistance of zinc precursor and a surfactant (i.e., cetyltrimethylammonium bromide, CTAB). The thickness of the network can be tuned by simply adjusting the concentration of CTAB. Both EOR and HER have been performed in an alkaline electrolyte, and characterized by different voltammetric methods. The 3D PdNN has shown 2.2-fold higher electrochemical surface area than the commercially available Pt/C including other tested catalysts with minimal Pd loading. As a result, it provides a higher density of EOR and HER active sites and facilitated the electron transport. For example, it shows 2.6-fold higher mass activity with significantly lower CO2 production for EOR and the similar overpotential (110 mV @ 10 mA cm-2) for HER compared to Pt/C with better reaction kinetics for both reactions. Thus, the PdNN is proved as an efficient electrocatalyst with better electrocatalytic activity and stability than state-of-the-art Pt/C for both EOR and HER because of the crystalline, monodispersed, and support-free porous nanonetwork.
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Affiliation(s)
- Halima Begum
- Department of Chemistry and Institute of Basic Science, Chonnam National University , Gwangju 500-757, Republic of Korea
| | - Mohammad Shamsuddin Ahmed
- Department of Chemistry and Institute of Basic Science, Chonnam National University , Gwangju 500-757, Republic of Korea
| | - Seungwon Jeon
- Department of Chemistry and Institute of Basic Science, Chonnam National University , Gwangju 500-757, Republic of Korea
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Ghosh S, Bera S, Bysakh S, Basu RN. Highly Active Multimetallic Palladium Nanoalloys Embedded in Conducting Polymer as Anode Catalyst for Electrooxidation of Ethanol. ACS APPLIED MATERIALS & INTERFACES 2017; 9:33775-33790. [PMID: 28899089 DOI: 10.1021/acsami.7b08327] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Fabrication of multimetallic nanocatalysts with controllable composition remains a challenge for the development of low-cost electrocatalysts, and incorporating metal-based catalysts into active carbon nanoarchitectures represents an emerging strategy to improve the catalytic performance of electrocatalysts. Herein, a facile method developed for Pd nanoparticle (NP)-based multimetallic alloys incorporated on polypyrrole (Ppy) nanofibers by in situ nucleation and growth of NPs using colloidal radiolytic technique is described. Electrochemical measurement suggests that the as-prepared catalysts demonstrate dramatically enhanced electrocatalytic activity for ethanol oxidation in alkaline medium. The ultrasmall Pd30Pt29Au41/Ppy nanohybrids (∼8 nm) exhibit excellent electrocatalytic activity, which is ∼5.5 times higher than that of its monometallic counterparts (12 A/mg Pd, 5 times higher activity compared to that of Pd/C catalyst). Most importantly, the ternary nanocatalyst shows no obvious change in chemical structure and long-term stability, reflected in the 2% loss in forward current density during 1000 cycles. The superior catalytic activity and durability of the nanohybrids have been achieved due to the formation of Pt-Pd-Au heterojunctions with cooperative action of the three metals in the alloy composition, and the strong interactions between the Ppy nanofiber support with the metal NPs. The facile synthetic approach provides a new generation of polymer-supported metal alloy hybrid nanostructures as potential electrocatalysts with superior catalytic activity for fuel cell applications.
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Affiliation(s)
- Srabanti Ghosh
- Fuel Cell and Battery Division and ‡Materials Characterization Division, CSIR - Central Glass and Ceramic Research Institute , 196, Raja S. C. Mullick Road, Kolkata 700032, India
| | - Susmita Bera
- Fuel Cell and Battery Division and ‡Materials Characterization Division, CSIR - Central Glass and Ceramic Research Institute , 196, Raja S. C. Mullick Road, Kolkata 700032, India
| | - Sandip Bysakh
- Fuel Cell and Battery Division and ‡Materials Characterization Division, CSIR - Central Glass and Ceramic Research Institute , 196, Raja S. C. Mullick Road, Kolkata 700032, India
| | - Rajendra Nath Basu
- Fuel Cell and Battery Division and ‡Materials Characterization Division, CSIR - Central Glass and Ceramic Research Institute , 196, Raja S. C. Mullick Road, Kolkata 700032, India
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Abstract
To elucidate the atomic arrangement of a Pt-Rh-Sn ternary catalyst with a high catalytic activity for ethanol oxidation reaction (EOR) and high CO2 selectivity, we prepared a tandem Pt/Rh/SnOx, in which a Rh adlayer was deposited on a Pt substrate (Rh coverage: 0.28), followed by depositing several layers of SnOx only on the Rh surface (Sn coverage: 0.07). For reference, Sn was randomly deposited on the Rh-modified Pt (Pt/Rh) electrode whose Rh and Sn coverages were 0.22 and 0.36 (random Pt/Rh/SnOx). X-ray photoelectron spectroscopy demonstrated that Pt and Rh were metallic, and Sn was largely oxidized. Both Pt/Rh/SnOx electrodes were less positive in onset potential of EOR current density and higher in EOR current density than Pt and Rh/Pt electrodes. In situ infrared reflection-absorption spectroscopy demonstrated that the tandem Pt/Rh/SnOx electrode did not produce acetic acid, but produced CO2 in contrast to the random Pt/Rh/SnOx, suggesting that a tandem arrangement of Pt, Rh and SnOx, in which the Pt and SnOx sites were separated by the Rh sites, was effective for selective CO2 production. In the electrostatic electrolysis at 0.5 V vs. RHE, the tandem Pt/Rh/SnOx electrode exhibited higher EOR current density than the Pt and Pt/Rh electrodes after 1.5 h.
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Improving the electrocatalytic properties of Pd-based catalyst for direct alcohol fuel cells: effect of solid solution. Sci Rep 2017; 7:4907. [PMID: 28687772 PMCID: PMC5501847 DOI: 10.1038/s41598-017-05323-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 06/01/2017] [Indexed: 11/15/2022] Open
Abstract
The tolerance of the electrode against the CO species absorbed upon the surface presents the biggest dilemma of the alcohol fuel cells. Here we report for the first time that the inclusion of (Zr, Ce)O2 solid solution as the supporting material can significantly improve the anti-CO-poisoning as well as the activity of Pd/C catalyst for ethylene glycol electro-oxidation in KOH medium. In particular, the physical origin of the improved electrocatalytic properties has been unraveled by first principle calculations. The 3D stereoscopic Pd cluster on the surface of (Zr, Ce)O2 solid solution leads to weaker Pd-C bonding and smaller CO desorption driving force. These results support that the Pd/ZrO2-CeO2/C composite catalyst could be used as a promising effective candidate for direct alcohol fuel cells application.
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Pérez AE, Ribadeneira R. Use of chemical descriptors approach and DFT to analyze the C C bond cleavage on Pt 3 Re 1 alloy in the ethanol oxidation reaction for fuel cells. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.03.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Tian G, Qi Z, Ma W, Wang Y. On the Catalytic Activity of Pt Supported by Graphyne in the Oxidation of Ethanol. ChemistrySelect 2017; 2:2311-2321. [PMID: 28966970 PMCID: PMC5613985 DOI: 10.1002/slct.201601874] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 02/20/2017] [Indexed: 11/07/2022]
Abstract
The adsorption of Pt clusters on β- and γ-graphyne (β-GY, γ-GY), graphdiyne (GDY), and graphene (GP) was extensively investigated with density functional theory. Ethanol adsorption and its partial oxidation on the Pt supported by the GY and GP were then explored to address the influence of the supporting materials on the activity of Pt nanoclusters to ethanol oxidation. Among the examined adsorption sites such as the hollow, Csp-Csp, and Csp-Csp2 bonds, the hollow site consisting of multiple triple bonds is the most attractive one to adsorb Pt and Pt4 regardless of β-GY, γ-GY, and GDY. The binding of Pt4 to the GDY is slightly stronger than those of β-GY and γ-GY (binding energy: -3.64, -3.73, and -4.08eV). It is remarkable that the adsorption of Pt4 on GY is 2-3 times stronger than that on GP (-3.6-4.1 vs -1.3 eV), showing that the GY and GDY are better substracts than the GP for the stability of Pt clusters. Furthermore, the potential energy profiles for the oxidation of ethanol show that in spite of the higher energy barrier for the adsorbed ethanol on Pt4 supported by γ-GY than by GP (1.54 vs 1.19eV), the dehydrogenation product and of ethanol on Pt-graphyne is much stabler than that on Pt-graphene, suggesting that graphyne is thermodynamically more favorable than graphene as a subtract for the Pt catalyst.
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Affiliation(s)
- Ge Tian
- College of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250100, P. R. China
- Department of Chemistry and Forensic Science, Albany State University, Albany, Georgia 31705, USA
| | - Zhongnan Qi
- Department of Chemistry and Forensic Science, Albany State University, Albany, Georgia 31705, USA
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, China
| | - Wanyong Ma
- College of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250100, P. R. China
| | - Yixuan Wang
- Department of Chemistry and Forensic Science, Albany State University, Albany, Georgia 31705, USA
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26
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One-pot solvothermal synthesis of ordered intermetallic Pt2In3 as stable and efficient electrocatalyst towards direct alcohol fuel cell application. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2016.02.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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28
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Mixed layered WO3/ZrO2 films (with and without rhodium) as active supports for PtRu nanoparticles: enhancement of oxidation of ethanol. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.05.186] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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30
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He D, Rong Y, Carta M, Malpass-Evans R, McKeown NB, Marken F. Fuel cell anode catalyst performance can be stabilized with a molecularly rigid film of polymers of intrinsic microporosity (PIM). RSC Adv 2016. [DOI: 10.1039/c5ra25320a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
There remains a major materials challenge in maintaining the performance of platinum (Pt) anode catalysts in fuel cells due to corrosion and blocking of active sites.
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Affiliation(s)
- Daping He
- Department of Chemistry
- University of Bath
- Bath BA2 7AY
- UK
| | - Yuanyang Rong
- Department of Chemistry
- University of Bath
- Bath BA2 7AY
- UK
| | | | | | | | - Frank Marken
- Department of Chemistry
- University of Bath
- Bath BA2 7AY
- UK
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31
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Banik S, Mahajan A, Chowdhury SR, Bhattacharya SK. Improved and synergistic catalysis of single-pot-synthesized Pt–Ni alloy nanoparticles for anodic oxidation of methanol in alkali. RSC Adv 2016. [DOI: 10.1039/c6ra11814c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the search for commercial anode materials for direct methanol fuel cells, Pt, Ni, and PtxNiy alloy NPs have been synthesized via one pot reduction of the respective pure and mixed metal precursors at 60 °C without adding any capping agent.
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Affiliation(s)
- Senjuti Banik
- Physical Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata – 700 032
- India
| | - Ankita Mahajan
- Physical Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata – 700 032
- India
| | - Sreya Roy Chowdhury
- Physical Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata – 700 032
- India
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32
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Okanishi T, Katayama Y, Ito R, Muroyama H, Matsui T, Eguchi K. Electrochemical oxidation of 2-propanol over platinum and palladium electrodes in alkaline media studied by in situ attenuated total reflection infrared spectroscopy. Phys Chem Chem Phys 2016; 18:10109-15. [DOI: 10.1039/c5cp07518a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the difference between the adsorbed intermediates on Pt and those on Pd during 2-propanol oxidation in alkaline media.
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Affiliation(s)
- Takeou Okanishi
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Yu Katayama
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Ryota Ito
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Hiroki Muroyama
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Toshiaki Matsui
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Koichi Eguchi
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
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33
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Wang Y, He Q, Guo J, Wang J, Luo Z, Shen TD, Ding K, Khasanov A, Wei S, Guo Z. Ultrafine FePd Nanoalloys Decorated Multiwalled Cabon Nanotubes toward Enhanced Ethanol Oxidation Reaction. ACS APPLIED MATERIALS & INTERFACES 2015; 7:23920-23931. [PMID: 26435327 DOI: 10.1021/acsami.5b06194] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Ultrafine iron-palladium (FePd) nanoalloys deposited on γ-Fe2O3, FePd-Fe2O3, further anchored on carboxyl multiwalled carbon nanotubes (MWNTs-COOH), FePd-Fe2O3/MWNTs, were successfully synthesized by a facile one-pot solution based method as thermally decomposing palladium acetylacetonate (Pd(acac)2) and iron pentacarbonyl (Fe(CO)5) in a refluxing dimethylformamide solution in the presence of MWNTs-COOH. A 3.65 fold increase of peak current density was observed in cyclic voltammetry (CV) for ethanol oxidation reaction (EOR) compared with that of Pd/MWNTs after normalizing to Pd mass. The greatly enhanced tolerance stability toward poisoning species and largely reduced charge transfer resistance were also obtained in chronoamperometry and electrochemical impedance spectroscopy due to the downward shifted d-band center of FePd alloy, easily formed oxygen containing species on Fe2O3, and the stabilizing role of the MWNTs.
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Affiliation(s)
- Yiran Wang
- Integrated Composites Laboratory (ICL), Chemical & Biomolecular Engineering, College of Engineering, The University of Tennessee , Knoxville, Tennessee 37996, United States
| | - Qingliang He
- Integrated Composites Laboratory (ICL), Chemical & Biomolecular Engineering, College of Engineering, The University of Tennessee , Knoxville, Tennessee 37996, United States
| | - Jiang Guo
- Integrated Composites Laboratory (ICL), Chemical & Biomolecular Engineering, College of Engineering, The University of Tennessee , Knoxville, Tennessee 37996, United States
| | - Jinmin Wang
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Second Polytechnic University , Shanghai 201209, People's Republic of China
| | - Zhiping Luo
- Department of Chemistry and Physics, Fayetteville State University , Fayetteville, North Carolina 28301, United States
| | - Tong D Shen
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University , Hebei 066004, China
| | - Keqiang Ding
- College of Chemistry and Materials Science, Hebei Normal University , Shijiazhuang 050024, China
| | - Airat Khasanov
- Department of Chemistry University of North Carolina at Asheville , Asheville, North Carolina 28804, United States
| | - Suying Wei
- Department of Chemistry and Biochemistry Lamar University , Beaumont, Texas 77710, United States
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Chemical & Biomolecular Engineering, College of Engineering, The University of Tennessee , Knoxville, Tennessee 37996, United States
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34
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Cetinkaya AY, Ozdemir OK, Koroglu EO, Hasimoglu A, Ozkaya B. The development of catalytic performance by coating Pt-Ni on CMI7000 membrane as a cathode of a microbial fuel cell. BIORESOURCE TECHNOLOGY 2015; 195:188-193. [PMID: 26116447 DOI: 10.1016/j.biortech.2015.06.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/12/2015] [Accepted: 06/13/2015] [Indexed: 06/04/2023]
Abstract
Performance of cathode materials in microbial fuel cell (MFC) from dairy wastewater has been investigated in laboratory tests. Both cyclic voltammogram experiments and MFC tests showed that Pt-Ni cathode much better than pure Pt cathode. MFC with platinum cathode had the maximum power density of 0.180 W m(-2) while MFC with Pt:Ni (1:1) cathode produced the maximum power density of 0.637 W m(-2), even if the mass mixing ratio of Pt is lower in the alloy were used. The highest chemical oxygen demand (COD) removal efficiency was around 82-86% in both systems. The cyclic voltammogram (CV) analyses show that Pt:Ni (1:1) offers higher specific surface area than Pt alone does. X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) results showed that entire Pt:Ni (1:1) alloys can reduce the oxygen easily than pure platinum, even though less precious metal amount. The main outcome of this study is that Pt-Ni, may serve as a alternative catalyst in MFC applications.
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Affiliation(s)
- Afsin Y Cetinkaya
- Yildiz Technical University, Department of Environmental Engineering, Istanbul, Turkey.
| | - Oguz Kaan Ozdemir
- Yildiz Technical University, Department of Metallurgical and Material Engineering, Istanbul, Turkey
| | - Emre Oguz Koroglu
- Yildiz Technical University, Department of Environmental Engineering, Istanbul, Turkey
| | - Aydin Hasimoglu
- Nanotechnology Research Center, Gebze Institute of Technology, Istanbul, Turkey
| | - Bestami Ozkaya
- Yildiz Technical University, Department of Environmental Engineering, Istanbul, Turkey
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35
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Liu J, Huang Z, Cai K, Zhang H, Lu Z, Li T, Zuo Y, Han H. Clean Synthesis of an Economical 3D Nanochain Network of PdCu Alloy with Enhanced Electrocatalytic Performance towards Ethanol Oxidation. Chemistry 2015; 21:17779-85. [PMID: 26472208 DOI: 10.1002/chem.201503432] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Indexed: 11/06/2022]
Abstract
A one-pot method for the fast synthesis of a 3D nanochain network (NNC) of PdCu alloy without any surfactants is described. The composition of the as-prepared PdCu alloy catalysts can be precisely controlled by changing the precursor ratio of Pd to Cu. First, the Cu content changes the electronic structure of Pd in the 3D NNC of PdCu alloy. Second, the 3D network structure offers large open pores, high surface areas, and self-supported properties. Third, the surfactant-free strategy results in a relatively clean surface. These factors all contribute to better electrocatalytic activity and durability towards ethanol oxidation. Moreover, the use of copper in the alloy lowers the price of the catalyst by replacing the noble metal palladium with non-noble metal copper. The composition-optimized Pd80 Cu20 alloy in the 3D NNC catalyst shows an increased electrochemically active surface area (80.95 m(2) g(-1) ) and a 3.62-fold enhancement of mass activity (6.16 A mg(-1) ) over a commercial Pd/C catalyst.
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Affiliation(s)
- Jiawei Liu
- State Key Laboratory of Agriculture Microbiology, College of Science, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070 (P.R. China)
| | - Zhao Huang
- State Key Laboratory of Agriculture Microbiology, College of Science, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070 (P.R. China)
| | - Kai Cai
- State Key Laboratory of Agriculture Microbiology, College of Science, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070 (P.R. China)
| | - Huan Zhang
- State Key Laboratory of Agriculture Microbiology, College of Science, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070 (P.R. China)
| | - Zhicheng Lu
- State Key Laboratory of Agriculture Microbiology, College of Science, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070 (P.R. China)
| | - Tingting Li
- State Key Laboratory of Agriculture Microbiology, College of Science, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070 (P.R. China)
| | - Yunpeng Zuo
- State Key Laboratory of Agriculture Microbiology, College of Science, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070 (P.R. China)
| | - Heyou Han
- State Key Laboratory of Agriculture Microbiology, College of Science, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070 (P.R. China).
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36
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Hasa B, Kalamaras E, Papaioannou EI, Vakros J, Sygellou L, Katsaounis A. Effect of TiO 2 Loading on Pt-Ru Catalysts During Alcohol Electrooxidation. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.04.104] [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]
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37
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López-Suárez FE, Perez-Cadenas M, Bueno-López A, Carvalho-Filho CT, Eguiluz KIB, Salazar-Banda GR. Platinum–rhodium–tin/carbon electrocatalysts for ethanol oxidation in acid media: effect of the precursor addition order and the amount of tin. J APPL ELECTROCHEM 2015. [DOI: 10.1007/s10800-015-0879-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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von Weber A, Baxter ET, Proch S, Kane MD, Rosenfelder M, White HS, Anderson SL. Size-dependent electronic structure controls activity for ethanol electro-oxidation at Ptn/indium tin oxide (n = 1 to 14). PHYSICAL CHEMISTRY CHEMICAL PHYSICS : PCCP 2015; 17:17601-17610. [PMID: 26018430 DOI: 10.1021/jp5119234] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Understanding the factors that control electrochemical catalysis is essential to improving performance. We report a study of electrocatalytic ethanol oxidation - a process important for direct ethanol fuel cells - over size-selected Pt centers ranging from single atoms to Pt14. Model electrodes were prepared by soft-landing of mass-selected Ptn(+) on indium tin oxide (ITO) supports in ultrahigh vacuum, and transferred to an in situ electrochemical cell without exposure to air. Each electrode had identical Pt coverage, and differed only in the size of Pt clusters deposited. The small Ptn have activities that vary strongly, and non-monotonically with deposited size. Activity per gram Pt ranges up to ten times higher than that of 5 to 10 nm Pt particles dispersed on ITO. Activity is anti-correlated with the Pt 4d core orbital binding energy, indicating that electron rich clusters are essential for high activity.
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Affiliation(s)
- Alexander von Weber
- Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, UT 84112, USA.
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39
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Wang L, Lavacchi A, Bevilacqua M, Bellini M, Fornasiero P, Filippi J, Innocenti M, Marchionni A, Miller HA, Vizza F. Energy Efficiency of Alkaline Direct Ethanol Fuel Cells Employing Nanostructured Palladium Electrocatalysts. ChemCatChem 2015. [DOI: 10.1002/cctc.201500189] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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40
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41
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Dutta K, Das S, Rana D, Kundu PP. Enhancements of Catalyst Distribution and Functioning Upon Utilization of Conducting Polymers as Supporting Matrices in DMFCs: A Review. POLYM REV 2015. [DOI: 10.1080/15583724.2014.958771] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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42
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Lv Q, Feng L, Hu C, Liu C, Xing W. High-quality hydrogen generated from formic acid triggered by in situ prepared Pd/C catalyst for fuel cells. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00245a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High-quality hydrogen can be generated from formic acid triggered by in situ prepared Pd/C catalyst in ambient conditions. The obtained gas can be directly fed into proton exchange membrane fuel cells indicating a very promising application.
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Affiliation(s)
- Qing Lv
- State Key Laboratory of Electroanalytical Chemistry
- Laboratory of Advanced Power Sources
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
| | - Ligang Feng
- Department of Applied Physics
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Chaoquan Hu
- Department of Applied Physics
- Chalmers University of Technology
- Göteborg
- Sweden
| | - Changpeng Liu
- State Key Laboratory of Electroanalytical Chemistry
- Laboratory of Advanced Power Sources
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
| | - Wei Xing
- State Key Laboratory of Electroanalytical Chemistry
- Laboratory of Advanced Power Sources
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
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43
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von Weber A, Baxter ET, Proch S, Kane MD, Rosenfelder M, White HS, Anderson SL. Size-dependent electronic structure controls activity for ethanol electro-oxidation at Ptn/indium tin oxide (n = 1 to 14). Phys Chem Chem Phys 2015; 17:17601-10. [DOI: 10.1039/c5cp01824b] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Activity of small Ptn clusters on ITO is strongly dependent on cluster size, and anti-correlated with the Pt 4d core level binding energy, demonstrating that electron-rich Pt clusters are required for high activity.
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Affiliation(s)
| | - Eric T. Baxter
- Department of Chemistry
- University of Utah
- Salt Lake City
- USA
| | | | | | | | - Henry S. White
- Department of Chemistry
- University of Utah
- Salt Lake City
- USA
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44
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Lu X, Deng Z, Wei S, Zhu Q, Wang W, Guo W, Wu CML. CO tolerance of a Pt3Sn(111) catalyst in ethanol decomposition. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00426h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The alloying element Sn plays bifunctional and ligand effect roles to strengthen the O-end species adsorptions, adjust the electronic structures, weaken the Pt–CO bonds, and thus enhance the CO tolerance of Pt3Sn(111).
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Affiliation(s)
- Xiaoqing Lu
- College of Science
- China University of Petroleum
- Qingdao
- PR China
| | - Zhigang Deng
- College of Science
- China University of Petroleum
- Qingdao
- PR China
- Department of Physics and Materials Science
| | - Shuxian Wei
- College of Science
- China University of Petroleum
- Qingdao
- PR China
| | - Qing Zhu
- College of Science
- China University of Petroleum
- Qingdao
- PR China
| | - Weili Wang
- College of Science
- China University of Petroleum
- Qingdao
- PR China
| | - Wenyue Guo
- College of Science
- China University of Petroleum
- Qingdao
- PR China
| | - Chi-Man Lawrence Wu
- Department of Physics and Materials Science
- City University of Hong Kong
- Hong Kong SAR
- PR China
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments
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Liao H, Qiu Z, Wan Q, Wang Z, Liu Y, Yang N. Universal electrode interface for electrocatalytic oxidation of liquid fuels. ACS APPLIED MATERIALS & INTERFACES 2014; 6:18055-62. [PMID: 25264907 DOI: 10.1021/am504926r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Electrocatalytic oxidations of liquid fuels from alcohols, carboxylic acids, and aldehydes were realized on a universal electrode interface. Such an interface was fabricated using carbon nanotubes (CNTs) as the catalyst support and palladium nanoparticles (Pd NPs) as the electrocatalysts. The Pd NPs/CNTs nanocomposite was synthesized using the ethylene glycol reduction method. It was characterized using transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction, voltammetry, and impedance. On the Pd NPs/CNTs nanocomposite coated electrode, the oxidations of those liquid fuels occur similarly in two steps: the oxidations of freshly chemisorbed species in the forward (positive-potential) scan and then, in the reverse scan (negative-potential), the oxidations of the incompletely oxidized carbonaceous species formed during the forward scan. The oxidation charges were adopted to study their oxidation mechanisms and oxidation efficiencies. The oxidation efficiency follows the order of aldehyde (formaldehyde) > carboxylic acid (formic acid) > alcohols (ethanol > methanol > glycol > propanol). Such a Pd NPs/CNTs nanocomposite coated electrode is thus promising to be applied as the anode for the facilitation of direct fuel cells.
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Affiliation(s)
- Hualing Liao
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology , Wuhan, Hubei 430073, China
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Shen Y, Zhang MZ, Xiao K, Xi J. Synthesis of Pt, PtRh, and PtRhNi Alloys Supported by Pristine Graphene Nanosheets for Ethanol Electrooxidation. ChemCatChem 2014. [DOI: 10.1002/cctc.201402629] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Preparation of template-free sodalite nanozeolite–chitosan-modified carbon paste electrode for electrocatalytic oxidation of ethanol. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2014. [DOI: 10.1007/s13738-014-0498-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Lim JE, Ahn SH, Jang JH, Park H, Kim SK. Electrodeposited NiCu Alloy Catalysts for Glucose Oxidation. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.7.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ye F, Liu H, Feng Y, Li J, Wang X, Yang J. A solvent approach to the size-controllable synthesis of ultrafine Pt catalysts for methanol oxidation in direct methanol fuel cells. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.11.171] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
This perspective article reviews recent advances in the study of important catalytic reactions on gold electrodes.
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Affiliation(s)
| | - Marc T. M. Koper
- Leiden Institute of Chemistry
- Leiden University
- 2300 RA Leiden, The Netherlands
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