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One-Pot Microwave-Assisted Synthesis of Graphene-Supported PtCoM (M = Mn, Ru, Mo) Catalysts for Low-Temperature Fuel Cells. Catalysts 2021. [DOI: 10.3390/catal11121431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, one-pot microwave-assisted synthesis was used to fabricate the graphene (GR)-supported PtCoM catalysts where M = Mn, Ru, and Mo. The catalysts with the molar ratios of metals Pt:Co:Mn, Pt:Co:Ru, and Pt:Co:Mo equal to 1:3:1, 1:2:2, and 7:2:1, respectively, were prepared. Catalysts were characterized using Transmission Electron Microscopy (TEM). The electrocatalytic activity of the GR-supported PtCoMn, PtCoRu, and PtCoMo catalysts was evaluated toward methanol oxidation in an alkaline medium employing cyclic voltammetry and chrono-techniques. The most efficient electrochemical characteristics demonstrated the PtCoMn/GR catalyst with a current density value of 144.5 mA cm−2, which was up to 4.8 times higher than that at the PtCoRu(1:2:2)/GR, PtCoMo(7:2:1)/GR, and bare Pt/GR catalysts.
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Yaqoob L, Noor T, Iqbal N, Nasir H, Mumtaz A. Electrocatalytic performance of NiNH 2BDC MOF based composites with rGO for methanol oxidation reaction. Sci Rep 2021; 11:13402. [PMID: 34183691 PMCID: PMC8238968 DOI: 10.1038/s41598-021-92660-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/14/2021] [Indexed: 02/06/2023] Open
Abstract
Present work comprehensively investigated the electrochemical response of Nickel-2 Aminoterephthalic acid Metal-Organic Framework (NiNH2BDC) and its reduced graphitic carbon (rGO) based hybrids for methanol (CH3OH) oxidation reaction (MOR) in an alkaline environment. In a thorough analysis of a solvothermally synthesized Metal-Organic Frameworks (MOFs) and its reduced graphitic carbon-based hybrids, functional groups detection was performed by FTIR, the morphological study by SEM, crystal structure analysis via XRD, and elemental analysis through XPS while electrochemical testing was accomplished by Chronoamperometry (CA), Cyclic Voltametric method (CV), Electrochemically Active Surface Area (EASA), Tafel slope (b), Electron Impedance Spectroscopy (EIS), Mass Activity, and roughness factor. Among all the fabricated composites, NiNH2BDC MOF/5 wt% rGO hybrid by possessing an auspicious current density (j) of 267.7 mA/cm2 at 0.699 V (vs Hg/HgO), a Tafel slope value of 60.8 mV dec-1, EASA value of 15.7 cm2, and by exhibiting resistance of 13.26 Ω in a 3 M CH3OH/1 M NaOH solution displays grander electrocatalytic activity as compared to state-of-the-art platinum-based electrocatalysts.
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Affiliation(s)
- Lubna Yaqoob
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Tayyaba Noor
- School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Islamabad, Pakistan.
| | - Naseem Iqbal
- U.S-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad, 44000, Pakistan
| | - Habib Nasir
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Asad Mumtaz
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad, Pakistan
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3
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Zhu Z, Liu F, Fan J, Li Q, Min Y, Xu Q. C2 Alcohol Oxidation Boosted by Trimetallic PtPbBi Hexagonal Nanoplates. ACS APPLIED MATERIALS & INTERFACES 2020; 12:52731-52740. [PMID: 33169980 DOI: 10.1021/acsami.0c16215] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The exploration of ternary Pt-based catalysts represents a new trend for the application of electrocatalysts in fuel cells. In the present study, intermetallic PtPbBi hexagonal nanoplates (HNPs) with a hexagonal close-packed structure have been successfully synthesized via a facile solvothermal synthesis approach. The optimized PtPbBi HNPs exhibited excellent mass activity in the ethanol oxidation reaction (8870 mA mg-1Pt) in an alkaline ethanol solution, which is 12.7 times higher than that of JM Pt/C. Meanwhile, the mass activity of PtPbBi HNPs in an ethylene glycol solution (10,225 mA mg-1Pt) is 1.85 times higher than that of JM Pt/C. In particular, its catalytic activity is better than that of most reported Pt-based catalysts. In addition, the optimized PtPbBi HNPs also show a better operational durability than commercial Pt/C. For the ethylene glycol oxidation reaction, a mass activity of 42.7% was retained even after a chronoamperometric test for 3600 s, which is rare among the reported Pt-based catalysts. By combining X-ray photoelectron spectroscopy and electrochemical characterization, we reveal the electron transfer between Pt, Pb, and Bi; this would lead to weakened CO adsorption and enhanced OH adsorption, thereby promoting the removal of toxic intermediates and ensuring that PtPbBi HNP samples have high activity and excellent stability. This work can inspire the design and synthesis of Pt-based nanocatalysts.
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Affiliation(s)
- Zhiqiang Zhu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
| | - Feng Liu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
| | - Jinchen Fan
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
| | - Qiaoxia Li
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
| | - Yulin Min
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
| | - Qunjie Xu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
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4
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Siddharth K, Xing Z, Xiao F, Zhu S, Zhang L, Pan F, Shao M. Au Nanoparticles Modified with Pt, Ru and SnO 2 as Electrocatalysts for Ethanol Oxidation Reaction in Acids. Chem Asian J 2020; 15:2174-2180. [PMID: 32449985 DOI: 10.1002/asia.202000336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 05/23/2020] [Indexed: 11/07/2022]
Abstract
The anodic reaction in direct ethanol fuel cells (DEFCs), ethanol oxidation reaction (EOR) faces challenges, such as incomplete electrooxidation of ethanol and high cost of the most efficient electrocatalyst, Pt in acidic media at low temperature. In this study, core-shell electrocatalysts with an Au core and Pt-based shell (Au@Pt) are developed. The Au core size and Pt shell thickness play an important role in the EOR activity. The Au size of 2.8 nm and one layer of Pt provide the most optimized performance, having 6 times higher peak current density in contrast to commercial Pt/C. SnO2 as a support also enhances the EOR activity of Au@Pt by 1.73 times. Further modifying the Pt shell with Ru atoms achieve the highest EOR current density that is 15 and 2.5 times of Pt/C and Au@Pt. Our results suggest the importance of surface modification in rational design of advanced electrocatalysts.
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Affiliation(s)
- Kumar Siddharth
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong
| | - Zelong Xing
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong
| | - Fei Xiao
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong
| | - Shangqian Zhu
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong
| | - Lili Zhang
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong.,Jiangsu Key Laboratory for Chemistry of Low-Dimension Materials, Huaiyin Normal University, Huaian, 223300, Jiangsu, China
| | - Feng Pan
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, China
| | - Minhua Shao
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong
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5
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Jilani SZ, Cohen CP, Iyanobor EE, Zager D, Zheng R, Frankenfield KM, Tong YJ. Surfactant-Free One-Pot Synthesis of Homogeneous Trimetallic PtNiCu Nanoparticles with Size Control by Using Glycine. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5902-5907. [PMID: 32378413 DOI: 10.1021/acs.langmuir.0c00665] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Homogeneous platinum alloy nanoparticles (NPs) are of great interest to the electrocatalytic community for potential use in various fuel cell electrodes. Increasing the surface area available per unit mass by decreasing the size of NPs while maintaining or improving activity is one of the key tasks of fuel cell catalysis. Achieving both in a synthesis of multielement NPs is still a challenging workup. In this investigation, we report the use of glycine as a size control agent to make ultrasmall homogeneous trimetallic PtNiCu NPs within 2-5 nm range. The mechanistic roles of dimethyl formamide (DMF), formaldehyde, water, and glycine are explored to understand the formation of these small NPs. Interestingly, it was observed that these PtNiCu NPs exhibited substantially enhanced mass activities toward the electro-oxidation of ethanol in comparison to commercial Pt black.
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Affiliation(s)
- Safia Z Jilani
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057, United States
| | - Carter P Cohen
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057, United States
| | - Esther E Iyanobor
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057, United States
| | - Daniel Zager
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057, United States
| | - Rongfeng Zheng
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057, United States
| | - Kaitlyn M Frankenfield
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057, United States
| | - YuYe J Tong
- Department of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057, United States
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Liu H, Li L, Luo L, He Y, Cong C, He Y, Hao Z, Gao D. Green dual-template synthesis of AgPd core-shell nanoparticles with enhanced electrocatalytic activity. NANOTECHNOLOGY 2020; 31:035603. [PMID: 31557747 DOI: 10.1088/1361-6528/ab4836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A key challenge in developing an ethanol oxidation reaction is nontoxic fabrication of highly active stable and low-cost catalysts. Here we design a green synthetic strategy of AgPd bimetallic nanosphere by a dual-template cascade method. The Pd nanoshell is firstly prepared using Vapreotide acetate as a primary template, and then the Ag nanoshell acts as a secondary template for the distribution of AgPd alloy nanoparticles. The AgPd nanoparticles have core-shell structures and various sizes, and their shell thicknesses are tuned by controlling the amount of PdCl2. The six different samples are prepared, named AgPd-1, AgPd-2, AgPd-3, AgPd-4, AgPd-5, and AgPd-6, respectively. The mass current density of AgPd-5, is higher 3.87 times that of commercial Pd/C, and exhibits the best ethanol oxidation reaction activity and long-term stability. The main reasons are that the AgPd-5 possessed excellent specific surface area due to their rough structure, and Ag can remove more CO-like species. This is the first time a Vapreotide acetate/Ag-template method has been used to synthesize a AgPd core-shell structure, which would have broad application prospects for direct ethanol fuel cells.
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Affiliation(s)
- Huan Liu
- Applying Chemistry Key Lab of Hebei Province, Department of Bioengineer, Yanshan University, No. 438 Hebei Street, Qinhuangdao, 066004, People's Republic of China. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, People's Republic of China
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7
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Development of Nickel-BTC-MOF-Derived Nanocomposites with rGO Towards Electrocatalytic Oxidation of Methanol and Its Product Analysis. Catalysts 2019. [DOI: 10.3390/catal9100856] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In this study, electrochemical oxidation of methanol to formic acid using the economical and highly active catalytic Nickel Benzene tricarboxylic acid metal organic framework (Ni-BTC-MOF) and reduced graphene oxide (rGO) nanocomposites modified glassy carbon electrode GCE in alkaline media, which was examined via cyclic voltammetry technique. Nickel based MOF and rGO nanocomposites were prepared by solvothermal approach, followed by morphological and structural characterization of prepared samples through X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), and energy dispersive X-ray (EDX) analysis. The electrochemical testing of synthesized materials represents the effect of the sequential increase in rGO concentration on electrocatalytic activity. The Ni-BTC/4 wt % rGO composite with a pronounced current density of 200.22 mA/cm2 at 0.69 V versus Hg/HgO electrode at 50 mV/s was found to be a potential candidate for methanol oxidation in Direct Methanol Fuel Cell (DMFC) applications. Product analysis was carried out through Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR) spectroscopy, which confirmed the formation of formic acid during the oxidation process, with approximately 62% yield.
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8
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E B, Bu L, Shao Q, Li Y, Huang X. Efficient catalytic hydrogen generation by intermetallic platinum-lead nanostructures with highly tunable porous feature. Sci Bull (Beijing) 2019; 64:36-43. [PMID: 36659520 DOI: 10.1016/j.scib.2018.11.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/31/2018] [Accepted: 11/12/2018] [Indexed: 01/21/2023]
Abstract
The water-gas shift (WGS) reaction is an essential industrial reaction for upgrading hydrogen (H2) by removing carbon monoxide (CO), while highly efficient platinum (Pt)-based catalysts for WGS with simultaneously high activity and stability are still yet to be developed due to the poisoning issue during the reaction. Herein, we report on the porous PtPb peanut nanocrystals (porous PtPb PNCs) and porous PtPb octahedron nanocrystals (porous PtPb ONCs) with controllable ratios of Pt/Pb as extremely active and stable catalysts towards WGS reaction. It exhibits the composition-dependent activity with porous PtPb PNCs-40/ZnO being the most active for WGS to H2, 16.9 times higher than that of the commercial Pt/C. The porous PtPb PNCs-40/ZnO also display outstanding durability with barely activity decay and negligible structure and composition changes after ten successive reaction cycles. X-ray photoelectron spectroscopy (XPS) results reveal that the suitable binding energy of Pt 4f7/2 and the high ratio of Pt(0) to Pt(II) in porous PtPb PNCs/ZnO and porous PtPb ONCs/ZnO are crucial for the enhanced WGS activity. The CO stripping results indicate the optimized CO adsorption strength on the Pt surface ensure the excellent WGS activity and the outstanding durability. The present work demonstrates an important advance in tuning the porous metal nanomaterials as highly efficient and durable catalysts for catalysis, energy conversion and beyond.
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Affiliation(s)
- Bin E
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China; Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China
| | - Lingzheng Bu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yujing Li
- Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China; College of Materials, Beijing Institute of Technology, Beijing 100081, China
| | - Xiaoqing Huang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
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9
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The Modification of Pt/Graphene Composites with Oxophilic Metal Bi (Bi2O3) and Its Dual-Functional Electro-Photo Catalytic Performance. Catalysts 2018. [DOI: 10.3390/catal8100465] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The Pt-Bi (Bi2O3)/GNs (PVP) composite was synthesized using aqueous solution synthesis and characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and Raman spectroscopy. It was found that the water-soluble polyvinyl pyrrolidone (PVP) helped to tune the particles’ morphology, resulting in a uniform distribution of Pt-Bi nanoclusters on the surface of graphene. Cyclic voltammetry, chronoamperometry and linear scanning voltammetry (LSV) were used to study the electrocatalytic properties towards a methanol oxidation reaction (MOR) and an oxygen reduction reaction (ORR). The results show that Pt-Bi (Bi2O3)/GNs (PVP) exhibits superior bifunctional electrocatalytic properties for both MOR and ORR, mainly due to the introduction of oxophilic Bi species and the better dispersion of the Pt-Bi nanoclusters. In particular, the electro-photo catalysis for both MOR and ORR occurred under simulated sunlight irradiation due to the existence of photo-responsive Bi species, which is helpful for converting solar energy into electric energy during a traditional electrocatalytic process.
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10
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3D-ordered porous nitrogen and sulfur Co-Doped carbon supported PdCuW nanoparticles as efficient catalytic cathode materials for Li-O 2 batteries. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.03.150] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Promotional effects of trace Bi on its highly catalytic activity for methanol oxidation of hollow Pt/graphene catalyst. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.096] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Xu H, Yan B, Zhang K, Wang J, Li S, Wang C, Du Y, Yang P. Sub-5nm monodispersed PdCu nanosphere with enhanced catalytic activity towards ethylene glycol electrooxidation. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Sarkar S, Jana R, Vadlamani H, Ramani S, Mumbaraddi D, Peter SC. Facile Aqueous-Phase Synthesis of the PtAu/Bi 2O 3 Hybrid Catalyst for Efficient Electro-Oxidation of Ethanol. ACS APPLIED MATERIALS & INTERFACES 2017; 9:15373-15382. [PMID: 28425705 DOI: 10.1021/acsami.7b00083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
In this work, we present a facile aqueous-phase synthesis of a hybrid catalyst consisting of PtAu alloy supported on Bi2O3 microspheres. Multistep reduction of HAuCl4 and K2PtCl4 salts on Bi2O3 and subsequent annealing lead to the formation of this hybrid catalyst. To the best of our knowledge, this is the first report of using Bi2O3 as a catalyst support in fuel cell applications. The material was characterized by powder X-ray diffraction and various microscopic techniques. This composite showed remarkable activity as well as stability toward the electro-oxidation of ethanol in comparison to commercially available Pt/C. The order of the reactivity was found to be commercial Pt/C (50.4 mA/m2mgPt-1) < Pt/Bi2O3(10) (108 mA/m2mgPt-1) < PtAu/Bi2O3(10) (459 mA/m2mgPt-1). The enhancement in the activity can be explained through cooperative effects, namely, ligand effects of gold and Bi2O3 support, which helps in removing carbon monoxide molecules to avoid the poisoning of the Pt active sites.
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Affiliation(s)
- Sumanta Sarkar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Bengaluru 560064, India
| | - Rajkumar Jana
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Bengaluru 560064, India
| | - Hiranmayee Vadlamani
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Bengaluru 560064, India
| | - Swetha Ramani
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Bengaluru 560064, India
| | - Dundappa Mumbaraddi
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Bengaluru 560064, India
| | - Sebastian C Peter
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Bengaluru 560064, India
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14
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Yang Z, Wang X, Kang X, Zhang S, Guo Y. The PtPdAg/C electrocatalyst with Pt-rich surfaces via electrochemical dealloying of Ag and Pd for ethanol oxidation. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.03.165] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Ren X, Liao B, Li Y, Zhang P, Deng L, Gao Y. Facile synthesis of PdSnCo/nitrogen-doped reduced graphene as a highly active catalyst for lithium-air batteries. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.01.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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16
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Zhang TT, Jiang JY, Wang YH. Supported bimetallic catalyst Pt-Pb/SiO 2 for selective conversion of nitrobenzene to p -aminophenol in pressurized CO 2 /H 2 O system. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.07.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Bu L, Zhang N, Guo S, Zhang X, Li J, Yao J, Wu T, Lu G, Ma JY, Su D, Huang X. Biaxially strained PtPb/Pt core/shell nanoplate boosts oxygen reduction catalysis. Science 2016; 354:1410-1414. [DOI: 10.1126/science.aah6133] [Citation(s) in RCA: 997] [Impact Index Per Article: 110.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 11/02/2016] [Indexed: 01/19/2023]
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18
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Feng Y, Bu L, Guo S, Guo J, Huang X. 3D Platinum-Lead Nanowire Networks as Highly Efficient Ethylene Glycol Oxidation Electrocatalysts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:4464-4470. [PMID: 27412405 DOI: 10.1002/smll.201601620] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 06/02/2016] [Indexed: 06/06/2023]
Abstract
A large-scalable wet-chemical approach to create networked Pt-Pb nanowires (NWs) with tunable compositions is reported. Due to their 3D networked structure, alloy effect, rich defects/steps, and antipoisoning property of Pb, the networked Pt-Pb NWs exhibit the best activity and durability towards ethylene glycol oxidation reaction (EGOR), compared with the networked Pt NWs and Pt/C.
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Affiliation(s)
- Yonggang Feng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
| | - Lingzheng Bu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
| | - Shaojun Guo
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Jun Guo
- Testing & Analysis Center, Soochow University, Jiangsu, 215123, China
| | - Xiaoqing Huang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
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19
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Zhou X, Zheng X. Investigation of electrocatalytic and analytical ability of Pt nanoparticles supported on active carbon modified electrode to analytical determination of glucose. RUSS J ELECTROCHEM+ 2016. [DOI: 10.1134/s1023193516030034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Wu P, Huang Y, Kang L, Wu M, Wang Y. Multisource Synergistic Electrocatalytic Oxidation Effect of Strongly Coupled PdM (M = Sn, Pb)/N-doped Graphene Nanocomposite on Small Organic Molecules. Sci Rep 2015; 5:14173. [PMID: 26434949 PMCID: PMC4593028 DOI: 10.1038/srep14173] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 08/19/2015] [Indexed: 01/02/2023] Open
Abstract
A series of palladium-based catalysts of metal alloying (Sn, Pb) and/or (N-doped) graphene support with regular enhanced electrocatalytic activity were investigated. The peak current density (118.05 mA cm(-2)) of PdSn/NG is higher than the sum current density (45.63 + 47.59 mA cm(-2)) of Pd/NG and PdSn/G. It reveals a synergistic electrocatalytic oxidation effect in PdSn/N-doped graphene Nanocomposite. Extend experiments show this multisource synergetic catalytic effect of metal alloying and N-doped graphene support in one catalyst on small organic molecule (methanol, ethanol and Ethylene glycol) oxidation is universal in PdM(M = Sn, Pb)/NG catalysts. Further, The high dispersion of small nanoparticles, the altered electron structure and Pd(0)/Pd(II) ratio of Pd in catalysts induced by strong coupled the metal alloying and N-doped graphene are responsible for the multisource synergistic catalytic effect in PdM(M = Sn, Pb) /NG catalysts. Finally, the catalytic durability and stability are also greatly improved.
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Affiliation(s)
- Peng Wu
- State Key Laboratory of Structural Chemistry; Key Laboratory of design and assembly of functional nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155#, Fuzhou, 350002, P. R. China
| | - Yiyin Huang
- State Key Laboratory of Structural Chemistry; Key Laboratory of design and assembly of functional nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155#, Fuzhou, 350002, P. R. China
| | - Longtian Kang
- State Key Laboratory of Structural Chemistry; Key Laboratory of design and assembly of functional nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155#, Fuzhou, 350002, P. R. China
| | - Maoxiang Wu
- State Key Laboratory of Structural Chemistry; Key Laboratory of design and assembly of functional nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155#, Fuzhou, 350002, P. R. China
| | - Yaobing Wang
- State Key Laboratory of Structural Chemistry; Key Laboratory of design and assembly of functional nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155#, Fuzhou, 350002, P. R. China
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Recent Advances on Electro-Oxidation of Ethanol on Pt- and Pd-Based Catalysts: From Reaction Mechanisms to Catalytic Materials. Catalysts 2015. [DOI: 10.3390/catal5031507] [Citation(s) in RCA: 175] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Plowman BJ, Abdelhamid ME, Ippolito SJ, Bansal V, Bhargava SK, O’Mullane AP. Electrocatalytic and SERS activity of Pt rich Pt-Pb nanostructures formed via the utilisation of in-situ underpotential deposition of lead. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2622-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Figueiredo M, Arán-Ais R, Feliu J, Kontturi K, Kallio T. Pt catalysts modified with Bi: Enhancement of the catalytic activity for alcohol oxidation in alkaline media. J Catal 2014. [DOI: 10.1016/j.jcat.2014.01.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Cai J, Huang Y, Guo Y. Bi-modified Pd/C catalyst via irreversible adsorption and its catalytic activity for ethanol oxidation in alkaline medium. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.03.059] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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