1
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A separation strategy of Au(III), Pd(II) and Pt(IV) based on hydrophobic deep eutectic solvent from hydrochloric acid media. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2
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Zhang Y, Liu X, Liu T, Ma X, Feng Y, Xu B, Cai W, Li Y, Su D, Shao Q, Huang X. Rhombohedral Pd-Sb Nanoplates with Pd-Terminated Surface: An Efficient Bifunctional Fuel-Cell Catalyst. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202333. [PMID: 35676861 DOI: 10.1002/adma.202202333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Developing high-performance electrocatalysts for the ethanol oxidation reaction (EOR) and the oxygen reduction reaction (ORR) is essential for the commercialization of direct ethanol fuel cells, but it is still formidably challenging. In this work, a novel Pd-Sb hexagonal nanoplate for boosting both cathodic and anodic fuel cell reactions is prepared. Detailed characterizations reveal that the nanoplates have ordered rhombohedral phase of Pd8 Sb3 (denoted as Pd8 Sb3 HPs). The Pd8 Sb3 HPs exhibit much enhanced activity toward the oxidation of various alcohols. Particularly, Pd8 Sb3 HPs/C displays superior specific and mass activities of 29.3 mA cm-2 and 4.5 A mgPd -1 toward the EOR, which are 7.0 and 11.3 times higher than those of commercial Pd/C, and 9.8 and 3.8 times higher than those of commercial Pt/C, respectively, representing one of the best EOR catalysts reported to date. In situ electrochemical attenuated total reflectance surface-enhanced infrared absorption spectroscopy (ATR-SEIRAS) measurements reveal that Pd8 Sb3 HPs/C can effectively promote the C2 pathway of the EOR. As revealed by density functional theory calculations, the high EOR activity of the Pd8 Sb3 HPs can be ascribed to the reduced energy barrier of ethanol dehydrogenation. Additionally, Pd8 Sb3 HPs/C also shows superior performance in the ORR. This work advances the controllable synthesis of the Pd-Sb nanostructure, giving huge impetus for the design of high-efficiency electrocatalysts for energy conversion and beyond.
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Affiliation(s)
- Ying Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China
| | - Xiaozhi Liu
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Tianyang Liu
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Xianyin Ma
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Yonggang Feng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Bingyan Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Wenbin Cai
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Yafei Li
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Dong Su
- Beijing National Laboratory for Condensed Matter Physics Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
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3
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Engineering gold-platinum core-shell nanoparticles by self-limitation in solution. Commun Chem 2022; 5:71. [PMID: 36697905 PMCID: PMC9814372 DOI: 10.1038/s42004-022-00680-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 05/04/2022] [Indexed: 01/28/2023] Open
Abstract
Core-shell particles with thin noble metal shells represent an attractive material class with potential for various applications ranging from catalysis to biomedical and pharmaceutical applications to optical crystals. The synthesis of well-defined core-shell architectures remains, however, highly challenging. Here, we demonstrate that atomically-thin and homogeneous platinum shells can be grown via a colloidal synthesis method on a variety of gold nanostructures ranging from spherical nanoparticles to nanorods and nanocubes. The synthesis is based on the exchange of low binding citrate ligands on gold, the reduction of platinum and the subsequent kinetically hindered growth by carbon monoxide as strong binding ligand. The prerequisites for homogeneous growth are low core-binding ligands with moderate fast ligand exchange in solution, a mild reducing agent to mitigate homonucleation and a strong affinity of a second ligand system that can bind to the shell's surface. The simplicity of the described synthetic route can potentially be adapted to various other material libraries to obtain atomically smooth core-shell systems.
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4
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Kabiraz MK, Ruqia B, Kim J, Kim H, Kim HJ, Hong Y, Kim MJ, Kim YK, Kim C, Lee WJ, Lee W, Hwang GH, Ri HC, Baik H, Oh HS, Lee YW, Gao L, Huang H, Paek SM, Jo YJ, Choi CH, Han SW, Choi SI. Understanding the Grain Boundary Behavior of Bimetallic Platinum–Cobalt Alloy Nanowires toward Oxygen Electro-Reduction. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05766] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mrinal Kanti Kabiraz
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Korea
| | - Bibi Ruqia
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Korea
| | - Jeonghyeon Kim
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Korea
| | - Haesol Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - Hee Jin Kim
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Korea
| | - Youngmin Hong
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Korea
| | - Mi Ji Kim
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Korea
| | - Young Kyoung Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Korea
| | - Chan Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Korea
| | - Won-Jae Lee
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Korea
| | - Wonkyun Lee
- Heterogeneous Catalysis PJT, LG Chem Research Park, Daejeon 34122, Korea
| | - Gyo Hyun Hwang
- Heterogeneous Catalysis PJT, LG Chem Research Park, Daejeon 34122, Korea
| | - Hyeong Cheol Ri
- Department of Physics, Kyungpook National University, Daegu 41566, Korea
| | - Hionsuck Baik
- Korea Basic Science Institute (KBSI), Seoul 02841, Korea
| | - Hyung-Suk Oh
- Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
| | - Young Wook Lee
- Department of Chemistry Education, Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - Lei Gao
- College of Materials Science and Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, Hunan, China
| | - Hongwen Huang
- College of Materials Science and Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, Hunan, China
| | - Seung Min Paek
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Korea
| | - Youn-Jung Jo
- Department of Physics, Kyungpook National University, Daegu 41566, Korea
| | - Chang Hyuck Choi
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Sang Woo Han
- Center for Nanotectonics, Department of Chemistry and KI for the Nano Century, KAIST, Daejeon 34141, Korea
| | - Sang-Il Choi
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Korea
- Department of Hydrogen & Renewable Energy, Kyungpook National University, Daegu 41566, Korea
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5
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Sheng T, Wu HY, Lin X, Lin WF. Insights into reaction mechanisms of ethanol electrooxidation at the Pt/Au(111) interfaces using density functional theory. Phys Chem Chem Phys 2022; 24:27277-27288. [DOI: 10.1039/d2cp03186h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Understanding ethanol electrooxidation reaction kinetics is fundamental to the development of direct ethanol fuel cells.
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Affiliation(s)
- Tian Sheng
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, China
| | - Han-Yue Wu
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, China
| | - Xiao Lin
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
| | - Wen-Feng Lin
- Department of Chemical Engineering, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
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6
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Funo S, Sato F, Cai Z, Chang G, He Y, Oyama M. Codeposition of Platinum and Gold on Nickel Wire Electrodes via Galvanic Replacement Reactions for Electrocatalytic Oxidation of Alcohols. ACS OMEGA 2021; 6:18395-18403. [PMID: 34308070 PMCID: PMC8296713 DOI: 10.1021/acsomega.1c02393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Codeposition of Pt and Au on Ni wire was performed using a simple treatment of immersing Ni wire in aqueous solutions containing both K2PtCl4 and HAuCl4. For evaluating the electrochemical properties of the thus-prepared electrodes, cyclic voltammograms (CVs) of 1.0 M ethanol in 1.0 M NaOH aqueous solutions were recorded. Compared with Pt- or Au-deposited Ni wire electrodes prepared by treating Ni wire in aqueous solutions of a single component, e.g., 1.0 mM K2PtCl4 or 1.0 mM HAuCl4, a noteworthy increase in the electrocatalytic current was observed for the oxidation of ethanol with a PtAu-codeposited Ni (PtAu/Ni) wire electrode even when it was prepared in an aqueous solution containing both 0.10 mM K2PtCl4 and 0.10 mM HAuCl4. In addition, the shape and the peak potentials of CVs recorded using PtAu/Ni wire electrodes were found to be different from those recorded with the Pt- or Au-deposited Ni wire electrodes. Because the CV responses typical of the PtAu/Ni wire electrodes were observed even when a PtAu/Ni wire electrode was prepared in an aqueous solution containing both 0.010 mM K2PtCl4 and 1.0 mM HAuCl4, it is considered that a small amount of Pt was effectively modified or incorporated and affected the electrochemical properties significantly. The CV results for ethanol oxidation were compared with those for the electrocatalytic oxidations of methanol, 1-propanol, and 2-propanol. Besides, the CV results recorded with the present PtAu/Ni wire electrodes are discussed in comparison with some previous results obtained using other PtAu nanoelectrocatalysts.
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Affiliation(s)
- Sota Funo
- Department
of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8520, Japan
| | - Fumikazu Sato
- Department
of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8520, Japan
| | - Zhiwei Cai
- Ministry-of-Education
Key Laboratory for the Green Preparation and Application of Functional
Materials, Hubei Key Laboratory of Polymer Materials, School of Materials
Science and Engineering, Hubei University, No. 368 Youyi Avenue, Wuchang, Wuhan 430062, China
| | - Gang Chang
- Ministry-of-Education
Key Laboratory for the Green Preparation and Application of Functional
Materials, Hubei Key Laboratory of Polymer Materials, School of Materials
Science and Engineering, Hubei University, No. 368 Youyi Avenue, Wuchang, Wuhan 430062, China
| | - Yunbin He
- Ministry-of-Education
Key Laboratory for the Green Preparation and Application of Functional
Materials, Hubei Key Laboratory of Polymer Materials, School of Materials
Science and Engineering, Hubei University, No. 368 Youyi Avenue, Wuchang, Wuhan 430062, China
| | - Munetaka Oyama
- Department
of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8520, Japan
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7
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8
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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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9
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Gao F, Zhang Y, Song T, Wang C, Chen C, Wang J, Guo J, Du Y. Trimetallic platinum-nickel-palladium nanorods with abundant bumps as robust catalysts for methanol electrooxidation. J Colloid Interface Sci 2020; 561:512-518. [DOI: 10.1016/j.jcis.2019.11.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/25/2019] [Accepted: 11/07/2019] [Indexed: 12/26/2022]
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10
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Bai J, Liu D, Yang J, Chen Y. Nanocatalysts for Electrocatalytic Oxidation of Ethanol. CHEMSUSCHEM 2019; 12:2117-2132. [PMID: 30834720 DOI: 10.1002/cssc.201803063] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 03/01/2019] [Indexed: 06/09/2023]
Abstract
The use of ethanol as a fuel in direct alcohol fuel cells depends not only on its ease of production from renewable sources, but also on overcoming the challenges of storage and transportation. In an ethanol-based fuel cell, highly active electrocatalysts are required to break the C-C bond in ethanol for its complete oxidation at lower overpotentials, with the aim of increasing the cell performance, ethanol conversion rates, and fuel efficiency. In recent decades, the development of wet-chemistry methods has stimulated research into catalyst design, reactivity tailoring, and mechanistic investigations, and thus, created great opportunities to achieve efficient oxidation of ethanol. In this Minireview, the nanomaterials tested as electrocatalysts for the ethanol oxidation reaction in acid or alkaline environments are summarized. The focus is mainly on nanomaterials synthesized by using wet-chemistry methods, with particular attention on the relationship between the chemical and physical characteristics of the catalysts, for example, catalyst composition, morphology, structure, degree of alloying, presence of oxides or supports, and their activity for ethanol electro-oxidation. As potential alternatives to noble metals, non-noble-metal catalysts for ethanol oxidation are also briefly reviewed. Insights into further enhancing the catalytic performance through the design of efficient electrocatalysts are also provided.
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Affiliation(s)
- Juan Bai
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of, Education), Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, PR China
| | - Danye Liu
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering Address, Chinese Academy of Sciences, Beijing, 100190, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Jun Yang
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering Address, Chinese Academy of Sciences, Beijing, 100190, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yu Chen
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of, Education), Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, PR China
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11
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Kim M, Lee C, Ko SM, Nam JM. Metal alloy hybrid nanoparticles with enhanced catalytic activities in fuel cell applications. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2018.11.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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12
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Wang Q, Hou W, Meng T, Hou Q, Zhou Y, Wang J. Direct synthesis of 2,5-diformylfuran from carbohydrates via carbonizing polyoxometalate based mesoporous poly(ionic liquid). Catal Today 2019. [DOI: 10.1016/j.cattod.2018.07.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Extending the limits of Pt/C catalysts with passivation-gas-incorporated atomic layer deposition. Nat Catal 2018. [DOI: 10.1038/s41929-018-0118-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Lapp AS, Duan Z, Marcella N, Luo L, Genc A, Ringnalda J, Frenkel AI, Henkelman G, Crooks RM. Experimental and Theoretical Structural Investigation of AuPt Nanoparticles Synthesized Using a Direct Electrochemical Method. J Am Chem Soc 2018; 140:6249-6259. [DOI: 10.1021/jacs.7b12306] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Nicholas Marcella
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | | | - Arda Genc
- Thermo Fisher Scientific, 5350 NE Dawson Creek Drive, Hillsboro, Oregon 97124, United States
| | - Jan Ringnalda
- Thermo Fisher Scientific, 5350 NE Dawson Creek Drive, Hillsboro, Oregon 97124, United States
| | - Anatoly I. Frenkel
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
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15
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Rizo R, Arán-Ais RM, Padgett E, Muller DA, Lázaro MJ, Solla-Gullón J, Feliu JM, Pastor E, Abruña HD. Pt-Rich core/Sn-Rich subsurface/Pt skin Nanocubes As Highly Active and Stable Electrocatalysts for the Ethanol Oxidation Reaction. J Am Chem Soc 2018; 140:3791-3797. [PMID: 29474073 DOI: 10.1021/jacs.8b00588] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Direct ethanol fuel cells are one of the most promising electrochemical energy conversion devices for portable, mobile and stationary power applications. However, more efficient and stable and less expensive electrocatalysts are still required. Interestingly, the electrochemical performance of the electrocatalysts toward the ethanol oxidation reaction can be remarkably enhanced by exploiting the benefits of structural and compositional sensitivity and control. Here, we describe the synthesis, characterization, and electrochemical behavior of cubic Pt-Sn nanoparticles. The electrochemical activity of the cubic Pt-Sn nanoparticles was found to be about three times higher than that obtained with unshaped Pt-Sn nanoparticles and six times higher than that of Pt nanocubes. In addition, stability tests indicated the electrocatalyst preserves its morphology and remains well-dispersed on the carbon support after 5000 potential cycles, while a cubic (pure) Pt catalyst exhibited severe agglomeration of the nanoparticles after a similar stability testing protocol. A detailed analysis of the elemental distribution in the nanoparticles by STEM-EELS indicated that Sn dissolves from the outer part of the shell after potential cycling, forming a ∼0.5 nm Pt skin. This particular atomic composition profile having a Pt-rich core, a Sn-rich subsurface layer, and a Pt-skin surface structure is responsible for the high activity and stability.
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Affiliation(s)
- Rubén Rizo
- Departamento de Química Física, Instituto de Materiales y Nanotecnología , Universidad de La Laguna , Apdo. 456 , 38206 La Laguna , Santa Cruz de Tenerife , Spain
| | - Rosa M Arán-Ais
- Instituto de Electroquímica , Universidad de Alicante , Apartado 99 , 03080 Alicante , Spain
| | | | | | - Ma Jesús Lázaro
- Instituto de Carboquímica , CSIC , Miguel Luesma Castán 4 , 50018 Zaragoza , Spain
| | - José Solla-Gullón
- Instituto de Electroquímica , Universidad de Alicante , Apartado 99 , 03080 Alicante , Spain
| | - Juan M Feliu
- Instituto de Electroquímica , Universidad de Alicante , Apartado 99 , 03080 Alicante , Spain
| | - Elena Pastor
- Departamento de Química Física, Instituto de Materiales y Nanotecnología , Universidad de La Laguna , Apdo. 456 , 38206 La Laguna , Santa Cruz de Tenerife , Spain
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16
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Hassan K, Hathoot AA, Maher R, Abdel Azzem M. Electrocatalytic oxidation of ethanol at Pd, Pt, Pd/Pt and Pt/Pd nano particles supported on poly 1,8-diaminonaphthalene film in alkaline medium. RSC Adv 2018; 8:15417-15426. [PMID: 35539495 PMCID: PMC9079979 DOI: 10.1039/c7ra13694c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 04/14/2018] [Indexed: 11/21/2022] Open
Abstract
An ethanol oxidation reaction (EOR) in alkaline medium was carried out at palladium (Pd) or platinum (Pt) nanoparticles/poly 1,8-diaminonaphthalene (p1,8-DAN) composite catalyst electrodes. Pd and Pt were incorporated onto a p1,8-DAN/GC electrode by a cyclic voltammetry (CV) strategy. The obtained Pd/p1,8-DAN/GC, Pt/p1,8-DAN/GC, Pt/Pd/p1,8-DAN/GC and Pd/Pt/p1,8-DAN/GC modified electrodes were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and cyclic voltammetry (CV) techniques. Electrode surface areas (ESAs) of the obtained catalysts were calculated by carbon monoxide (CO) adsorption using differential electrochemical mass spectroscopy (DEMS). The electrocatalytic oxidation of ethanol (EtOH) at the catalyst electrodes was considered in 0.5 M NaOH solutions by CV and chronoamperometric techniques. The catalyst electrodes significantly enhanced the catalytic efficiency for EOR compared to a bare glassy carbon (GC) electrode. Bimetallic catalyst electrodes demonstrate improved catalytic activity, superior durability and higher tolerance to (CO) poison generated in the development of EOR compared with Pd/p1,8-DAN and Pt/p1,8-DAN catalysts, giving priority to Pt/Pd/p1,8-DAN/GC electrodes. Viability parameters, such as NaOH and EtOH concentrations, scan rate and upper potential limits, were examined and analyzed. This study suggests that the prepared catalysts have pronounced potential applications in direct EOR in fuel cells. An ethanol oxidation reaction (EOR) in alkaline medium was carried out at palladium (Pd) or platinum (Pt) nanoparticles/poly 1,8-diaminonaphthalene (p1,8-DAN) composite catalyst electrodes.![]()
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Affiliation(s)
- K. M. Hassan
- Electrochemistry Research Laboratory
- Physics and Mathematics Engineering Department
- Faculty of Electronic Engineering
- Menoufia University
- Egypt
| | - A. A. Hathoot
- Electrochemistry Laboratory
- Chemistry Department
- Faculty of Science
- Menoufia University
- Egypt
| | - R. Maher
- Electrochemistry Laboratory
- Chemistry Department
- Faculty of Science
- Menoufia University
- Egypt
| | - M. Abdel Azzem
- Electrochemistry Laboratory
- Chemistry Department
- Faculty of Science
- Menoufia University
- Egypt
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17
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Eid K, Ahmad YH, Yu H, Li Y, Li X, AlQaradawi SY, Wang H, Wang L. Rational one-step synthesis of porous PtPdRu nanodendrites for ethanol oxidation reaction with a superior tolerance for CO-poisoning. NANOSCALE 2017; 9:18881-18889. [PMID: 29177288 DOI: 10.1039/c7nr07609f] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Precise fabrication of porous ternary Pt-based nanodendrites is very important for electrochemical energy conversion owing to high surface area and great molecular accessibility of these nanodendrites. Herein, PtPdRu porous nanodendrites (PNDs) were prepared via a facile one-step ultrasonic irradiation approach at room temperature. Intriguingly, the ultrasonic irradiation drove the formation of PtPdRu PNDs with spatially interconnected porous structures, whereas magnetic stirring produced PtPdRu nanoflowers (NFs) with less porosity. The formation mechanism was ascribed to the acoustic cavitation effect and fast-reduction kinetics under sonication. The as-made PtPdRu PNDs displayed a superior catalytic performance towards ethanol oxidation reaction with a high tolerance for CO-poisoning as compared to PtPdRu NFs, PtPd NDs, and commercial Pt/C catalyst.
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Affiliation(s)
- Kamel Eid
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha 2713, Qatar.
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Pd supported on carbon containing nickel, nitrogen and sulfur for ethanol electrooxidation. Sci Rep 2017; 7:15479. [PMID: 29133796 PMCID: PMC5684197 DOI: 10.1038/s41598-017-15060-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 10/06/2017] [Indexed: 11/12/2022] Open
Abstract
Carbon material containing nickel, nitrogen and sulfur (Ni-NSC) has been synthesized using metal-organic frameworks (MOFs) as precursor by annealing treatment with a size from 200 to 300 nm. Pd nanoparticles supported on the Ni-NSC (Pd/Ni-NSC) are used as electrocatalysts for ethanol oxidation in alkaline media. Due to the synergistic effect between Pd and Ni, S, N, free OH radicals can form on the surface of Ni, N and S atoms at lower potentials, which react with CH3CO intermediate species on the Pd surface to produce CH3COO− and release the active sites. On the other hand, the stronger binding force between Pd and co-doped N and S is responsible for enhancing dispersion and preventing agglomeration of the Pd nanoparticles. The Pd(20 wt%)/Ni-NSC shows better electrochemical performance of ethanol oxidation than the traditional commercial Pd(20 wt%)/C catalyst. Onset potential on the Pd(20 wt%)/Ni-NSC electrode is 36 mV more negative compared with that on the commercial Pd(20 wt%)/C electrode. The Pd(20 wt%)/Ni-NSC in this paper demonstrates to have excellent electrocatalytic properties and is considered as a promising catalyst in alkaline direct ethanol fuel cells.
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Lu B, Yao B, Roseman G, Deming CP, Lu JE, Millhauser GL, Li Y, Chen S. Ethanol Oxidation Reaction Catalyzed by Palladium Nanoparticles Supported on Hydrogen‐Treated TiO
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Nanobelts: Impact of Oxygen Vacancies. ChemElectroChem 2017. [DOI: 10.1002/celc.201700425] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bingzhang Lu
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz, California 95064 USA
| | - Bin Yao
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz, California 95064 USA
| | - Graham Roseman
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz, California 95064 USA
| | - Christopher P. Deming
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz, California 95064 USA
| | - Jia En Lu
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz, California 95064 USA
| | - Glenn L. Millhauser
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz, California 95064 USA
| | - Yat Li
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz, California 95064 USA
| | - Shaowei Chen
- Department of Chemistry and Biochemistry University of California 1156 High Street Santa Cruz, California 95064 USA
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Manganese Dioxide Coated Graphene Nanoribbons Supported Palladium Nanoparticles as an Efficient Catalyst for Ethanol Electrooxidation in Alkaline Media. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.04.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Proch S, Kodama K, Yoshino S, Takahashi N, Kato N, Morimoto Y. CO-Terminated Platinum Electrodeposition on Nb-Doped Bulk Rutile TiO2. Electrocatalysis (N Y) 2016. [DOI: 10.1007/s12678-016-0316-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhang L, Zhu S, Chang Q, Su D, Yue J, Du Z, Shao M. Palladium–Platinum Core–Shell Electrocatalysts for Oxygen Reduction Reaction Prepared with the Assistance of Citric Acid. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00517] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lulu Zhang
- Department
of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Shangqian Zhu
- Department
of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Qiaowan Chang
- Department
of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Dong Su
- Center
for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Jeffrey Yue
- Department
of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Zheng Du
- National Supercomputing
Center in Shenzhen, Shenzhen, Guangdong 518055, P.R. China
| | - Minhua Shao
- Department
of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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Mao J, Chen Z, Chen Y, Wang D, Li Y. Controllable synthesis of Pt–Cu nanocrystals and their tunable catalytic properties. CrystEngComm 2016. [DOI: 10.1039/c6ce00588h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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