Pt nanoparticles modified Au dendritic nanostructures: Facile synthesis and enhanced electrocatalytic performance for methanol oxidation

Jia, Hongmei; Chang, Gang; Shu, Honghui; Xu, Miao; Wang, Xunying; Zhang, Zaoli; Liu, Xiong; He, Hanping; Wang, Kai; Zhu, Ruizhi; He, Yunbin

doi:10.1016/j.ijhydene.2017.01.218

Cited by 23 publications

(9 citation statements)

References 42 publications

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“…By far, such bimetallic materials have been controllably synthesized into a variety of structures ( Figure ), including PtPd alloy nanocubes, [ 79 ] hollow porous PtPd alloy nanospheres, [ 80 ] mesoporous Pd@Pt microrods, [ 81 ] hollow PtAg alloy nanospheres, [ 82 ] uniform dendrite‐like PtAu porous nanoclusters, [ 83 ] and Pt nanoparticles modified Au dendritic nanostructures. [ 84 ]…”

Section: Noble Metal‐based Catalystsmentioning

confidence: 99%

“…By far, such bimetallic materials have been controllably synthesized into a variety of structures (Figure 7), including PtPd alloy nanocubes, [79] hollow porous PtPd alloy nanospheres, [80] mesoporous Pd@Pt microrods, [81] hollow PtAg alloy nanospheres, [82] uniform dendrite-like PtAu porous nanoclusters, [83] and Pt nanoparticles modified Au dendritic nanostructures. [84] Among the various delicate nanostructures, some rationally designed complex structures have been recently reported and attracted substantial attention for their enhanced MOR performance. For example, a series of Pd-Pt core-shell polyhedron catalysts with unique concave feature and ultrathin Pt shell were synthesized via a one-pot and seed-free method.…”

Section: Pt-based Noble-metal Catalystsmentioning

confidence: 99%

“…Furthermore, the superior stability of Ru@Pt0. nanocubes, [79] hollow porous PtPd alloy nanospheres, [80] mesoporous Pd@Pt microrods, [81] hollow PtAg alloy nanospheres, [82] uniform dendrite-like PtAu porous nanoclusters, [83] and Pt nanoparticles modified Au dendritic nanostructures [84] .…”

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confidence: 99%

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Metal‐Based Electrocatalysts for Methanol Electro‐Oxidation: Progress, Opportunities, and Challenges

Tong

Yan

Liang

et al. 2019

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Direct methanol fuel cells (DMFCs) are among the most promising portable power supplies because of their unique advantages, including high energy density/mobility of liquid fuels, This article is protected by copyright. All rights reserved. 2 low working temperature, and low emission of pollutants. Various metal-based anode catalysts have been extensively studied and utilized for the essential methanol oxidation reaction (MOR), due to their superior electrocatalytic performance. At present, especially with the rapid advance of nanotechnology, enormous efforts have been exerted to further enhancing the catalytic performance and minimizing the use of precious metals. Constructing multicomponent metal-based nanocatalysts with precisely designed structures can achieve this goal by providing highly tunable compositional and structural characteristics, which is promising for the modification and optimization of their related electrochemical properties. The recent advances of the metal-based electrocatalytic materials with rationally designed nanostructures and chemistries for MOR in DMFCs are highlighted and summarized herein. The effects of the well-defined nanoarchitectures on the improved electrochemical properties of the catalysts are illustrated. Finally, conclusive perspectives are provided on the opportunities and challenges for further refining the nanostructure of the metal-based catalysts and improving the electrocatalytic performance, as well as the commercial viability.

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Section: Noble Metal‐based Catalystsmentioning

confidence: 99%

Section: Pt-based Noble-metal Catalystsmentioning

confidence: 99%

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Metal‐Based Electrocatalysts for Methanol Electro‐Oxidation: Progress, Opportunities, and Challenges

Tong

Yan

Liang

et al. 2019

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“… Much improved in poisoning tolerance. [ 72 ] PtSn 5.2 nm Impregnation The potential of PtSn/C-PANI was tested in a DMFC cell which showed lower methanol crossover by 30%. Higher in durability as compare to PtRu/C.…”

Section: Performance Of Various Types Of Pt-based Catalystsmentioning

confidence: 99%

“…Thus, some efforts are needed to overcome the problem related to the formation of poisonous species on the Pt particles surface, so that they do not cover up the active site areas of Pt. Generally, binary alloys, such as PtRu [ 62 – 66 ], PtRh [ 67 – 71 ], PtAu [ 72 – 74 ], PtSn [ 62 , 63 , 75 – 77 ], PtNi [ 64 – 69 ], PtCo [ 70 , 71 , 78 – 80 ], and PtFe [ 81 – 85 ], are frequently employed as electrocatalyst combinations for the anode electrode in DMFC system. The additions of these metals, such as ruthenium (Ru), tin (Sn), and rhodium (Rh), are believed to produce higher catalytic activity.…”

Section: Performance Of Various Types Of Pt-based Catalystsmentioning

confidence: 99%

Platinum-Based Catalysts on Various Carbon Supports and Conducting Polymers for Direct Methanol Fuel Cell Applications: a Review

2018

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Platinum (Pt)-based nanoparticle metals have received a substantial amount of attention and are the most popular catalysts for direct methanol fuel cell (DMFC). However, the high cost of Pt catalysts, slow kinetic oxidation, and the formation of CO intermediate molecules during the methanol oxidation reaction (MOR) are major challenges associate with single-metal Pt catalysts. Recent studies are focusing on using either Pt alloys, such as Fe, Ni, Co, Rh, Ru, Co, and Sn metals, or carbon support materials to enhance the catalytic performance of Pt. In recent years, Pt and Pt alloy catalysts supported on great potential of carbon materials such as MWCNT, CNF, CNT, CNC, CMS, CNT, CB, and graphene have received remarkable interests due to their significant properties that can contribute to the excellent MOR and DMFC performance. This review paper summaries the development of the above alloys and support materials related to reduce the usage of Pt, improve stability, and better electrocatalytic performance of Pt in DMFC. Finally, discussion of each catalyst and support in terms of morphology, electrocatalytic activity, structural characteristics, and its fuel cell performance are presented.

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Facile and Surfactant‐Free Routed Spherical Au@Pt Core–Shell–Satellite Nanoparticles as High‐Efficient and Stable Electrocatalyst for Methanol Oxidation

et al. 2022

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electrocatalyst for methanol oxidation reactions (MORs), has been considerably investigated. [2] However, toxic intermediate products such as CO produced in the catalytic oxidation process are easily adsorbed on the surface of Pt catalysts, leading to decreased electrocatalytic activity and low stability. Additionally, the high cost and scarcity of Pt heavily impede its widespread application. [3] To enhance the utilization efficiency and catalytic capability of Pt, other metals, such as Ag, [4] Pd, [5] Ni, [6] Cu, [7] and Au, [8] have been incorporated into Pt nanoparticles (NPs) to form bimetallic nanostructures by constructing core-shell or alloy nanostructures. In particular, Au NPs can effectively adsorb and activate surface oxygen species and promote the interaction between active oxygen and CO-like intermediates, thus increasing the stability of catalysts during the catalytic oxidation reaction. [8a,b] Consequently, Au-Pt bimetallic nanostructures are supposed to possess excellent synergistic catalytic effects for the MOR. [9] Recently, Au@Pt core-shell bimetallic nanostructures composed of an Au inner core and a thin Pt outer shell have become highly attractive for MORs because of the advantages of synergistic effects between Au and Pt, large surface areas, and high stability, resulting in a higher Pt utilization rate and catalytic performance. [10] However, most Au@Pt coreshell NPs are usually synthesized through solvothermal,

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Pt nanoparticles modified Au dendritic nanostructures: Facile synthesis and enhanced electrocatalytic performance for methanol oxidation

Cited by 23 publications

References 42 publications

Metal‐Based Electrocatalysts for Methanol Electro‐Oxidation: Progress, Opportunities, and Challenges

Metal‐Based Electrocatalysts for Methanol Electro‐Oxidation: Progress, Opportunities, and Challenges

Platinum-Based Catalysts on Various Carbon Supports and Conducting Polymers for Direct Methanol Fuel Cell Applications: a Review

Facile and Surfactant‐Free Routed Spherical Au@Pt Core–Shell–Satellite Nanoparticles as High‐Efficient and Stable Electrocatalyst for Methanol Oxidation

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