High electrocatalytic performance of a graphene-supported PtAu nanoalloy for methanol oxidation

Chang, Gang; Cai, Zhiwei; Jia, Hongmei; Zhang, Zaoli; Liu, Xiong; Liu, Zhihua; Zhu, Ruizhi; He, Yunbin

doi:10.1016/j.ijhydene.2018.04.116

Cited by 41 publications

(14 citation statements)

References 43 publications

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“…In addition to the above preparation methods, there are other new preparation methods. Fan and his colleagues [155] reported a one‐pot hydrothermal synthesis of porous Pt−Cu alloy networks using block copolymer Pluronic‐F127 as a structure‐directing agent. It can be seen from its SEM that the prepared Pt−Cu alloy had a unique three‐dimensional layered porous network structure with many interconnected nanodendrites.…”

Section: Novel Preparation Methods For Catalysts In Mormentioning

confidence: 99%

“…Up to now, there were various methods to prepare PtAu/graphene nanocomposites for MOR, [84] among them, the one‐step electrodeposition method had strong point to obtain 3 D porous nanostructures and it did not need harsh conditions, template and so on. Chang et al [85] . synthesized PtAu nanoalloy (PtAuNA/G) fixed on graphene and measured the catalyst performance.…”

Section: Classification Of Catalystsmentioning

confidence: 99%

“…Up to now, there were various methods to prepare PtAu/graphene nanocomposites for MOR, [84] among them, the one-step electrodeposition method had strong point to obtain 3 D porous nanostructures and it did not need harsh conditions, template and so on. Chang et al [85] synthesized PtAu nanoalloy (PtAuNA/G) fixed on graphene and measured the catalyst performance. Based on the results of chronoamperometry Figure 4a and cyclic voltammetry Figure 4b, it was found that PtAuNA/G can effectively catalyze for MOR in an alkaline medium, and the activity was significantly improved (7.268 mA/cm 2 , 3.38 times than Pt/C NPs, 1.894 mA/cm 2 ), as well as significantly improved toxic tolerance (PtAuNA/G (15 min) showed the highest initial potential and final current density, which indicated that it had good antitoxicity, and it also had excellent catalytic activity).…”

Section: Other Pt Based Catalystsmentioning

confidence: 99%

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Research Progress on Catalysts for the Electrocatalytic Oxidation of Methanol

Ding

Dong

Tang³

2020

ChemistrySelect

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The methanol oxidation reaction has high energy density and the product is non-toxic and harmless (CO 2 , H 2 O), making it become one of the targets of new fuel energy. To maximize the efficiency of the reaction, its key lies in the development of highly efficient catalysts. In this paper, we reviewed the types of methanol electrocatalytic oxidation catalysts in recent years, some new preparation methods, and the reaction mechanism of different types of catalyst systems, and discussed their structure-activity relationships, laying the foundation for the development of highly efficient new catalysts in the future. And this paper is included on the types of catalysts (Pt-based catalyst, Ni-based catalyst, and other transition metal-based catalyst) and preparation methods (Reduction method, sol-gel method, in-situ method), and discussed the catalytic mechanism which mainly starts from two aspects, one is adsorptiondesorption, the other is the bond between the catalyst, methanol, and the medium. Finally, the future challenges and opportunities of the electrocatalytic oxidation of methanol are discussed.

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Section: Novel Preparation Methods For Catalysts In Mormentioning

confidence: 99%

Section: Classification Of Catalystsmentioning

confidence: 99%

Section: Other Pt Based Catalystsmentioning

confidence: 99%

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Research Progress on Catalysts for the Electrocatalytic Oxidation of Methanol

Ding

Dong

Tang³

2020

ChemistrySelect

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“…However, Cuesta et al concluded that the formation of CO is completely reticent on the surface of cyanide-modified Pt(111) electrodes, representing that two contiguous Pt atoms cannot meet the demand of dehydrogenation reaction, as at least three adjacent Pt atoms are required for this process. 11,[72][73][74][75][76] Pt electrocatalytic response toward methanol oxidation can be improved by the incorporation of other metals. Latest studies reveal the outcome of the ruthenium addition to Pt-catalyst for methanol oxidation.…”

Section: Platinum and Platinum-based Compoundsmentioning

confidence: 99%

Recent progress in development of efficient electrocatalyst for methanol oxidation reaction in direct methanol fuel cell

2020

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The human craving for energy is continually mounting and becoming progressively difficult to Gratify. At present, the world's massive energy demands are chiefly encountered by nonrenewable and benign fossil fuels. However, the development of dynamic energy cradles for a gradually thriving world to lessen fossil fuel reserve depletion and environmental concerns are persistent issues for society at present. The discovery of copious nonconventional resources to fill the gap between energy petition and supply is the extreme obligation of the modern era. A new emergent, clean, and robust alternate of fossil fuels are the fuel cells. Among the different types of fuel cells, direct methanol fuel cells are an outstanding option for light-duty vehicles and portable devices. A critical tactic for striving and sustainable energy sources is the production of highly proficient, economical, and green catalysts for energy storage and conversion devices. Up till now a broad range of research work is available to use Pt and modify Ptbased electrocatalysts to augment the CH 3 OH oxidation process. Platinum-based nanocubes, nanorods, nanoflower, hybrids of Pt with metal-oxides such as Fe 2 O 3 , TiO 2 , SnO 2 , MnO, Cu 2 O, ZnO, and with conducting polymers are extensively utilized in both acidic and basic media. Moreover, Pd-based materials, transition metal-based materials as well as MOF and MOF-derived materials are also the point of interest for researchers nowadays. However, the problem associated with their practical applications is that they can be effectively employed in basic media due to comparative less stability in acidic medium. This review article will deliver a broad vision of the current progress of the MOR process concerning noble metals, transition metals, and MOF-based materials.

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“…Responding to these challenges a series of cost-effective and less susceptible towards CO ads poisoning catalysts have been developed. Instead of the pure Pt bimetallic systems, containing the second less expensive metal, and thus the lower Pt loading, such as Pt-Ru [6][7][8][9][10][11], Pt-Au [12,13] and Pt-Pd [14][15][16], have been developed. Similarly, Pt alloying with non-noble (transition) metals, such as Co [17,18], Ni [17], Cu [17], Fe [19], Mn [20], Sn [20,21], Zn [20], etc., facilitated further creating of cheaper catalysts.…”

Section: Introductionmentioning

confidence: 99%

Investigation of methanol electro-oxidation on graphene supported platinum–tungsten catalyst

Kilmonis¹,

Nacys²,

Šimkūnaitė³

et al. 2019

chemija

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The graphene (GR) supported platinum–tungsten (PtW) catalysts with Pt:W molar ratios, equal to 1.6:1, 2.3:1 and 7.1:1, were prepared by a rapid microwave-assisted heating method. The activity of the catalysts was investigated for the electro-oxidation of methanol in an alkaline medium by means of cyclic voltammetry (CV) and chronoamperometry (CA). It has been determined that the rate of methanol oxidation depends on the Pt:W molar ratio in the PtW/GR catalysts. From the CV measurements it follows that the highest current density values, specific and mass activities are obtained for the PtW/GR catalyst with the Pt:W molar ratio equal to 1.6:1. Similarly, the chronoamperometry measurements point to the best performance of the PtW/GR catalyst with the same Pt:W molar ratio. Moreover, in all cases the synthesized PtW/GR catalysts, regardless of different Pt:W molar ratio, show an enhanced electrocatalytic activity towards the direct electro-oxidation of methanol when compared with that for the bare Pt/GR and W/GR catalysts.

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High electrocatalytic performance of a graphene-supported PtAu nanoalloy for methanol oxidation

Cited by 41 publications

References 43 publications

Research Progress on Catalysts for the Electrocatalytic Oxidation of Methanol

Research Progress on Catalysts for the Electrocatalytic Oxidation of Methanol

Recent progress in development of efficient electrocatalyst for methanol oxidation reaction in direct methanol fuel cell

Investigation of methanol electro-oxidation on graphene supported platinum–tungsten catalyst

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