Simple fabrication of core-shell AuPt@Pt nanocrystals supported on reduced graphene oxide for ethylene glycol oxidation and hydrogen evolution reactions

Shao, Fang-Qi; Lin, Xiaoxiao; Feng, Jiu‐Ju; Yuan, Junhua; Chen, Jianrong; Wang, Ai‐Jun

doi:10.1016/j.electacta.2016.09.158

Cited by 41 publications

(20 citation statements)

References 58 publications

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“…The release of the adsorbed carbon oxide derivatives prevents the poisoning of the electrode and thus enhances the overall electrode reaction yield because more free active sites on the electrode surface area available for newly delivered fuel molecules. Therefore, the higher the amount of oxygen-containing species on the surface of the electrode is, the better the CO poisoning immunity of the electrode and, consequently, the better the system performance [ 161 , 165 , 167 ].…”

Section: Electrooxidation Of Alcoholsmentioning

confidence: 99%

“…Most of the established technologies for DAFCs are based on anodes made of platinum and its alloys [ 31 , 85 , 91 , 108 , 144 , 163 , 167 , 168 , 169 , 170 , 171 ]. Because of their popularity, their manufacturing process is well established, and the control of the metal ratio, alloy level and surface morphology is possible [ 115 , 162 ].…”

Section: Electrooxidation Of Alcoholsmentioning

confidence: 99%

“…To minimize the harmful influence of reaction products on platinum electrodes, anodic materials are doped with additives that significantly increase their immunity to poisoning. The doping of platinum anodes with other metals leads to modification of Pt geometric and electronic structures by Pt–M interactions, where M can be Sn [ 15 , 91 , 144 , 168 ], Pd [ 88 ], Au [ 167 , 172 ], Ru [ 85 , 108 , 163 , 173 , 174 ], Ni [ 163 , 169 ], Pb [ 161 ], Bi [ 88 ], Co [ 171 ], etc. and thus to changes in catalytic activities [ 161 , 162 ].…”

Section: Electrooxidation Of Alcoholsmentioning

confidence: 99%

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Effect of Anode Material on Electrochemical Oxidation of Low Molecular Weight Alcohols—A Review

Wala

Simka

2021

Molecules

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The growing climate crisis inspires one of the greatest challenges of the 21st century—developing novel power sources. One of the concepts that offer clean, non-fossil electricity production is fuel cells, especially when the role of fuel is played by simple organic molecules, such as low molecular weight alcohols. The greatest drawback of this technology is the lack of electrocatalytic materials that would enhance reaction kinetics and good stability under process conditions. Currently, electrodes for direct alcohol fuel cells (DAFCs) are mainly based on platinum, which not only provides a poor reaction rate but also readily deactivates because of poisoning by reaction products. Because of these disadvantages, many researchers have focused on developing novel electrode materials with electrocatalytic properties towards the oxidation of simple alcohols, such as methanol, ethanol, ethylene glycol or propanol. This paper presents the development of electrode materials and addresses future challenges that still need to be overcome before direct alcohol fuel cells can be commercialized.

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Section: Electrooxidation Of Alcoholsmentioning

confidence: 99%

Section: Electrooxidation Of Alcoholsmentioning

confidence: 99%

Section: Electrooxidation Of Alcoholsmentioning

confidence: 99%

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Effect of Anode Material on Electrochemical Oxidation of Low Molecular Weight Alcohols—A Review

Wala

Simka

2021

Molecules

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“…In bimetallic systems, the introduction of a second metal generally gives a number of new effects: [188] 1) different Fermi levels of the two metals can lead to charge transfer and alter the electronic properties of the material; [189,190] and 2) the intimate interactions between the two components may affect the final size, shape and spatial arrangement of surface atoms, [191] which will further impact the catalyst performance. One good example of bimetallic catalysts is AuPt NMs, which have been discovered to be effective electrocatalysts in a series of applications such as ORR, [192–194] HER [195–197] and MOR [198–200] . However, precise control of the surface properties in such systems still presents a large challenge in bimetallic nanostructures.…”

Section: Applications Of Bio‐templated Mnms For Different Electrocatamentioning

confidence: 99%

Recent Advances in Bio‐Templated Metallic Nanomaterial Synthesis and Electrocatalytic Applications

et al. 2020

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Developing metallic nanocatalysts with high reaction activity, selectivity and practical durability is a promising and active subfield in electrocatalysis. In the classical “bottom‐up” approach to synthesize stable nanomaterials by chemical reduction, stabilizing additives such as polymers or organic surfactants must be present to cap the nanoparticle to prevent material bulk aggregation. In recent years, biological systems have emerged as green alternatives to support the uncoated inorganic components. One key advantage of biological templates is their inherent ability to produce nanostructures with controllable composition, facet, size and morphology under ecologically friendly synthetic conditions, which are difficult to achieve with traditional inorganic synthesis. In addition, through genetic engineering or bioconjugation, bio‐templates can provide numerous possibilities for surface functionalization to incorporate specific binding sites for the target metals. Therefore, in bio‐templated systems, the electrocatalytic performance of the formed nanocatalyst can be tuned by precisely controlling the material surface chemistry. With controlled improvements in size, morphology, facet exposure, surface area and electron conductivity, bio‐inspired nanomaterials often exhibit enhanced catalytic activity towards electrode reactions. In this Review, recent research developments are presented in bio‐approaches for metallic nanomaterial synthesis and their applications in electrocatalysis for sustainable energy storage and conversion systems.

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“…OH ad À ). 27,28 Therefore, the Au nanostructures at the LDH@AuNPs and AuNDs@LDH, in addition to the increase of electrical conductivity, can catalysis OER and HER. Moreover, since Au is the most electronegative metal, it affinities strongly the electrons of CuMgFe-LDH and thus facilitates the oxidation of the metal oxides.…”

Section: Effective Parametersmentioning

confidence: 99%

A gold nanodendrite-decorated layered double hydroxide as a bifunctional electrocatalyst for hydrogen and oxygen evolution reactions in alkaline media

2017

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Simple fabrication of core-shell AuPt@Pt nanocrystals supported on reduced graphene oxide for ethylene glycol oxidation and hydrogen evolution reactions

Cited by 41 publications

References 58 publications

Effect of Anode Material on Electrochemical Oxidation of Low Molecular Weight Alcohols—A Review

Effect of Anode Material on Electrochemical Oxidation of Low Molecular Weight Alcohols—A Review

Recent Advances in Bio‐Templated Metallic Nanomaterial Synthesis and Electrocatalytic Applications

A gold nanodendrite-decorated layered double hydroxide as a bifunctional electrocatalyst for hydrogen and oxygen evolution reactions in alkaline media

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