Ultrathin rhodium nanosheet–gold nanowire nanocomposites for alkaline methanol oxidation reaction

Sun, Baode; Wang, Zhe; Yuan, Zihan; Ding, Yu; Li, Fu-Min; Zhao, Guangtao; Li, Dong‐Sheng; Li, Xifei; Chen, Yu

doi:10.1039/d2cc04762d

Cited by 1 publication

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“…However, the widespread use of Pt-based catalysts is always a problem as they are expensive and easily poisoned by CO molecules. 43,44 45 Chen's research group designed ultrathin rhodium nanosheet−gold nanowire nanocomposites that were employed for methanol oxidation reaction. The RhAu nanocomposite showed a mass activity better than the pure Rh and Au nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…Chen’s research group designed ultrathin rhodium nanosheet–gold nanowire nanocomposites that were employed for methanol oxidation reaction. The RhAu nanocomposite showed a mass activity better than the pure Rh and Au nanoparticles . In addition, one-dimensional rhodium-nickel alloy was fabricated by Chen’s group for methanol oxidation reaction.…”

Section: Introductionmentioning

confidence: 99%

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Bio-assisted Synthesis of Au/Rh Nanostructure Electrocatalysts for Hydrogen Evolution and Methanol Oxidation Reactions: Composition Matters!

Biswas,

Dastider,

Ahmed

et al. 2023

Energy Fuels

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In the field of catalysis, bimetallic nanostructures have attracted much interest. Here, we discuss the effect of Au/Rh bimetallic composition-tuned nanostructure and electrocatalytic activity. A simple bio-assisted technique was used to fabricate multiple Au:Rh nanoplate ratios (25:75, 50:50, and 75:25). XRD and XPS studies show that both Au and Rh phases coexist in a bimetallic nanostructure, and electron microscopy confirms the formation of a triangle-shaped nanoplate. Au0.25Rh0.75 exhibited the maximum catalytic activity and good stability for hydrogen evolution reaction (HER) with an overpotential of 105 mV at a current density of 10 mA/cm2. On the other hand, Au0.50Rh0.50 exhibits a higher activity for methanol oxidation reaction (MOR) compared to the other compositions. Theoretical studies indicate that the electrocatalytic enhancement obtained for both HER and MOR relies on electronic modification effects of the surface, with the overall reaction energy profile being optimized due to Au/Rh d-band mixing.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bio-assisted Synthesis of Au/Rh Nanostructure Electrocatalysts for Hydrogen Evolution and Methanol Oxidation Reactions: Composition Matters!

Biswas,

Dastider,

Ahmed

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

show abstract

Ultrathin rhodium nanosheet–gold nanowire nanocomposites for alkaline methanol oxidation reaction

Abstract: The electrostatically assembled ultrathin rhodium nanosheets-gold nanowires nanocomposites (Rh-Au CNSs) were used as an advanced electrocatalyst for methanol oxidation reaction, which revealed a mass activity of 355 mA mgRh−1 at...

Cited by 1 publication

References 32 publications

Bio-assisted Synthesis of Au/Rh Nanostructure Electrocatalysts for Hydrogen Evolution and Methanol Oxidation Reactions: Composition Matters!

Bio-assisted Synthesis of Au/Rh Nanostructure Electrocatalysts for Hydrogen Evolution and Methanol Oxidation Reactions: Composition Matters!

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