Synthesis and electrocatalytic activity of Au@Pd core-shell nanothorns for the oxygen reduction reaction

Fu, Gengtao; Liu, Zhenyuan; Chen, Yu; Lin, Jun; Tang, Yawen; Lu, Tianhong

doi:10.1007/s12274-014-0483-2

Cited by 121 publications

(52 citation statements)

References 43 publications

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“…Growing energy demands have stimulated intensive research of alternative energy production and storage systems with high efficiency, low cost, and environment benignity [1][2][3][4][5][6][7][8][9][10]. Hydrogen production from water splitting can play a pivotal role in overcoming the challenges of increasing energy demands [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Bifunctional catalysts of Co3O4@GCN tubular nanostructured (TNS) hybrids for oxygen and hydrogen evolution reactions

Tahir

Mahmood

Zhang³

et al. 2015

Nano Res.

133

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Catalysts for oxygen and hydrogen evolution reactions (OER/HER) are at the heart of renewable green energy sources such as water splitting. Although incredible efforts have been made to develop efficient catalysts for OER and HER, great challenges still remain in the development of bifunctional catalysts. Here, we report a novel hybrid of Co 3 O 4 embedded in tubular nanostructures of graphitic carbon nitride (GCN) and synthesized through a facile, large-scale chemical method at low temperature. Strong synergistic effects between Co 3 O 4 and GCN resulted in excellent performance as a bifunctional catalyst for OER and HER. The high surface area, unique tubular nanostructure, and composition of the hybrid made all redox sites easily available for catalysis and provided faster ionic and electronic conduction. The Co 3 O 4 @GCN tubular nanostructured (TNS) hybrid exhibited the lowest overpotential (0.12 V) and excellent current density (147 mA/cm 2 ) in OER, better than benchmarks IrO 2 and RuO 2 , and with superior durability in alkaline media. Furthermore, the Co 3 O 4 @GCN TNS hybrid demonstrated excellent performance in HER, with a much lower onset and overpotential, and a stable current density. It is expected that the Co 3 O 4 @GCN TNS hybrid developed in this study will be an attractive alternative to noble metals catalysts in large scale water splitting and fuel cells.

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Section: Introductionmentioning

confidence: 99%

Bifunctional catalysts of Co3O4@GCN tubular nanostructured (TNS) hybrids for oxygen and hydrogen evolution reactions

Tahir

Mahmood

Zhang³

et al. 2015

Nano Res.

133

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“…At an applied potential of 0.90 V the J MA values of Pd-CN x composite (86.68 mAmg À1 ) were at least 3.45 and 5.29 times higher than that of Pt/C and Pd/C catalysts respectively whereas, at 0.85 V, J MA of Pd-CN x was~4.5 times higher than Pt/C or Pd/C. The J MA and J SA of Pd-CNx composite was not only higher than commercial Pt/C or Pd/C catalyst but also comparable or sometimes slight lower than the different reported catalysts [49,50]. Although Pd-CN x catalyst has slightly higher ECSA, the specific activity of Pd-CN x composite at all potentials is also much higher than that of Pd/C or Pt/C catalyst.…”

Section: Orr Activity On Porous Pd-cn X Composite In Basic Mediummentioning

confidence: 64%

Highly active and durable Pd nanoparticles-porous graphitic carbon nitride composite for electrocatalytic oxygen reduction reaction

Bhowmik

Kundu

Barman

2016

International Journal of Hydrogen Energy

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“…In the case of noble metal nanoparticles, no methods for the controlled synthesis of porous nanostructures have been established owing to the need for reducing-agent-mediated synthetic strategies and the importance of crystallinity. Nonetheless, because of the extremely high surface-to-volume ratios and structural advantages of porous nanostructures, the development of new synthetic methods for noble metals has been a subject of increasing interest [200][201][202][203][204][205][206][207][208][209][210][211]. The synthesis of porous Au nanoparticles using Ag nanospheres was first achieved through an extended synthetic strategy called inhibitory galvanic replacement.…”

Section: Porous Nanostructuresmentioning

confidence: 99%

Recent Advances in Nanoparticle Shape and Composition Regulation Based on Galvanic Replacement for Cancer Treatment

Shin¹,

Kang²,

Jang³

2018

Preprint

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Owing to their unique physicochemical properties, nanoparticles are used in a variety of ways in the field of cancer treatment, including imaging, drug delivery, and photothermal and photodynamic therapies. The fascinating properties of nanoparticles are determined by their size, morphology, and constituent elements, and various synthetic methods and post-synthetic techniques have been applied to control these factors. Herein, we present examples of shape and composition control through galvanic replacement, a technique that exploits redox potential differences between elements to induce spontaneous ion-exchange and highlight its specific contributions to cancer treatment applications. The present article identifies the recent advances in nanoparticle formation techniques and discusses the future outlook of the field.

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Synthesis and electrocatalytic activity of Au@Pd core-shell nanothorns for the oxygen reduction reaction

Cited by 121 publications

References 43 publications

Bifunctional catalysts of Co3O4@GCN tubular nanostructured (TNS) hybrids for oxygen and hydrogen evolution reactions

Bifunctional catalysts of Co3O4@GCN tubular nanostructured (TNS) hybrids for oxygen and hydrogen evolution reactions

Highly active and durable Pd nanoparticles-porous graphitic carbon nitride composite for electrocatalytic oxygen reduction reaction

Recent Advances in Nanoparticle Shape and Composition Regulation Based on Galvanic Replacement for Cancer Treatment

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