Simple wet-chemical synthesis of alloyed PdAu nanochain networks with improved electrocatalytic properties

He, Linghao; Song, Pei; Feng, Jiu‐Ju; Huang, Wenhua; Wang, Qiaoli; Wang, Ai‐Jun

doi:10.1016/j.electacta.2015.06.137

Cited by 38 publications

(12 citation statements)

References 58 publications

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“…Alloyed PdAu nanochain networks were prepared through a one-pot synthetic method by Wang and coworkers, and such networks exhibited superior ORR activity than Pd black catalyst [28]. Erikson et.…”

Section: Introductionmentioning

confidence: 99%

PdAu alloyed clusters supported by carbon nanosheets as efficient electrocatalysts for oxygen reduction

Yan

Tang

Wang

et al. 2017

International Journal of Hydrogen Energy

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PdAu alloyed clusters supported on carbon nanosheets were prepared and employed as efficient electrocatalysts for oxygen reduction reaction (ORR). PdAu clusters protected by glutathione were synthesized, while the structure and composition of the alloys were tuned through the variation of Pd-to-Au ratio. The PdAu clusters were loaded into carbon nanosheets and calcined at elevated temperature. The protecting ligands were completely removed after calcination, and uniform hybrid materials were formed. The as-prepared nanocomposites were characterized by transmission electron microscopy (TEM), scanning tunneling electron microscopy (STEM), X-ray photoelectron spectroscopy (XPS), X-ray

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Section: Introductionmentioning

confidence: 99%

PdAu alloyed clusters supported by carbon nanosheets as efficient electrocatalysts for oxygen reduction

Yan

Tang

Wang

et al. 2017

International Journal of Hydrogen Energy

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“…As a result, the separation of hydrogen could be restricted by adding Ni to Pd atoms. Those phenomena related with performance improvement of mass and specific activities were caused by synergetic effects between Ni and Pd, nanoscale particle size, and carbon support materials [ 92 , 93 ]. As a result, Pd–Ni/C has showed high possibilities than other catalysts in terms of activity, resistance to methanol, ORR efficiency, and stability [ 91 ].…”

Section: Non-pt Catalystsmentioning

confidence: 99%

Recent developments of nano-structured materials as the catalysts for oxygen reduction reaction

2018

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Developments of high efficient materials for electrocatalyst are significant topics of numerous researches since a few decades. Recent global interests related with energy conversion and storage lead to the expansion of efforts to find cost-effective catalysts that can substitute conventional catalytic materials. Especially, in the field of fuel cell, novel materials for oxygen reduction reaction (ORR) have been noticed to overcome disadvantages of conventional platinum-based catalysts. Various approaching methods have been attempted to achieve low cost and high electrochemical activity comparable with Pt-based catalysts, including reducing Pt consumption by the formation of hybrid materials, Pt-based alloys, and not-Pt metal or carbon based materials. To enhance catalytic performance and stability, numerous methods such as structural modifications and complex formations with other functional materials are proposed, and they are basically based on well-defined and well-ordered catalytic active sites by exquisite control at nanoscale. In this review, we highlight the development of nano-structured catalytic materials for ORR based on recent findings, and discuss about an outlook for the direction of future researches.

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“…demonstrated that the carbon monoxide played critical roles for the control of Pt‐based crystal morphology and growth due to the strong binding of carbon monoxide to Pt ,. On the other hand, the tailored design of Pt‐based nanochains have attracted special interest due to their unique anisotropic nature, improved chemical and physical properties such as low interfacial free energy, high surface area and electronic transmission rate ,. The Pt‐based nanochains are favorable to suppress the Ostwald ripening and the subsequent aggregation for improving their stabilities ,.…”

Section: Introductionmentioning

confidence: 99%

Carbon Monoxide‐Templated Synthesis of Coral‐Like Clean PtPd Nanochains as Efficient Oxygen Reduction Catalyst

Zhang

Gong

et al. 2018

ChemElectroChem

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Coral‐like, clean PtPd bimetallic nanochains with controlled composition are successfully synthesized by using carbon monoxide as reducing agent and soft‐template. The Pt74Pd26 nanochain catalyst exhibits a much more positive half‐wave potential than pure Pt nanochains (∼35 mV) and commercial Pt/C (∼30 mV) toward the oxygen reduction reaction. Meanwhile, oxygen reduction on the Pt74Pd26 electrode has only a 4 mV degradation in half‐wave potential over 5,000 cycling period, showing superior electrochemical stability. The enhanced performance could be due to the modified electronic structure (such as downshifted d‐band center and weakened bonding to oxygenated species) and the coral‐like nanochains with mesoporous structure and clean surface. This work may demonstrate a universal approach to facilitate screening of high‐efficiency catalysts for broad energy conversion/storage systems and sensing devices.

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Simple wet-chemical synthesis of alloyed PdAu nanochain networks with improved electrocatalytic properties

Cited by 38 publications

References 58 publications

PdAu alloyed clusters supported by carbon nanosheets as efficient electrocatalysts for oxygen reduction

PdAu alloyed clusters supported by carbon nanosheets as efficient electrocatalysts for oxygen reduction

Recent developments of nano-structured materials as the catalysts for oxygen reduction reaction

Carbon Monoxide‐Templated Synthesis of Coral‐Like Clean PtPd Nanochains as Efficient Oxygen Reduction Catalyst

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