One-pot fabrication of single-crystalline octahedral Pt–Cu nanoframes and their enhanced electrocatalytic activity

Nosheen, Farhat; Zhang, Zhicheng; Zhuang, Jing; Wang, Xun

doi:10.1039/c3nr00833a

Cited by 117 publications

(120 citation statements)

References 30 publications

(34 reference statements)

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“…This is indeed true in Pt‐Cu NF 141, 142. As depicted in Figure 9a, the pristine cyclic voltammogram (CV) curve shows no under potential H ad/desorption peaks (‐0.24–0.1V), due to the Cu coverage on the surface.…”

Section: Novel Structures and Atypical Edgesmentioning

confidence: 60%

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Face the Edges: Catalytic Active Sites of Nanomaterials

Wang

2015

Advanced Science

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156

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Edges are special sites in nanomaterials. The atoms residing on the edges have different environments compared to those in other parts of a nanomaterial and, therefore, they may have different properties. Here, recent progress in nanomaterial fields is summarized from the viewpoint of the edges. Typically, edge sites in MoS2 or metals, other than surface atoms, can perform as active centers for catalytic reactions, so the method to enhance performance lies in the optimization of the edge structures. The edges of multicomponent interfaces present even more possibilities to enhance the activities of nanomaterials. Nanoframes and ultrathin nanowires have similarities to conventional edges of nanoparticles, the application of which as catalysts can help to reduce the use of costly materials. Looking beyond this, the edge structures of graphene are also essential for their properties. In short, the edge structure can influence many properties of materials.

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Section: Novel Structures and Atypical Edgesmentioning

confidence: 60%

“…PtCu 3 NFs would be fabricated in similar way 141. However, the details still need to be further explored because similar PtCu 3 can be generated in quite different conditions (Figure 9a) 142. Ag‐Au octahedra NFs could be achieved in a two‐step process 143.…”

Section: Novel Structures and Atypical Edgesmentioning

confidence: 99%

Face the Edges: Catalytic Active Sites of Nanomaterials

Wang

2015

Advanced Science

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156

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“…At last, ethanolamine (ETA) was added into such system, then octahedral frameworks with only edges along [111] directions were the products. 27 Meanwhile in the searching of intermediates, we didn't find corresponding solid structures like regular octahedrons. It seems that CuCl 2 and NaI are responsible for the etching and branching, while the combination of amino acid and ETA would lead to the stabilization of edges along [111] directions.…”

Section: Several Intricate Pt-cu Alloy Architectures Have Been Synthementioning

confidence: 99%

Facile synthesis of complex shaped Pt–Cu alloy architectures

Nosheen

et al. 2016

Nanoscale

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“…A great improvement in this area has been feasible with facet‐controlled nanoparticles and core–shell nanoparticles with lattice mismatch, which enables surface‐energy modulations 10, 11, 12, 13, 14, 15, 16, 17. Most notably, phenomenal enhancement in catalytic performance has been accomplished by framework nanostructures with dramatically increased surface area per volume, and a great deal of current interest resides on the design and synthesis of novel nanoframework structures 18, 19, 20, 21, 22, 23. Pt‐based alloy nanoframeworks constitute a majority of nanoframeworks and the application of these nanostructures is mostly confined to the fuel cell electrode oxygen reduction reaction (ORR) 24, 25, 26, 27.…”

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confidence: 99%