Gels and Aerogels From Colloidal Nanocrystals

Gaponik, Nikolai; Wolf, Andreas; Marx, Romy; Lesnyak, Vladimir; Eychmüller, Alexander; Schilling, Kristian

doi:10.1142/9789814280365_0079

Physics, Chemistry and Application of Nanostructures 2009

DOI: 10.1142/9789814280365_0079

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Gels and Aerogels From Colloidal Nanocrystals

Nikolai Gaponik¹,

Andreas Wolf²,

Romy Marx³

et al.

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“…[5] Meanwhile,our group has reported on aseries of pure and mixed aerogels (made of noble metals,s emiconductors,a nd quantum dots). [6] Thea erogels reported up to now have shown great application potential in the areas of catalysis,energy storage,and thermoresistors. [7] However,the applications of these aerogels,i np articular the metal-based aerogels,l ag far behind the plethora of preparations.…”

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Function‐Led Design of Aerogels: Self‐Assembly of Alloyed PdNi Hollow Nanospheres for Efficient Electrocatalysis

et al. 2015

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One plausible approach to endow aerogels with specific properties while preserving their other attributes is to fine-tune the building blocks. However, the preparation of metallic aerogels with designated properties, for example catalytically beneficial morphologies and transition-metal doping, still remains a challenge. Here, we report on the first aerogel electrocatalyst composed entirely of alloyed PdNi hollow nanospheres (HNSs) with controllable chemical composition and shell thickness. The combination of transition-metal doping, hollow building blocks, and the three-dimensional network structure make the PdNi HNS aerogels promising electrocatalysts for ethanol oxidation. The mass activity of the Pd83 Ni17 HNS aerogel is 5.6-fold higher than that of the commercial Pd/C catalyst. This work expands the exploitation of the electrocatalysis properties of aerogels through the morphology and composition control of its building blocks.

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confidence: 99%

Function‐Led Design of Aerogels: Self‐Assembly of Alloyed PdNi Hollow Nanospheres for Efficient Electrocatalysis

et al. 2015

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Gels and Aerogels From Colloidal Nanocrystals

Cited by 1 publication

References 0 publications

Function‐Led Design of Aerogels: Self‐Assembly of Alloyed PdNi Hollow Nanospheres for Efficient Electrocatalysis

Function‐Led Design of Aerogels: Self‐Assembly of Alloyed PdNi Hollow Nanospheres for Efficient Electrocatalysis

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