Recent advances of nanoporous metal-based catalyst: synthesis, application and perspectives

Yao, Ruiqi; Lang, Xing‐You; Jiang, Qing

doi:10.1007/s42243-019-00298-8

Cited by 9 publications

(2 citation statements)

References 114 publications

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“…Nanoporous (NP) metals have raised considerable industrial and scientific interest because of functional properties such as high internal surface area, improved catalytic activity, and sensing capabilities [1,2]. The most famous example of NP metals is Raney nickel [3], which is used as a catalyst in organic chemistry.…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study on the Generation of Nanoporous Metal Structures by Means of Selective Alloy Depletion in Halogen-Rich Atmospheres

Weise,

Uhrlaub,

Lehmhus

et al. 2024

Materials

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A new approach to produce nanoporous metals has been investigated, which is based on the dealloying of bi- or multi-component alloys. Depletion and pore formation of the alloy substrate are obtained by the transport of certain alloy components at high temperatures via volatile halogen compounds. These halogen compounds are transferred to materials acting as sinks based on their higher affinity to the respective components, and chemically bound there. Transfer via volatile halogen compounds is known from the pack cementation coating process and from high-temperature corrosion in certain industrial atmospheres. The approach was tested on different precursor alloys: Ti-43.5Al-4Nb-1Mo-0.1B (TNM-B1), TiNb42, and AlCu. Both dealloying effects and micro-scale pore formation were observed. The detailed size of the porous structures is in the range of 50 nm for both TNM-B1 and TiNB42 and 500 nm for AlCu.

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Section: Introductionmentioning

confidence: 99%

Feasibility Study on the Generation of Nanoporous Metal Structures by Means of Selective Alloy Depletion in Halogen-Rich Atmospheres

Weise,

Uhrlaub,

Lehmhus

et al. 2024

Materials

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show abstract

“…Porous conductive materials have drawn great attention in electrochemistry, supercapacitor and microwave absorption fields [1][2][3] due to unique pore configuration, ultralight weight and conductivity [2,[4][5][6]. Traditional synthesis methods for conductive porous materials are summarized as the activation method which includes carbonized calcination [7][8][9], chemical, physical activation, catalytic activation [10][11][12] and aerogel preparation [13,14]. The porous materials obtained by carbonization or calcination are brittle, almost non-flexible and have poor mechanical properties, which limit their applications.…”

Section: Introductionmentioning

confidence: 99%