Cobalt nanoparticles immobilized in 3D mesoporous silica KIT-6 for excellent catalytic hydrogen generation from ammonia borane

2017 ◽  
Vol 06 (03) ◽  
Author(s):  
Mu-Hsin Lee
Keyword(s):  
Mesoporous Silica ◽  
Hydrogen Generation ◽  
Ammonia Borane ◽  
Cobalt Nanoparticles ◽  
Catalytic Hydrogen

scholarly journals Ru Nanoparticles Embedded in Cubic Mesoporous Silica SBA-1 as Highly Efficient Catalysts for Hydrogen Generation from Ammonia Borane

Catalysts ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 267 ◽  
Author(s):  
Juti Rani Deka ◽  
Diganta Saikia ◽  
Kuo-Shu Hsia ◽  
Hsien-Ming Kao ◽  
Yung-Chin Yang ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Active Sites ◽  
Hydrogen Generation ◽  
Ammonia Borane ◽  
High Dispersion ◽  
High Catalytic Activity ◽  
Porous Support ◽  
H2 Generation ◽  
Ru Nanoparticles ◽  
Cubic Mesoporous

Cubic mesoporous silica SBA-1 functionalized with carboxylic acid (-COOH), namely S1B-C10, is used as a support to fabricate and confine Ru nanoparticles (NPs). The uniformly dispersed organic functional groups in SBA-1 are beneficial in attracting Ru cations, and as a result, homogenously distributed small sized Ru NPs are formed within the mesopores. The prepared Ru@S1B-C10 is utilized as a catalyst for H2 generation from the hydrolysis of ammonia borane (AB). The Ru@S1B-C10 catalyst demonstrates high catalytic activity for H2 generation (202 mol H2 molRu min−1) and lower activation energy (24.13 kJ mol−1) due to the small sized Ru NPs with high dispersion and the support’s interconnected mesoporous structure. The nanosized Ru particles provide abundant active sites for the catalytic reaction to take place, while the interconnected porous support facilitates homogenous transference and easy dispersal of AB molecules to the active sites. The catalyst demonstrates good recycle ability since the accumulation and leaking of NPs throughout catalysis can be effectively prevented by the support.

Nanostructured palladium/polypyrrole composite paper for enhanced catalytic hydrogen generation from ammonia borane

2016 ◽  
Vol 41 (20) ◽  
pp. 8470-8478 ◽  
Author(s):  
Qiao Wang ◽  
Zhiquan Liu ◽  
Wei Wang ◽  
Dongmei Liu ◽  
Wenxin Shi ◽  
...  
Keyword(s):  
Hydrogen Generation ◽  
Ammonia Borane ◽  
Catalytic Hydrogen ◽  
Polypyrrole Composite ◽  
Composite Paper

Mesoporous silica nanosphere supported platinum nanoparticles (Pt@MSN): one-pot synthesis and catalytic hydrogen generation

RSC Advances ◽  
2016 ◽  
Vol 6 (13) ◽  
pp. 10438-10441 ◽  
Author(s):  
Maria Irum ◽  
Muhammad Zaheer ◽  
Martin Friedrich ◽  
Rhett Kempe
Keyword(s):  
Mesoporous Silica ◽  
Sodium Borohydride ◽  
Platinum Nanoparticles ◽  
Hydrogen Generation ◽  
One Pot ◽  
One Pot Synthesis ◽  
Supported Platinum ◽  
Catalytic Hydrogen ◽  
Silica Nanosphere

One-pot synthesis of mesoporous silica nanosphere (MSN) supported platinum nanoparticles (NPs) as catalysts for hydrogen generation from alkaline sodium borohydride is reported.

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