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Transition metal nanoparticles as catalyst in hydrogen generation from the boron based hydrogen storage materials
Date
2013-01-01
Author
Özkar, Saim
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URI
https://hdl.handle.net/11511/84846
Relation
New and Future Developments in Catalysis Batteries Hydrogen Storage and Fuel Cells
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Department of Chemistry, Book / Book chapter
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Transition metal nanoparticles as catalyst in hydrogen generation from boron based compounds
Zahamkiran, Mehmet; Metin, Önder; Ayvali, Tugce; Dinc, Melek; Özkar, Saim (2011-08-25)
Here, we present that transition metal(0) nanoparticles can be employed as highly active, long-lived and reusable catalyst in hydrogen generation from the boron based hydrogen storage materials for fuel cell applications. Transition metal(0) nanoparticles were prepared from the reduction of respective precursor in the presence of anionic or polymeric stabilizer. All the transition metal(0) nanoparticles (Fe, Co, Ni, Ru) prepared show very high catalytic activity in hydrogen generation from the hydrolysis of...
Transition Metal Nanoparticles in Catalysis for the Hydrogen Generation from the Hydrolysis of Ammonia-Borane
Zahmakıran, Mehmet; Özkar, Saim (Springer Science and Business Media LLC, 2013-09-01)
Over the last decade, transition metal nanoparticles have attracted much attention owing to their unique properties, different to their bulk counterparts, which facilitate their application in different fields from materials science to engineering. Of particular interest, the use of transition metal nanoparticles in catalysis has brought transcendent efficiency in terms of activity, selectivity and lifetime to heterogeneous catalysis. In this account, we summarize the recent developments in the synthesis ro...
Transition metal nanoparticle catalysts in releasing hydrogen from the methanolysis of ammonia borane
Özkar, Saim (Elsevier BV, 2020-03-13)
Ammonia borane (H3N center dot BH3, AB) is one of the promising hydrogen storage materials due to high hydrogen storage capacity (19.6% wt), high stability in solid state as well as in solution and nontoxicity. The methanolysis of AB is an alternative way of releasing H-2 due to many advantages over the hydrolysis such as having high stability against self releasing hydrogen gas. Here we review the reports on using various noble or non-noble metal(0) catalysts for H-2 release from the methanolysis of AB. Ni...
Transition Metal Chelated Biopolymer Coated Mesoporous Silica Nanoparticles as Highly Efficient, Stable, and Recyclable Nanocatalysts for Catalytic Bleaching
Yurdakul, Merve; Öktem, Hüseyin Avni; Yilmaz, M. Deniz (2019-02-21)
The role of catalysts in the development of improved bleaching methods is of paramount scientific and industrial importance in the bleaching of raw cotton and laundry stains. Despite tremendous efforts, developing novel earth abundant metal nanocatalysts with high activity and stability remains a great challenge. Here, we demonstrate the successful formation of earth abundant transition metal-chelated layer-by-layer hyaluronic acid/chitosan polyelectrolyte-coated mesoporous silica nanoparticles (Metal@PEM-M...
Transition metal-doped janus monolayer SMoSe with excellent thermal spin filter and spin Seebeck effect
Ding, Guangqian; Wei, Mian; Surucu, Gokhan; Liang, Zhengyong; Wang, Xiaotian (Elsevier BV, 2019-10-15)
Motivated by the recent experimental synthesis of the novel janus monolayer SMoSe, we propose the design of spin caloritronic material based on transition metal-doped SMoSe monolayer. Using density functional theory combined with the non-equilibrium Green's function method, we show that a perfect thermal spin filter and a negative differential thermoelectric resistance are obtained in Fe-doped SMoSe janus monolayer. For Cr-doped SMoSe janus monolayer on the other hand, the thermal induced spin-up and spin-d...
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S. Özkar,
Transition metal nanoparticles as catalyst in hydrogen generation from the boron based hydrogen storage materials
. 2013, p. 189.