Controllable Metal Dusting of Ni-M Alloys: New Opportunities for Design of Self-organized Catalysts and Synthesis of Carbon Nanomaterials Conference attendances
Language | Английский | ||||||||
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Participant type | Стендовый | ||||||||
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EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 Aug - 4 Sep 2015 , Казань |
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Abstract:
Bimetallic alloys Ni1-x-Mx (M=Co, Cu, Fe, Cr, Mo; x=0.01÷0.5) were synthesized by various methods (coprecipitation,
mechanochemical activation) to be used as precursors for preparation of self-organized catalysts active in production of carbon nanomaterials. Suggested approach is based on metal dusting (MD) of Ni-based alloys in aggressive reaction
atmosphere containing chlorinated hydrocarbons and H2. Ni-Mo precursor was found to give the most active catalyst while the best stabilizing effect was elucidated for the addition of Cr. Disintegration of starting alloys results in formation of the active metallic sites catalyzing multi-directional growth of carbon fibers of submicron diameter and segmented morphology. Due to defective structure, the obtained carbon product is characterized with high surface area (up to 400 m2/g) and porosity (0.5-0.8 cm3/g). The effect of M and its concentration in Ni-M precursor upon catalytic activity and structural peculiarities of CNM product being formed will be discussed in details.
Cite:
Mishakov I.V.
, Bauman Y.I.
, Shubin Y.V.
, Rudnev A.V.
, Vedyagin A.A.
, Buyanov R.A.
Controllable Metal Dusting of Ni-M Alloys: New Opportunities for Design of Self-organized Catalysts and Synthesis of Carbon Nanomaterials
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 Aug - 4 Sep 2015
Controllable Metal Dusting of Ni-M Alloys: New Opportunities for Design of Self-organized Catalysts and Synthesis of Carbon Nanomaterials
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 Aug - 4 Sep 2015