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K-Modulated Co Nano...
K-Modulated Co Nanoparticles Trapped in La-Ga-O as Superior Catalysts for Higher Alcohols Synthesis from Syngas
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- Guo, Shaoxia (författare)
- Tianjin Univ, Sch Chem Engn, Tianjin Key Lab Appl Catalysis Sci & Technol, Tianjin 300350, Peoples R China.;Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China.
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- Liu, Guilong (författare)
- Luoyang Normal Univ, Coll Chem & Chem Engn, Luoyang 471934, Peoples R China.;Luoyang Normal Univ, Key Lab Funct Oriented Porous Mat Henan Prov, Luoyang 471934, Peoples R China.
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- Han, Tong (författare)
- KTH,Materialvetenskap
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- Zhang, Ziyang (författare)
- Tianjin Univ, Sch Chem Engn, Tianjin Key Lab Appl Catalysis Sci & Technol, Tianjin 300350, Peoples R China.;Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China.
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- Liu, Yuan (författare)
- Tianjin Univ, Sch Chem Engn, Tianjin Key Lab Appl Catalysis Sci & Technol, Tianjin 300350, Peoples R China.;Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China.
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Tianjin Univ, Sch Chem Engn, Tianjin Key Lab Appl Catalysis Sci & Technol, Tianjin 300350, Peoples R China;Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China. Luoyang Normal Univ, Coll Chem & Chem Engn, Luoyang 471934, Peoples R China.;Luoyang Normal Univ, Key Lab Funct Oriented Porous Mat Henan Prov, Luoyang 471934, Peoples R China. (creator_code:org_t)
- 2019-02-27
- 2019
- Engelska.
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Ingår i: Catalysts. - : MDPI. - 2073-4344. ; 9:3
- Relaterad länk:
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https://doi.org/10.3...
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https://www.mdpi.com...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Owing to the outstanding catalytic performance for higher alcohol synthesis, Ga-Co catalysts have attracted much attention. In view of their unsatisfactory stability and alcohol selectivity, herein, K-modulated Co nanoparticles trapped in La-Ga-O catalysts were prepared by the reduction of La1-xKxCo0.65Ga0.35O3 perovskite precursor. Benefiting from the atomic dispersion of all the elements in the precursor, during the reduction of La1-xKxCo0.65Ga0.35O3, Co nanoparticles could be confined into the K-modified La-Ga-O composite oxides, and the confinement of La-Ga-O could improve the anti-sintering performance of Co nanoparticles. In addition, the addition of K modulated parts of La-Ga-O into La2O3, which ameliorated the anti-carbon deposition performance. Finally, the addition of K increased the dispersion of cobalt and provided more electron donors to metallic Co, resulting in a high activity and superior selectivity to higher alcohols. Benefiting from the above characteristics, the catalyst possesses excellent activity, good selectivity, and superior stability.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- perovskite-type oxide (PTO)
- cobalt
- gallium
- potassium
- higher alcohols
- syngas
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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