Facile synthesis of hydrothermal stable hierarchically macro-mesoporous hollow microspheres γ-Al2O3-graphene oxide composite: As a new efficient acid-base catalyst for transesterification reaction for biodiesel production
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作者:
AbdelDayem, Hany M.
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Ain Shams Univ, Fac Sci, Chem Dept, Cairo 11566, EgyptAin Shams Univ, Fac Sci, Chem Dept, Cairo 11566, Egypt
AbdelDayem, Hany M.
[1
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Salib, Basant G.
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Ain Shams Univ, Fac Sci, Chem Dept, Cairo 11566, EgyptAin Shams Univ, Fac Sci, Chem Dept, Cairo 11566, Egypt
Salib, Basant G.
[1
]
El-Hosiny, Fouad, I
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Ain Shams Univ, Fac Sci, Chem Dept, Cairo 11566, EgyptAin Shams Univ, Fac Sci, Chem Dept, Cairo 11566, Egypt
El-Hosiny, Fouad, I
[1
]
机构:
[1] Ain Shams Univ, Fac Sci, Chem Dept, Cairo 11566, Egypt
Alumina-hollow-microspheres- Graphene oxide (GO) composites with hierarchical macro-mesoporous structure and controllable GO loadings from 2 to 20 wt% had been synthesized using a self-limiting hydrogel method. The composite with 5wt% GO loading exhibited the best catalytic activity in sunflower oil transesterification, giving an oil conversion of 85.2% by using only 1.0 wt% catalyst to oil at 60 degrees C in traditional batch reactor. Furthermore, the same composite (GO(5 wt%)-alumina) exhibited higher oil conversion (97%) to methyl esters in autoclave reactor at 120 degrees C. The significant high activity of this composite toward oil conversion was attributed to that its macroporous structure facilitated the diffusion of products, and it has higher amounts of both acidic and basic oxygen functional groups than either the neat GO or alumina. In addition, GO(5 wt%)-alumina composite, also showed good water tolerance, as the oil conversion was varied from ca. 85.2 to 79.2% in 10 h when the water content in reaction mixture was increased from 0.0 to 3.0 wt%. Furthermore, the catalyst could be easily reused for at least six reaction cycles with loss in catalytic activity by factor of 3% and 14% for fresh and waste cooking oil respectively. The stability of this composite in liquid water at 200 degrees C for 12 h was also examined using variety of physicochemical techniques. It is shown that the presence of GO (5 wt%) inhibited the hydration of gamma-alumina to form boehmite.
机构:
Univ Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, SpainUniv Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
Anaya, Susana
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Serrano, Berna
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Univ Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, SpainUniv Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
Serrano, Berna
;
Herrero, Berta
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Univ Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
Atria Sci SL, Madrid 28918, SpainUniv Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
Herrero, Berta
;
Cervera, Alberto
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Euroortodoncia SL, Madrid 28923, SpainUniv Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
Cervera, Alberto
;
Baselga, Juan
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Univ Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, SpainUniv Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
机构:
Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Wuhan Univ Technol, Sch Chem Engn, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Cai, Weiquan
;
Yu, Jiaguo
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Wuhan Univ Technol, Sch Chem Engn, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Yu, Jiaguo
;
Mann, Stephen
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机构:
Univ Bristol, Sch Chem, Ctr Organized Matter Chem, Bristol BS8 1TS, Avon, EnglandWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
机构:
Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
Cheng, Jun
;
Qiu, Yi
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
Qiu, Yi
;
Huang, Rui
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
Huang, Rui
;
Yang, Weijuan
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
Yang, Weijuan
;
Zhou, Junhu
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
Zhou, Junhu
;
Cen, Kefa
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机构:
Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
机构:
Univ Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, SpainUniv Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
Anaya, Susana
;
Serrano, Berna
论文数: 0引用数: 0
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机构:
Univ Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, SpainUniv Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
Serrano, Berna
;
Herrero, Berta
论文数: 0引用数: 0
h-index: 0
机构:
Univ Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
Atria Sci SL, Madrid 28918, SpainUniv Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
Herrero, Berta
;
Cervera, Alberto
论文数: 0引用数: 0
h-index: 0
机构:
Euroortodoncia SL, Madrid 28923, SpainUniv Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
Cervera, Alberto
;
Baselga, Juan
论文数: 0引用数: 0
h-index: 0
机构:
Univ Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, SpainUniv Carlos III Madrid, Dept Mat Sci & Engn & Chem Engn, Madrid 28911, Spain
机构:
Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Wuhan Univ Technol, Sch Chem Engn, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Cai, Weiquan
;
Yu, Jiaguo
论文数: 0引用数: 0
h-index: 0
机构:
Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Wuhan Univ Technol, Sch Chem Engn, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Yu, Jiaguo
;
Mann, Stephen
论文数: 0引用数: 0
h-index: 0
机构:
Univ Bristol, Sch Chem, Ctr Organized Matter Chem, Bristol BS8 1TS, Avon, EnglandWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
机构:
Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
Cheng, Jun
;
Qiu, Yi
论文数: 0引用数: 0
h-index: 0
机构:
Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
Qiu, Yi
;
Huang, Rui
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机构:
Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
Huang, Rui
;
Yang, Weijuan
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h-index: 0
机构:
Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
Yang, Weijuan
;
Zhou, Junhu
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机构:
Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China
Zhou, Junhu
;
Cen, Kefa
论文数: 0引用数: 0
h-index: 0
机构:
Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China