Ag2O nanoparticles/MnCO3, -MnO2 or -Mn2O3/highly reduced graphene oxide composites as an efficient and recyclable oxidation catalyst
被引:33
作者:
Assal, Mohamed E.
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King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Assal, Mohamed E.
[1
]
Shaik, Mohammed Rafi
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King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Shaik, Mohammed Rafi
[1
]
Kuniyil, Mufsir
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机构:
King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
KL Univ, Dept Chem, Guntur 522502, Andhra Prades, IndiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Kuniyil, Mufsir
[1
,2
]
Khan, Mujeeb
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King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Khan, Mujeeb
[1
]
Al-Warthan, Abdulrahman
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King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Al-Warthan, Abdulrahman
[1
]
Alharthi, Abdulrahman Ibrahim
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Prince Sattam Bin Abdulaziz Univ, Coll Sci, Dept Chem, Al Kharj 16278, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Alharthi, Abdulrahman Ibrahim
[3
]
Varala, Ravi
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RGUKT Basar, Dept Chem, Adilabad 504107, Telangana, IndiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Varala, Ravi
[4
]
Siddiqui, Mohammed Rafiq H.
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King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Siddiqui, Mohammed Rafiq H.
[1
]
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Adil, Syed Farooq
[1
]
机构:
[1] King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
[2] KL Univ, Dept Chem, Guntur 522502, Andhra Prades, India
[3] Prince Sattam Bin Abdulaziz Univ, Coll Sci, Dept Chem, Al Kharj 16278, Saudi Arabia
[4] RGUKT Basar, Dept Chem, Adilabad 504107, Telangana, India
Silver oxide nanoparticles doped manganese (IV) oxide along with varying percentages of highly reduced graphene oxide (HRG) [Ag2O(1%)-MnO2/(X%)HRG] nanocomposites were fabricated through a simple co-precipitation method followed by calcination at 400 degrees C. The asprepared nanocomposite upon calcination at 300 degrees C and 500 degrees C temperatures, yields the manganese carbonate (MnCO3) and manganese (III) oxide (Mn2O3) composites i.e. Ag2O(1%)-MnCO3/(X%)HRG and Ag2O(1%)-Mn2O3/(X%)HRG, correspondingly. The structural composition of the prepared nanocomposites has confirmed by several characterization techniques. The nanocomposites have successfully utilized as a catalyst for liquid-phase oxidation of aromatic alcohols in presence of O-2 as a green oxidant under alkali-free conditions. In addition, a comparative study was performed to assess the activity of the manganese carbonates and manganese oxides for aerial oxidation of benzyl alcohol into benzaldehyde as a model reaction. Effects of various parameters have thoroughly examined in detail and the Ag2O(1%)-MnO2/(5%)HRG catalyst exhibited the highest activity in the aerial oxidation of benzyl alcohol to benzaldehyde with a 100% conversion and >99% selectivity in a remarkably short reaction time (35 min) than the undoped precursor i.e. Ag2O(1%)-MnO2. The presence of HRG dopant greatly enhanced the catalytic performance of Ag2O-MnO2 nanocatalysts could be attributed to the presence of carbon vacancies and topological defects as well as oxygen carrying functionalities on the HRG surface and increase in the surface area. The as-prepared catalyst could be efficiently recycled and reused up to five times without a discernible drop in its catalytic performance and the product selectivity remained unchanged. The prepared catalyst i.e. Ag2O(1%)-MnO2/(5%)HRG was employed as oxidation catalyst for a series of various substituted benzylic and aliphatic alcohols into their respective aldehydes and yielded complete conversion with excellent product selectivity with no further oxidation to acids. (C) 2018 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University.
机构:
King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Assal, Mohamed E.
;
Kuniyil, Mufsir
论文数: 0引用数: 0
h-index: 0
机构:
King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
KL Univ, Dept Chem, Guntur 522502, Andhra Prades, IndiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Kuniyil, Mufsir
;
Khan, Mujeeb
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h-index: 0
机构:
King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Khan, Mujeeb
;
Shaik, Mohammed Rafi
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h-index: 0
机构:
King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Shaik, Mohammed Rafi
;
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Alwarthan, Abdulrahman
;
Labis, Joselito P.
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h-index: 0
机构:
King Saud Univ, King Abdullah Inst Nanotechnol, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Labis, Joselito P.
;
Siddiqui, Mohammed Rafiq H.
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h-index: 0
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King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
机构:
Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Allen, Matthew J.
;
Tung, Vincent C.
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h-index: 0
机构:
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Tung, Vincent C.
;
Kaner, Richard B.
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h-index: 0
机构:
Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
机构:
Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Minist Environm Protect, Key Lab Ecoind, Beijing 100012, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Bai, Bingyang
;
Qiao, Qi
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Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Minist Environm Protect, Key Lab Ecoind, Beijing 100012, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Qiao, Qi
;
Li, Junhua
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机构:
Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Li, Junhua
;
Hao, Jiming
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h-index: 0
机构:
Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
机构:
King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Assal, Mohamed E.
;
Kuniyil, Mufsir
论文数: 0引用数: 0
h-index: 0
机构:
King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
KL Univ, Dept Chem, Guntur 522502, Andhra Prades, IndiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Kuniyil, Mufsir
;
Khan, Mujeeb
论文数: 0引用数: 0
h-index: 0
机构:
King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Khan, Mujeeb
;
Shaik, Mohammed Rafi
论文数: 0引用数: 0
h-index: 0
机构:
King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Shaik, Mohammed Rafi
;
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机构:
Alwarthan, Abdulrahman
;
Labis, Joselito P.
论文数: 0引用数: 0
h-index: 0
机构:
King Saud Univ, King Abdullah Inst Nanotechnol, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
Labis, Joselito P.
;
Siddiqui, Mohammed Rafiq H.
论文数: 0引用数: 0
h-index: 0
机构:
King Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi ArabiaKing Saud Univ, Coll Sci, Dept Chem, PO 2455, Riyadh 11451, Saudi Arabia
机构:
Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Allen, Matthew J.
;
Tung, Vincent C.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Tung, Vincent C.
;
Kaner, Richard B.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
机构:
Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Minist Environm Protect, Key Lab Ecoind, Beijing 100012, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Bai, Bingyang
;
Qiao, Qi
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Minist Environm Protect, Key Lab Ecoind, Beijing 100012, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Qiao, Qi
;
Li, Junhua
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Li, Junhua
;
Hao, Jiming
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China