Synthesis and characterization of Al<sub>2</sub>O<sub>3</sub>-C hybrid aerogels by a one-pot sol-gel method

ZHANG Rui; JIANG Ning; DUAN Xiao-jia; JIN Shuang-ling; JIN Ming-lin

doi:10.1016/S1872-5805(17)60122-7

Volume 32 Issue 3

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Article Navigation > New Carbon Mater. > 2017 > 32(3): 258-264

ZHANG Rui, JIANG Ning, DUAN Xiao-jia, JIN Shuang-ling, JIN Ming-lin. Synthesis and characterization of Al2O3-C hybrid aerogels by a one-pot sol-gel method. New Carbon Mater., 2017, 32(3): 258-264. doi: 10.1016/S1872-5805(17)60122-7

Citation:

ZHANG Rui, JIANG Ning, DUAN Xiao-jia, JIN Shuang-ling, JIN Ming-lin. Synthesis and characterization of Al₂O₃-C hybrid aerogels by a one-pot sol-gel method. New Carbon Mater., 2017, 32(3): 258-264. doi: 10.1016/S1872-5805(17)60122-7

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Synthesis and characterization of Al₂O₃-C hybrid aerogels by a one-pot sol-gel method

doi: 10.1016/S1872-5805(17)60122-7

1.
School of Materials Sciences and Engineering, Shanghai Institute of Technology, Shanghai 201418, China;
2.
Chemical Engineering College, East China University of Science and Technology, Shanghai 200237, China

Funds: National Natural Science Foundation of China (50872033,U1332107,U1532105);Fund of Key Laboratory of Carbon Materials,Chinese Academy of Sciences (KFJJ0903);the Capacity Building Program of Shanghai Local Universities (12160503600);First-class Discipline Construction Fund of Shanghai Municipal Education Commission (J201212);Key Discipline Construction Fund of Composite Materials of Shanghai Institute of Technology (10210Q150001).

Received Date: 2017-01-08
Accepted Date: 2017-06-28
Rev Recd Date: 2017-04-30
Publish Date: 2017-06-28

Abstract

Abstract

Al₂O₃-C hybrid aerogels were prepared by a one-pot sol-gel method,supercritical n-hexane drying and carbonization using Al (NO₃)₃·9H₂O as the Al₂O₃ source,resorcinol (R) and furfural (F) as carbon precursors,and propylene oxide (PO) as a gelation initiator.The effects of the Al₂O₃ contents,the R+F concentrations and the PO/Al molar ratios on the porosity of the hybrid aerogels were investigated using a constant R/F molar ratio of 0.5.It was found that the hybrid aerogels are all mesoporous with an average pore size below 20 nm.The crystalline structure of Al₂O₃ is γ-type,but its diffraction peaks are quite broad.The hybrid aerogels are monolithic when the Al₂O₃ content is below 5.31 wt% with an R+F concentration of 10 g/100 mL.The mesopore volume and size,BET surface area and external surface area all increase with increasing PO/Al molar ratio under otherwise identical conditions.The volume shrinkage decreases,carbonization yield increases and the density of the hybrid aerogel exhibits a maximum with an Al₂O₃ content of 4.93 wt%.The size and volume of the mesopores,and the external surface area decrease with the increasing R+F concentration at PO/Al ratios of 5 and 6,but increase with increasing R+F concentration at a PO/Al ratio of 4.
- Al₂O₃-C hybrid aerogel,
- Sol-gel method,
- Supercritical drying

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References

Hudeinstein P, Sanchez C. Hybrid organic-inorganic materials:a land of multidisciplinarity[J]. J Mater Chem, 1996, 6:511-525.

Sanchez C, Rozes L, Ribot F, Laberty-Robert C, et al. “Chimie douce”:A land of opportunities for the designed construction of functional inorganic and hybrid organic-inorganic nanomaterials[J]. C R Chimie, 2010, 13:3-39.

Tan CH, Cao J, Khattak AM, et al. High-performance tin oxide-nitrogen doped graphene aerogel hybrids as anode materials for lithium-ion batteries[J]. Journal of Power Sources, 2014, 270:28-33.

Yuna S, Lee S, Shin C, et al. One-pot self-assembled, reduced graphene oxide/palladium nanoparticle hybrid aerogels for electrocatalytic applications[J]. Electrochimica Acta, 2015, 180:902-908.

Singh V, Singh D. Polyvinyl alcohol-silica nanohybrids:An efficient carrier matrix for amylase immobilization[J]. Process Biochemistry, 2013, 48:96-102.

Catauro M, Bollino F, Mozzati MC, et al. Structure and magnetic properties of SiO₂/PCL novel sol-gel organic-inorganic hybrid materials[J]. Journal of Solid State Chemistry, 2013, 203:92-99.

Maleki H, Durães L, Portugal A. Synthesis of light weight polymer-reinforced silica aerogels with improved mechanical and thermal insulation properties for space applications[J]. Microporous and Mesoporous Materials, 2014,197:116-129.

Shao X, Lu W, Zhang R, et al. Enhanced photocatalytic activity of TiO₂-C hybrid aerogels for methylene blue degradation[J]. Scientific Reports, 2013, 3:3018.

周贝, 张睿, 郭全贵, 等. 有机/无机杂化制备低密度高中孔率炭气凝胶[J]. 新型炭材料, 2011, 26(2):117-122. (ZHOU Bei, ZHANG Rui, GUO Quan-Gui, et al. Preparation of low density and high mesoporosity carbon aerogels by an organic/inorganic hybrid method[J]. New Carbon Materials, 2011, 26(2):117-122.)

Torma V, Peterlik H, Bauer U, et al. Mixed silica titania materials prepared from a single-source sol-gel precursor:a time-resolved SAXS study of the gelation, aging, supercritical drying, and calcination processes[J]. Chemistry of Materials, 2005, 17:3146-3153.

Chen K, Bao Z, Du A, et al. Synthesis of resorcinol-formaldehyde/silica composite aerogels and their low-temperature conversion to mesoporous silicon carbide[J]. Microporous and Mesoporous Materials, 2012, 149:16-24.

Anasori B, Beidaghi M, Gogotsi Y. Graphene-transition metal oxide hybrid materials:Hybrid structures for energy storage[J]. Materials Today, 2014, 17(5):253-254.

Pekala RW, Kong FM. Resorcinol-formaldehyde aerogels and their carbonized derivatives[J]. Polymer Preprint, 1989, 30:221-223.

Clapsaddle BJ, Sprehn DW, Gash AE, et al. A versatile sol-gel synthesis route to metal-silicon mixed oxide nanocomposites that contain metal oxides as the major phase[J]. Journal of non-crystalline solids, 2004, 350:173-181.

Baumann TF, Gash AE, Chinn SC, et al. Synthesis of high-surface-area alumina aerogels without the use of alkoxide precursors[J]. Chemistry of Materials, 2005, 17(2):395-401.

Singh KSW, Everett DH, Haul RAW, et al. Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity[J]. Pure Appl Chem, 1985, 57(4):603-619.

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