Preparing carbon black aerogel quickly by chemical vapor deposition

Zhou, Xunpeng; Wang, Yafeng; Xiao, Lihua; Zhang, Mingyu; Su, Zhean; Huang, Qizhong

doi:10.1016/j.coco.2022.101460

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…5d). 108 Drawing inspiration from the distinct lamellar layers linked by bridge architecture found in natural Thalia dealbata, Feng et al designed a three-step process of bidirectional freezing, freeze drying, and chemical vapor deposition (CVD) modication to produce highly compressive graphene oxide/TEMPO-oxidized cellulose nanober/polyvinyl alcohol aerogels (b-MGTPAs). 109 The hydrophobic properties of b-MGTPAs, along with their low cost, easy preparation, and steady performance, make them a suitable candidate for cleaning up organic solvent spill cases.…”

Section: Chemical Vapor Deposition Methodsmentioning

confidence: 99%

Bioinspired aerogels: ingenious structure, remarkable performance, and versatile applications

Sun,

Yang,

et al. 2024

J. Mater. Chem. A

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Section: Chemical Vapor Deposition Methodsmentioning

confidence: 99%

Bioinspired aerogels: ingenious structure, remarkable performance, and versatile applications

Sun,

Yang,

et al. 2024

J. Mater. Chem. A

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“…CVD was utilized to produce lightweight carbon black aerogels (0.8 kg) in just 5 hours. These aerogels exhibit a low thermal conductivity of 0.049 W/(m⋅K) at 25°C, attributed to their low density, high porosity, and small pore size, which hinder phonon and radiation heat conduction ( Zhou et al, 2023 ). Furthermore, CVD was used to prepare lightweight graphene/poly (dimethyl siloxane) composites with high electrical conductivity, reaching around 10 Scm -1 .…”

Section: Carbonizationmentioning

confidence: 99%

The effect of synthesis conditions and process parameters on aerogel properties

Payanda Konuk,

Alsuhile,

Yousefzadeh

et al. 2023

Front. Chem.

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Aerogels are remarkable nanoporous materials with unique properties such as low density, high porosity, high specific surface area, and interconnected pore networks. In addition, their ability to be synthesized from various precursors such as inorganics, organics, or hybrid, and the tunability of their properties make them very attractive for many applications such as adsorption, thermal insulation, catalysts, tissue engineering, and drug delivery. The physical and chemical properties and pore structure of aerogels are crucial in determining their application areas. Moreover, it is possible to tailor the aerogel properties to meet the specific requirements of each application. This review presents a comprehensive review of synthesis conditions and process parameters in tailoring aerogel properties. The effective parameters from the dissolution of the precursor step to the supercritical drying step, including the carbonization process for carbon aerogels, are investigated from the studies reported in the literature.

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“…Due to these structural characteristics, it is commonly used as catalyst directly or the matrix to load catalyst [40][41][42], which showing a great catalytic performance. At present, there are many methods to prepare TiO2 aerogels, including sol-gel method [43][44][45][46][47], hydrothermal method [48,49], dry method [50,51], microemulsion method [52,53], precipitation method [54][55][56][57], and so on. Among these common strategies, the sol-gel method has received the most widely studied.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Study of the Impact of Pore Size in TiO₂ Aerogels on Photocatalytic Formaldehyde Decomposition

Xiang,

Sun,

2024

Preprint

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Formaldehyde (HCHO), an indoor volatile organic compound, is seriously harmful to human health. Therefore, green and effective decomposition of HCHO is essential. TiO2 has been employed for the degradation of HCHO via photocatalytic generation of reactive oxygen species (ROS) (O2-, ·OH), yet the low specific surface area of crystalline TiO2 depressed the catalytic performance. Herein, we prepared TiO2 aerogels with high specific surface area and high porosity by sol-gel method, and added PVA to introduce flexible molecular chains for pore size regulation. The photocatalytic performance test verifies that the pore size of TiO2 aerogel is one of the important factors for HCHO decomposition. Notably, through the establishment of theoretical model and calculation, we validated that the efficiency of HCHO decomposition is related to the oxygen pressure in the pores of TiO2 aerogel, and the oxygen pressure is inversely proportional to the pore size. Accordingly, the optimal pore size of TiO2 aerogel for the photocatalytic HCHO decomposition is 2 nm~10 nm. This study provides a theoretical idea for TiO2 aerogels in the decomposition reaction of HCHO, which is expected to inspire more breakthroughs in the study of TiO2 aerogels for green chemistry.

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Preparing carbon black aerogel quickly by chemical vapor deposition

Cited by 7 publications

References 6 publications

Bioinspired aerogels: ingenious structure, remarkable performance, and versatile applications

Bioinspired aerogels: ingenious structure, remarkable performance, and versatile applications

The effect of synthesis conditions and process parameters on aerogel properties

Theoretical Study of the Impact of Pore Size in TiO₂ Aerogels on Photocatalytic Formaldehyde Decomposition

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