首例固定在多孔二氧化硅气凝胶基质中的单晶纳米金刚石：合成与表征

IF 2.6 4区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY ChemNanoMat Pub Date : 2024-08-06 DOI:10.1002/cnma.202400172

Irina G. Fomina, Inna O. Gozhikova, Natalia A. Sipyagina, Elena A. Straumal, Gennady P. Kopitsa, Andrey A. Mazilkin, Andrei A. Eliseev, Nikolay N. Efimov, Yury S. Zavorotny, Alexander V. Shvidchenko, Alexander Ya. Vul’, Igor L. Eremenko, Sergey A. Lermontov

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引用次数: 0

摘要

制备了第一种复合材料，该材料含有均匀分散在二氧化硅气凝胶基质中的爆炸纳米晶金刚石（DNDs）。合成方案包括用表面羧化 DND 的水溶液水解原硅酸四甲酯（Si(OMe)4, TMOS），DND 的典型尺寸为 4-5 纳米，DMSO 可作为共溶剂和 DND 单晶的稳定剂。在常温下制备了二氧化硅气凝胶基质中含有 DND 的复合样品，浓度分别为 1.0%、0.1% 和 0.01%（重量百分比）。HRTEM 数据显示，DNDs 纳米晶体在气凝胶中分布均匀，没有形成聚集体。对复合材料的纹理和光学特性进行了测定。

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First Example of Single‐Crystal Nanodiamonds Immobilized in Porous SiO2‐Aerogel Matrix: Synthesis and Characterization

A first composite material containing uniformly dispersed disaggregated detonation nanocrystalline diamonds (DNDs) in SiO2 aerogel matrix was prepared. The synthetic protocol included hydrolysis of tetramethyl orthosilicate (Si(OMe)4, TMOS) by hydrosol of surface carboxylated DNDs with a typical size of 4‐5 nm with DMSO serving as a cosolvent and a stabilizer of DND single crystals. Composite samples containing DNDs in silica aerogel matrix in concentration 1.0, 0.1 and 0.01% w/w were prepared at ambient temperature. HRTEM data revealed that DNDs nanocrystals were uniformly distributed in aerogel and did not form aggregates. Textural and optical composites’ properties were determined.

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来源期刊

ChemNanoMat Energy-Energy Engineering and Power Technology

CiteScore

6.10

自引率

2.60%

发文量

236

期刊介绍： ChemNanoMat is a new journal published in close cooperation with the teams of Angewandte Chemie and Advanced Materials, and is the new sister journal to Chemistry—An Asian Journal.