Knowledge Management System Of Qinghai Institute of Salt Lakes,CAS
Large-scale synthesis of uniformly dispersed hexagram-like gibbsite by a controlled replacement reaction | |
Hai, Chunxi; Zhou, Yuan; Zhang, Lijuan; Sun, Yanxia; Li, Xiang; Shen, Yue; Zhan, Huaijin; Han, Qier; Liu, Jianghua; Ren, Hongbo | |
第一作者 | Hai, Chunxi |
2017-07-21 | |
发表期刊 | CRYSTENGCOMM |
ISSN | 1466-8033 |
卷号 | 19期号:27页码:3850-3855 |
摘要 | A facile, convenient, and mild method has been developed for large-scale synthesis of uniformly dispersed 2D six-pointed star-like gibbsite micro-nano crystals with lateral size around 2.5 mu m and thickness around 100 nm, through a replacement reaction between Al powder and water. Investigation of the influence of solvent in a series allows for conclusion that replacing the reactant solvent water with ethylene glycol not only effectively moderates the reaction, but also benefits control of shape, crystal structure, and dispersibility. In contrast, besides decreasing the reaction speed, the same function cannot be attributed to another inorganic solvent candidate absolute ethanol. This conclusion was supported by XRD, FE-SEM, TEM, FT-IR, TGA and PSD measurements. Moreover, the band gap of as-prepared gibbsite powder in EG-H2O mixture is 5.78 eV, which is mainly attributed to its surface low coordinated O2-. Theoretically, scale-up of this simple synthetic procedure for large-scale production of gibbsite powder with high crystallinity and purity should be very easy. |
DOI | 10.1039/c7ce00822h |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.isl.ac.cn/handle/363002/6237 |
专题 | 青海盐湖研究所知识仓储 盐湖资源与化学实验室 |
推荐引用方式 GB/T 7714 | Hai, Chunxi,Zhou, Yuan,Zhang, Lijuan,et al. Large-scale synthesis of uniformly dispersed hexagram-like gibbsite by a controlled replacement reaction[J]. CRYSTENGCOMM,2017,19(27):3850-3855. |
APA | Hai, Chunxi.,Zhou, Yuan.,Zhang, Lijuan.,Sun, Yanxia.,Li, Xiang.,...&Ren, Hongbo.(2017).Large-scale synthesis of uniformly dispersed hexagram-like gibbsite by a controlled replacement reaction.CRYSTENGCOMM,19(27),3850-3855. |
MLA | Hai, Chunxi,et al."Large-scale synthesis of uniformly dispersed hexagram-like gibbsite by a controlled replacement reaction".CRYSTENGCOMM 19.27(2017):3850-3855. |
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