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Large-scale synthesis of uniformly dispersed hexagram-like gibbsite by a controlled replacement reaction
Hai, Chunxi1,2; Zhou, Yuan1,2; Zhang, Lijuan1,2; Sun, Yanxia1,2; Li, Xiang1,2; Shen, Yue1,2; Zhan, Huaijin3; Han, Qier3; Liu, Jianghua4; Ren, Hongbo4
2017-07-21
发表期刊CRYSTENGCOMM
卷号19期号:27页码:3850-3855
文章类型Article
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.
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]LAYERED DOUBLE-HYDROXIDE ; BOEHMITE ; NANOPARTICLES ; NANOWIRES ; NANORODS ; ALUMINA ; SURFACE ; METAL ; SIZE ; AL(OH)(3)
收录类别SCI
语种英语
WOS研究方向Chemistry ; Crystallography
WOS类目Chemistry, Multidisciplinary ; Crystallography
WOS记录号WOS:000405274100015
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
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, 18th Xinning Rd, Xining 810008, Peoples R China
2.Key Lab Salt Lake Resources Chem Qinghai Prov, Xining, Peoples R China
3.Qinghai Nationalities Univ, 3 Baiyizhonglu, Xining 810007, Peoples R China
4.Shengnuo Optoelect Technol QH Co Ltd, Xining 810000, Peoples R China
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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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