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Citation: SUN Jian-Qiu, NG Lu, SHEN Jing, LIN Zhou, LI Quan-Xin. Sol-Gel Preparation of Porous C12A7-Cl^- Crystals[J]. Acta Physico-Chimica Sinica, ;2010, 26(03): 795-798. doi: 10.3866/PKU.WHXB20100241 shu

Sol-Gel Preparation of Porous C12A7-Cl^- Crystals

1.
Laboratory of Biomass Clean Energy, Department of Chemical Physics, University of Science&Technology of China, Hefei 230026, P. R. China

Received Date: 13 October 2009
Available Online: 7 January 2010

Present study provides an approach to produce porous crystal material of C12A7-Cl- (Ca12Al14O32Cl2) by sol-gel method. Reactants for the gel were Ca(NO3)2·4H2O, Al(NO3)3·9H2O, CaCl2, urea, and ethylene glycol. The mixture solution was stirred for 2-3 h to form the sol, after thermal treatment at 350 ℃, the formed gel was then sintered under flowing ar n at 1000 ℃. The prepared porous crystal material was investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), electron paramagnetic resonance (EPR), and ion chromatography (IC). Results indicated that the C12A7-Cl-material was successfully prepared via sol-gel method and the Cl- anions were the dominant anions stored in the bulk of the material. The emission of Clanions from the C12A7-Cl- surface was detected by time-of-flight mass spectrometry (TOF-MS). Our results show that the sol-gel method can be potentially useful in the development of C12A7-Cl- materials.
- Sol-gel,
- C12A7-Cl-,
- Characterization,
- Emission
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沈阳化工大学材料科学与工程学院沈阳 110142

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Sol-Gel Preparation of Porous C12A7-Cl- Crystals

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通讯作者: 陈斌, bchen63@163.com

Sol-Gel Preparation of Porous C12A7-Cl^- Crystals