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580003–004X/98/0102–0058$05.00 American Mineralogist, Volume 83, pages 58–67, 1998 Hydrothermal synthesis of ammonium illite V. ŠUCHA,1* F. ELSASS,2 D.D. EBERL,3 L’. KUCHTA,4 J. MADEJOVÁ,5 W.P. GATES,6 AND P. KOMADEL5 1Department of Geology of Mineral Deposits, Comenius University, Mlynská dolina G, 842 15 Bratislava, Slovakia 2Station de Science du Sol, INRA, Route de St. Cyr, Versailles, France 3U.S. Geological Survey, 3215 Marine Street, Boulder, Colorado 80303-1066, U.S.A. 4Department of Inorganic Chemistry, Comenius University, Mlynská dolina, 842 15

metastable and kinetically controlled products as well as reasonably large single crystals is possible through hydrothermal reactions 9 ], [ 10 ]. Furthermore, hydrothermal synthesis can be performed in much shorter reaction times due to the improved solubility of the educts, and hence, quicker mass transport 10 ]. The hydrothermal method is especially suitable for the synthesis of oxides and hydroxides, however, the products of such reactions are sometimes difficult to predict [ 10 ]. In recent years several new ruthenates were synthesized by hydrothermal methods, like

synthesis. However, no synthetic representatives of the lavendulan group were reported so far. Here we present the hydrothermal synthesis of a phosphate modification of mahnertite and its crystal structure, determined by synchrotron radiation at the ChemMatCARS facility at the Advanced Photon Source (Argonne National Laboratory, Lemont, IL, USA) at 100 K. Experimental procedure A novel phase – turquoise-blue crystals of tetragonal shape with a maximum size of about 0.05 mm ( Figure 1 ) – was obtained under hydrothermal conditions. A mixture of 0.5 g CuCl 2 , 0.5 g K 3 PO

Abstract

Abstract We report a one-step hydrothermal synthesis of Fe3O4 nanoparticles coated with Polyethyleneglycol (PEG). The formation of the Fe3O4 core and the polymer coating took place simultaneously. Fe3O4/polyethylene glycol (PEG) magnetic nanocomposite with a core-shell structure with a 17±7 nm crystallite size prepared by simple hydrothermal method. VSM ( Vibrating Sample Magnetometer) analysis proved the superparamagnetic character of the nanocomposite. Graphical abstract

–2000. DOI: 10.1021/cm001028c. http://dx.doi.org/10.1021/cm001028c [15] Peng, Y. Y., Meng, Z. Y., Zhong, C., Lu, J., Yu, W. C., Yang, Z. P., & Qian, Y. T. (2001). Hydrothermal synthesis of MoS2 and its pressure-related crystallization. Journal of Solid State Chemistry, 159, 170–173. DOI: 10.1006/jssc.2001.9146. http://dx.doi.org/10.1006/jssc.2001.9146 [16] Peng, Y. T., Hu, Y. Z., & Wang, H. (2007). Tribological behaviors of surfactant-functionalized carbon nanotubes as lubricant additive in water. Tribology Letters, 25, 247–253. DOI: 10.1007/s11249-006-9176-7. http

Non-hydrothermal Synthesis of a Complex {[Zn(phen)2]2(γ-Mo8O26)} Constructed from [γ-Mo8O26]4– Anions Zhaomin Haoa, Weihong Luob, Xiuhong Xua, and Fang Luoa a Institute of Functional Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China b College of Construction Engineering in Jilin University, Changchun, 130026, P. R. China Reprint requests to Dr. Fang Luo. E-mail: luof746@nenu.edu.cn Z. Naturforsch. 2009, 64b, 395 – 398; received January 14, 2009 An octamolybdate-supported complex, {[Zn(phen)2]2(γ-Mo8

early rare earth borate-nitrate structures, we present the hydrothermal synthesis and single-crystal structure characterization of Pr[B 5 O 8 (OH)(H 2 O) 0.87 ]NO 3 ·2H 2 O. 2 Experimental section 2.1 Synthesis Pr[B 5 O 8 (OH)(H 2 O) 0.87 ]NO 3 ·2H 2 O was synthesized hydrothermally in a Teflon-lined stainless-steel autoclave (holding approx. 8 mL) from Pr(NO 3 ) 3 ·6H 2 O [100.0 mg (0.23 mmol); Strem Chemicals, Kehl, Germany, 99.9%] and H 3 BO 3 [71.1 mg (1.15 mmol); Carl Roth GmbH and Co. KG, Karlsruhe, Germany, ≥99.8%] resulting in a Pr:B atomic ratio of 1:5. The

properties and particle size of polymer and carbon spheres. Langmuir 2013;29(12):4032–8. 3. Chen L, Cui X, Wang Y, Wang M, Cui F, Wei C, Huang W, Hua Z, Zhang L, Shi J. One step hydrothermal synthesis of nitrogen-doped carbon nanotubes as an efficient electro catalyst for oxygen reduction reactions. Chem Asian J. 2014;9(10):2915–20. 10.1002/asia.201402334 4. Zhang QH, Rastogi S, Chen DJ, Lippits D, Lemstra PJ. Low percolation threshold in single-walled carbon nanotube/high density polyethylene composites prepared by melt processing technique. Carbon 2006;44(4):778–85. 10

] Luo, C., Wang, S., & Liu, H. (2007). Cellulose conversion into polyols catalyzed by reversibly formed acids and supported ruthenium clusters in hot water. Angewandte Chemie International Edition, 46, 7636–7639. DOI: 10.1002/anie.200702661. http://dx.doi.org/10.1002/anie.200702661 [14] Milao, T. M., de Mendonça, V. R., Araújo, V. D., Avansi, W., Ribeiro, C., Longo, E., & Bernardi, M. I. B. (2012). Microwave hydrothermal synthesis and photocatalytic performance of ZnO and M:ZnO nanostructures (M = V, Fe, Co). Science of Advanced Materials, 4, 54–60. DOI: 10.1166/sam

Hydrothermal Synthesis and Crystal Structure of a Meso-Helical Chain Based on Lindqvist Polyoxometalates Chun-Jing Zhanga,b, Rui Fangb, Yan Yub, Hai-Jun Pangb, Hui-Yuan Mab, De-Sheng Cuib, and Dong-Ping Lib a College of Pharmaceutical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, P. R. China b Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province, College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040, China Reprint requests to Hui-Yuan Ma. Tel