Template-free synthesis of high surface area single-crystalline lanthanum hydroxide nanorods via a low-temperature solution route |
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| Authors: | Jiguang Deng Lei Zhang Chak Tong Au Hongxing Dai |
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| Affiliation: | 1. Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China;2. Laboratory of Catalysis Chemistry and Nanoscience, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China;1. Center for Green Fusion Technology and Department of Engineering in Energy & Applied Chemistry, Silla University, Busan 617-736, Republic of Korea;2. Center for Materials Architecturing, Institute of Multidisciplinary Convergence of Materials, Korea Institute of Science and Technology, Seoul 130-650, Republic of Korea;1. Department of Civil and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore;2. Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576, Singapore;1. College of Materials Science and Engineering, Nanjing University of Technology, Xin-mo-fan Road No. 5, Nanjing 210009, China;2. Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, Shanghai 200062, China;3. National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan;1. Departamento de Química—Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto—Universidade de São Paulo, 14040-901 Ribeirão Preto, SP, Brazil;2. Departamento de Bioquímica e Biologia Molecular—Universidade Federal de Viçosa, 36570-000 Viçosa, MG, Brazil;3. Instituto Nacional de Biotecnologia Estrutural e Química Medicinal em Doenças Infecciosas (INBEQMeDI), São Carlos, São Paulo, Brazil |
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| Abstract: | Under mild reaction conditions, uniform La(OH)3 nanorods were fabricated in large scale by a facile template-free solution method. The as-prepared sample was characterized by a number of techniques. It is found that the La(OH)3 nanorods are hexagonal in structure and single-crystalline, with the diameter and length of 6–30 and 45–200 nm, respectively. The surface area of the nanorods is up to 113 m2/g. We attribute the high surface area to the use of 1-propanol/H2O mixed solvent and the rapid cooling of sample to 0 °C. A formation mechanism of the rodlike crystal is tentatively suggested. The reported solution-phase process may be a facile and low-cost approach for the generation of high surface area single-crystalline nanorods of other rare earth hydroxides. |
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