Ordered and twinned structure in hexagonal-based potassium tungsten bronze nanosheets

作者: Shuangfeng Jia , Hongqian Sang , Wenjing Zhang , Han Zhang , He Zheng

DOI: 10.1107/S0021889813026216

关键词: MetallurgyCrystal growthBronzeSuperstructure (condensed matter)Crystal twinningPotassium hydroxideCrystallographyMaterials scienceMonoclinic crystal systemPotassiumTungsten

摘要: Non-stoichiometric hexagonal-based potassium tungsten bronze (KxWO3) nanosheets were synthesized by oxidizing foil in hydroxide. The exhibited an ordered monoclinic superstructure as revealed X-ray diffraction patterns. Further detailed structural investigation employing electron microscopy techniques showed the coexistence of 120° rotation twinning variants phase, which may result from symmetry reduction induced arrangements K vacancies during crystal growth.

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