Key Factors for Template-Oriented Porous Titania Synthesis: Solvents and Catalysts

doi:10.1002/smtd.201900689

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Key Factors for Template-Oriented Porous Titania Synthesis: Solvents and Catalysts
	Yin, Shanshan ; Song, Lin ; Xia, Senlin ; Cheng, Yajun ; Hohn, Nuri ; Chen, Wei ; Wang, Kun ; Cao, Wei ; Hou, Shujin ; Mueller-Buschbaum, Peter
刊名	SMALL METHODS
	2020
卷号	4 期号:3
关键词	THIN-FILMS MORPHOLOGICAL TRANSITIONS PHASE-SEPARATION ANODE MATERIAL DIRECT ACCESS CRYSTALLINE ANATASE COPOLYMERS HYDROGEN NANOSTRUCTURES
DOI	10.1002/smtd.201900689
英文摘要	Various types of titania nanostructures are synthesized with a polymer-templated sol-gel method based on the amphiphilic diblock copolymer polystyrene-b-polyethylene oxide (PS-b-PEO) in combination with selective incorporation of the titania precursor titanium tetraisopropoxide. Custom tailoring of different types of titania morphologies is realized by changing the phase separation behavior of the PS-b-PEO template. Particularly, application of solvents from different categories is found to have a major impact upon the phase separation behavior of PS-b-PEO and the final titania film morphology. The amount of available hydrochloric acid catalyst during the gelation process is seen as an additional key factor to induce controllable morphological changes. Scanning electron microscopy and grazing incidence small angle X-ray scattering measurements are carried out to study the surface and inner structure of porous titania films. Systematic analysis and comparison of different characterization results allow attributing the following three factors to the respectively formed titania nanostructure: the surface energy between PS blocks and surrounding solvent, the aggregation behavior of the titania nanoparticles, and the block-specific selectivity of the used solvent. For all synthesized titania thin films, an anatase-type crystallization is confirmed through X-ray powder diffraction.
学科主题	Chemistry ; Science & Technology - Other Topics ; Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20181]
专题	2020专题
作者单位	1.Muller-Buschbaum, P (corresponding author), Tech Univ Munich, Lehrstuhl Funktionelle Mat, Phys Dept, James Franck Str 1, D-85748 Garching, Germany. 2.Muller-Buschbaum, P (corresponding author), Tech Univ Munich, Heinz Maier Leibnitz Zentrum MLZ, Lichtenbergstr 1, D-85748 Garching, Germany.
推荐引用方式 GB/T 7714	Yin, Shanshan,Song, Lin,Xia, Senlin,et al. Key Factors for Template-Oriented Porous Titania Synthesis: Solvents and Catalysts[J]. SMALL METHODS,2020,4(3).
APA	Yin, Shanshan.,Song, Lin.,Xia, Senlin.,Cheng, Yajun.,Hohn, Nuri.,...&Mueller-Buschbaum, Peter.(2020).Key Factors for Template-Oriented Porous Titania Synthesis: Solvents and Catalysts.SMALL METHODS,4(3).
MLA	Yin, Shanshan,et al."Key Factors for Template-Oriented Porous Titania Synthesis: Solvents and Catalysts".SMALL METHODS 4.3(2020).