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A general strategy for template-free and low-cost synthesis of inorganic hollow spheres
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.ORCID iD: 0000-0001-8978-0477
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
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2017 (English)In: Powder Technology, ISSN 0032-5910, E-ISSN 1873-328X, Vol. 319, p. 163-171Article in journal (Refereed) Published
Abstract [en]

Inorganic hollow spheres have a great potential in many fields, such as calcium phosphate (Ca3(PO4)2) as carriers of active ingredients and local delivery. They are typically synthesized by the methods that reply on template-based strategies. However, the template residue and energy consumption during template removal are drawbacks. Currently developed template-free methods remain challenges such as time, cost and complicated procedures. In this paper, we introduce a general low-cost and template-free precipitation method with simple procedure. A series of inorganic hollow spheres, including calcium phosphate, calcium fluoride, strontium phosphate, strontium fluoride, barium phosphate and barium fluoride via magnesium were successfully synthesized, respectively. Based on these experimental results, a new model is proposed to explain the mechanism of the hollow inorganic spheres formation. This paper provides a general method to synthesize inorganic hollow spheres, which may have an important indication to other systems.

Place, publisher, year, edition, pages
2017. Vol. 319, p. 163-171
Keywords [en]
Inorganic, Spheres, Hollow, Mechanism
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:uu:diva-333956DOI: 10.1016/j.powtec.2017.06.051ISI: 000407982600016OAI: oai:DiVA.org:uu-333956DiVA, id: diva2:1165513
Available from: 2017-12-13 Created: 2017-12-13 Last updated: 2018-06-04Bibliographically approved

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Qin, TaoZhang, PengWani, Ishtiaq HassanHan, YuanyuanLEIFER, KLAUSNikolajeff, FredrikEngqvist, Håkan

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Qin, TaoZhang, PengWani, Ishtiaq HassanHan, YuanyuanLEIFER, KLAUSNikolajeff, FredrikEngqvist, Håkan
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