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Solvothermal flow synthesis of zinc phosphate pigment

Abstract

Synthesis of phase pure hopeite pigment through a solvothermal flow method is reported here for the first time. The products show two-step dehydration behaviour from thermogravimetric analysis (TGA), and a higher degree of purity and homogeniety than commercial zinc phosphate pigment. By increasing the reaction temperature stepwise from room temperature to 350 °C it was possible to decrease the size of the individual crystallite sheets and to tune their packing into larger assemblies. The conversion of reactants to product proved to be significantly higher at increased temperature with a measured yield of 98.7% at 250 °C versus 85.4 % at room temperature. The synthesis route demonstrated here is environmentally sustainable, increases cost-efficiency through minimization of waste, and is compatible with a scale-up strategy.

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Publication details

The article was received on 14 Apr 2018, accepted on 10 Jun 2018 and first published on 11 Jun 2018


Article type: Paper
DOI: 10.1039/C8DT01476K
Citation: Dalton Trans., 2018, Accepted Manuscript
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    Solvothermal flow synthesis of zinc phosphate pigment

    N. L. N. Broge, G. Philippot, B. B. Iversen and C. Aymonier, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT01476K

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