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Issue 17, 2018
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A sinter-resistant catalyst using an alumina support recycled from AlP fumigation residue: trash to treasure

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Abstract

Sintering is a long-standing issue especially in high temperature catalytic applications. In this paper, we report an effective method to slow down metal particle migration and coalescence (PMC) by using a thermally stable alumina support. Noteworthily, the alumina sample was developed from AlP fumigation residue, which is a very dangerous substance for living creatures and environment protection. By optimizing the heated hydrolysis and ball-milling conditions, we recycled a phosphate-stabilized alumina material that retained a 117 m2 g−1 surface area after 1050 °C hydrothermal aging. The catalyst using this newly developed alumina support had Pd dispersion 1.7 times higher than that using a commercial alumina support after aging. The kinetics and XPS experiments showed that phosphate neither participated in the catalytic reaction process nor changed the active sites. This catalyst also exhibited extraordinary water tolerance and durability, making it a promising material in automotive exhaust purification and other catalytic applications.

Graphical abstract: A sinter-resistant catalyst using an alumina support recycled from AlP fumigation residue: trash to treasure

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Publication details

The article was received on 06 Jan 2018, accepted on 23 Mar 2018 and first published on 27 Mar 2018


Article type: Paper
DOI: 10.1039/C8CP00111A
Citation: Phys. Chem. Chem. Phys., 2018,20, 11833-11842
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    A sinter-resistant catalyst using an alumina support recycled from AlP fumigation residue: trash to treasure

    J. Dong, J. Wang, J. Wang, G. Cheng, T. Huang and M. Shen, Phys. Chem. Chem. Phys., 2018, 20, 11833
    DOI: 10.1039/C8CP00111A

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