DataVXACS Applied Materials & InterfacesPaper
journal article·2015-11-25Open access

Controlling Size, Morphology, and Surface Composition of AgAu Nanodendrites in 15 s for Improved Environmental Catalysis under Low Metal Loadings

Anderson G. M. da Silva, Thenner S. Rodrigues, Thomas J. A. Slater, Edward A. Lewis, Rafael S. Alves, Humberto V. Fajardo, Rosana Balzer, Alisson H. M. da Silva, Isabel C. de Freitas, Daniela C. Oliveira, Jose M. Assaf, Luiz F. D. Probst, Sarah J. Haigh, Pedro H. C. Camargo

ACS Applied Materials & Interfaces· Volume 7· Issue 46
Publisher pageOpen full text
Source abstract

Abstract

In this work, a simple but powerful method for controlling the size and surface morphology of AgAu nanodendrites is presented. Control of the number of Ag nanoparticle seeds is found to provide a fast and effective route by which to manipulate the size and morphology of nanoparticles produced via a combined galvanic replacement and reduction reaction. A lower number of Ag nanoparticle seeds leads to larger nanodendrites with the particles' outer diameter being tunable in the range of 45-148 nm. The size and surface morphology of the nanodendrites was found to directly affect their catalytic activity. Specifically, we report on the activity of these AgAu nanodendrites in catalyzing the gas-phase oxidation of benzene, toluene and o-xylene, which is an important reaction for the removal of these toxic compounds from fuels and for environmental remediation. All produced nanodendrite particles were found to be catalytically active, even at low temperatures and low metal loadings. Surprisingly, the largest nanodendrites provided the greatest percent conversion efficiencies.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Catalytic Processes in Materials Science · Electrocatalysts for Energy Conversion · Nanomaterials for catalytic reactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, São Paulo 05508-000, Brazil

School of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom

Departamento de Química, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais 35400-000, Brazil

Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis Santa Catarina, 88040-900, Brazil

Departamento de Engenharia Química, Universidade Federal de São Carlos, São Carlos, São Paulo 13565-905, Brazil

Laboratório Nacional de Luz Síncrotron, Campinas, São Paulo 13083-970, Brazil

Funding

Fundação de Amparo à Pesquisa do Estado de Minas Gerais · Defense Threat Reduction Agency · Conselho Nacional de Desenvolvimento Científico e Tecnológico · Coordenação de Aperfeiçoamento de Pessoal de Nível Superior · Agência Nacional do Petróleo, Gás Natural e Biocombustíveis · Fundação de Amparo à Pesquisa do Estado de São Paulo · Engineering and Physical Sciences Research Council

References (46)

Show source-provided references
1. 10.1021/cr300078510.1021/cr3000785 ↗
2. 10.1016/j.apcata.2013.04.03410.1016/j.apcata.2013.04.034 ↗
3. 10.1021/cr200260m10.1021/cr200260m ↗
4. 10.1021/cr050954d10.1021/cr050954d ↗
5. 10.1002/anie.20090058510.1002/anie.200900585 ↗
6. 10.1021/nl404744810.1021/nl4047448 ↗
7. 10.1002/cnma.20150002510.1002/cnma.201500025 ↗
8. 10.1039/c0nr00276c10.1039/c0nr00276c ↗
9. 10.1021/ja106679z10.1021/ja106679z ↗
10. 10.5935/0100-4042.2014023510.5935/0100-4042.20140235 ↗
11. 10.1039/c2nr33345g10.1039/c2nr33345g ↗
12. 10.1126/science.117037710.1126/science.1170377 ↗
13. 10.1002/anie.20100090210.1002/anie.201000902 ↗
14. 10.1039/c3cc40503f10.1039/c3cc40503f ↗
15. 10.1021/cm903888910.1021/cm9038889 ↗
16. 10.1039/C4TA04940C10.1039/C4TA04940C ↗
17. 10.1021/nl103007m10.1021/nl103007m ↗
18. 10.1021/nl062969c10.1021/nl062969c ↗
19. 10.1016/j.elecom.2013.02.00710.1016/j.elecom.2013.02.007 ↗
20. 10.1002/chem.20140473910.1002/chem.201404739 ↗
21. 10.1016/S0920-5861(00)00487-910.1016/S0920-5861(00)00487-9 ↗
22. 10.1016/j.apcatb.2011.10.00210.1016/j.apcatb.2011.10.002 ↗
23. 10.1016/j.cattod.2009.03.00710.1016/j.cattod.2009.03.007 ↗
24. 10.1016/j.jhazmat.2004.03.01910.1016/j.jhazmat.2004.03.019 ↗
25. 10.1039/jm996060057310.1039/jm9960600573 ↗
26. 10.1016/j.msea.2005.11.05210.1016/j.msea.2005.11.052 ↗
27. 10.1021/ar700097410.1021/ar7000974 ↗
28. 10.1140/epjd/e2012-30144-y10.1140/epjd/e2012-30144-y ↗
29. 10.1016/j.chemphys.2013.07.00810.1016/j.chemphys.2013.07.008 ↗
30. 10.1002/chem.20150170410.1002/chem.201501704 ↗
31. 10.1016/j.apsusc.2013.04.05110.1016/j.apsusc.2013.04.051 ↗
32. 10.1016/j.jcat.2012.09.02310.1016/j.jcat.2012.09.023 ↗
33. 10.1021/jp961906n10.1021/jp961906n ↗
34. 10.1016/j.jpowsour.2015.03.06610.1016/j.jpowsour.2015.03.066 ↗
35. 10.1021/jp500102g10.1021/jp500102g ↗
36. 10.1002/sia.218010.1002/sia.2180 ↗
37. 10.1016/j.jcat.2012.10.01910.1016/j.jcat.2012.10.019 ↗
38. 10.1016/j.catcom.2011.02.01210.1016/j.catcom.2011.02.012 ↗
39. 10.1016/j.cattod.2014.06.03410.1016/j.cattod.2014.06.034 ↗
40. 10.1016/j.molcata.2011.10.00510.1016/j.molcata.2011.10.005 ↗
41. 10.1007/s10562-015-1585-510.1007/s10562-015-1585-5 ↗
42. 10.1016/S0926-3373(02)00127-310.1016/S0926-3373(02)00127-3 ↗
43. 10.1016/j.cej.2012.01.13210.1016/j.cej.2012.01.132 ↗
44. 10.1016/j.cej.2014.08.09910.1016/j.cej.2014.08.099 ↗
45. 10.1007/s10853-015-9315-310.1007/s10853-015-9315-3 ↗
46. 10.1002/anie.20110199310.1002/anie.201101993 ↗