Fabrication of nanoporous GeO x supported Ag nanoparticle composite by dealloying of (Al 0.6 Ge 0.3 Mn 0.1 ) 98 Ag 2 amorphous alloy
Source abstract
Abstract
Abstract The present study shows that nanoporous GeOx supported Ag nanoparticle composite can be fabricated by one-pot dealloying of (Al0.6Ge0.3Mn0.1)98Ag2 amorphous alloy. As-melt-spun (Al0.6Ge0.3Mn0.1)98Ag2 precursor alloy consists of Ag3Al nanoparticles embedded in the amorphous matrix. Immersion of precursor alloy in 5 wt% HCl solution leads to simultaneous dealloying of amorphous matrix and Ag3Al nanoparticles. After dealloying process, Al and Mn atoms are almost completely dissolved out from the precursor alloy, forming a composite nanoporous structure consisting of Ag nanoparticles dispersed on nanoporous GeOx.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanoporous metals and alloys · Electrocatalysts for Energy Conversion · Anodic Oxide Films and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Low temperature CO oxidation over unsupported nanoporous gold10.1021/ja0675503 ↗
2. Nanoporous gold as an active low temperature catalyst toward CO oxidation in hydrogen-rich stream
3. Nanoporous plasmonic metamaterials10.1002/adma.200701899 ↗
4. Surface-chemistry-driven actuation in nanoporous gold10.1038/nmat2335 ↗
5. Correlation of the structure and applications of dealloyed nanoporous metals in catalysis and energy conversion/storage10.1039/C4NR05778C ↗
6. Dealloying of Cu-based metallic glasses in acidic solutions: products and energy storage applications10.3390/nano5020697 ↗
7. Generalized fabrication of nanoporous metals (Au, Pd, Pt, Ag, and Cu) through chemical dealloying10.1021/jp811445a ↗
8. A general dealloying route to synthesize nanoporous non-noble metals10.1166/jnn.2013.5948 ↗
9. The microstructure and dealloying kinetics of a Cu-Mn alloy10.1557/JMR.1994.2878 ↗
10. Uniform evolution of nanoporosity on amorphous Ti–Cu alloys10.1166/jnn.2014.9444 ↗
11. Fabrication of nanoporous copper by dealloying of amorphous Ti–Cu–Ag alloys10.1016/j.jallcom.2013.01.087 ↗
12. Synthesis of nanoporous copper by dealloying of Al-Cu-Mg amorphous alloys in acidic solution: the effect of nickel10.1016/j.corsci.2011.01.033 ↗
13. Nanoporous metal/oxide hybrid electrodes for electrochemical supercapacitors10.1038/nnano.2011.13 ↗
14. Nanoporous Ag–ZrO 2 composites prepared by chemical dealloying for borohydride electro-oxidation10.1016/j.ijhydene.2014.07.102 ↗
15. Tailored platinum-nickel nanostructures on zirconia developed by metal casting, internal oxidation and dealloying10.1016/j.corsci.2016.06.010 ↗
16. Evolution of palladium/copper oxide–titanium dioxide nanostructures by dealloying and their catalytic performance for methanol electro-oxidation10.1016/j.jpowsour.2014.10.147 ↗
17. Hierarchical nanoporous metal/metal-oxide composite by dealloying metallic glass for high-performance energy storage10.1016/j.corsci.2015.04.003 ↗
18. Formation of nano-porous GeO x by de-alloying of an Al–Ge–Mn amorphous alloy10.1016/j.scriptamat.2015.03.022 ↗
19. Oxidation of Ge(100) and Ge(111) surfaces: an UPS and XPS study10.1016/0039-6028(94)00746-2 ↗
20. The nature of atomic oxygen species on silver: photoelectron spectroscopy and X-ray adsorption studies10.1103/PhysRevB.67.235422 ↗
21. Structural study of amorphous Ge50Al40Cr10 alloy10.1143/JPSJ.68.2298 ↗
22. Amorphous, nanoquasicrystalline and nanocrystalline alloys in Al-based systems10.1016/S0079-6425(98)00005-X ↗
23. Hultgren · 1973
24. Structural and energetic asymmetry in liquid Ag–Al alloys10.1080/00319101003699008 ↗
25. Dealloying of noble-metal alloy nanoparticles10.1021/nl500377g ↗
26. Colloidal silver catalysts for oxidation of ethylene10.1016/S1381-1169(98)00262-3 ↗
27. Effect of SO2 on the activity of Ag/γ-Al2O3 catalysts for NOx reduction in lean conditions10.1016/j.apcatb.2004.11.027 ↗
28. Combustion activity of Ag/CeO2 composite catalyst10.1016/S0926-860X(99)00344-0 ↗