TY - JOUR
T1 - Can silver be alloyed with bismuth on nanoscale? An optical and structural approach
AU - Ruiz-Ruiz, Víctor Fabián
AU - Zumeta-Dubé, Inti
AU - Díaz, David
AU - Josefina Arellano-Jiménez, M.
AU - José-Yacamán, Miguel
N1 - Publisher Copyright:
© 2016 American Chemical Society.
PY - 2017/1/12
Y1 - 2017/1/12
N2 - The bulk AgBi alloy system comprises a wide forbidden range of Ag solubility limited to a negligible molar fraction. In this contribution it is unambiguously demonstrated that Ag and Bi, elements with various in-common potential applications, can be alloyed on nanoscale, which is hugely different from the bulk form. These nanostructured Ag-Bi alloys are prepared by a mechano-chemistry pathway under normal conditions and without large amounts of solvents. The characterization of the nanoparticles by combination of UV-visible absorption and Raman spectroscopies as well as SEM, HAADF-STEM, XRD, and DSC lead to the finding of these sui generis nanoalloys and the unprecedented proposal of a predominantly atomic mixed alloyed structure for the AgxBi1-x (0.1 ≤ x ≤ 0.5) clusters. This arrangement allows the coexistence of bulk-like lattices of zerovalent Bi and Ag. These resulting nanoparticles can effectively degrade NO; however, they are rapidly oxidized.
AB - The bulk AgBi alloy system comprises a wide forbidden range of Ag solubility limited to a negligible molar fraction. In this contribution it is unambiguously demonstrated that Ag and Bi, elements with various in-common potential applications, can be alloyed on nanoscale, which is hugely different from the bulk form. These nanostructured Ag-Bi alloys are prepared by a mechano-chemistry pathway under normal conditions and without large amounts of solvents. The characterization of the nanoparticles by combination of UV-visible absorption and Raman spectroscopies as well as SEM, HAADF-STEM, XRD, and DSC lead to the finding of these sui generis nanoalloys and the unprecedented proposal of a predominantly atomic mixed alloyed structure for the AgxBi1-x (0.1 ≤ x ≤ 0.5) clusters. This arrangement allows the coexistence of bulk-like lattices of zerovalent Bi and Ag. These resulting nanoparticles can effectively degrade NO; however, they are rapidly oxidized.
UR - http://www.scopus.com/inward/record.url?scp=85035108273&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.6b11260
DO - 10.1021/acs.jpcc.6b11260
M3 - Artículo
SN - 1932-7447
VL - 121
SP - 940
EP - 949
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 1
ER -