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 - Funding Information:
This work was funded by DGAPA-UNAM (PAPIIT project IN 115212), FQ-UNAM (PAIP 5000-9039) and the BisNano project from European Community Seven Framework Programme (FP7-NMP-2010-EU-MEXICO), and CONACyT, under Grant Agreements number 263878, 125141, and SEP-CB-132094, respectively. V.-F.R.-R. thanks CONACyT for the Ph.D. scholar fellowship (number 255237). I.Z.-D. is grateful for the postdoctoral fellowship awards from CONACyT (project number 174247), ICyTDF, and BisNano. M.J.A.-J. thanks the grant from the National Institute on Minority Health and Health Disparities (G12MD007591) from the National Institutes of Health. We acknowledge Dr. Edilso Reguera-Ruiz (CICATA-Legaria, IPN) for the support with Raman spectroscopy and DSC measurements; we also acknowledge Ivań Puente-Lee for helping with SEM and TEM experiments as well as Professor Antonio Campero-Celis and Dr. Patricia Castillo-Ocampo (UAM-Iztapalapa) for Z-contrast facilities. We express deep appreciation to Dr. Mou Pal, B.Sc. Silvia Beatriz Medina Tato, and M.Sc. Juan Rizo for their careful manuscript language review.
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.
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U2 - 10.1021/acs.jpcc.6b11260
DO - 10.1021/acs.jpcc.6b11260
M3 - Article
AN - SCOPUS:85035108273
SN - 1932-7447
VL - 121
SP - 940
EP - 949
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 1
ER -