scholarly journals Leaching of the Mixture of Metallic Gold and Silver

2017 ◽  
Vol 26 (2) ◽  
pp. 39-45
Author(s):  
Weidong Xing ◽  
Manseung Lee
Keyword(s):  
Metallic Gold

Activated Metallic Gold as an Agent for Direct Methoxycarbonylation

2011 ◽  
Vol 133 (50) ◽  
pp. 20378-20383 ◽  
Author(s):  
Bingjun Xu ◽  
Robert J. Madix ◽  
Cynthia M. Friend
Keyword(s):  
Metallic Gold

197Au Mössbauer study of gold particles obtained by evaporation of metallic gold on Mylar

1998 ◽  
Vol 232-234 ◽  
pp. 644-649 ◽  
Author(s):  
L Stievano ◽  
S Santucci ◽  
L Lozzi ◽  
S Calogero ◽  
F.E Wagner
Keyword(s):  
Metallic Gold ◽  
Mössbauer Study ◽  
Gold Particles

Fabrication and Application of Polyethylenimine/Ca-Alginate Blended Hydrogel Fibers as High-Capacity Adsorbents for Recovery of Gold from Acidic Solutions

2017 ◽  
Vol 262 ◽  
pp. 103-106 ◽  
Author(s):  
John Kwame Bediako ◽  
Myung Hee Song ◽  
Yeoung Sang Yun
Keyword(s):  
High Capacity ◽  
Metallic Gold ◽  
X Ray Diffraction ◽  
Acidic Solutions ◽  
Xrd Study ◽  
Desorption Study ◽  
Alginate Fibers ◽  
Direct Adsorption ◽  
Ca Alginate ◽  
Alginate Matrix

High-capacity polyethylenimine (PEI)/Ca-alginate blended hydrogel fibers were fabricated via three steps, viz. electrostatic blending of PEI and alginate, ionotropic gelation of alginate and CaCl2, and fixing of PEI into the Ca-alginate matrix, using glutaraldehyde (GA) as a crosslinker. Two crosslinking approaches resulted in different stabilities and gold uptake capacities of the prepared sorbents. Post-crosslinking approach was more efficient than pre-crosslinking likely owing to the better crosslinking efficiency, leading to better stability and sorption capacity. Furthermore, X-ray diffraction (XRD) study revealed the reduction of Au (III) to metallic gold, Au (0) in the crosslinked fibers. The Au (0) predominancy was confirmed with a metal desorption study. The present study thus demonstrates the possibility of recovering metallic gold from aqueous solutions by direct adsorption-coupled-reduction approach using GA-crosslinked PEI/Ca-alginate fibers.

scholarly journals Selective Oxygen-Assisted Reactions of Alcohols and Amines Catalyzed by Metallic Gold: Paradigms for the Design of Catalytic Processes

ACS Catalysis ◽  
2016 ◽  
Vol 7 (2) ◽  
pp. 965-985 ◽  
Author(s):  
Michelle L. Personick ◽  
Robert J. Madix ◽  
Cynthia M. Friend
Keyword(s):  
Metallic Gold ◽  
Catalytic Processes

Metallic Gold-Incorporated Ni(OH)2 for Enhanced Water Oxidation in an Alkaline Medium: A Simple Wet-Chemical Approach

2021 ◽  
Author(s):  
Ragunath Madhu ◽  
Arun Karmakar ◽  
Kannimuthu Karthick ◽  
Selvasundarasekar Sam Sankar ◽  
Sangeetha Kumaravel ◽  
...  
Keyword(s):  
Alkaline Medium ◽  
Water Oxidation ◽  
Metallic Gold ◽  
Chemical Approach ◽  
Wet Chemical

Shape- and Symmetry-Dependent Mechanical Properties of Metallic Gold and Silver on the Nanoscale

Nano Letters ◽  
2014 ◽  
Vol 14 (2) ◽  
pp. 743-748 ◽  
Author(s):  
Mahmoud A. Mahmoud ◽  
Daniel O’Neil ◽  
Mostafa A. El-Sayed
Keyword(s):  
Mechanical Properties ◽  
Metallic Gold
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