Study on selective dissolution of gold in alkaline thiourea media

1997 ◽  
Vol 4 (2) ◽  
pp. 79-83 ◽  
Author(s):  
Liyuan Chai ◽  
Haiyun Zhong ◽  
Chuanfu Zhang ◽  
Masazumi Okido ◽  
Ryouichi Ichino
Keyword(s):  
Selective Dissolution ◽  
Alkaline Thiourea ◽  
Selective Dissolution Of Gold

Selective dissolution of gold in an alkaline thiourea solution by electrolysis

1997 ◽  
Vol 4 (2) ◽  
pp. 73-78 ◽  
Author(s):  
Chuanfu Zhang ◽  
Liyuan Chai ◽  
Haiyun Zhong ◽  
Masazumi Okido ◽  
Ryouichi Ichino
Keyword(s):  
Selective Dissolution ◽  
Alkaline Thiourea ◽  
Thiourea Solution ◽  
Selective Dissolution Of Gold

The Effects of Ion Implantation on the Surface Features of Inconel 600

1985 ◽  
Vol 43 ◽  
pp. 288-289
Author(s):  
John D. Rubio
Keyword(s):  
Grain Boundary ◽  
Ion Implantation ◽  
Nuclear Power ◽  
Power Plants ◽  
Surface Region ◽  
Selective Dissolution ◽  
Boundary Region ◽  
Near Surface ◽  
Inconel 600 ◽  
Steam Generator Tubing

The degradation of steam generator tubing at nuclear power plants has become an important problem for the electric utilities generating nuclear power. The material used for the tubing, Inconel 600, has been found to be succeptible to intergranular attack (IGA). IGA is the selective dissolution of material along its grain boundaries. The author believes that the sensitivity of Inconel 600 to IGA can be minimized by homogenizing the near-surface region using ion implantation. The collisions between the implanted ions and the atoms in the grain boundary region would displace the atoms and thus effectively smear the grain boundary.To determine the validity of this hypothesis, an Inconel 600 sample was implanted with 100kV N2+ ions to a dose of 1x1016 ions/cm2 and electrolytically etched in a 5% Nital solution at 5V for 20 seconds. The etched sample was then examined using a JEOL JSM25S scanning electron microscope.

Effects of ion implantation on the dissolution of minerals. Part II : selective dissolution

1987 ◽  
Vol 110 (1) ◽  
pp. 25-42 ◽  
Author(s):  
Jean-Claude Petit ◽  
Jean-Claude Dran ◽  
Gianantonio Della Mea
Keyword(s):  
Ion Implantation ◽  
Selective Dissolution ◽  
Dissolution Of Minerals

Facile method of selective dissolution for preparation of Co3O4/LaCoO3 as bifunctional catalyst for Al/Zn-air battery

2021 ◽  
Author(s):  
Shanshan Yan ◽  
Liyang Wan ◽  
Yejian Xue ◽  
Yan Wang ◽  
Guangjie Shao ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Surface Defects ◽  
Selective Dissolution ◽  
Bifunctional Catalyst ◽  
Catalytic Activities ◽  
Air Battery

Perovskites are promising catalysts for metal-air batteries because of their excellent intrinsic catalytic activities. However, the low specific surface area and less surface defects lead to low catalytic activities regarding...

Synergistic action of EmimAc and aqueous NaOH for selective dissolution of hemicellulose for cellulose purification

Cellulose ◽  
2021 ◽  
Vol 28 (3) ◽  
pp. 1331-1338
Author(s):  
Liufang Ni ◽  
Changmei Lin ◽  
Hui Zhang ◽  
Hai Huang ◽  
Qidu Deng ◽  
...  
Keyword(s):  
Selective Dissolution ◽  
Synergistic Action

Selective dissolution of uranium from Olympic Dam copper concentrates

1987 ◽  
Vol 18 (3) ◽  
pp. 367-382 ◽  
Author(s):  
R.J. Ragozzini ◽  
G.J. Sparrow
Keyword(s):  
Selective Dissolution ◽  
Olympic Dam

Ion track etching of polycarbonate membranes monitored by in situ small angle X-ray scattering

2021 ◽  
Author(s):  
Alexander Kiy ◽  
Christian Notthoff ◽  
Shankar Dutt ◽  
Mark Grigg ◽  
Andrea Hadley ◽  
...  
Keyword(s):  
High Precision ◽  
Small Angle ◽  
Selective Dissolution ◽  
X Ray ◽  
Ion Tracks ◽  
X Ray Scattering ◽  
Track Etching ◽  
Polycarbonate Membranes ◽  
Ray Scattering

In situ small angle X-ray scattering (SAXS) measurements of ion track etching of polycarbonate foils are used to directly monitor the selective dissolution of ion tracks with high precision, including...

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