Author: Alfred Harper CurtisPublisher:
ISBN:
Category : Gold
Languages : en
Pages : 48
Book Description
Gold-quartz Reduction
Author: Alfred Harper CurtisPublisher:
ISBN:
Category : Gold
Languages : en
Pages : 48
Book Description
Minutes of Proceedings of the Institution of Civil Engineers
Author: Institution of Civil Engineers (Great Britain)Publisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 552
Book Description
The Metallurgy of Gold
Author: Thomas Kirke RosePublisher:
ISBN:
Category : Gold
Languages : en
Pages : 528
Book Description
The Metallurgy of Gold
Author: Sir Thomas Kirke RosePublisher:
ISBN:
Category : Gold
Languages : en
Pages : 618
Book Description
The Metallurgy of Gold. Being One of a Series of Treatises on Metallurgy, Written by Associates of the Royal School of Mines
Author: T. Kirke RosePapers on Gold Extraction
Author: Frequency Behavior of a Quartz Crystal Microbalance with Nanoporous Gold Electrodes Exposed to Selected Nonelectrolyte Solutions
Author: Maria Salvacion A. EsmallaPublisher:
ISBN:
Category :
Languages : en
Pages : 99
Book Description
Nanoporous gold film (NPGF) exhibits extraordinary physical and chemical properties different from the bulk material. NPGF also shows an enhancement in its performance properties and high catalytic. This behavior can be attributed to the high surface-to-volume ratio, high surface energy and easy electron transfer. Indeed, there is a need to modify the gold quartz crystal from bulk into nanoporous gold film. A quartz crystal microbalance with nanoporous gold electrodes was fabricated by electrooxidation and consequent reduction reaction with glucose. SEM and AFM micrograph revealed a nanopore diameter ranges from 69 to 72nm, with an average depth of roughness of 6 nm. Cyclic voltammetry was also conducted on the modified gold quartz crystal. The peak was assumed to be adsorption of OHads from H2O or OH at the gold adatom sites. The modified gold quartz crystal gave a stable response (RSD = 9.40 x 10-50/0, n=3), exhibited good reversibility and repeatability (RSD = 0.125%, n=3), good reproducibility (RSD = 0.985%) and fast response time (tr=2 to 3 minutes). The surface modification of gold quartz crystal also rendered its amplification of frequency shift, enhancement of sensitivity and high linearity.
British Mining
Author: Robert HuntPublisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 980
Book Description
Manual of Mineralogy, Including Observation on Mines, Rocks, Reduction of Ores
Author: James Dwight DanaPublisher:
ISBN:
Category : Mineralogy
Languages : en
Pages : 440
Book Description
Author: