Physicochemical Properties of Transition Metals and of Their Alloys and Compounds

1973 ◽  
pp. 33-272
Author(s):  
G. V. Samsonov ◽  
I. F. Pryadko ◽  
L. F. Pryadko
Keyword(s):  
Transition Metals ◽  
Physicochemical Properties ◽  
Alloys And Compounds

Photocatalytic Activities of Transition Metal-Doped TiO2 Nano-Powders by Sonochemical Method and their Physicochemical Properties

2011 ◽  
Vol 695 ◽  
pp. 129-132 ◽  
Author(s):  
Ah Young Choi ◽  
Yamaguchi Tokutaro ◽  
Sung Hun Cho ◽  
Chul Hee Han
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Physicochemical Properties ◽  
Photocatalytic Oxidation ◽  
Cell Model ◽  
Sonochemical Method ◽  
Photocatalytic Activities ◽  
Metal Doped ◽  
Binding Energy Calculations

With respect to metal doping into TiO2, the doping limits for V, Cr, Zr, Nb, Mo, and W are predicted to be higher than other transition metals according to the binding energy calculations in a unit cell model of anatase TiO2, which suggests that Cr and W can be doped into anatase structure more easily than Ag or Pt, for example. Our investigation has twofold research objectives. One is to prepare metal-doped TiO2 nano-powders from these transition metals, and the other is to test photocatalytic activity of each resulting powder. For the former, sonochemical process has been used to produce Cr-doped, W-doped, Ag-doped, and Pt-doped TiO2 nanoparticles. For the latter, we have performed photocatalytic oxidation of methylene blue. The combined results of the morphology and photocatalytic activites have enabled characterization of the physicochemical properties of these transition metal-doped nanoparticles.

scholarly journals Directly Predicting Water Quality Criteria from Physicochemical Properties of Transition Metals

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ying Wang ◽  
Fengchang Wu ◽  
Yunsong Mu ◽  
Eddy Y. Zeng ◽  
Wei Meng ◽  
...  
Keyword(s):  
Water Quality ◽  
Transition Metals ◽  
Physicochemical Properties ◽  
Quality Criteria ◽  
Water Quality Criteria

scholarly journals SYNTHESIS AND STUDY OF PHYSICOCHEMICAL PROPERTIES OF CAST IRON WITH FUNCTIONAL PROPERTIES FOR WORKING PART OF BIMETALLIC ROLLING PINS

2021 ◽  
Vol 19 (2) ◽  
pp. 113-119
Author(s):  
R.I. Kerimov ◽  
◽  
I.B. Bakhtiyarly ◽  
S.N. Namazov ◽  
F.T. Guliyev ◽  
...  
Keyword(s):  
Cast Iron ◽  
Transition Metals ◽  
Physicochemical Properties ◽  
Functional Properties ◽  
Physicochemical Analysis ◽  
Molten Iron ◽  
X Ray ◽  
Complex Methods

A new functional cast iron alloyed with transition metals was synthesized for the manufacture of the working part of rolls. Its properties were studied using complex methods of physicochemical analysis (DTA, X-ray, MSA and measurement of hardness and microhardness). It was found that traces of martenicite, cementite, carbon (graphite) and α-ferritin are released in the subsolidus during cooling of molten iron in the studied concentration range (2.7 ÷ 3.5 %wt C. It includes transition metals as an alloying agent increasing resistance of cast iron to twisting, corrosion and destruction during operation.

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