Effect of Pt and Pd additives on the state of the surface layer and catalytic activity of niobium oxides in the oxidation of hydrogen

2009 ◽  
Vol 45 (5) ◽  
pp. 331-337 ◽  
Author(s):  
V. V. Lesnyak ◽  
V. K. Yatsimirskii ◽  
T. D. Kinder ◽  
O. Yu. Boldyreva
Keyword(s):  
Surface Layer ◽  
Catalytic Activity ◽  
The State ◽  
Niobium Oxides ◽  
Oxidation Of Hydrogen

Properties of the surface layer and catalytic activity of Ta2O5 with Pt or Pd additives in the oxidation of hydrogen

2008 ◽  
Vol 44 (3) ◽  
pp. 189-194
Author(s):  
V. V. Lesnyak ◽  
V. K. Yatsimirskii ◽  
O. Yu. Boldyreva ◽  
T. D. Kinder
Keyword(s):  
Surface Layer ◽  
Catalytic Activity ◽  
Oxidation Of Hydrogen

Effect of diamond burnishing parameters on the state of the processed surface layer of billets made of high-strength "30ХГСН2А-ВД" steel

2020 ◽  
pp. 82-86
Author(s):  
A.N. Shvetsov ◽  
D.L. Skuratov
Keyword(s):  
Surface Layer ◽  
Residual Stresses ◽  
Strain Hardening ◽  
Processing Speed ◽  
Synthetic Diamond ◽  
High Strength ◽  
The State ◽  
Diamond Burnishing

The influence of the burnishing force, tool radius, processing speed and feed on the distribution of circumferential and axial residual strses, microhardness and the depth of strain hardening in the surface layer when pr ssing of "30ХГСН2А-ВД" steel with synthetic diamond "ACB-1" is considered. Empirical dependencies determining these parameters are given. Keywords diamond burnishing, strain hardening depth, circumferential residual stresses, axial residual stresses, microhardness. [email protected], [email protected]

Effect of Pt and Pd Additives on the Hydrogen Sensitivity of Semiconductor Sensors and Their Catalytic Activity in Oxidation of Hydrogen

2005 ◽  
Vol 41 (5) ◽  
pp. 318-322
Author(s):  
V. K. Yatsimirskii ◽  
N. P. Maksimovich ◽  
O. Yu. Boldyreva ◽  
N. V. Nikitina ◽  
A. G. Telegeeva
Keyword(s):  
Catalytic Activity ◽  
Oxidation Of Hydrogen ◽  
Semiconductor Sensors

Pt/SO4 2−−ZrO2: The state of platinum and its relation with catalytic activity inn-hexane isomerization

1998 ◽  
Vol 63 (1) ◽  
pp. 33-40 ◽  
Author(s):  
S. R. Vaudagna ◽  
R. A. Comelli ◽  
N. S. Fígoli
Keyword(s):  
Catalytic Activity ◽  
The State

Hydrothermal synthesis of octahedra-based layered niobium oxide and its catalytic activity as a solid acid

2014 ◽  
Vol 4 (12) ◽  
pp. 4250-4257 ◽  
Author(s):  
Toru Murayama ◽  
Junli Chen ◽  
Jun Hirata ◽  
Keeko Matsumoto ◽  
Wataru Ueda
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Layered Structure ◽  
Niobium Oxide ◽  
Solid Acid ◽  
Structure Type ◽  
Niobium Oxides

Layered-structure-type niobium oxides were synthesized by the hydrothermal method by using ammonium niobium oxalate as a precursor.

Effect of the State of a Surface Layer on the Properties of Pd–P Catalysts in the Hydrogenation of Alkylanthraquinones

2019 ◽  
Vol 60 (6) ◽  
pp. 808-817 ◽  
Author(s):  
L. B. Belykh ◽  
T. P. Sterenchuk ◽  
N. I. Skripov ◽  
V. V. Akimov ◽  
V. L. Tauson ◽  
...  
Keyword(s):  
Surface Layer ◽  
The State

scholarly journals VI. The effect of hydrogen on the discharge of negative electricity from hot platinum

1908 ◽  
Vol 208 (427-440) ◽  
pp. 247-273 ◽  
Keyword(s):  
Surface Layer ◽  
The State ◽  
Great Length ◽  
Series Of Experiments ◽  
The Wire

The effect of hydrogen on the discharge of negative electricity from hot platinum was examined by the writer in 1903 (‘Phil. Trans.,’ A, 352, vol. 202, 1903); it was found to produce a very large increase in the current carried by the discharge. At pressures below 0·1 millim. of mercury the leak was found to increase with the pressure and to fall when the pressure was reduced. The experiments in the paper just referred to were all done with nearly new platinum wires which had not been heated in the gas for any great length of time, because it was known that long continued heating caused the wire to disintegrate, its surface becoming covered with a network of cracks. The present paper contains an account of a series of experiments in which wires were heated for long periods in hydrogen, so that any gradual changes in the effect of the hydrogen could be observed. It appears that continued heating in hydrogen alters the character of the effects observed, so that the behaviour of an old wire may be very different from that of a new one. In the previous paper I suggested that the effect of hydrogen was due to the presence of hydrogen in the surface layer of the platinum, and this view appeared to be supported by the facts. Professor O. W. Richardson (‘Phil. Trans.,’ A, 413, vol. 207, 1906) puts forward a different theory, viz., that the hydrogen alters the state of the platinum, so that the effect may remain even after the removal of all the hydrogen.

Reviving catalytic activity of nitrides by the doping of the inert surface layer to promote polysulfide conversion in lithium-sulfur batteries

Nano Energy ◽  
2019 ◽  
Vol 60 ◽  
pp. 305-311 ◽  
Author(s):  
Boyu Hao ◽  
Huan Li ◽  
Wei Lv ◽  
Yunbo Zhang ◽  
Shuzhang Niu ◽  
...  
Keyword(s):  
Surface Layer ◽  
Catalytic Activity ◽  
Lithium Sulfur Batteries ◽  
Inert Surface ◽  
Lithium Sulfur

Effect of Pt, Pd, and Cs+ Additives on the Surface State and Catalytic Activity of WO3 in Oxidation of Hydrogen

2005 ◽  
Vol 41 (2) ◽  
pp. 135-138 ◽  
Author(s):  
V. K. Yatsimirskii ◽  
V. V. Lesnyak ◽  
I. N. Gut ◽  
O. Yu. Boldyreva
Keyword(s):  
Catalytic Activity ◽  
Surface State ◽  
Oxidation Of Hydrogen
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