Low temperature fracture of fine grain sintered molybdenum with transition metal carbides

2000 ◽  
Vol 55 (3) ◽  
pp. 37
Keyword(s):  
Low Temperature ◽  
Transition Metal ◽  
Metal Carbides ◽  
Transition Metal Carbides ◽  
Fine Grain ◽  
Temperature Fracture

Facile, low-temperature synthesis of tungsten carbide (WC) flakes for the sensitive and selective electrocatalytic detection of dopamine in biological samples

2019 ◽  
Vol 6 (8) ◽  
pp. 2024-2034 ◽  
Author(s):  
Muthaiah Annalakshmi ◽  
Paramasivam Balasubramanian ◽  
Shen-Ming Chen ◽  
Tse-Wei Chen ◽  
Pei-Hung Lin
Keyword(s):  
Low Temperature ◽  
Transition Metal ◽  
Tungsten Carbide ◽  
Biological Samples ◽  
Electronic Conductivity ◽  
Metal Carbides ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Transition Metal Carbides ◽  
Electrochemical Applications

Transition metal carbides have shown potential for use in electrochemical applications due to their excellent electronic conductivity, stability and electrocatalysis.

Low-temperature electrical resistivity of transition-metal carbides

1988 ◽  
Vol 68 (4) ◽  
pp. 387-390 ◽  
Author(s):  
C.Y. Allison ◽  
C.B. Finch ◽  
M.D. Foegelle ◽  
F.A. Modine
Keyword(s):  
Electrical Resistivity ◽  
Low Temperature ◽  
Transition Metal ◽  
Metal Carbides ◽  
Transition Metal Carbides

Nanocomposite Thin Films of Transition Metal Carbides Fabricated Using Pulsed Laser Deposition

1996 ◽  
Vol 457 ◽  
Author(s):  
W. F. Brock ◽  
J. E. Krzanowski ◽  
R. E. Leuchtner
Keyword(s):  
Transition Metal ◽  
Pulsed Laser Deposition ◽  
Binary Systems ◽  
Pulsed Laser ◽  
Amorphous Structure ◽  
Laser Deposition ◽  
Metal Carbides ◽  
Transition Metal Carbides ◽  
Fine Grain ◽  
Transmission Electron

ABSTRACTA study has been conducted on the pulsed laser deposition (PLD) of transition metal carbides in order to examine alloying and phase formation in binary systems. Alternating layers of TiC/ZrC and ZrC/VC were deposited at 400 C and 5 mTorr Ar with nominal period thicknesses of 0.6 nm, 10.0 nm, and 50.0 nm. ZrC/VC x-ray diffraction analysis showed that the alloys were amorphous and the TiC/ZrC alloys were crystalline. The thicker films showed a higher degree of phase separation of the two compounds. Transmission electron microscopy confirmed the amorphous structure in the 0.6 nm ZrC/VC film, while the 50.0 nm film showed a layered structure and extremely fine grain size.

Tuning Transition Metal Carbides Activity by Surface Metal Alloying: Case Study on CO2 Capture and Activation

2018 ◽  
Author(s):  
Marti Lopez ◽  
Luke Broderick ◽  
John J Carey ◽  
Francesc Vines ◽  
Michael Nolan ◽  
...  
Keyword(s):  
Transition Metal ◽  
Co2 Capture ◽  
Density Functional ◽  
Deep Understanding ◽  
Metal Carbides ◽  
Transition Metal Carbides ◽  
Adsorption Sites ◽  
Surface Metal ◽  
A Minor

<div>CO2 is one of the main actors in the greenhouse effect and its removal from the atmosphere is becoming an urgent need. Thus, CO2 capture and storage (CCS) and CO2 capture and usage (CCU) technologies are intensively investigated as technologies to decrease the concentration</div><div>of atmospheric CO2. Both CCS and CCU require appropriate materials to adsorb/release and adsorb/activate CO2, respectively. Recently, it has been theoretically and experimentally shown that transition metal carbides (TMC) are able to capture, store, and activate CO2. To further improve the adsorption capacity of these materials, a deep understanding of the atomic level processes involved is essential. In the present work, we theoretically investigate the possible effects of surface metal doping of these TMCs by taking TiC as a textbook case and Cr, Hf, Mo, Nb, Ta, V, W, and Zr as dopants. Using periodic slab models with large</div><div>supercells and state-of-the-art density functional theory based calculations we show that CO2 adsorption is enhanced by doping with metals down a group but worsened along the d series. Adsorption sites, dispersion and coverage appear to play a minor, secondary constant effect. The dopant-induced adsorption enhancement is highly biased by the charge rearrangement at the surface. In all cases, CO2 activation is found but doping can shift the desorption temperature by up to 135 K.</div>

scholarly journals Predicting the Effect of Dopants on CO2 Adsorption in Transition Metal Carbides: Case Study on TiC (001)

2020 ◽  
Vol 124 (29) ◽  
pp. 15969-15976 ◽  
Author(s):  
Martí López ◽  
Francesc Viñes ◽  
Michael Nolan ◽  
Francesc Illas
Keyword(s):  
Transition Metal ◽  
Co2 Adsorption ◽  
Metal Carbides ◽  
Transition Metal Carbides
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