scholarly journals The Electrochemistry of Metal Carbides: From Salt Melt Synthesis to Voltammetry of Microparticles

2018 ◽  
Author(s):  
Rachel Lee Tani Walker
Keyword(s):  
Metal Carbides ◽  
Voltammetry Of Microparticles ◽  
Salt Melt ◽  
Melt Synthesis

scholarly journals Salt melt synthesis of ceramics, semiconductors and carbon nanostructures

2013 ◽  
Vol 42 (21) ◽  
pp. 8237 ◽  
Author(s):  
Xiaofeng Liu ◽  
Nina Fechler ◽  
Markus Antonietti
Keyword(s):  
Carbon Nanostructures ◽  
Salt Melt ◽  
Melt Synthesis

Salt-melt synthesis of B2O3, P2O5 and V2O5 modified high-alumina mullite nanocomposites with promising photoluminescence properties

2017 ◽  
Vol 4 (10) ◽  
pp. 105005 ◽  
Author(s):  
Arpan Kool ◽  
Pradip Thakur ◽  
Biswajoy Bagchi ◽  
Nur Amin Hoque ◽  
Somtirtha Banerjee ◽  
...  
Keyword(s):  
High Alumina ◽  
Photoluminescence Properties ◽  
Salt Melt ◽  
Melt Synthesis

Salt melt synthesis of Chlorella-derived nitrogen-doped porous carbon with atomically dispersed CoN4 sites for efficient oxygen reduction reaction

2021 ◽  
Vol 586 ◽  
pp. 498-504
Author(s):  
Danyang Wu ◽  
Jinwen Hu ◽  
Chao Zhu ◽  
Jiangwei Zhang ◽  
Hongyu Jing ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Salt Melt ◽  
Melt Synthesis

ChemInform Abstract: Salt Melt Synthesis of Ceramics, Semiconductors and Carbon Nanostructures

ChemInform ◽  
2013 ◽  
Vol 45 (2) ◽  
pp. no-no
Author(s):  
Xiaofeng Liu ◽  
Nina Fechler ◽  
Markus Antonietti
Keyword(s):  
Carbon Nanostructures ◽  
Salt Melt ◽  
Melt Synthesis

scholarly journals Facile Preparation of Nitrogen-doped Porous Carbons via Salt Melt Synthesis with Efficient Catalytic Desulfurization Performance

2017 ◽  
Vol 32 (7) ◽  
pp. 770 ◽  
Author(s):  
YU Zheng-Fa ◽  
WANG Xu-Zhen ◽  
HOU Ya-Nan ◽  
ZHAO Zong-Bin ◽  
Rui Li ◽  
...  
Keyword(s):  
Porous Carbons ◽  
Nitrogen Doped ◽  
Salt Melt ◽  
Melt Synthesis ◽  
Facile Preparation

Low temperature salt melt synthesis, thermal and optical studies of AZrO3:Eu3+,Tb3+ perovskite phosphors

Optik ◽  
2020 ◽  
Vol 204 ◽  
pp. 164125 ◽  
Author(s):  
Shambhavi Katyayan ◽  
Sadhana Agrawal
Keyword(s):  
Low Temperature ◽  
Optical Studies ◽  
Salt Melt ◽  
Melt Synthesis

Salt melt synthesis of curved nitrogen-doped carbon nanostructures: ORR kinetics boost

2018 ◽  
Vol 435 ◽  
pp. 543-551 ◽  
Author(s):  
Maria K. Rybarczyk ◽  
Emilia Gontarek ◽  
Marek Lieder ◽  
Maria-Magdalena Titirici
Keyword(s):  
Carbon Nanostructures ◽  
Nitrogen Doped ◽  
Salt Melt ◽  
Orr Kinetics ◽  
Melt Synthesis ◽  
Nitrogen Doped Carbon

Effect of a Complex Heat Treatment on the Structure of 300M Steel

1981 ◽  
Vol 39 ◽  
pp. 312-313
Author(s):  
R. Padmanabhan ◽  
W. E. Wood
Keyword(s):  
Heat Treatment ◽  
Metal Carbides ◽  
Austenite Grain Size ◽  
300M Steel ◽  
Heat Treated ◽  
Strain Fracture ◽  
Prior Austenite Grain Size ◽  
Short Time ◽  
Final Tempering ◽  
Similar Yield

Intermediate high temperature tempering prior to subsequent reaustenitization has been shown to double the plane strain fracture toughness as compared to conventionally heat treated UHSLA steels, at similar yield strength levels. The precipitation (during tempering) of metal carbides and their subsequent partial redissolution and refinement (during reaustenitization), in addition to the reduction in the prior austenite grain size during the cycling operation have all been suggested to contribute to the observed improvement in the mechanical properties. In this investigation, 300M steel was initially austenitized at 1143°K and then subjected to intermediate tempering at 923°K for 1 hr. before reaustenitizing at 1123°K for a short time and final tempering at 583°K. The changes in the microstructure responsible for the improvement in the properties have been studied and compared with conventionally heat treated steel. Fig. 1 shows interlath films of retained austenite produced during conventionally heat treatment.

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>

Graphene Supported Tungsten Carbide as Catalyst for Electrochemical Reduction of CO2

2019 ◽  
Author(s):  
Sahithi Ananthaneni ◽  
Rees Rankin
Keyword(s):  
Tungsten Carbide ◽  
Electrochemical Reduction ◽  
Low Cost ◽  
Co2 Reduction ◽  
Platinum Group Metal ◽  
Reduction Reaction ◽  
Metal Carbides ◽  
Depth Study ◽  
Reduction Of Co2 ◽  
Co2 Reduction Reaction

<div>Electrochemical reduction of CO2 to useful chemical and fuels in an energy efficient way is currently an expensive and inefficient process. Recently, low-cost transition metal-carbides (TMCs) are proven to exhibit similar electronic structure similarities to Platinum-Group-Metal (PGM) catalysts and hence can be good substitutes for some important reduction reactions. In this work, we test graphenesupported WC (Tungsten Carbide) nanocluster as an electrocatalyst for the CO2 reduction reaction. Specifically, we perform DFT studies to understand various possible reaction mechanisms and determine the lowest thermodynamic energy landscape of CO2 reduction to various products such as CO, HCOOH, CH3OH, and CH4. This in-depth study of reaction energetics could lead to improvements and develop more efficient electrocatalysts for CO2 reduction.<br></div>

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