Nanoscale Curvature-Induced Hydrogen Adsorption in Alkali Metal Doped Carbon Nanomaterials

2008 ◽  
Vol 112 (40) ◽  
pp. 15670-15679 ◽  
Author(s):  
K. R. S. Chandrakumar ◽  
K. Srinivasu ◽  
Swapan K. Ghosh
Keyword(s):  
Alkali Metal ◽  
Carbon Nanomaterials ◽  
Hydrogen Adsorption ◽  
Metal Doped

Computational Investigation of Hydrogen Adsorption by Alkali-Metal-Doped Organic Molecules: Role of Aromaticity

ChemPhysChem ◽  
2009 ◽  
Vol 10 (2) ◽  
pp. 427-435 ◽  
Author(s):  
Kancharlapally Srinivasu ◽  
Kuttay R. S. Chandrakumar ◽  
Swapan K. Ghosh
Keyword(s):  
Alkali Metal ◽  
Organic Molecules ◽  
Hydrogen Adsorption ◽  
Computational Investigation ◽  
Metal Doped

Processing of Iridium Doped Materials and Experimental Investigation of Their Hydrogen Adsorption Capacity

2018 ◽  
Vol 69 (6) ◽  
pp. 1468-1472
Author(s):  
Radu Mirea ◽  
Mihai Iordoc ◽  
Gabriela Oprina ◽  
Gimi Rimbu
Keyword(s):  
Adsorption Capacity ◽  
Hydrogen Adsorption ◽  
Weight Ratio ◽  
H2 Adsorption ◽  
Cyclic Voltametry ◽  
Physical Chemical ◽  
Good Consistency ◽  
Metal Doped ◽  
And Storage ◽  
Poly Aniline

The paper aims to present the investigation of H2 adsorption capacity in metal doped nanostructured materials, by using two methods. Carbonic materials are considered to be one of the most promising materials to be used for hydrogen adsorption and storage. They have different applications and one of the most important is considered to be fuel cells technology. By using metals for doping these materials, the adsorption capacity increases, thus approaching the target of 6.5% weight ratio of H2 adsorbed in a substrate. Within these investigations multi-wall nanotubes and poly-aniline have been used as substrates. The poly-aniline has been prepared and doped in laboratory while the nanotubes used in experiments have been purchased from the market and afterwards doped in laboratory. The doping procedure consists of a physical-chemical method which involves salts of the metal for doping and the use of ultrasounds in order to activate the substrate for doping. The adsorption capacity of the carbonic materials has been determined by using spill over phenomena in a PCT Pro-User apparatus, provided by SETARAM and also by cyclic voltametry, by using VoltaLab-40 apparatus. In order to investigate the adsorption capacity of the nanostructured carbonic materials, the experiments have been carried out at different pressures. Both substrates have been characterized in order to determine their porosity, BET surface and structure. The collected data have been processed by using the PCT Pro-User apparatus�s software. The results have been compared with the available data from literature and a good consistency was found.

scholarly journals Mechanochemically Synthetized PAN-Based Co-N-Doped Carbon Materials as Electrocatalyst for Oxygen Evolution Reaction

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 290
Author(s):  
Paulette Gómez-López ◽  
José Ángel Salatti-Dorado ◽  
Daily Rodríguez-Padrón ◽  
Manuel Cano ◽  
Clemente G. Alvarado-Beltrán ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Photoelectron Spectroscopy ◽  
Carbon Nanomaterials ◽  
Carbon Materials ◽  
Catalytic Performance ◽  
X Ray Diffraction ◽  
New Class ◽  
Electrocatalytic Performance ◽  
Alkaline Environments ◽  
Metal Doped

We report a new class of polyacrylonitrile (PAN)-based Co-N-doped carbon materials that can act as suitable catalyst for oxygen evolution reactions (OER). Different Co loadings were mechanochemically added into post-consumed PAN fibers. Subsequently, the samples were treated at 300 °C under air (PAN-A) or nitrogen (PAN-N) atmosphere to promote simultaneously the Co3O4 species and PAN cyclization. The resulting electrocatalysts were fully characterized and analyzed by X-ray diffraction (XRD) and photoelectron spectroscopy (XPS), transmission (TEM) and scanning electron (SEM) microscopies, as well as nitrogen porosimetry. The catalytic performance of the Co-N-doped carbon nanomaterials were tested for OER in alkaline environments. Cobalt-doped PAN-A samples showed worse OER electrocatalytic performance than their homologous PAN-N ones. The PAN-N/3% Co catalyst exhibited the lowest OER overpotential (460 mV) among all the Co-N-doped carbon nanocomposites, reaching 10 mA/cm2. This work provides in-depth insights on the electrocatalytic performance of metal-doped carbon nanomaterials for OER.

scholarly journals First-principles study of hydrogen adsorption in metal-doped COF-10

2010 ◽  
Vol 133 (15) ◽  
pp. 154706 ◽  
Author(s):  
Miao Miao Wu ◽  
Qian Wang ◽  
Qiang Sun ◽  
Puru Jena ◽  
Yoshiyuki Kawazoe
Keyword(s):  
First Principles ◽  
Hydrogen Adsorption ◽  
First Principles Study ◽  
Metal Doped

scholarly journals Phase formation and magnetotransport of alkali metal doped Na0.75CoO2 thermoelectric oxide

2010 ◽  
Vol 107 (9) ◽  
pp. 09D716 ◽  
Author(s):  
P. Jood ◽  
G. Peleckis ◽  
X. L. Wang ◽  
S. X. Dou ◽  
H. Yamauchi ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Phase Formation ◽  
Thermoelectric Oxide ◽  
Metal Doped

Association and bound motion in alkali-metal-doped cadmium fluoride

1984 ◽  
Vol 29 (10) ◽  
pp. 5909-5919 ◽  
Author(s):  
D. R. Figueroa ◽  
J. J. Fontanella ◽  
M. C. Wintersgill ◽  
C. G. Andeen
Keyword(s):  
Alkali Metal ◽  
Cadmium Fluoride ◽  
Metal Doped
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