Novel Layered Double Hydroxides Composites Membranes for Alkaline Methanol Fuel Cells

2011 ◽  
Keyword(s):  
Fuel Cells ◽  
Layered Double Hydroxides ◽  
Methanol Fuel Cells ◽  
Double Hydroxides

Use of layered double hydroxides to improve the triple phase boundary in anion-exchange membrane fuel cells

2010 ◽  
Vol 195 (19) ◽  
pp. 6500-6503 ◽  
Author(s):  
Kohei Miyazaki ◽  
Takeshi Abe ◽  
Koji Nishio ◽  
Haruyuki Nakanishi ◽  
Zempachi Ogumi
Keyword(s):  
Fuel Cells ◽  
Phase Boundary ◽  
Anion Exchange ◽  
Layered Double Hydroxides ◽  
Anion Exchange Membrane ◽  
Triple Phase Boundary ◽  
Double Hydroxides ◽  
Exchange Membrane

Development of Alkaline Fuel Cells Using Hydroxide-Ion Conductive Layered Double Hydroxides

2015 ◽  
Vol 69 (17) ◽  
pp. 385-389 ◽  
Author(s):  
K. Tadanaga ◽  
K. Igarashi ◽  
T. Kubota ◽  
A. Miura ◽  
M. Higuchi
Keyword(s):  
Fuel Cells ◽  
Layered Double Hydroxides ◽  
Alkaline Fuel Cells ◽  
Hydroxide Ion ◽  
Double Hydroxides

Role of Fe in the oxidation of methanol electrocatalyzed by Ni based layered double hydroxides: X-ray spectroscopic and electrochemical studies

RSC Advances ◽  
2016 ◽  
Vol 6 (112) ◽  
pp. 110976-110985 ◽  
Author(s):  
Ylea Vlamidis ◽  
Sonia Fiorilli ◽  
Marco Giorgetti ◽  
Isacco Gualandi ◽  
Erika Scavetta ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Layered Double Hydroxides ◽  
Electrochemical Studies ◽  
X Ray ◽  
Oxidation Of Methanol ◽  
Double Hydroxides

Ni-based LDHs for methanol direct fuel cells: the presence of Fe in the LDH structure enhances Ni activity.

Acceptorless amine dehydrogenation and transamination using Pd-doped layered double hydroxides

2018 ◽  
Author(s):  
Diana Ainembabazi ◽  
Nan An ◽  
Jinesh Manayil ◽  
Kare Wilson ◽  
Adam Lee ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Oxidation States ◽  
Secondary Amines ◽  
Primary Amines ◽  
Acid Dissolution ◽  
Oxidative Amination ◽  
Strong Function ◽  
Excellent Activity ◽  
High Yields ◽  
Double Hydroxides

<div> <p>The synthesis, characterization, and activity of Pd-doped layered double hydroxides (Pd-LDHs) for for acceptorless amine dehydrogenation is reported. These multifunctional catalysts comprise Brønsted basic and Lewis acidic surface sites that stabilize Pd species in 0, 2+, and 4+ oxidation states. Pd speciation and corresponding cataytic performance is a strong function of metal loading. Excellent activity is observed for the oxidative transamination of primary amines and acceptorless dehydrogenation of secondary amines to secondary imines using a low Pd loading (0.5 mol%), without the need for oxidants. N-heterocycles, such as indoline, 1,2,3,4-tetrahydroquinoline, and piperidine, are dehydrogenated to the corresponding aromatics with high yields. The relative yields of secondary imines are proportional to the calculated free energy of reaction, while yields for oxidative amination correlate with the electrophilicity of primary imine intermediates. Reversible amine dehydrogenation and imine hydrogenation determine the relative imine:amine selectivity. Poisoning tests evidence that Pd-LDHs operate heterogeneously, with negligible metal leaching; catalysts can be regenerated by acid dissolution and re-precipitation.</p> </div> <br>

Progress and Perspectives in Passive Direct Methanol Fuel Cells Operating with Concentrated Methanol

2012 ◽  
Vol 7 (3) ◽  
pp. 1-7
Author(s):  
Naveen K. Shrivastavaa ◽  
◽  
Shashikant B. Thombreb ◽  
Kailas L. Wasewar ◽  
◽  
...  
Keyword(s):  
Fuel Cells ◽  
Direct Methanol Fuel Cells ◽  
Direct Methanol ◽  
Methanol Fuel Cells
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