Results 61 to 70 of about 33,730 (224)

Effect of ligand methylation on the spin-switching properties of surface-supported spin-crossover molecules [PDF]

, 2019
X-ray absorption spectroscopy investigations of the spin-state switching of spin-crossover (SCO) complexes adsorbed on a highly-oriented pyrolytic graphite (HOPG) surface have shown so far that HOPG is a promising candidate to realize applications such ...
Arruda, Lucas M., Bernien, Matthias, Britton, Andrew J., Engesser, Tobias A., Golias, Evangelos, Kipgen, Lalminthang, Kumberg, Ivar, Naggert, Holger, Nickel, Fabian, Ossinger, Sascha   +9 more
core   +1 more source

Deciphering Intricacies in Directional CO2 Conversion From Electrolysis to CO2 Batteries

Advanced Energy Materials, EarlyView.
This review will delve into the inherent connections and distinctions of CO2‐directed conversion in ECO2RR and CO2 batteries, in terms of product types, catalyst selection, catalytic mechanisms, and electrochemical performances, while proposing a benchmarking framework for the evaluation of CO2 batteries and innovative CO2 battery configurations for ...
Changfan Xu, Huaping Zhao, Lizhuang Chen, Weidong Shi, Guosheng Shao, Yong Lei   +5 more
wiley   +1 more source

Impact of the Anode Serpentine Channel Depth on the Performance of a Methanol Electrolysis Cell

Hydrogen
This work addresses for the first time the effect of anode serpentine channel depth on Methanol Electrolysis Cells (MECs) and Direct Methanol Fuel Cells (DMFCs) for improving performance of both devices. Anode plates with serpentine flow fields of 0.5 mm,
Vladimir L. Meca, Elena Posada, Antonio Villalba-Herreros, Rafael d’Amore-Domenech, Teresa J. Leo, Óscar Santiago   +5 more
doaj   +1 more source

Modeling of the Transport Phenomena in Passive Direct Methanol Fuel Cells Using a Two-Phase Anisotropic Model

Advances in Mechanical Engineering, 2014
The transport phenomena in a passive direct methanol fuel cell (DMFC) were numerically simulated by the proposed two-dimensional two-phase nonisothermal mass transport model.
Zheng Miao, Jin-Liang Xu, Ya-Ling He
doaj   +1 more source

PtCo/rGO nano-anode catalyst: enhanced power density with reduced methanol crossover in direct methanol fuel cell

Materials for Renewable and Sustainable Energy, 2018
The higher methanol utilization efficiency in direct methanol fuel cell (DMFC) is one of the key factors that determine the performance of DMFC. Herein, we have synthesized bimetallic PtCo nano-particles (with optimized Pt:Co ratio) decorated reduced ...
Richa Baronia, Jyoti Goel, Jyoti Kaswan, Ajay Shukla, Sunil K. Singhal, Surinder P. Singh   +5 more
doaj   +1 more source

Nanocomposite Nafion-Silica membranes for direct methanol fuel cells [PDF]

, 2005
Commercially available proton exchange membranes such as Nafion do not meet the requirements for high power density direct methanol fuel cells, partly due to their high methanol permeability.
Dicks, A. L., Diniz da Costa, J. C., Duke, M. C., Ladewig, B. P., Lu, G., Martin, D. J., Rodriguez, J. I. C.   +6 more
core  

Determination of stability constants using genetic algorithms [PDF]

, 1995
A genetic algorithm (GA)-simplex hybrid approach has been developed for the determination of stability constants using calorimetric and polarographic data obtained from literature sources.
Bos, M., Diamond, Dermot, Hartnett, Margaret K., Linden, W.E. van der   +3 more
core   +3 more sources

Water management in direct methanol fuel cells [PDF]

, 2008
Direct methanol fuel cell (DMFC) are a promising power source for micro and portable applications due to their high energy density and inherent simplicity of operation with methanol as the liquid fuel.
Oliveira, V. B., Pinto, A. M. F. R., Rangel, C. M.   +2 more
core  

A Nafion-Ceria Composite Membrane Electrolyte for Reduced Methanol Crossover in Direct Methanol Fuel Cells

Energies, 2017
An alternative Nafion composite membrane was prepared by incorporating various loadings of CeO2 nanoparticles into the Nafion matrix and evaluated its potential application in direct methanol fuel cells (DMFCs).
Parthiban Velayutham, Akhila K. Sahu, Sridhar Parthasarathy   +2 more
doaj   +1 more source

Time-dependent universal conductance fluctuations in mesoscopic Au wires: implications

, 2007
In cold, mesoscopic conductors, two-level fluctuators lead to time-dependent universal conductance fluctuations (TDUCF) manifested as $1/f$ noise. In Au nanowires, we measure the magnetic field dependence of TDUCF, weak localization (WL), and magnetic ...
A. Trionfi, C. W. J. Beenakker, D. Natelson, S. Feng, S. Lee   +4 more
core   +1 more source