Selective Oxidation of PEMFC Catalyst Supports: Overcoming the Trade-Off between Kinetics and Mass Transport Limitations

2021 ◽  
Vol MA2021-02 (39) ◽  
pp. 1184-1184
Author(s):  
Timon Lazaridis ◽  
Hubert A. Gasteiger
Keyword(s):  
Mass Transport ◽  
Selective Oxidation ◽  
Catalyst Supports ◽  
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scholarly journals The trade-off between membrane permselectivity and conductivity: A percolation simulation of mass transport

2020 ◽  
Vol 597 ◽  
pp. 117751
Author(s):  
Bopeng Zhang ◽  
Haiping Gao ◽  
Chengchao Xiao ◽  
Xin Tong ◽  
Yongsheng Chen
Keyword(s):  
Mass Transport ◽  
Trade Off

scholarly journals Rich H2 catalytic oxidation as a novel methodology for the evaluation of mass transport properties of 3D printed catalyst supports

2021 ◽  
Author(s):  
Federico Sascha Franchi ◽  
Matteo Ambrosetti ◽  
Riccardo Balzarotti ◽  
Mauro Bracconi ◽  
Gianpiero Groppi ◽  
...  
Keyword(s):  
Mass Transport ◽  
Transport Properties ◽  
Catalytic Oxidation ◽  
Catalyst Supports ◽  
3D Printed

scholarly journals Cation-exchanged zeolites for the selective oxidation of methane to methanol

2018 ◽  
Vol 8 (1) ◽  
pp. 114-123 ◽  
Author(s):  
Ambarish R. Kulkarni ◽  
Zhi-Jian Zhao ◽  
Samira Siahrostami ◽  
Jens K. Nørskov ◽  
Felix Studt
Keyword(s):  
Transition Metal ◽  
Selective Oxidation ◽  
Metal Cation ◽  
Active Site ◽  
Methane Activation ◽  
Transition Metal Cation ◽  
Trade Off ◽  
Oxidation Of Methane ◽  
Active Site Motif

Development of an ideal methane activation catalyst presents a trade-off between stability and reactivity of the active site that can be achieved by tuning the transition metal cation, active site motif and the zeolite topology.

scholarly journals Periodic open cellular structures (POCS) as enhanced catalyst supports: Optimization of the coating procedure and analysis of mass transport

2021 ◽  
Vol 283 ◽  
pp. 119651
Author(s):  
Riccardo Balzarotti ◽  
Matteo Ambrosetti ◽  
Mauro Arnesano ◽  
Alfredo Anglani ◽  
Gianpiero Groppi ◽  
...  
Keyword(s):  
Mass Transport ◽  
Cellular Structures ◽  
Catalyst Supports ◽  
Coating Procedure

Models of Thermodynamic Properties of Prominences

1979 ◽  
Vol 44 ◽  
pp. 349-355
Author(s):  
R.W. Milkey
Keyword(s):  
Thermodynamic Properties ◽  
Mass Transport ◽  
Emission Spectrum ◽  
Thermodynamic Parameters ◽  
Working Group ◽  
Physical Processes ◽  
Theoretical Concepts ◽  
Group 3 ◽  
Observational Techniques

The focus of discussion in Working Group 3 was on the Thermodynamic Properties as determined spectroscopically, including the observational techniques and the theoretical modeling of physical processes responsible for the emission spectrum. Recent advances in observational techniques and theoretical concepts make this discussion particularly timely. It is wise to remember that the determination of thermodynamic parameters is not an end in itself and that these are interesting chiefly for what they can tell us about the energetics and mass transport in prominences.

Selective oxidation of aniline into azoxybenzene catalyzed by Nb-peroxo@iron oxides at room temperature

2020 ◽  
Vol 44 (21) ◽  
pp. 8710-8717
Author(s):  
André L. D. Lima ◽  
Humberto V. Fajardo ◽  
André E. Nogueira ◽  
Márcio C. Pereira ◽  
Luiz C. A. Oliveira ◽  
...  
Keyword(s):  
Iron Oxides ◽  
Selective Oxidation ◽  
Room Temperature ◽  
High Selectivity

Nb-peroxo@iron oxides show high selectivity and activity in aniline conversion to azoxybenzene.

A Flow-Preserving Algorithm for the Time-Cost Trade-Off Problem

1982 ◽  
Vol 14 (2) ◽  
pp. 109-113 ◽  
Author(s):  
Suleyman Tufekci
Keyword(s):  
Time Cost ◽  
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Dual Goals for Speed and Accuracy on the Same Performance Task

2012 ◽  
Vol 11 (3) ◽  
pp. 118-126 ◽  
Author(s):  
Olive Emil Wetter ◽  
Jürgen Wegge ◽  
Klaus Jonas ◽  
Klaus-Helmut Schmidt
Keyword(s):  
Memory Scanning ◽  
Performance Task ◽  
Performance Tasks ◽  
Trade Off ◽  
Test Experiment ◽  
Trade Offs ◽  
New Finding ◽  
Sternberg Paradigm ◽  
Speed Accuracy ◽  
Speed And Accuracy

In most work contexts, several performance goals coexist, and conflicts between them and trade-offs can occur. Our paper is the first to contrast a dual goal for speed and accuracy with a single goal for speed on the same task. The Sternberg paradigm (Experiment 1, n = 57) and the d2 test (Experiment 2, n = 19) were used as performance tasks. Speed measures and errors revealed in both experiments that dual as well as single goals increase performance by enhancing memory scanning. However, the single speed goal triggered a speed-accuracy trade-off, favoring speed over accuracy, whereas this was not the case with the dual goal. In difficult trials, dual goals slowed down scanning processes again so that errors could be prevented. This new finding is particularly relevant for security domains, where both aspects have to be managed simultaneously.

Decision-making studies: I. The trade-off of variables in decision making.

1960 ◽  
Author(s):  
J. R. Hayes ◽  
Elizabeth C. Smith
Keyword(s):  
Decision Making ◽  
Trade Off
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