Catalytic studies in electrochemical membrane reactors

Marnellos, George; Stoukides, Michael

doi:10.1016/j.ssi.2004.03.038

Cited by 30 publications

(23 citation statements)

References 39 publications

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“…Combustion of alkanes is relatively slow compared to the combustion of other hydrocarbons [15], for example alkenes, and has been the subject of a large number of studies, which focus mainly on the combustion of methane or propane on noble metal based and metal oxide catalysts in conventional [16][17][18] but also in electrochemical membrane reactors [3,19,20]. Primary C-H bond cleavage is the preferred reaction pathway for alkane combustion [18,21,22] and thus trends in reactivity can be clearly correlated with C-H bond strengths [23].…”

Section: Introductionmentioning

confidence: 99%

In situ electrochemical modification of catalytic activity for propane combustion of Pt/β′′-Al2O3 catalyst-electrodes

Kotsionopoulos

Bebelis

2007

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The effect of electrochemical promotion (EP) of propane combustion was studied over a platinum film catalyst deposited on sodium b¢¢-Al 2 O 3 , a Na + conductor, in the temperature range 320-440°C. It was found that electrochemical pumping of sodium to the platinum surface markedly modifies its catalytic properties. For stoichiometric oxygen to propane ratio the system exhibited electrophobic behavior, i.e., addition of sodium resulted in decrease of the CO 2 production rate. Relative changes in the catalytic rate by up to 60 times larger than the corresponding change in sodium coverage were measured. The observed behavior is explained by taking into account the reaction mechanism and the effect of the electrochemically controlled sodium coverage on the bonding of coadsorbed reactant species.

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Section: Introductionmentioning

confidence: 99%

In situ electrochemical modification of catalytic activity for propane combustion of Pt/β′′-Al2O3 catalyst-electrodes

Kotsionopoulos

Bebelis

2007

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“…Our lack of ability in water splitting [54,55] and battery science [56] measured against requirements of world-scale application are consequences of this fundamental deficit. But also solid-solid interfaces (electrodesolid electrolyte [57][58][59], carbon solid fuel cell [60]) are of low study interest possibly because of the dominating role of slow kinetic processes.…”

Section: The Big Thing First: Energy Integrationmentioning

confidence: 99%

Sustainable Energy Systems: The Strategic Role of Chemical Energy Conversion

Schlögl

2016

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In our globalized economy a multitude of energy systems are in operation. They present quite different structures and targets despite their common goal of supplying the energy needs for all societal activities reflecting the different boundary conditions of respective societies. The common quest for sustainability has given renewable electricity and ''solar fuels'' a high attention. The paper describes some underlying systemic aspects of integrating renewable with fossil energy and makes the point that without chemical energy conversion (CEC) this target will not be possible. A non-exhaustive list of grand challenges in CEC is derived. Some aspects of chemical energy science are discussed.

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“…SEMRs are devices similar to fuel cells and they can exhibit increased yields towards production of useful chemicals or/and electrical energy. In the literature there are various reviews analyzing the application of SEMRs in the promotion of catalytic reactions [23][24][25][26][27][28][29][30][31][32][33]. Fig.…”

Section: Solid Electrolyte Membrane Reactors (Semrs)mentioning

confidence: 99%

“…1, are the electrochemical sensors (case a), when the potential of the cell is affected by the concentration of the compound which is needed to be detected [34], the fuel cells (case c), which can convert the free energy of the reaction directly to electrical energy, bypassing the thermodynamic limitations of the conventional thermal engines [35,36] and the SEMRs (case b), where the target is the electrochemical modification of the catalytic activity towards higher reaction rates [30,31]. Other applications of great importance are solid state batteries [37], oxygen separators [38], hydrogen separators [13], dehumidifiers [13], etc.…”

Section: Solid Electrolyte Membrane Reactors (Semrs)mentioning

confidence: 99%