Inhibition by hydrogen of the heterogeneous decomposition of ammonia on platinum

Tsai, W.; Vajo, John J.; Weinberg, W. H.

doi:10.1021/j100269a009

Cited by 47 publications

(21 citation statements)

References 10 publications

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“…The negative orders observed for hydrogen for both catalysts can be explained, considering that chemisorbed hydrogen blocks surface sites that are necessary for ammonia decomposition, or reacts chemically and hydrogenates NH x intermediates generated during the ammonia decomposition. 58 As shown in Table 4, potassium promotion results in a decrease of both the reaction order on NH 3 (from 0.8 to 0.5) and the negative reaction order on H 2 (from −1.9 to −1.2), highlighting the positive electronic promotion of the alkali metal.…”

Section: Kinetic Analysismentioning

confidence: 92%

High pressure ammonia decomposition on Ru–K/CaO catalysts

Sayas

Morlanés

Katikaneni

et al. 2020

Catal. Sci. Technol.

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Section: Kinetic Analysismentioning

confidence: 92%

High pressure ammonia decomposition on Ru–K/CaO catalysts

Sayas

Morlanés

Katikaneni

et al. 2020

Catal. Sci. Technol.

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“…The decreased NH3 decomposition efficiency was due mainly to the reduced residence time (or contact time [31]) between gas and catalyst surface. Additionally, the NH3 decomposition process is limited by the rate of NH3 adsorption onto the catalyst active site; this is followed by N-H bond cleavage, N recombination, and desorption of dinitrogen [4], [32] at temperatures below 377°C (650K) [33]. Nitrogen desorption is considered as the rate-limiting step of NH3 decomposition [34].…”

Section: Nh3 Decomposition and Exhaust Energy Recovery Studiesmentioning

confidence: 99%

Exhaust energy recovery via catalytic ammonia decomposition to hydrogen for low carbon clean vehicles

Sittichompoo

Nozari

Herreros

et al. 2021

Fuel

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“…Metals that have been studied for this reaction include Co, Cu, Fe, Ir, Ni, Pd, Pt, Re, Rh, Ru, and W (Rostrup-Nielson, 1973;Taylor et al, 1974;Klimisch and Taylor, 1975;Friedlander et al, 1977a,b;Gates et al, 1979;Ertl and Huber, 1980;McCabe, 1980;Tsai et al, 1985). Metals with a moderate heat of formation, such as Ru, Co, lr, and Ni are superior (Gates et al, 1979).…”

Section: Cu9s5 Cu9s5mentioning

confidence: 99%

“…The method of preparation and combinations of metals have an important influence on catalytic activity (Taylor et al, 1974;Klimisch and Taylor, 1975;Friedlander et al, 1977a,b (Tsai et al, 1985). Krishnan et al (1988) examined the effect of H2S and steam on various supported nickel, Ni/Ir, and Ni/Mn catalysts supported on alumina or MgAI204.…”

Section: Cu9s5 Cu9s5mentioning

confidence: 99%

Development of ceramic membrane reactors for high temperature gas cleanup. Final report

Roberts¹,

Abraham²,

Blum³

et al. 1993

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This repcmwas preperedas an accountof worksponsoredby an agencyof the UnitedStates GovmunenLNeitherthe UnitedStatesGovernment nor any agency thereof, nor any of their employees, makesanywm'r_ty, expressorimplied, or assumesanylegalliabilityorresponsibility forthe amn'acy,completeness, or usefulnessof any infommfon,apparatus, product, orprocess disclosed,or _xesents thatitsusewouldnotinfringeprivately ownedrights. Referenceherein anySlY'if'to commercial product, process, or serviceby Irade name,Irademark, manufacturer, or otherwi_,doesnot necess_y constitute orimplyits endorsement, recommendation, or favoring by theUnitedStatesGovernment or anyagencythereofThe views andopinionsof authorsexpressedhereindo not necessarilystateorreflectthoseof the UnitedStatesGov_ or any agencythereof.

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Inhibition by hydrogen of the heterogeneous decomposition of ammonia on platinum

Cited by 47 publications

References 10 publications

High pressure ammonia decomposition on Ru–K/CaO catalysts

High pressure ammonia decomposition on Ru–K/CaO catalysts

Exhaust energy recovery via catalytic ammonia decomposition to hydrogen for low carbon clean vehicles

Development of ceramic membrane reactors for high temperature gas cleanup. Final report

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