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Volumn 5, Issue 6, 2015, Pages 3514-3527

Agglomerative sintering of an atomically dispersed ir1/zeolite y catalyst: Compelling evidence against ostwald ripening but for bimolecular and autocatalytic agglomeration catalyst sintering steps

Author keywords

agglomeration; catalyst; cluster; kinetics; mononuclear; nanoparticle; Ostwald ripening; sintering

Indexed keywords

AGGLOMERATION; CATALYST SUPPORTS; CATALYSTS; CHEMICAL REACTIONS; CYCLOHEXANE; DISPERSIONS; ENZYME KINETICS; ETHYLENE; EXTENDED X RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY; HIGH RESOLUTION TRANSMISSION ELECTRON MICROSCOPY; NANOPARTICLES; OSTWALD RIPENING; SCANNING ELECTRON MICROSCOPY; TRANSMISSION ELECTRON MICROSCOPY; X RAY ABSORPTION; ZEOLITES;

EID: 84930619658     PISSN: None     EISSN: 21555435     Source Type: Journal    
DOI: 10.1021/acscatal.5b00321     Document Type: Article
Times cited : (70)

References (95)
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    • To drive home the significance of knowing the starting point here, if it was "A", then the 2 steps and associated correct words and descriptors that should have been used to fit the data would have been bimolecular nucleation,(50b) A + A → 2B, and autocatalytic growth, A + B → 2B. Moreover, we know from experience that the associated diameter vs time equation for these two steps is very similar to eq 1 so that the fit to the observed diameter vs time data would be indistinguishable from that observed for the B + B → 2B, B + C → 1.5 C diameter equation. We have discussed previously the enormous significance to understanding chemistry and chemical mechanisms of using the proper balanced equations that not only define the rate constants, but also define the proper words and concepts to be used when talking about the underlying chemistry and associated mechanism.(50b, 50c)
    • To drive home the significance of knowing the starting point here, if it was "A", then the 2 steps and associated correct words and descriptors that should have been used to fit the data would have been bimolecular nucleation,(50b) A + A → 2B, and autocatalytic growth, A + B → 2B. Moreover, we know from experience that the associated diameter vs time equation for these two steps is very similar to eq 1 so that the fit to the observed diameter vs time data would be indistinguishable from that observed for the B + B → 2B, B + C → 1.5 C diameter equation. We have discussed previously the enormous significance to understanding chemistry and chemical mechanisms of using the proper balanced equations that not only define the rate constants, but also define the proper words and concepts to be used when talking about the underlying chemistry and associated mechanism.(50b, 50c)
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    • We use the term "pseudo-elementary" as first defined by Noyes in his studies of complex, many-step oscillating reactions, that is, where one can use a reaction that is a sum of more than one elementary reaction, plus faster reactions, the sum of which is by definition a pseudo-elementary reaction that can be used in a kinetically useful way.
    • We use the term "pseudo-elementary" as first defined by Noyes in his studies of complex, many-step oscillating reactions, that is, where one can use a reaction that is a sum of more than one elementary reaction, plus faster reactions, the sum of which is by definition a pseudo-elementary reaction that can be used in a kinetically useful way.
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    • See also our prior uses of the pseudo-elementary reaction concept in the formation and agglomeration of nanoparticles.(32, 33, 48, 49)
    • See also our prior uses of the pseudo-elementary reaction concept in the formation and agglomeration of nanoparticles.(32, 33, 48, 49)
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.