The Afrikaner and South Africa

Bosch, David J.

doi:10.1177/004057368604300206

Cited by 5 publications

(3 citation statements)

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“…It was also found that the propane conversion and the propene selectivity is often inversely related. , Generally, the activity and selectivity of the catalyst depends on its reducibility and basicity . To achieve high activity and selectivity the presence of highly dispersed vanadium is crucial. , It is found that at low loadings vanadium is molecularly dispersed, whereas at higher loadings V 2 O 5 crystallites start to appear. − …”

Section: Introductionmentioning

confidence: 99%

Periodic Density Functional Theory Study of Propane Oxidative Dehydrogenation over V₂O₅(001) Surface

et al. 2006

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The oxidative dehydrogenation (ODH) of propane on single-crystal V(2)O(5)(001) is studied by periodic density functional theory (DFT) calculations. The energetics and pathways for the propane to propene conversion are determined. We show that (i) the C-H bond of propane can be activated by both the terminal and the bridging lattice O atoms on the surface with similar activation energies. At the terminal O site both the radical and the oxo-insertion pathways are likely for the C-H bond activation, while only the oxo-insertion mechanism is feasible at the bridging O site. (ii) Compared to that at the terminal O site, the propene production from the propoxide at the bridging O site is much easier due to the weaker binding of propoxide at the bridging O. It is concluded that single-crystal V(2)O(5)(001) is not a good catalyst due to the terminal O being too active to release propene. It is expected that an efficient catalyst for the ODH reaction has to make a compromise between the ability to activate the C-H bond and the ability to release propene.

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Section: Introductionmentioning

confidence: 99%

Periodic Density Functional Theory Study of Propane Oxidative Dehydrogenation over V₂O₅(001) Surface

et al. 2006

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“…As a new use of ammonia, on-site NO x reduction by ammonia, 1,2 especially on ships and stationary facilities, is increasingly important because the worldwide regulations for NO x emission are becoming severe. 3 The achievement of an on-site system should require a small-scale and efficient ammonia synthesis process that can be conducted at all sites of NO x emission. However, at present, ammonia is synthesized on a large scale by the Haber-Bosch process at high temperature ͑ϳ750 K͒ and high pressure ͑ϳ10 MPa͒, 4 and it is still difficult to synthesize ammonia efficiently on a small scale at lower temperature and pressure.…”

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confidence: 99%

Investigation of Anodic Reaction of Electrolytic Ammonia Synthesis in Molten Salts Under Atmospheric Pressure

Murakami

Nishikiori

Nohira

et al. 2005

J. Electrochem. Soc.

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The kinetics of a novel ammonia synthesis reaction ͑N 3− + 3/2H 2 → NH 3 + 3e − ͒ in molten salts were investigated. To evaluate current efficiencies and ammonia synthesis rates, potentiostatic electrolyses were conducted under various electrolysis conditions in molten LiCl-KCl-CsCl containing 0.5 mol % Li 3 N. The ammonia synthesis rate depended on the hydrogen partial pressure of the feed gas, not on the electrolysis potential. The relationship between ammonia synthesis rate and temperature was described by the Arrhenius equation, and the activation energy of the ammonia synthesis reaction was 69 kJ mol −1 . From the obtained results, the mechanism of the ammonia synthesis reaction was discussed.

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“…According to them it implied political isolation-for-survival (Bosch 1986). In this regard Dubow (1991:11) (Kuyper 1931:35-36;also in Bosch 1986:209-210).…”

Section: [T]he Developing Crisis In Agriculture the Proletarianisatimentioning

confidence: 99%

A Historical-Educational Investigation into the Decision To Remove Religious Education from Public Schools in South Africa

Zyl¹

2014

MJSS

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This article aims at providing an answer to the question whether the government's removal of religious education from the public schools of South Africa can be justified from a historical-educational perspective. In order to answer this question, a historical-educational investigation, based on the historical-educational method, was undertaken concerning relevant information pertaining to three foci: formal South African education during early colonial days, nineteenth century education at the Cape and the philosophy of Christian National Education. The latter is interrogated in terms of its meaning and aims, its support of the religious-political ideas of Abraham Kuyper (1837Kuyper ( -1920 and its ties with the Afrikaner Broederbond ("Afrikaner Brotherhood"). This article concludes that the decision to remove religious education which featured in subjects from public schools was justified.

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The Afrikaner and South Africa

Cited by 5 publications

References 0 publications

Periodic Density Functional Theory Study of Propane Oxidative Dehydrogenation over V₂O₅(001) Surface

Periodic Density Functional Theory Study of Propane Oxidative Dehydrogenation over V₂O₅(001) Surface

Investigation of Anodic Reaction of Electrolytic Ammonia Synthesis in Molten Salts Under Atmospheric Pressure

A Historical-Educational Investigation into the Decision To Remove Religious Education from Public Schools in South Africa

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The Afrikaner and South Africa

Cited by 5 publications

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Periodic Density Functional Theory Study of Propane Oxidative Dehydrogenation over V2O5(001) Surface

Periodic Density Functional Theory Study of Propane Oxidative Dehydrogenation over V2O5(001) Surface

Investigation of Anodic Reaction of Electrolytic Ammonia Synthesis in Molten Salts Under Atmospheric Pressure

A Historical-Educational Investigation into the Decision To Remove Religious Education from Public Schools in South Africa

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Periodic Density Functional Theory Study of Propane Oxidative Dehydrogenation over V₂O₅(001) Surface

Periodic Density Functional Theory Study of Propane Oxidative Dehydrogenation over V₂O₅(001) Surface