✦ LIBER ✦

Reply: Standards of Demonstration for the Heterogeneous Photoreactions of N2 with H2O

✍ Scribed by Prof. Julian A. Davies; Prof. Jimmie G. Edwards

Publisher: John Wiley and Sons
Year: 1993
Tongue: English
Weight: 203 KB
Volume: 32
Category: Article
ISSN: 0044-8249
DOI: 10.1002/anie.199305521

No coin nor oath required. For personal study only.

✦ Synopsis

The synthesis of ammonia from nitrogen and water by irradiation in the presence of certain metal oxide powders as catalysts has been published a number of times since 1977 but was called into question last year by Edwards et al. (Angew. Chem. Int. Ed. Engl. 1992, 31, 480). Criticism of those arguments and the authors' reply should allow our readers to draw their own conclusions. This discussion is welcome in view of the importance of the reaction, whose apparently simple stoichiometry is even open to debate.

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Edwards et al. in their communication in essence convey the impression that the photoreduction of dinitrogen on heterogeneous photocatalysts is thermodynamically close to impossible and that the ammonia yields observed by previous workers''. 31 may have been due to erroneous measurements of backgrou