that pdf file which Rhodium digged up so fast, it has something to remind however:
""Aside from theoretical considerations, the results of this study serve to em-
phasize the importance of accuracy and precision in catalytic hydrogenation ex-
periments, and indeed, add impetus to the statement of Homer Adkins (3):
“It may not be amiss, however, to suggest that the author of a paper upon
catalytic hydrogenation should state exactly how he prepared his catalyst ; how
much of it and the hydrogen acceptor be used; a t what pressure of hydrogen, at
what temperature, and for how long the reaction was carried out; and how much
of each product was actually isolated in a pure state.” ""
The last link from roger is a 20 years younger one, and there are many recent studies written on this same subject, see the Catalysts Degussa site,
http://www.sivento.de/catalysts/
or the Johnson Matthey Catalysts website, or mine around at Espaceweb. LT/