Premium
The Chemisorptive Properties of Nickel Borides
Author(s) -
Chen YinZu,
Wu JongShiun
Publication year - 1990
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199000067
Subject(s) - nickel , chemistry , dissociation (chemistry) , desorption , hydrogen , adsorption , cobalt , metallurgy , inorganic chemistry , materials science , organic chemistry
The chemisorptive properties of the nickel borides have been studied with temperature programmed desorption of H 2 and CO. The TPD chromatograms of H 2 show two major peaks at 150°C and 300°C for the P‐1 and P‐2W nickel borides and a major peak at 150°C for the DBNi and CrP‐1 nickel borides. Not all hydrogen molecules are dissociatively adsorbed on surface nickel, some hydrogens diffuse and are absorbed into the matrix of the nickel borides. Except the Cr‐promoted P‐1(P‐2W), the nickel borides do not exhibit the obvious chemisorptive capacity for CO. The Cr‐promoted nickel borides, on the other hand, not only have the obvious uptake capacity for CO but also have the good activity for CO dissociation.