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A simple preparation of stable, nonreactive surfaces for gas kinetic studies of reactions of hydrogen atoms
Author(s) -
Sepehrad Abolghassem,
Marshall Roger M.,
Purnell Howard
Publication year - 1979
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550110406
Subject(s) - chemistry , hydrogen , aqueous solution , quartz , kinetic energy , analytical chemistry (journal) , inorganic chemistry , organic chemistry , composite material , materials science , physics , quantum mechanics
A quartz surface has been prepared for which γ, the mean collisional efficiency for removal of hydrogen atoms, is given by\documentclass{article}\pagestyle{empty}\begin{document}$$ 10^4 \gamma = 0.78 \pm 0.30 $$\end{document}over the temperature range from 315 to 818 K. The preparation “cleans” the surface by contact with 10 M aqueous NaOH for ˜ 15 hr and then deactivates it by contact with 10 M aqueous HNO 3 for ˜15 hr. The surface is stable and long‐lived even after prolonged contact with air. Preliminary results show that a similar result can be obtained using Pyrex glass surfaces.