Volume 92 Issue 14 | p. 34 | Concentrates
Issue Date: April 7, 2014

Water-Splitting Catalyst Likes All pH Values

Cobalt-doped, nitrogen-rich carbon nanotube catalyst drives hydrogen evolution reaction under alkaline, neutral, and acidic conditions
Department: Science & Technology
Keywords: splitting, catalyst, hydrogen, hydrogen evolution, oxygen evolution

The possibility of splitting water to liberate hydrogen, a clean-burning fuel, has spurred an intense search for catalysts to make that process feasible and energy efficient. Most of the promising inexpensive catalysts mediate only half of the chemistry—either the hydrogen evolution reaction (HER) or the oxygen evolution reaction (OER). Coupling those halves in a single water-splitting system has remained challenging, in part because of each half’s pH preference. HER catalysts prefer acidic media, whereas OER . . .

To view the rest of this content, please log in with your ACS ID.

Chemical & Engineering News
ISSN 0009-2347
Copyright © American Chemical Society