Details

Autor(en) / Beteiligte

• Siahrostami, Samira
• Li, Guo-Ling
• Viswanathan, Venkatasubramanian
• Nørskov, Jens K

Titel

One- or Two-Electron Water Oxidation, Hydroxyl Radical, or H2O2 Evolution

Ist Teil von

• The journal of physical chemistry letters, 2017-03, Vol.8 (6), p.1157-1160

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2017

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Electrochemical or photoelectrochemcial oxidation of water to form hydrogen peroxide (H2O2) or hydroxyl radicals (•OH) offers a very attractive route to water disinfection, and the first process could be the basis for a clean way to produce hydrogen peroxide. A major obstacle in the development of effective catalysts for these reactions is that the electrocatalyst must suppress the thermodynamically favored four-electron pathway leading to O2 evolution. We develop a thermochemical picture of the catalyst properties that determine selectivity toward the one, two, and four electron processes leading to •OH, H2O2, and O2.