Details

Autor(en) / Beteiligte

• Yang, Sungeun
• Verdaguer-Casadevall, Arnau
• Arnarson, Logi
• Silvioli, Luca
• Čolić, Viktor
• Frydendal, Rasmus
• Rossmeisl, Jan
• Chorkendorff, Ib
• Stephens, Ifan E. L

Titel

Toward the Decentralized Electrochemical Production of H2O2: A Focus on the Catalysis

Ist Teil von

• ACS catalysis, 2018-05, Vol.8 (5), p.4064-4081

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• H2O2 is a valuable, environmentally friendly oxidizing agent with a wide range of uses from the provision of clean water to the synthesis of valuable chemicals. The on-site electrolytic production of H2O2 would bring the chemical to applications beyond its present reach. The successful commercialization of electrochemical H2O2 production requires cathode catalysts with high activity, selectivity, and stability. In this Perspective, we highlight our current understanding of the factors that control the cathode performance. We review the influence of catalyst material, electrolyte, and the structure of the interface at the mesoscopic scale. We provide original theoretical data on the role of the geometry of the active site and its influence on activity and selectivity. We have also conducted a series of original experiments on (i) the effect of pH on H2O2 production on glassy carbon, pure metals, and metal–mercury alloys, and (ii) the influence of cell geometry and mass transport in liquid half-cells in comparison to membrane electrode assemblies.