A novel and effective strategy for electro-oxidation of ethanol to acetaldehyde

• Published in: Catalysis communications Vol. 86; pp. 119 - 123
• Main Authors: Zhang, Yongbo, Han, Zhen, Dong, Bing, Yu, Youyi, Kong, Aiguo, Shan, Yongkui
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05.11.2016
• Subjects: Acetaldehyde; Electro-oxidation; Ionic liquid; Peroxydisulfate; Platinum; TiNxO2 − x; Peroxydisulfate; Platinum; TiNxO2−x; Electro-oxidation; Ionic liquid; Acetaldehyde
• ISSN: 1566-7367; 1873-3905
• DOI: 10.1016/j.catcom.2016.08.021

For taking full advantages of electrochemical synthesis and high selectivity of peroxydisulfate for oxidation of alcohol to aldehyde, the electrocatalyst Ti-TiNxO2−x-Pt and electrolysis-separation device were constructed. The synergetic effect between the Ti-TiNxO2−x-Pt with the suitable catalytic performance for electro-oxidation of HSO4− to peroxydisulfate and the electrolysis-separation device with the rapid separation of the acetaldehyde from the reaction system dramatically enhances the catalytic performance of Ti-TiNxO2−x-Pt for the indirect electro-oxidation of ethanol to acetaldehyde. The current efficiency for generation of acetaldehyde reaches 88.9%, higher than those reported in the literature. This method also possesses easy operation, high stability and recycling functionality. [Display omitted] •A novel indirectly electrocatalytic system based on ionic liquid [EA][HSO4]•High current efficiency for the oxidation of ethanol to acetaldehyde (88.9%)•Ti-TiNxO2−x-Pt as efficient low-Pt electrocatalyst•Enhancing the yield of acetaldehyde by a special electrolysis-separation device