Detalhes bibliográficos
| Resumo: | This study describes the development of an ethylene glycol (EG) biofuel cell that combines the organic catalyst 4-amino-TEMPO (TEMPO-NH2) and the enzyme oxalate oxidase (OxOx) in solution for complete EG oxidation. Cyclic voltammetric curves recorded in the presence of EG showed that the hybrid TEMPO-NH2/OxOx catalyst provided 1.2 higher current density than the TEMPO-NH2 catalyst. Chronoamperometric assays after successive EG injections and long-term electrolysis at a fixed potential of 0.75 V (vs Ag/AgCl) showed that the hybrid TEMPO-NH2/OxOx catalyst in the presence of EG promoted 14 % and 58 % increase in the current obtained with the TEMPO-NH2 catalyst, respectively. High-performance liquid chromatography (HPLC) results confirmed that TEMPO-NH2 and OxOx respectively acted on EG oxidation and C−C bond cleavage, leading to complete EG oxidation, harvesting all 10 of the EG electrons and high catalytic activity. |
|---|
| Autores principais: | Antonio, Jesimiel Glaycon R. |
|---|
| Outros Autores: | Franco, Jefferson Honorio; Almeida, Paula Zaghetto de; Lourdes, Maria de; Polizeli, T. M.; Minteer, Shelley D.; Andrade, Adalgisa R. de |
|---|
| Assunto: | Enzymatic biofuel cell Ethylene glycol Hybrid biofuel cell Oxalate oxidase TEMPO-NH2 |
|---|
| Ano: | 2023 |
|---|
| País: | Brasil |
|---|
| Tipo de documento: | artigo |
|---|
| Tipo de acesso: | acesso aberto |
|---|
| Instituição associada: | IBICT |
|---|
| Idioma: | inglês |
|---|
| Origem: | Oasisbr |
|---|