| Title | Optimal experimental conditions for hydrogen production using low voltage electrooxidation of organic wastewater feedstock. |
| Publication Type | Journal Article |
| Year of Publication | 2012 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 37 |
| Issue | 18 |
| Pagination | 13304 - 13313 |
| Authors | Cheng, Wei, Nirala Singh, Juan Antonio Macia-Agullo, Galen D. Stucky, Eric W. McFarland, and Jonas. Baltrusaitis |
| Publisher | Elsevier Ltd. |
| ISBN Number | 0360-3199 |
| Keywords | org wastewater feedstock electrooxidn voltage hydrogen prodn condition |
| Abstract | The dependence of electrooxidn. on exptl. conditions of org. mols. was investigated to optimize the prodn. of hydrogen from potential wastewater sources using low voltage sources (∼1 V dc). Electrooxidn. on platinum, gold, and stainless steel anodes with hydrogen prodn. on the cathode was investigated using several different org. reductants, including: methanol, ethanol, glycerol, isopropanol, propanal, glycerol, glucose, sucrose, citric acid, and propionic acid. The electrolyte pH was varied from 2 to 12 in a 1 M Na2SO4 supporting soln. At 1 V, glycerol, citric acid, ethanol and methanol were found to yield the highest currents at low pH values (pH 2 and 7) on platinum electrode, glucose on gold electrode at pH 12 in 1 M Na2SO4 soln. produced the highest total c.d. at 1 V with measured Faradaic efficiency for 1 M glucose of 70%. The hydrogen energy prodn. efficiency was 86%. Practical limitations of glucose oxidn. at optimum exptl. conditions are discussed. [on SciFinder(R)] |