Synthesis of novel Pd NP-PTH-CNTs hybrid material as catalyst for H2O2 generation

• Published in: Electrochimica acta Vol. 296; pp. 575 - 581
• Main Authors: Reyes-Cruzaley, A.P., Félix-Navarro, R.M., Trujillo-Navarrete, B., Silva-Carrillo, C., Zapata-Fernández, J.R., Romo-Herrera, J.M., Contreras, O.E., Reynoso-Soto, E.A.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 10-02-2019
• Subjects: Amaranth; CNTs; H2O2; ORR; Palladium particles; Photodegradation; PTH; Photodegradation; Amaranth; CNTs; PTH; Palladium particles; H2O2; ORR
• ISSN: 0013-4686; 1873-3859
• DOI: 10.1016/j.electacta.2018.11.023

In this work, we reported a novel green chemistry method for the synthesis of novel Pd NPs-PTH-CNTs hybrid material. Effect of PTH on the size and dispersion degree of Pd NPs was investigated and correlated with composite catalytic activity in the ORR and amaranth electro-photodegradation. The catalytic activity of Pd NPs-PTH-CNTs material is compared with control materials Pd NPs-PTH and Pd NPs-CNTs. PTH incorporation as reducing agent in the deposition of Pd NPs over CNTs promoted the control of particle size and improved their dispersion over the whole CNT surface; also, increase 50% more ORR catalytic activity in the production of H2O2 with the decrease of Pd particle size. This improvement allowed to remove 95% of amaranth with a lower current consumption in the electro-photodegradation. It should be highlighted the green chemistry approach through the synthesis of nanocomposites by eco-friendly methods in one step.
Scheme of hybrid material of carbon nanotubes-polythiophene-palladium particles for oxygen reduction and producing peroxide hydrogen in the photocatalytic degradation of amaranth with low charge consumption. [Display omitted]