| Full text | |
| Author(s): |
Antoniassi, Rodolfo M.
;
Quiroz, Jhon
;
Barbosa, Eduardo C. M.
;
Parreira, Luanna S.
;
Isidoro, Roberta A.
;
Spinace, Estevam, V
;
Silva, Julio C. M.
;
Camargo, Pedro H. C.
Total Authors: 8
|
| Document type: | Journal article |
| Source: | CHEMCATCHEM; v. 13, n. 8, p. 9-pg., 2021-02-18. |
| Abstract | |
Designing efficient anode CO-tolerant electrocatalysts is critical in low-temperature fuel cell catalysts fueled either by H-2/CO or alcohol. We demonstrate that the incorporation of TiO2 nanocubes (TiO2NCs) on Carbon Vulcan supports, followed by the synthesis of Pt NPs at their surface (Pt/TiO2NCs-C material), led to improvements in performance towards the electrooxidation of carbon monoxide, ethanol, methanol, ethylene glycol, and glycerol in acidic media relative to the commercial Pt/C and Pt/TiO2-C counterparts employing commercial TiO2. The nanocubes enabled changes in the electronic properties of Pt NPs while contributing to the bifunctional mechanism as compared to Pt/C and Pt/TiO2-C with commercial TiO2. Fuel cell experiments fed with H-2/CO steam showed that Pt/TiO2NCs-C employing nanocubes was resistant to CO-poisoning, yielding superior performance in operational conditions. The results reported herein have important implications for developing electrocatalysts with superior performances in PEMFCs. (AU) | |
| FAPESP's process: | 15/26308-7 - Optimization of the physicochemical properties of nano -structured materials for applications in molecular recognition, catalysis and energy conversion/storage |
| Grantee: | Roberto Manuel Torresi |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 15/11452-5 - Hybrid materials composed of oxides and metallic nanoparticles for catalytic and photocatalytic applications |
| Grantee: | Eduardo César Melo Barbosa |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 14/09087-4 - Studies on the use of bioethanol in proton exchange membrane and solid oxide fuel cells |
| Grantee: | Marcelo Linardi |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 17/11937-4 - A sustainable path to methane conversion by advanced electrochemical technologies |
| Grantee: | Fabio Coral Fonseca |
| Support Opportunities: | Research Grants - Applied Research Centers Program |
| FAPESP's process: | 16/00819-8 - Controlled Synthesis of Nanomaterials based on Pd and Pt: Electrocatalytic Activity and Stability |
| Grantee: | Luanna Silveira Parreira |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 16/17866-9 - Tailoring the catalytic properties of plasmonic Nanorattles towards the photochemical activation of oxygen under mild conditions |
| Grantee: | Jhon Jhon Quiroz Torres |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 17/15469-5 - Preparation of nanocatalysts with controlled morphology for applications in hydrogen purification and oxidation of contaminated hydrogen for electric energy generation |
| Grantee: | Rodolfo Molina Antoniassi |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |