Dynamics of production and consumption of methane by active microbiota in Amazonia...
| Full text | |
| Author(s): |
Souza, Felipe de Moura
[1]
;
Paniz, Fernanda Pollo
[1]
;
Pedron, Tatiana
[1]
;
dos Santos, Mauro Coelho
[1]
;
Batista, Bruno Lemos
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Rua Santa Adelia 166, BR-09210170 Santo Andre, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | HELIYON; v. 5, n. 3 MAR 2019. |
| Web of Science Citations: | 1 |
| Abstract | |
Metallic nanoparticles (NPs) have been widely used in different areas of science. Usually, they are immobilized on a low-cost support for catalysis purposes. However, there is a lack of studies for specific methods for analytical quantification since the extraction of these metallic NPs from the matrix is still a challenge. In this work, 15 metallic NPs were synthesized (Pt, Pd, Au, Ag, Rh, Ru, Nb, Mn, Co, Cu, Zr, Sn, Ce, Ni and W) supported on a commercial carbon black (Vulcan XC72). Then, six different methods were employed for sample preparation and further determination by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The results can be divided in three groups concerning the extraction of metallic NPs: the first group could be extracted from the matrix with nitric acid, for the second one it was necessary to employ a digestion at 25 degrees C (room temperature), and finally a third group which was found to be independent of acid and temperature. These findings can contribute to future research in the field of catalysis to improve their characterization regarding the metallic NPs. (AU) | |
| FAPESP's process: | 17/22976-0 - Development of palladium and niobium nanoelectrocatalysts for alkaline direct ethanol fuel cells |
| Grantee: | Felipe de Moura Souza |
| Support type: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 14/05151-0 - Arsenic and rice: monitoring and (bio)remediation studies for food safety |
| Grantee: | Bruno Lemos Batista |
| Support type: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 16/19924-6 - In vitro bioaccessibility assessment and in vivo bioavailability of arsenic ingested through rice commonly consumed by Brazilians |
| Grantee: | Tatiana Pedron |
| Support type: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination |
| Grantee: | Marcos Roberto de Vasconcelos Lanza |
| Support type: | Research Projects - Thematic Grants |
| FAPESP's process: | 16/10060-9 - Multi-user equipment (MUE) approved in Grant FAPESP project 2014/05151-0: inductively coupled plasma mass spectrometer hyphenated to an high performance liquid chromatography (HPLC-ICP-MS) |
| Grantee: | Bruno Lemos Batista |
| Support type: | Multi-user Equipment Program |
| FAPESP's process: | 18/06870-0 - Arsenic and rice: monitoring and (bio)remediation studies for food safety |
| Grantee: | Fernanda Pollo Paniz |
| Support type: | Scholarships in Brazil - Technical Training Program - Technical Training |
| FAPESP's process: | 17/21846-6 - Nanostructures for environmental remediation and power generation from renewable sources |
| Grantee: | Mauro Coelho dos Santos |
| Support type: | Program for Research on Bioenergy (BIOEN) - Regular Program Grants |