@Article{OishiCoutBoteFerr:2021:SiDeOp,
               author = "Oishi, Silvia Sizuka and Couto, Andrea Boldarini and Botelho, 
                         Edson Cocchieri and Ferreira, Neiden{\^e}i Gomes",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Universidade Estadual 
                         Paulista (UNESP)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Silver deposition optimization process on ultrananocrystalline 
                         diamond applied to nitrate reduction",
              journal = "Environmental Technology",
                 year = "2021",
               volume = "42",
               number = "4",
                pages = "640--647",
             keywords = "Reticulated vitreous carbon, boron-doped ultrananocrystalline 
                         diamond, silver, electrodeposition, nitrate.",
             abstract = "Nitrate is a serious contaminant of ground and surface water, 
                         which cause high concern in the field of health and environmental 
                         protection. In this work, a ternary composite of 
                         silver/boron-doped ultrananocrystalline diamond/reticulated 
                         vitreous carbon (Ag/B-UNCD/RVC) was prepared and its 
                         electrocatalytic activity for nitrate reduction was examined. 
                         B-UNCD films were grown by hot filament chemical vapour deposition 
                         technique on RVC after a substrate seeding process improvement 
                         using 4 nm diamond powder. Compared to conventional 0.25 µm 
                         diamond seeding, this new procedure allowed uniform RVC coverage 
                         avoiding its etching process during diamond growth, in addition to 
                         obtaining more reproductive electrodes. In order to improve the 
                         catalytic effect of B-UNCD/RVC electrodes for nitrate reduction, 
                         silver deposition was performed on B-UNCD surface after oxidation 
                         for 10, 20 and 30 min in 0.5 mol L-1 H2SO4 solution using a 
                         potential of 2 V vs. Ag/AgCl. The most oxidized diamond film (30 
                         min of oxidation) presented the highest silver deposit and 
                         particle adhesion. Thus the electrochemical response to nitrate of 
                         B-UNCD/RVC oxidized for 30 min was compared to that of RVC and 
                         B-UNCD/RVC electrodes showing the important Ag influence in the 
                         catalytic process.",
                  doi = "10.1080/09593330.2019.1641558",
                  url = "http://dx.doi.org/10.1080/09593330.2019.1641558",
                 issn = "0959-3330",
                label = "lattes: 0972408606986946 1 OishiCoutBoteFerr:2019:SiDeOp",
             language = "en",
           targetfile = "oishi_silver.pdf",
        urlaccessdate = "27 abr. 2024"
}