APLICAÇÃO DA ESPECTROELETROQUÍMICA NO...
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APLICAÇÃO DA ESPECTROELETROQUÍMICA NO DESENVOLVIMENTO DE NANODEPÓSITOS DE COBRE NA PRESENÇA DE QUITOSANA F.V.C. Kock 1 , L.A. Colnago 2 ,QVWLWXWR GH 4XtPLFD GH 6mR &DUORV ,46&863$YHQLGD 7UDEDOKDGRU 6mR&DUOHQVH 6mR &DUORV63 .RFNﾀDYLR#JPDLOFRP (PEUDSD ,QVWUXPHQWDomR 5XD ;9 GH 1RYHPEUR 6mR &DUORV63 OXL]FROQDJR#HPEUDSDEU Resumo 2V REMHWLYRV GHVWD SHVTXLVD FRQVLVWHP QR PRQLWRUDPHQWR in situ GH UHDo}HV HOHWURTXtPLFDV DFRSODGDV DR HVSHFWU{PHWUR GH UHVVRQkQFLD PDJQpWLFD QXFOHDU QR GRPtQLR GR WHPSR 501'7 H QD DYDOLDomR GD SUHVHQoD GR ELRSROtPHUR TXLWRVDQD QD FLQpWLFD H QD PRUIRORJLD GRV HOHWURGHSyVLWRV GH FREUH 1HVWH VHQWLGR IRL HPSUHJDGD XPD FpOXOD HVSHFWURHOHWURTXtPLFD FRPSRVWD SRU WUrV HOHWURGRV VHQGR R HOHWURGR GH WUDEDOKR H R FRQWUD HOHWURGR FRQVWLWXtGRV GH SODWLQD H R HOHWURGR GH UHIHUrQFLD GH $J$J&O (VWD FpOXOD IRL SRVLFLRQDGD QR FHQWUR GD ERELQD GH UDGLRIUHTXrQFLD GR DSDUHOKR GH 501 GH PRGR TXH D HOHWURGHSRVLomR GR PHWDO SXGHVVH VHU DFRPSDQKDGD in situ SRU LQWHUPpGLR GD YDULDomR QR WHPSR GH UHOD[DomR WUDQVYHUVDO 7 7RGDV DV DQiOLVHV HVSHFWURHOHWURTXtPLFDV IRUDP UHDOL]DGDV HPSUHJDQGR DV VHTXrQFLDV GH SXOVRV &DUU3XUFHOO0HLERRP*LOO &30* $ YDULDomR QRV YDORUHV GH 7 FDXVDGD SHOD UHDomR HOHWURTXtPLFD LQWHUIDFHDGD FRP D 501'7 GHPRQVWURX TXH D TXDQWLGDGH GH tRQV F~SULFRV FRQVXPLGRV DSyV PLQXWRV GH UHDomR IRL GH QD DXVrQFLD GR ELRSROtPHUR H HP WRUQR GH HP VXD SUHVHQoD 8PD SRVVtYHO H[SOLFDomR SDUD HVWH UHVXOWDGR p TXH D WD[D GH GHSRVLomR GR PHWDO p OLPLWDGD SRU WUDQVSRUWH GH PDVVD SRLV D VROXomR FRP TXLWRVDQD p PDLV YLVFRVD $V LPDJHQV REWLGDV SRU PLFURVFRSLD HOHWU{QLFD GH YDUUHGXUD 0(9 PRVWUDUDP TXH D GHSRVLomR QD SUHVHQoD GH TXLWRVDQD RFRUULGD GHQWUR GR FDPSR PDJQpWLFR GH 7 RULJLQD GHSyVLWRV GH PHQRUHV GLPHQV}HV H PHOKRU RULHQWDGRV VREUH D VXSHUItFLH GR HOHWURGR Palavras-chave (VSHFWURHOHWURTXtPLFD QDQRGHSyVLWRV ELRSROtPHURV APPLICATION OF SPECTROELECTROCHEMISTRY IN THE DEVELOPMENT OF COPPER NANODE- POSITS IN THE PRESENCE OF CHITOSAN Abstract: 7KH DLPV RI WKLV UHVHDUFK FRQVLVWV LQ WKH in situ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in situ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ｿHOG 7 RULJLQDWHV VPDOOHU GHSRVLWV RULHQWHG RQ WKH HOHFWURGH VXUIDFH Keywords: 6SHFWURHOHFWURFKHPLVWU\ QDQRGHSRVLWV ELRSRO\PHUV 1. Introdução 2 GHVHQYROYLPHQWR GH SHVTXLVDV QD iUHD HVSHFWURHOHWURTXtPLFD SRVVLELOLWD DOLDU DV YDQWDJHQV GDV DQiOLVHV HOHWURTXtPLFDV H HVSHFWURVFySLFDV HP XP ~QLFR H[SHULPHQWR .$,0 HW DO (VWH DFRSODPHQWR SRVVLELOLWD HVWXGRV VREUH RV PHFDQLVPRV GH UHDo}HV H D LGHQWLｿFDomR GH HVSpFLHV JHUDGDV in situ DR ORQJR SRU H[HPSOR GH XPD GHJUDGDomR HOHWURTXtPLFD 181(6 HW DO 2 DFRSODPHQWR GD UHVVRQkQFLD PDJQpWLFD QXFOHDU 501 FRP D HOHWURTXtPLFD in situ 501(4 WHYH LQLFLR HP SRU LQWHUPpGLR GD SXEOLFDomR UHDOL]DGD SRU 5LFKDUGV H (YDQV 5,&+$5'6 HW DO . &RQWXGR VRPHQWH HP IRL SXEOLFDGR R SULPHLUR WUDEDOKR HQYROYHQGR R DFRSODPHQWR GD HOHWURTXtPLFD FRP D 501 QR GRPtQLR GR WHPSR 501'7 1HVWD SHVTXLVD UHDOL]DGD SRU %DUERVD et al XPD FpOXOD HVSHFWURHOHWUR- TXtPLFD IRL GHVHQYROYLGD SDUD R PRQLWRUDPHQWR GD FRQFHQWUDomR GH tRQV F~SULFRV DWUDYpV GD YDULDomR QR WHPSR GH UHOD[DomR WUDQVYHUVDO 7 GXUDQWH XPD HOHWURGHSRVLomR QD SUHVHQoD GR DJHQWH FRPSOH[DQWH VRUELWRO (P siagro-2014.indb 375 16/12/14 18:30
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Transcript of APLICAÇÃO DA ESPECTROELETROQUÍMICA NO...
APLICAÇÃO DA ESPECTROELETROQUÍMICA NO DESENVOLVIMENTO DE NANODEPÓSITOS DE COBRE NA PRESENÇA DE QUITOSANA
F.V.C. Kock1, L.A. Colnago2
Resumo in situ
in situ
Palavras-chave
APPLICATION OF SPECTROELECTROCHEMISTRY IN THE DEVELOPMENT OF COPPER NANODE-
POSITS IN THE PRESENCE OF CHITOSAN
Abstract: in situ
in situ
Keywords:
1. Introdução
in situ
in situ.
et al -
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F.V.C. Kock, L.A. Colnago376
in situ
in situ,
2. Materiais e Métodos
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5 -
O
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scans
in situ -
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in situ
ex-situ” “in situ”
3. Resultados e Discussão
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0 2000 4000 6000 8000 10000 12000
2,0
2,5
3,0
3,5
4,0
4,5
5,0
5,5
Ausência de complexante
Presença de complexante
Remoção de 40,0%
Remoção de 20,0%
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APLICAÇÃO DA ESPECTROELETROQUÍMICA NO DESENVOLVIMENTO DE… 377
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4. Conclusões
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F.V.C. Kock, L.A. Colnago378
Agradecimentos
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Referências
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siagro-2014.indb 378 16/12/14 18:30
