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О научных исследованиях кафедры электрохимии: недавние результаты и перспективы. PowerPoint PPT Presentation


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16 апреля 2013 г. О научных исследованиях кафедры электрохимии: недавние результаты и перспективы. В. В. Малев. Идеализированная схема системы: подложка/пленка/раствор, моделирующей модифицированный электрод.

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О научных исследованиях кафедры электрохимии: недавние результаты и перспективы.

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6432398

16 2013 .

: .

. .


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: //,

  • , ; ; i =1, 2,, M , 6.


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  • 4 :

    c c

    ( )

    , - ,

  • 2 :

    - . 12.38.15.2011

    , . 12.38.77.2012


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Ni schiff

() , (Ni[Schiff]) .

[M(Schiff)] (). Y , R1 R4 .

Schiff = SalEn R1 R4 = H Y = CH2-CH2; CH3O-SalEn R1 =CH3O, ;

Schiff = SaltmEn R1 R4 = H Y = C(CH3)2-(CH3)2; CH3O-SaltmEn R1 =CH3O, ;


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  • A) ( ):

  • R1 e Ox1 and R2 e Ox2, ( 1 )

e-

C) , :

  • : 2R e P

  • : R e Ox;

  • P Ox + R( 3 )

i

i+1

i

i+1

  • B) /:

  • 2R e P and P e B ( 2 )

e-

e-

i+2

i+2, i+3

i, i+1

i

i+1, i+2

i, i+1

i+2, i+3

i, i+1

i, i +1

i

i+1

e-

2P B + 2R( 4 )

i, i+1

i+2

i+3

i+2, i+3

i, i+1


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,

V. Malev, O. Levin // Electrochim. A., 80, (2012), 426

V. Malev, O. Levin // Electrochim. A., (2013),


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Pedot

PEDOT

  • . .


Calculated cv curves of electrodes modified with metal composite polymer films

Calculated CV-curves of electrodes modified with metal-composite polymer films

  • (, ) - ( 1, 2, 3). ( ) ,

    k 0 - . , , .

V.V. Malev, O.V. Levin // Electrochim. A, 56 (2011) 3586-3596


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  • , (b) , (c) , (d)

  • V.V. Malev, O.V. Levin // J. Russ. Electrochemistry, 48 (2012) 413


Pedot au h 2 o 2

; PEDOT/Au + H2O2 ( - )

H2O2 GC/PEDOT PBS (1) (3) 0.001 M H2O2, GC/PEDOT/Au ( PBS) (2) (4) 0.001 M H2O2.

Kondratiev V.V., Pogulaichenko N.A., Tolstopjatova E.G., Malev V.V., J. Solid State Electrochem.,15(2011) 2383-2393

12


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; -o- + ( )

-.

6 104 M; (1) - , (2)(4) , PPD; L, nm: (2) 150, (3) 330, (4) 390.

Russian Journal of Electrochemistry, 2008, Vol. 44, No. 1, pp. 98103

13


Pedot au h 2 o 21

PEDOT/Au + H2O2 (- )

Koutecky-Levich plotsof 1/Id() vs. -1/2 for the hydrogen peroxide reduction on composite PEDOT/Au film in PBS solution plus 110-3 M H2O2 at different durations of gold loading from solution of 110-3 HAuCl4, s: 1 - 720, 2 60, 3 60 (partial currents). Curve 3 represents partial limiting currents of H2O2 reduction on gold particles.

V.V. Kondratiev et al. Hydrogen peroxide electroreduction on composite PEDOT films with included gold nanoparticles; J. Solid State Electrochemistry December 2011,Volume 15,Issue 11-12,pp 2383-2393

14


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+ 2 +

+ 2 + 22 + 2H2O2

:

():

():

(

, MnO2)

22 O2 + 2H+ + 2e(+350 mV vs Ag/AgCl)


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MnO2

0 100 150 200

t, .

1* 10-6

100 .


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