TY  - JOUR
TI  - Remarkable bismuth-gold alloy decorated on MWCNT for glucose electrooxidation: the
effect of bismuth promotion and optimization via response surface methodology
AB  - In this study, the carbon nanotube supported gold, bismuth, and gold-bismuth (Au/MWCNT, Bi/MWCNT, and Au-Bi/ MWCNT) nanocatalysts were prepared with NaBH4 reduction method at varying molar atomic ratio for glucose electrooxidation (GAEO). The synthesized nanocatalysts at different Au: Bi atomic ratios are characterized via x-ray diffraction (XRD), transmission electron microscopy (TEM), and $N_2$ adsorption-desorption. For the performance of AuBi/MWCNT for GAEO, electrochemical measurements are performed by using different electrochemical techniques namely cyclic voltammetry (CV), linear sweep voltammetry (LSV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS). Monometallic Au/MWCNT exhibits higher activity than Bi/MWCNT with 256.57 mA/mg (0.936 mA/cm2 ) current density. According to CV results, Au80Bi20/MWCNT nanocatalyst has the highest GAEO activity with the mass activity of 320.15 mA/mg (1.133 mA/cm2 ). For $Au_{80}Bi_{20}/MWCNT$, central composite design (CCD) is utilized for optimum conditions of the electrode preparation. $Au_{80}Bi_{20}/MWCNT$ nanocatalysts are promising anode nanocatalysts for direct glucose fuel cells (DGFCs). 
AU  - er, ömer faruk
AU  - Demir Kivrak, Hilal
AU  - Ulas, Berdan
DO  - 10.3906/kim-2102-16
PY  - 2021
JO  - Turkish Journal of Chemistry
VL  - 45
IS  - 4
SN  - 1300-0527
SP  - 1173
EP  - 1188
DB  - TRDizin
UR  - http://search/yayin/detay/526914
ER  -