TY - JOUR ID - 284 TI - Application of Pd-Substituted Ni-Al Layered Double Hydroxides for the Hydrogen Evolution Reaction JO - Hydrogen, Fuel Cell & Energy Storage JA - HFE LA - en SN - 2980-8537 AU - Madram, Ali Reza AU - Zandi Atashbar, Navid AD - Faculty of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology AD - Faculty of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology, Tehran 15875-1774, IRAN Y1 - 2015 PY - 2015 VL - 2 IS - 4 SP - 253 EP - 261 KW - Hydrogen evolution reaction KW - Layered double hydroxides KW - Carbon black KW - Pd substitution DO - 10.22104/ijhfc.2015.284 N2 - Clean production of hydrogen from electrochemical water splitting has been known as a green method of fuel production. In this work, electrocatalytic hydrogen evolution reaction (HER) was investigated at new prepared layered double hydroxides (LDH) in acidic solution. NiAl/carbon black (CB) LDH was monitored using x-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM). The substitution of nickel ions with palladium ones was recorded using Energy dispersive X–ray spectroscopy (EDX) .Moreover, the NiAl-LDH/CB and palladium substituted LDH were examined for the HER at different times of substitution. The modified NiAl-LDH/CB/Pd/GCE represented low overpotential of -0.55 V vs Ag/AgCl, Tafel slope of 125 mV/dec, charge transfer coefficient of 0.47, exchange current of 2.56 µA, as well as excellent long-term stability. Moreover, the substitution effect of palladium ions on the modification of prepared LDH GCE was satisfactorily studied for the HER in 0.5 mol L-1 H2SO4 using electrochemical impedance spectroscopy. UR - https://hfe.irost.ir/article_284.html L1 - https://hfe.irost.ir/article_284_c63de9a1209d99fd437f2cf64a50edf2.pdf ER -