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In this paper, aluminosilicate nanozeolite beta has been prepared and completely described using X-ray diffraction (XRD), nitrogen sorption isotherm, Fourier transform infrared (FT-IR), transmission electron micrograph (TEM) and eld emission scanning electronic microscopy (FESEM) techniques. TEM image of synthesized nanozeolite demonstrates semispherical particles with a uniform morphology and dimensions under 50 nm. The BET surface area, total pore volume and pore diameter of it were attained to be 321 m 2 g − 1 , 0.053 cm 3 g − 1 and 1.22 nm, respectively. The modi ed carbon paste electrode by aluminosilicate nanozeolite beta and nickel hydroxide (Ni(OH) 2 -Beta/CPE) was applied for formaldehyde (HCHO) electro-catalytic oxidation in the alkaline media. The obtained results specify that Ni(OH) 2 -Beta/CPE demonstrates worthy electro-catalytic activity for oxidation of HCHO due to mesoporous construction and the great surface area of nanozeolite beta. The electron-transfer coe cient, catalytic rate constant and diffusion coe cient are found to be 0.69, 2.08×10 6 cm 3 mol − 1 s − 1 and 4.4×10 − 7 cm 2 s − 1 , respectively. The Ni(OH) 2 -Beta/CPE exhibited good reproducibility and stability and it has low price, low background current, simplicity of surface renewal. This modi ed electrode has better poisoning tolerance capability than bare CPE for HCHO electro-catalytic oxidation and is a higher device for the long term accomplishment.

In this paper, aluminosilicate nanozeolite beta has been prepared and completely described using X-ray diffraction (XRD), nitrogen sorption isotherm, Fourier transform infrared (FT-IR), transmission electron micrograph (TEM) and field emission scanning electronic microscopy (FESEM) techniques. TEM image of synthesized nanozeolite demonstrates semispherical particles with a uniform morphology and dimensions under 50 nm. The BET surface area, total pore volume and pore diameter of it were attained to be 321 m2 g− 1, 0.053 cm3 g− 1 and 1.22 nm, respectively. The modified carbon paste electrode by aluminosilicate nanozeolite beta and nickel hydroxide (Ni(OH)2-Beta/CPE) was applied for formaldehyde (HCHO) electro-catalytic oxidation in the alkaline media. The obtained results specify that Ni(OH)2-Beta/CPE demonstrates worthy electro-catalytic activity for oxidation of HCHO due to mesoporous construction and the great surface area of nanozeolite beta. The electron-transfer coefficient, catalytic rate constant and diffusion coefficient are found to be 0.69, 2.08×106 cm3 mol− 1 s− 1 and 4.4×10− 7 cm2 s− 1, respectively. The Ni(OH)2-Beta/CPE exhibited good reproducibility and stability and it has low price, low background current, simplicity of surface renewal. This modified electrode has better poisoning tolerance capability than bare CPE for HCHO electro-catalytic oxidation and is a higher device for the long term accomplishment.