Author/Authors :
jiwanti, prastika krisma keio university - faculty of science and technology - department of chemistry, Yokohama, Japan , jiwanti, prastika krisma university of airlangga - faculty of science and technology - department of chemistry, Surabaya, Indonesia , aritonang, rani puspitasari universitas indonesia - faculty of mathematics and natural sciences - department of chemistry, Depok, Indonesia , abdullah, imam universitas indonesia - faculty of mathematics and natural sciences - department of chemistry, Depok, Indonesia , einaga, yasuaki keio university - faculty of science and technology - department of chemistry, Yokohama, Japan , ivandini, tribidasari anggraningrum universitas indonesia - faculty of mathematics and natural sciences - department of chemistry, Depok, Indonesia
Abstract :
CO2 electrochemical reduction (CO2ER) activity is known to be influenced by electrode materials. In this study, we report the fabrication of a copper-nickel-modified boron-doped diamond (CuNi-BDD) electrode using wet chemical seeding and electrodeposition. Annealing was performed to improve the stability of the modified electrode during electrolysis. Characterization of the modified BDD electrodes shows successful deposition without damage to the surface of the BDD support material. CO2ER was conducted with the CuNi-BDD electrode, which produces various important products including methanol, formic acid, CO, and CH4. Additionally, a different applied potential affected the product distribution. CO2ER was also conducted on the surfaces of Cu-BDD and Ni-BDD electrodes for comparison.
Keywords :
boron , doped diamond , CO2 reduction , copper , nickel
