Electrodeposition of Ni on MWNTs as a promising catalyst for CO₂RR

Abstract

Novel methods for the preparation of metal‐supported materials are desired for better catalytic performance and selectivity. In this article, Ni supported on multiwall nanotubes (Ni/MWNTs) is synthesized with electrodeposition method for electrocatalytic CO2 reduction reaction (CO2RR). The sample drying time after electrodeposition is found critical to oxidize Ni for better activity, and higher Ni oxidation state is required for CO2RR. The loading effect study proves that higher current density is achieved from small Ni clusters than that from large nano particles. This work provides a pioneer approach to synthesize small Ni clusters using electrodeposition method for electrocatalytic CO2 conversion.

Emerging materials for electrochemical CO2reduction: progress and optimization strategies of carbon-based single-atom catalysts

“…122,123 The electrodeposition technique is one of the commonly used methods for preparing electrocatalysts and has a number of greatly outstanding advantages, such as simple equipment and environmental friendliness. 123 More importantly, using this technique, loaded catalysts can be directly deposited on different substrates (carbon-based materials, 124–126 metal foams 127–129 and metal foils, 128 etc .) to prepare CO 2 RR electrodes without the addition of other binders and conductive additives.…”

Recent progress in electrochemical reduction of carbon dioxide on metal single‐atom catalysts

“…Electrodeposition is another promising technique for preparing M-SACs. 17,54 The metal loading and the dispersion of metal atoms are controlled by electrodeposition conditions including electrode potentials, ion concentration, and pH value. 55,56 For example, Zhang et al prepared a series of M-SACs (Ru, Rh, Pd, Ag, Pt, and Au) through electrodeposition.…”

“…The Co‐N 5 exhibited high CO selectivity (over 90%) in CO 2 RR. Electrodeposition is another promising technique for preparing M‐SACs 17,54 55,56 .…”

Cu/Fe3O4 Nanocomposites from Layered Double Hydroxides as Catalysts for Selective Electroreduction of Carbon Dioxide

“…Due to the low reserves and high price of noble metal electrocatalysts, transition metal-based electrocatalysts for CO 2 reduction in alkaline media have high economic feasibility and stability, − and they have been widely concerned in the development of various electrocatalysts. Fe-based materials are considered as promising electrochemical catalysts due to their high reserves, low cost, and environmental friendliness .…”