Bio-based Carbon Electrochemically Decorated with Cu Nanoparticles: Green Synthesis and Electrochemical Performance

Abstract

This study aimed to synthesize a composite material composed of bio-based, porous carbon matrix and Cu nanoparticles through a simple, low-cost, and environmentally friendly method. Concentrated Kraft black liquor was used as a carbon precursor, and Cu nanoparticles were homogeneously deposited on the carbon matrix using electrochemical deposition. The textural properties determined using N 2 isotherms indicated increased surface area of a carbon matrix with a micro-mesoporous structure. Voltammetric tests demonstrated that the composite exhibited catalytic properties for electrochemical CO 2 reduction. Compared to the bio-based, porous carbon sample (C matrix), the bio-based carbon electrode electrochemically decorated with Cu nanoparticles (C-Cu composite) exhibited increased current values of approximately 2.4 times, a potential shift of approximately 90 mV, and an onset potential of −1.02 V, under CO 2 saturation.

Kraft Black Liquor as a Carbonaceous Source for the Generation of Porous Monolithic Materials and Applications toward Hydrogen Adsorption and Ultrastable Supercapacitors

“…Recently, a carbon arising from KBL decorated with Cu zerovalent nanoparticles (transitional metals carboreduction) has been employed toward carbon dioxide electrochemical reduction. 29 Until now, versatile carboHIPE offering high surface area and good electronic transport properties simultaneously was missing, because high graphitization promotes undoubtedly low surface area and vice versa. A compromise concerning the thermal treatment was still missing.…”

“…For this particular reason, using KBL as a precursor source toward the generation of functional carbonaceous materials is of outmost interest. Recently, a carbon arising from KBL decorated with Cu zerovalent nanoparticles (transitional metals carbo-reduction) has been employed toward carbon dioxide electrochemical reduction . Until now, versatile carboHIPE offering high surface area and good electronic transport properties simultaneously was missing, because high graphitization promotes undoubtedly low surface area and vice versa.…”

Incorporation of Nanocatalysts for the Production of Bio-Oil from Staphylea holocarpa Wood

“…Biomass energy is currently being analyzed globally and formulate policy measures [ 12 , 13 ]. There is plenty of evidence that biomass wastes are suitable sources for bioenergy materials [ 14 , 15 , 16 , 17 ].…”