Carbon nanofiber encapsulated Bi nanoparticles for electroreduction CO2 toward formate 2023-07-14
IMAGE: ELECTROCHEMICAL CO2 CONVERSION IS ONE OF THE MOST PROMISING STRATEGIES TO ACHIEVE CARBON NEUTRALITY. CARBON NANOFIBER ENCAPSULATED BISMUTH NANOPARTICLES WERE SYNTHESIZED THROUGH ELECTROSPINNING-PYROLYSIS TECHNIQUES, WHICH EXHIBITED EXCELLENT FORMATE SELECTIVITY AND ULTRAHIGH MASS ACTIVITY, PROVIDING A POTENTIAL ALTERNATIVE FOR THE LARGE-SCALE PREPARATION OF ELECTROCATALYSTS AND INDUSTRIALIZED APPLICATION IN ELECTROREDUCTION CO2 TO FORMATE.
CREDIT: CHINESE JOURNAL OF CATALYSIS
What is noteworthy is that the aggregation of the metal nanoparticles might diminish the available active sites and consequently reduce the actual utilization of metal composition. The researchers introduced carbon nanofibers as the support, which can confine the Bi metal aggregation during the pyrolysis and catalysis process, exposing more active sites while improving the stability of catalysts. The as-prepared electrocatalyst, Bi/CNFs-900, demonstrated outstanding selectivity to formate (> 90%) in a neut