Related Experiment Video
Updated: Sep 25, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Electrochemical conversion of CO2 into value-added carbon with desirable structures via molten carbonates
Peng Wang1, Mingzhi Wang1, Jianqiao Lu1
1Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University Daqing 163318 China pengwangdy@163.com.
Abstract:
Direct conversion of CO2 to high value-added carbon products based on molten salt electrochemistry has been proven to be a feasible approach to solve the climate problem and achieve carbon neutrality. In this work, carbon nanotubes (CNTs), carbon spheres (CSs) and honeycomb carbon are synthesized by electrolysis of a single or multiple alkali metal carbonate electrolyte. The elemental composition, morphology and structure, crystallinity and graphitization degree of carbon products are characterized by electron dispersive spectroscopy (EDS), scanning electron microscopy (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and Raman microspectroscopy (RAM). The results demonstrate that a high yield of CNTs is obtained in Li2CO3 electrolyte by regulating the electrolysis temperature and current density. Compared to pure Li2CO3, Li-Na carbonate electrolyte with 1 wt% stannic oxide/cerium oxide (SnO2/GeO2) favors CS formation rather than CNT formation. Additionally, honeycomb carbon products are generated in Li-Na-K electrolyte, when the electrolysis temperature is lower than 600 °C. Overall, this work provides a novel carbon neutral strategy where high value-added carbon products are synthesized using CO2 as a carbon source.
More Related Videos
11:14Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
06:34Operation of a 25 KWth Calcium Looping Pilot-plant with High Oxygen Concentrations in the Calciner
Published on: October 25, 2017
Related Concept Videos
The Carbon Cycle
Carbon-dioxide Fixation
Electrodeposition
Electrodeposition can...
Electrolysis
Controlled-Current Coulometry: Overview
Loss of Carboxy Group as CO2: Decarboxylation of β-Ketoacids