Science China Technological Sciences

, Volume 57, Issue 12, pp 2335–2343

Generation of electricity from CO2 mineralization: Principle and realization

  • HePing Xie
  • YuFei Wang
  • Yang He
  • MaLing Gou
  • Tao Liu
  • JinLong Wang
  • Liang Tang
  • Wen Jiang
  • Ru Zhang
  • LingZhi Xie
  • Bin Liang
Article

DOI: 10.1007/s11431-014-5727-6

Cite this article as:
Xie, H., Wang, Y., He, Y. et al. Sci. China Technol. Sci. (2014) 57: 2335. doi:10.1007/s11431-014-5727-6

Abstract

Current CO2 reduction and utilization technologies suffer from high energy consuming. Thus, an energy favourable route is in urgent demanding. CO2 mineralization is theoretically an energy releasing process for CO2 reduction and utilization, but an approach to recovery this energy has so far remained elusive. For the first time, here we proposed the principle of harvesting electrical energy directly from CO2 mineralization, and realized an energy output strategy for CO2 utilization and reduction via a CO2-mineralization fuel cell (CMFC) system. In this system CO2 and industrial alkaline wastes were used as feedstock, and industrial valuable NaHCO3 was produced concomitantly during the electricity generation. The highest power density of this system reached 5.5 W/m2, higher than many microbial fuel cells. The maximum open circuit voltage reached 0.452 V. Moreover, this system was demonstrated viable to low concentration CO2 (10%) and other carbonation process. Thus, the existing of an energy-generating and environmentally friendly strategy to utilize CO2 as a supplement to the current scenario of CO2 emission control has been demonstrated.

Keywords

CO2 mineralization electricity generation sodium bicarbonates CO2 utilization 

Supplementary material

11431_2014_5727_MOESM1_ESM.pdf (1 mb)
Supplementary material, approximately 1.02 MB.

Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • HePing Xie
    • 1
    • 2
  • YuFei Wang
    • 1
    • 2
  • Yang He
    • 3
  • MaLing Gou
    • 4
  • Tao Liu
    • 1
    • 5
  • JinLong Wang
    • 1
    • 5
  • Liang Tang
    • 1
    • 5
  • Wen Jiang
    • 1
  • Ru Zhang
    • 2
  • LingZhi Xie
    • 1
  • Bin Liang
    • 1
    • 5
  1. 1.Center of CO2 Mineralization and CCUSSichuan UniversityChengduChina
  2. 2.College of Water Resource & HydropowerSichuan UniversityChengduChina
  3. 3.Institute for Nanobiomedical Technology and Membrane Biology, Regenerative Medicine Research Center, West China Hospital, West China Medical SchoolSichuan UniversityChengduChina
  4. 4.State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, Wets China HospitalSichuan UniversityChengduChina
  5. 5.College of Chemical EngineeringSichuan UniversityChengduChina

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