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Science China Technological Sciences

, Volume 62, Issue 9, pp 1628–1635 | Cite as

A microfluidic all-vanadium photoelectrochemical cell with a full-spectrum-responsive Ti2O3 photoanode for efficient solar energy storage

  • YingYing Lin
  • Hao Feng
  • Rong ChenEmail author
  • DingDing Ye
  • Biao ZhangEmail author
  • YouXu Yu
  • JinWang Li
Article
  • 15 Downloads

Abstract

The all-vanadium photoelectrochemical cell is one of the promising solar energy storage technologies. However, conventional photoanodes surfer from low solar energy utilization efficiency as a result of narrow spectrum response and poor mass transfer. Hence, in this study, a microfluidic all-vanadium photoelectrochemical cell with a full-spectrum-responsive Ti2O3 photoanode was proposed for efficient solar energy storage. Experimental results indicated that the Ti2O3 photoanode responded to almost the full spectrum of sunlight and exhibited excellent photoresponse and operation stability, which facilitated efficient solar energy utilization. Additionally, the effects of the light intensity, vanadium ion concentration, and electrolyte flow rate were studied. It was found that increasing the light intensity and vanadium ion concentration and reducing the electrolyte flow rate promoted photoelectrochemical reactions and thus improved the solar energy storage performance. The obtained results demonstrate the feasibility and superiority of using Ti2O3 as the photoanode for a photoelectrochemical cell to achieve efficient solar energy storage.

Keywords

Ti2O3 full spectrum response microfluidic all-vanadium photoelectrochemical cell solar energy storage vanadium ion conversion rate 

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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University)Ministry of EducationChongqingChina
  2. 2.Institute of Engineering Thermophysics, School of Energy and Power EngineeringChongqing UniversityChongqingChina

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