A ferroelectric photocatalyst for enhancing hydrogen evolution: polarized particulate suspension

Sangbaek Park; Chan Woo Lee; Min-Gyu Kang; Sanghyeon Kim; Hae Jin Kim; Ji Eon Kwon; Soo Young Park; Chong-Yun Kang; Kug Sun Hong; Ki Tae Nam

doi:10.1039/C4CP01267D

A ferroelectric photocatalyst for enhancing hydrogen evolution: polarized particulate suspension†

Sangbaek Park,^a Chan Woo Lee,^a Min-Gyu Kang,^bc Sanghyeon Kim,^a Hae Jin Kim,^a Ji Eon Kwon,^a Soo Young Park,^a Chong-Yun Kang,^bd Kug Sun Hong*^a and Ki Tae Nam*^a

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* Corresponding authors

^a Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
E-mail: kshongss@plaza.snu.ac.kr, nkitae@snu.ac.kr
Tel: +82-2-880-7165

^b Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul 136-130, Korea

^c Department of Materials Science and Engineering, Korea University, Seoul 136-701, Korea

^d KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 136-701, Korea

Abstract

A particle-based photocatalyst with a permanent internal field prepared by a corona poling method is presented as a novel approach to enhance the hydrogen evolution reaction in a particulate-suspension system. Photocatalytic activity of K_0.5Na_0.5NbO₃ was significantly improved by 7.4 times after the polarization.

Physical Chemistry Chemical Physics

A ferroelectric photocatalyst for enhancing hydrogen evolution: polarized particulate suspension†

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A ferroelectric photocatalyst for enhancing hydrogen evolution: polarized particulate suspension

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