Modified Nanopillar Arrays for Highly Stable and Efficient Photoelectrochemical Water Splitting

Lanyan Huang; Qingguo Meng; Chaoqun Shang; Mingliang Jin; Lingling Shui; Yongguang Zhang; Zhang Zhang; Zhihong Chen; Mingzhe Yuan; Xin Wang; Krzysztof Kempa; Guofu Zhou

doi:10.1002/gch2.201800027

Global Challenges (Mar 2019)

Modified Nanopillar Arrays for Highly Stable and Efficient Photoelectrochemical Water Splitting

Lanyan Huang,
Qingguo Meng,
Chaoqun Shang,
Mingliang Jin,
Lingling Shui,
Yongguang Zhang,
Zhang Zhang,
Zhihong Chen,
Mingzhe Yuan,
Xin Wang,
Krzysztof Kempa,
Guofu Zhou

Affiliations

Lanyan Huang: Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangdong China
Qingguo Meng: Shenyang Institute of Automation, Guangzhou Chinese Academy of Sciences Guangzhou Guangdong China
Chaoqun Shang: Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangdong China
Mingliang Jin: Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangdong China
Lingling Shui: Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangdong China
Yongguang Zhang: International Academy of Optoelectronics at Zhaoqing South China Normal University Guangdong China
Zhang Zhang: Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangdong China
Zhihong Chen: Shenyang Institute of Automation, Guangzhou Chinese Academy of Sciences Guangzhou Guangdong China
Mingzhe Yuan: Shenyang Institute of Automation, Guangzhou Chinese Academy of Sciences Guangzhou Guangdong China
Xin Wang: Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangdong China
Krzysztof Kempa: Department of Physics Boston College Chestnut Hill MA 02467 USA
Guofu Zhou: Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics South China Normal University Guangdong China

DOI: https://doi.org/10.1002/gch2.201800027
Journal volume & issue: Vol. 3, no. 3
pp. n/a – n/a

Abstract

Read online

Abstract Atomically modified graphitic carbon nitride quantum dots (QDs), characterized by strongly increased reactivity and stability, are developed. These are deposited on arrays of TiO2 nanopillars used as a photoanode for the photoelectrochemical water splitting. This photoanode shows excellent stability, with 111 h of continuous work without any performance loss, which outperforms the best‐reported results by a factor of 10. Remarkably, our photoanode produces hydrogen even at zero bias. The excellent performance is attributed to the enhancement of photoabsorption, as well as to the promotion of charge separation between TiO2 nanopillars and the QDs.

Published in Global Challenges

ISSN: 2056-6646 (Online)
Publisher: Wiley
Country of publisher: United States
LCC subjects: Technology; Geography. Anthropology. Recreation: Environmental sciences
Website: https://onlinelibrary.wiley.com/journal/20566646

About the journal

Abstract

Keywords