Pt@WS2 Mott-Schottky Heterojunction Boosts Light-Driven Active Ion Transport for Enhanced Ionic Power Harvesting

被引：0

作者：

Jia, Pan ^{[1
]}

Han, Zhitong ^{[1
]}

Chen, Jiansheng ^{[1
]}

Liu, Junchao ^{[2
]}

Wang, Lina ^{[3
]}

Zhang, Xinyi ^{[1
]}

Guo, Yue ^{[1
]}

Zhou, Jinming ^{[1
]}

机构：

[1] Hebei Key Laboratory of Inorganic Nanomaterials, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang,050024, China

[2] School of Sciences, Xi’an University of Technology, Xi’an,710048, China

[3] Testing and Analysis Center, Hebei Normal University, Shijiazhuang,050024, China

来源：

ACS Nano | 2024年 / 18卷 / 52期

关键词：

Bioinspired light-driven ion transport in two-dimensional (2D) nanofluidics offers exciting prospects for solar energy harvesting. Current single-component nanofluidic membranes often suffer from low light-induced driving forces due to the easy recombination of photogenerated electron-hole pairs. Herein; we present a Pt@WS2 Mott-Schottky heterojunction-based 2D nanofluidic membrane for boosting light-driven active ion transport and solar enhanced ionic power harvesting. The photovoltaic effect in the Mott-Schottky heterojunctions and photoconductance effect in WS2 multilayers account for more efficient charge separation across the nanofluidic membrane. In an equilibrium electrolyte solution; we observe directional cationic transport from the WS2 to the Pt region under visible-light illumination. In 10-3 M KCl electrolyte; the photocurrent and photovoltage reach 11.84 μA cm-2 and 30.67 mV; respectively; Moreover; the output power can reach up to 5.02 W m-2 under light illumination; compared to a value of 2.56 W m-2 without irradiation. This work not only introduces a driving mechanism for boosting ion transport but also offers a pathway for integrating multiple energy sources. © 2024 American Chemical Society;

D O I：

10.1021/acsnano.4c15723

中图分类号：

学科分类号：

摘要：

引用

页码：35729 / 35737

共 8 条

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