Details

Autor(en) / Beteiligte

• Yan, Pan‐Ping
• Chen, Xia‐Chao
• Liang, Zi‐Xuan
• Fang, You‐Peng
• Yao, Juming
• Lu, Chun‐Xin
• Cai, Yurong
• Jiang, Lei

Titel

Two‐Dimensional Nanofluidic Membranes with Intercalated In‐Plane Shortcuts for High‐Performance Blue Energy Harvesting

Ist Teil von

• Small (Weinheim an der Bergstrasse, Germany), 2023-01, Vol.19 (4), p.e2205003-n/a

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Wiley Online Library

Beschreibungen/Notizen

• Two‐dimensional nanofluidic membranes offer great opportunities for developing efficient and robust devices for ionic/water‐nexus energy harvesting. However, low counterion concentration and long pathway through limited ionic flux restrict their output performance. Herein, it is demonstrated that rapid diffusion kinetics can be realized in two‐dimensional nanofluidic membranes by introducing in‐plane holes across nanosheets, which not only increase counterion concentration but also shorten pathway length through the membranes. Thus, the holey membranes exhibited an enhanced performance relative to the pristine ones in terms of osmotic energy conversion. In particular, a biomimetic multilayered membrane sequentially assembled from pristine and holey sections offers an optimized combination of selectivity and permeability, therefore generating a power density up to 6.78 W m−2 by mixing seawater and river water, superior to the majority of the state‐of‐the‐art lamellar nanofluidic membranes. This work highlights the importance of channel morphologies and presents a general strategy for effectively improving ion transport through lamellar membranes for high‐performance nanofluidic devices. A biomimetic multilayered membrane sequentially assembled from pristine and holey sections can offer an optimized combination of ion selectivity and permeability. It can generate an enhanced performance in terms of osmotic energy conversion, which is superior to the majority of the state‐of‐the‐art lamellar nanofluidic membranes.