Journal article
Inkjet Printing of Electrochemical Flow-through Membranes Using Chitosan-Reduced Precious Metal Inks for Applications in Electrocatalysis
ACS applied nano materials, v 8(27), pp 13904-13913
30 Jun 2025
Abstract
Electrochemical flow-through membranes (EFMs) are tailored for electrochemical flow systems and show potential for applications in energy conversion and environmental remediation, owing to their efficiency and sustainability. Inkjet printing represents a promising and potentially scalable approach for the fabrication of EFMs. However, conventional metal nanoparticle inks often fail to form reliable coatings on porous ceramic substrates. In this study, we introduce an approach utilizing chitosan-assisted reduction of Pd and Pt salt precursors to create stable, printable nanoparticle inks. Chitosan facilitates in situ nanoparticle formation (<60 nm) with favorable rheology and strong substrate adhesion. Post thermal treatment at 650 °C in an Ar atmosphere, the printed films form a triphasic structure comprising metal nanoparticles, amorphous carbon, and ceramic support. The resulting EFMs exhibit high electrical conductivity, excellent water permeability (∼20 LHM at 0.30 bar), and robust electrochemical performance and stability. This study demonstrates a promising and scalable fabrication strategy for EFMs, with potential applicability in electrocatalysis and membrane-based electrochemical processes.
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Details
- Title
- Inkjet Printing of Electrochemical Flow-through Membranes Using Chitosan-Reduced Precious Metal Inks for Applications in Electrocatalysis
- Creators
- Ji Yang - Beijing Institute of Graphic CommunicationJialin Yang - Research Center for Eco-Environmental SciencesMeijuan Cao - Beijing Institute of Graphic CommunicationXueyan SuoPengyu Xiao - Tsinghua UniversityKairui Liu - Tsinghua UniversityYuansheng Qi - Beijing Institute of Graphic CommunicationHai-Feng JiMeng Sun - Research Center for Eco-Environmental Sciences
- Publication Details
- ACS applied nano materials, v 8(27), pp 13904-13913
- Publisher
- ACS Publications
- Number of pages
- 10
- Grant note
- National Key Research and Development Program of China: 2023YFE0113800, 2024YFC3715000 National Key R&D Program of China: 8242030 Natural Science Foundation of Beijing Municipality: KYCPT202506 International Science and Technology Cooperation Base of Green Printing and Publishing Technology: Ec202502 BIGC Project
This work was financially supported by the National Key R&D Program of China (2023YFE0113800 and 2024YFC3715000), Natural Science Foundation of Beijing Municipality grant (8242030), International Science and Technology Cooperation Base of Green Printing and Publishing Technology (KYCPT202506), and BIGC Project (Ec202502).
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; Chemistry
- Web of Science ID
- WOS:001520440200001
- Scopus ID
- 2-s2.0-105009442809
- Other Identifier
- 991022061629304721