Abstract
Waste management has become an ever-increasing global issue due to population growth and rapid globalisation. For similar reasons, the greenhouse effect caused by fossil fuel combustion, is leading to chronic climate change issues. A novel approach, the waste-to-hydrogen process, is introduced to address the concern of waste generation and climate change with an additional merit of production of a renewable, higher energy density than fossil fuels and sustainable transportation fuel, hydrogen (H2) gas. In the downstream H2 purifying process, membrane separation is one of the appealing options for the waste-to-hydrogen process given its low energy consumption and low operational cost. However, commercial polymeric membranes have hindered membrane separation process due to their low separation performance. By introducing novel two-dimensional materials as substitutes, the limitation of purifying using conventional membranes can potentially be solved. Herein, this article provides a comprehensive review of two-dimensional materials as alternatives to membrane technology for the gas separation of H2 in waste-to-hydrogen downstream process. Moreover, this review article elaborates and provides some perspectives on the challenges and future potential of the waste-to-hydrogen process and the use of two-dimensional materials in membrane technology.
Original language | English |
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Article number | 128065 |
Journal | Bioresource Technology |
Volume | 364 |
Early online date | 4 Oct 2022 |
DOIs | |
Publication status | Published - 30 Nov 2022 |
Bibliographical note
Funding Information:C.Y.L. thanks the University of Bath for a Research Studentship. This work was supported by the Fujian Provincial Department of Science and Technology ( 2019Y0006 ), Jinan City-school Integration Development Strategy Project (No. JNSX2021048 ) and the Royal Society ( IEC\NSFC\211021 ). M.X. also thanked the financial support from the Leverhulme Trust (RPG-2022-177).
Keywords
- Fabrication
- Gas separation
- Hydrogen purification
- Two-dimensional materials
- Waste to hydorgen
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal