Na⁺-Gated Water-Conducting Nanochannels for Boosting CO₂ Conversion to Liquid Fuels


Robust, gas-impeding water-conduction nanochannels that can sieve water from small gas molecules such as hydrogen (H2), particularly at high temperature and pressure, are desirable for boosting many important reactions severely restricted by water (the major by-product) both thermodynamically and kinetically. Identifying and constructing such nanochannels into large-area separation membranes without introducing extra defects is challenging. We found that sodium ion (Na+)-gated water-conduction nanochannels could be created by assembling NaA zeolite crystals into a continuous, defect-free separation membrane through a rationally designed method. Highly efficient in situ water removal through water-conduction nanochannels led to a substantial increase in carbon dioxide (CO2) conversion and methanol yield in CO2 hydrogenation for methanol production.


Chemical and Biochemical Engineering

Research Center/Lab(s)

Center for Research in Energy and Environment (CREE)

Keywords and Phrases

Aluminum; Carbon Dioxide; Carbon Monoxide; Copper; Fuel; Hydrogen; Methanol; Nanochannel; Sodium Ion; Water; Zeolite; Zinc, Carbon Dioxide; High Temperature; Hydraulic Conductivity; Membrane; Nanocomposite; Nanotechnology; Separation; Sodium; Thermodynamics, Adsorption; Article; Brunauer Emmett Teller; Catalyst; Chemical Composition; Controlled Study; Crystal; Density Functional Theory; Energy Dispersive X Ray Spectroscopy; Gas; Hydrogenation; Measurement; Priority Journal; Scanning Electron Microscopy; Surface Area; Water Permeability

International Standard Serial Number (ISSN)


Document Type

Article - Journal

Document Version


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© 2020 The Authors, All rights reserved.

Publication Date

01 Feb 2020

PubMed ID