TY - JOUR
T1 - Modifying Ionic Membranes with Carbon Dots Enables Direct Production of High-Purity Hydrogen through Water Electrolysis
AU - Wang, Song
AU - Zhang, Daliang
AU - Ma, Xiaohua
AU - Liu, Jiucong
AU - Chen, Yanli
AU - Zhao, Yunfeng
AU - Han, Yu
N1 - KAUST Repository Item: Exported on 2021-08-19
Acknowledgements: This work was supported by the open fund of the key laboratory of advanced functional polymer materials, the ministry of education (KLFPM202001) and the National Natural Science Foundation of China (grant no: 22078245).
PY - 2021/8/16
Y1 - 2021/8/16
N2 - Traditional electrolysis of water produces hydrogen with a purity of ∼98%. Using ion transport membranes to prevent the migration of oxygen (O2) from the anode to the cathode, the purity of H2 can be increased to ∼99.8%, but it still cannot fulfill the requirement for use in fuel cells (>99.97%). Here, we report that modifying a commercial ionic membrane (Nafion) with carbon dots (CDs) can further inhibit O2 permeation across the membrane, while effectively improving its ion transportability. The key to achieve these effects is the rational design and proper loading of the CDs, which narrows the pore size of the membrane from ∼4 nm to
AB - Traditional electrolysis of water produces hydrogen with a purity of ∼98%. Using ion transport membranes to prevent the migration of oxygen (O2) from the anode to the cathode, the purity of H2 can be increased to ∼99.8%, but it still cannot fulfill the requirement for use in fuel cells (>99.97%). Here, we report that modifying a commercial ionic membrane (Nafion) with carbon dots (CDs) can further inhibit O2 permeation across the membrane, while effectively improving its ion transportability. The key to achieve these effects is the rational design and proper loading of the CDs, which narrows the pore size of the membrane from ∼4 nm to
UR - http://hdl.handle.net/10754/670651
UR - https://pubs.acs.org/doi/10.1021/acsami.1c09214
U2 - 10.1021/acsami.1c09214
DO - 10.1021/acsami.1c09214
M3 - Article
C2 - 34433251
SN - 1944-8244
JO - ACS Applied Materials & Interfaces
JF - ACS Applied Materials & Interfaces
ER -