1
|
Zhang X, Wang H, Xiao T, Chen X, Li W, Xu Y, Lin J, Wang Z, Peng H, Zhang S. Hydrogen Isotope Separation Using Graphene-Based Membranes in Liquid Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:4975-4983. [PMID: 36995779 DOI: 10.1021/acs.langmuir.2c03453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Hydrogen isotope separation has been effectively achieved electrochemically by passage of gaseous H2/D2 through graphene/Nafion composite membranes. Nevertheless, deuteron nearly does not exist in the form of gaseous D2 in nature but as liquid water. Thus, it is a more feasible way to separate and enrich deuterium from water. Herein, we have successfully transferred monolayer graphene to a rigid and porous polymer substrate, PITEM (polyimide track-etched membrane), which could avoid the swelling problem of the Nafion substrate as well as keep the integrity of graphene. Meanwhile, defects in the large area of CVD graphene could be successfully repaired by interfacial polymerization resulting in a high separation factor. Moreover, a new model was proposed for the proton transport mechanism through monolayer graphene based on the kinetic isotope effect (KIE). In this model, graphene plays a significant role in the H/D separation process by completely breaking the O-H/O-D bond, which can maximize the KIE, leading to increased H/D separation performance. This work suggests a promising application for using monolayer graphene in the industry and proposes a pronounced understanding of proton transport in graphene.
Collapse
Affiliation(s)
- Xiangrui Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Hequn Wang
- Beijing Graphene Institute, Beijing 100095, P. R. China
- School of Chemical Engineering & Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Tiantian Xiao
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xiaoyi Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Wen Li
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
- Beijing Graphene Institute, Beijing 100095, P. R. China
| | - Yihan Xu
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jianlong Lin
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Zhe Wang
- School of Chemical Engineering & Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, P. R. China
- School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Hailin Peng
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
- Beijing Graphene Institute, Beijing 100095, P. R. China
| | - Sheng Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| |
Collapse
|
2
|
Zeng N, Hu C, Lv C, Liu A, Hu L, An Y, Li P, Chen M, Zhang X, Wen M, Chen K, Yao Y, Cai J, Tang T. Large-current density and high-durability proton exchange membrane water electrolysis for practical hydrogen isotope separation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|