Self-crosslinked MXene hollow fiber membranes for H2/CO2 separation

Qu, Kai; Dai, Liheng; Xia, Yongsheng; Wang, Yixing; Zhang, Dezhu; Wu, Yulin; Yao, Zhiqiang; Huang, Kang; Guo, Xuhong; Li, Zhiheng

doi:10.1016/j.memsci.2021.119669

Cited by 42 publications

(30 citation statements)

References 57 publications

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“…Then, EtOH was chose as an intercalant with sonication to enlarge the interlayer spacing and delaminate into Ti 3 C 2 T x nanosheets. 43 The TEM image (Figure 1c) was shown that the lateral dimension of the nanosheets is 1−2 μm. The Ti 3 C 2 T x nanosheets appear smooth and transparent, indicating successful interaction and delamination.…”

Section: Resultsmentioning

confidence: 99%

“…As shown in Figure a and b, accordion-liked Ti 3 C 2 T x was formed from compact layered Ti 3 AlC 2 after etching process. Then, EtOH was chose as an intercalant with sonication to enlarge the interlayer spacing and delaminate into Ti 3 C 2 T x nanosheets . The TEM image (Figure c) was shown that the lateral dimension of the nanosheets is 1–2 μm.…”

Section: Resultsmentioning

confidence: 99%

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Room-Temperature Synthesis of NiCo-Layered Double Hydroxide/MXene Composites for High-Performance Supercapacitors

Wang

et al. 2022

Ind. Eng. Chem. Res.

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The facile preparation of layered double hydroxides (LDHs)/MXene composite at room temperature is still challenging. Herein, we designed and developed a fast and roomtemperature synthesis method to fabricate NiCo-LDH/Ti 3 C 2 T x composites with sandwichlike layered structures via direct NaBH 4 reduction. DFT calculations show that such layered composites can reduce the hydrogen desorption energy and increase the electrical conductivity, which is advantageous to improving electrochemical performance of supercapacitors. These superior features result in the prominent electrochemical performance of the fabricated NiCo-LDH/5-Ti 3 C 2 T x composite electrode, including high specific capacitance (721.5 C/g at 1 A/g), outstanding rate capacity (about 85.2% from 1 to 10 A/g), and excellent stability (80.4% of capacitance retention after 5000 cycles at 5 A/g). This study provides a facile way to construct layered LDHs/ MXene composites with exceptional electrochemical performance, which is expected to be suitable for various applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Room-Temperature Synthesis of NiCo-Layered Double Hydroxide/MXene Composites for High-Performance Supercapacitors

Wang

et al. 2022

Ind. Eng. Chem. Res.

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“…The composite membrane fabricated by the former strategy is known as a mixed matrix hollow fiber membrane, while the latter is TFN hollow fiber membrane. Correspondingly, various nanomaterials have been reported in composite hollow fiber membranes, such as metal oxides [ 186 , 187 , 188 , 189 ], zeolites [ 190 , 191 , 192 ], silica [ 193 , 194 , 195 ], metal organic frameworks (MOFs) [ 196 , 197 , 198 , 199 ], two-dimensional (2D) materials (e.g., graphene oxide (GO) and MXene) [ 200 , 201 , 202 , 203 , 204 ], and mixed nanofillers [ 205 , 206 , 207 ]. The incorporation of nanofillers alters the mobility of polymer chains, induces interfacial voids between the two phases, enhances sorption and affinity toward certain species, and hence ameliorates membrane performance.…”

Section: Types Of Hollow Fiber and Their Preparation Routementioning

confidence: 99%

“…Meanwhile, inorganic hollow fiber membranes such as carbon-based and ceramic-based are extensively reported and focus on H 2 , O 2 , and CO 2 separation. Recent works also include zeolites [ 526 , 527 ], alumina [ 528 ], and MXene [ 201 ] hollow fiber membranes for gas and vapor separation. CMS hollow fiber membranes are temperature- and pressure-resistant materials with a rigid pore structure that are suitable for natural gas sweetening and H 2 purification processes in steam methane reforming plants.…”

Section: Applications Of Hollow Fiber Membranesmentioning

confidence: 99%

State-of-the-Art Organic- and Inorganic-Based Hollow Fiber Membranes in Liquid and Gas Applications: Looking Back and Beyond

Lau

Soh

et al. 2022

Membranes

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The aggravation of environmental problems such as water scarcity and air pollution has called upon the need for a sustainable solution globally. Membrane technology, owing to its simplicity, sustainability, and cost-effectiveness, has emerged as one of the favorable technologies for water and air purification. Among all of the membrane configurations, hollow fiber membranes hold promise due to their outstanding packing density and ease of module assembly. Herein, this review systematically outlines the fundamentals of hollow fiber membranes, which comprise the structural analyses and phase inversion mechanism. Furthermore, illustrations of the latest advances in the fabrication of organic, inorganic, and composite hollow fiber membranes are presented. Key findings on the utilization of hollow fiber membranes in microfiltration (MF), nanofiltration (NF), reverse osmosis (RO), forward osmosis (FO), pervaporation, gas and vapor separation, membrane distillation, and membrane contactor are also reported. Moreover, the applications in nuclear waste treatment and biomedical fields such as hemodialysis and drug delivery are emphasized. Subsequently, the emerging R&D areas, precisely on green fabrication and modification techniques as well as sustainable materials for hollow fiber membranes, are highlighted. Last but not least, this review offers invigorating perspectives on the future directions for the design of next-generation hollow fiber membranes for various applications. As such, the comprehensive and critical insights gained in this review are anticipated to provide a new research doorway to stimulate the future development and optimization of hollow fiber membranes.

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“…[14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] In this decade, a kind of lamellar membrane based on 2D materials has attracted increasing attention, which shows the potential to break through the performance upper bound of traditional membranes. 31 Various 2D nanosheet membranes constructed by graphene, 32 graphene oxide, 4,[33][34][35][36][37] molybdenum sulfide, 38,39 MXenes, [40][41][42][43] 2D zeolites, 44,45 2D MOF, 46,47 and 2D COF, 48 etc. have been studied for gas separation, pervaporation and ion sieving, etc.…”

Section: Introductionmentioning

confidence: 99%

Tubular MXene/SS Membranes for Highly Efficient H2/CO2 Separation

Luo

Zong

Zhao

et al. 2022

Preprint

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Accurately constructing membranes based on two-dimensional (2D) materials on commercial porous substrates remains a significant challenge for H2 purification. In this work, a series of tubular 2D MXene membranes are prepared on commercial porous stainless steel substrates via fast electrophoretic deposition. Compared with other methods, such as filtration or drop coating, etc. such preparation route shows the advantages of simple operation, high efficiency for membrane assembly (within 5 min) with attractive reproducibility, and ease for scale-up. The tubular MXene membranes present excellent gas separation performance with hydrogen permeance of 1290 GPU and H2/CO2 selectivity of 55. Furthermore, the membrane displays extremely stable performance during the long-term test for more than 1250 h, and about 93% of the membranes from one batch have exceeded the DOE target for CO2 capture. Most importantly, this work provides a valuable referential significance for other types of 2D materials-based membranes for future application development.

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Self-crosslinked MXene hollow fiber membranes for H2/CO2 separation

Cited by 42 publications

References 57 publications

Room-Temperature Synthesis of NiCo-Layered Double Hydroxide/MXene Composites for High-Performance Supercapacitors

Room-Temperature Synthesis of NiCo-Layered Double Hydroxide/MXene Composites for High-Performance Supercapacitors

State-of-the-Art Organic- and Inorganic-Based Hollow Fiber Membranes in Liquid and Gas Applications: Looking Back and Beyond

Tubular MXene/SS Membranes for Highly Efficient H2/CO2 Separation

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