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Functional Membranes for High Efficiency Molecule and Ion Transport · Jingtao Wang Wenjia Wu Editors Functional Membranes for High Efficiency Molecule and Ion Transport Editors Jingtao Wang Wenjia Wu School of Chemical Engineering School of Chemical Engineering Zhengzhou University Zhengzhou University Zhengzhou, Henan, China Zhengzhou, Henan, China ISBN 978-981-19-8154-8 ISBN 978-981-19-8155-5 (eBook) https://doi.org/10.1007/978-981-19-8155-5 Jointly published with Science Press The print edition is not for sale in China mainland. Customers from China mainland please order the print book from: Science Press. © Science Press 2023 This work is subject to copyright. All rights are solely and exclusively licensed by the Publisher, whether the whole or part of the material is concerned, specifically the rights of reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publishers, the authors, and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publishers nor the authors or the editors give a warranty, expressed or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publishers remain neutral with regard to jurisdictional claims in published maps and institutional affiliations. This Springer imprint is published by the registered company Springer Nature Singapore Pte Ltd. The registered company address is: 152 Beach Road, #21-01/04 Gateway East, Singapore 189721, Singapore Foreword Over the past few decades, membrane technology has attracted increasing interests in a broad range of applications like energy, environment, water, food, and medicine, because of its high energy efficiency, easy scalability and small capital investment, as well as environmental friendliness. Membranes, acting as selective barriers that allow the preferential permeation of certain chemical species, determine the efficiency, cost, and stability of membrane technology. Although remarkable progresses have been achieved in membrane technology, the trade-off between selectivity and permeability of membranes remains a great challenge. To this end, intensive research efforts have been dedicated to developing novel membrane materials and membrane structures, including novel building blocks (block copolymer, polymer of intrinsic microporosity (PIM), porous organic cage (POC), porous aromatic framework (PAF), metal-organic framework (MOF), covalent organic framework (COF), etc.), inorganic zeolite and ceramic membranes, nanophase-separated membrane, composite membrane, and lamellar membrane, among others. This book reviews the design, fabrication, structure manipulation, and mass transfer mechanism exploration of several kinds of membranes, including hybrid membrane, composite membrane, nanofiber composite membrane, and 2D lamellar membrane, for applications as organic solvent nanofiltration (OSN) membrane, proton exchange membrane (PEM), and separator/electrolyte in lithium battery. The book is composed of seven chapters. Chap1t egri ves a brief introduction to membranes, including the category, definition, design strategy, and application, with an emphasis on OSN membrane, PEM, and separator/electrolyte for lithium battery. Chapter 2, contributed by Wenpeng Li, Shiyuan Liu, and Jingjing Chen, introduces the fabrication as well as the structure and performance control of polymer-based composite membranes for OSN, which mainly concentrate on manipulating the struc- ture of active layer with nanofillers. Chap3te, r contributed by Xiaoli Wu, Yifan Li, and Jingtao Wang, introduces the fabrication as well as the structure and performance control of inorganic-nanosheet-based lamellar membranes for OSN, which mainly concentrate on manipulating the structure of interlayer channel by anchoring or inter- calating functionalized species. Chapte4r , contributed by Guoli Zhou, Jingchuan Dang, and Jingtao Wang, introduces the fabrication as well as the structure and v vi Foreword performance control of polymer-based composite membranes as PEM for hydrogen fuel cell, which mainly concentrate on manipulating the structure of transfer channel with nanofillers and ionic liquid. Chapt5e,r contributed by Jianlong Lin, Wenjia Wu, and Jingtao Wang, introduces the fabrication as well as the structure and performance control of inorganic nanosheet-based lamellar membranes and polymer nanofiber- based composite membranes as PEM for hydrogen fuel cell, which mainly concen- trate on manipulating the structure of interfacial transfer pathway by inducing func- tional group rearrangement. Chapte6r, contributed by Weijie Kou, Jiajia Huang, and Wenjia Wu, introduces the fabrication as well as the structure and performance control of polymer-based separators for lithium–sulfur battery, which mainly concentrate on decorating the commercial separators with nanofibers and inorganic nanosheets. Chapter 7, contributed by Jie Zhang, Yafang Zhang, and Jingtao Wang, introduces the fabrication as well as the structure and performance control of polymer-based composite solid-state electrolyte for lithium ion battery, which mainly concentrate on manipulating the structure of mass transfer channel with nanofillers. This book is a valuable reference for designing and fabricating high-performance membranes for applications in OSN, hydrogen fuel cell, and lithium battery and is suitable for broad scientific communities including chemical engineers, chemists, materials scientists and biomedical engineering researchers, as well as the graduate students in related fields. Zhongyi Jiang Tianjin University Tianjin, China Contents 1 Introduction to Membrane...................................... 1 Jingtao Wang and Wenjia Wu 2 Composite Membrane for Organic Solvent Nanofiltratio.n......... 7 Wenpeng Li, Shiyuan Liu, and Jingjing Chen 3 Lamellar Membrane for Organic Solvent Nanofiltratio.n.......... 65 Xiaoli Wu, Yifan Li, and Jingtao Wang 4 Composite Proton Exchange Membrane for Hydrogen Fuel C.e.l.l. 103 Guoli Zhou, Jingchuan Dang, and Jingtao Wang 5 Lamellar and Nanofiber-Based Proton Exchange Membranes for Hydrogen Fuel Cell......................................... 167 Jianlong Lin, Wenjia Wu, and Jingtao Wang 6 Composite Separator or Electrolyte for Lithium–Sulfur Batter.y... 219 Weijie Kou, Jiajia Huang, and Wenjia Wu 7 Composite Electrolyte for All-Solid-State Lithium Batter.y........ 253 Jie Zhang, Yafang Zhang, and Jingtao Wang vii Chapter 1 Introduction to Membrane Jingtao Wang and Wenjia Wu In the past decades, membrane technology has been widely utilized in various sepa- ration processes, because of their low-energy consumption, low-cost, reliability, and scalability when compared with conventional separation processes like distillation, extraction, or crystallization [1, 2]. In order to further increase the competitiveness, intensive efforts have been made from improving the separation efficiency of existing membrane processes to exploring new applications. As the core part, membrane materials with high permeability, high selectivity, and high stability are extremely desired since they can significantly accelerate the practical application of membrane technology [3, 4]. To date, plenty of membranes with different pore sizes have been developed, such as polymer membrane, ceramic membrane, two-dimensional (2D) lamellar membrane, molecule sieving membrane, hybrid membrane, and composite membrane [5–10]. These membranes have been widely used for different separation processes including, microfiltration, ultrafiltration, nanofiltration, reverse osmosis, gas separation, and proton/ion conduction, etc. [11, 12]. For each category of membrane, the physical and chemical environments of transfer channels are of great importance in manipulating the comprehensive proper- ties. The physical environments are dictated by the connectivity, tortuosity, and size of transfer channels, while the chemical environments are dictated by the type, amount, and distribution of functional groups within transfer channels [13]. Generally, ideal transfer channels should integrate the following attributes: (i) they should be short with appropriate transfer environment to endow membranes with high permeability, (ii) the channel size distribution should be narrow to endow membranes with high B J. Wang ( ) · W. Wu School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China e-mail: [email protected] W. Wu e-mail: [email protected] J. Wang Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450003, P. R. China © Science Press 2023 1 J.W anga ndW.Wu(eds.),F unctional Membranes for High Efficiency Molecule and Ion Transport, https://doi.org/10.1007/978-981-19-8155-5_1 2 J.WangandW.Wu selectivity, and (iii) the chemical and mechanical stability should be high to endow membranes with long-term operation stability [14]. Currently, polymers are the dominant membrane materials, due to their easy processability and high scale-up capability. For conventional polymer membranes, breaking the permeability–selec- tivity or permeability–stability trade-off remains a challenge. The great progress in polymer membranes over the past decades has brought about the booming of novel kinds of structured membranes including, hybrid membrane, composite membrane, and phase-separated membrane, which push the separation performances of polymer membranes to new records [15–18]. Hybrid membrane is an intricately structured membrane configuration, owing to its merit of coupling the good flexibility and processability of polymers with the regular topological structure as well as the tunable functionality of fillers [19, 20]. Impermeable fillers such as silica particles, graphene oxide (GO) nanosheets, and organic/inorganic nanorods can induce a distortion of chain alignment to improve the free volume property or induce the construction of long-range, ordered transfer channels in membrane [21, 22]. Permeable fillers such as metal–organic frameworks (MOFs), covalent organic frameworks (COFs), and zeolite can afford additional transfer pathways and mechanisms to membrane including, molecule sieving, and selective adsorption [23, 24]. Composite membrane for molecule transfer is generally a heterogeneous membrane with dense separation layer and porous support layer, where the sepa- ration layer and the support layer can be separately optimized to achieve simultane- ously high separation performance and stability [25, 26]. Particularly, the fabrication of composite membrane with an ultrathin separation layer is deemed as a delicate strategy to achieve highly permeable membrane, which is one of the most impor- tant pursuits for membrane technology [27, 28]. At present, researches related to composite membranes mainly focus on the precise manipulation of physical struc- ture and chemical component of separation layer; however, these remain challenging due to the pursuit of ultrathin thickness. For proton/ion separation, electrospinning is increasingly recognized as a powerful mean for introducing unique phase-separated architectures into composite membranes [29]. Indeed, it allows the elaboration of composite membranes with a rather facile mean to control of the long-range organiza- tion/distribution/percolation of hydrophilic and hydrophobic domains of the ionomer by adjusting the type of electrospun material, the volume fraction of nanofibers, and the experimental conditions [30]. Moreover, electrospinning can impart uniaxial alignment of polymer chains within nanofibers, resulting in enhanced mechanical properties. Importantly, it can promote the formation of interconnected transfer channels, which facilitate the improvement in proton/ion conduction [31]. In recent years, 2D nanosheets, with a thickness of one to a few atoms, have become the promising building blocks for advanced membranes [32]. Moreover, the nanosheets can be designed with precise pore size along with targeted chem- ical functionality, enabling their extraordinary physical or chemical selectivity [33]. Through a facile filtration process, 2D lamellar membranes can be fabricated with either porous or nonporous nanosheets. The transfer channels based on nonporous nanosheets refer to the interlayer channels of lamellar membranes, differing from 1 IntroductiontoMembrane 3 the pores of porous nanosheet-based lamellar membranes [34]. To date, a large number of nonporous nanosheets have been developed including, graphene oxide (GO), hexagonal boron nitride (h-BN), MXenes, transition metal dichalcogenides (TMDs), layered double hydroxides (LDHs), etc., most of which are easy to fabricate. For 2D lamellar membranes fabricated with nonporous nanosheets, the researchers are mainly concentrated on controlling the physical structure and chemical compo- nent of interlayer channels. However, the interlayer channel is usually tortuous. To this end, intrinsically porous nanosheets are developed. The transfer channels based on this kind of nanosheet refer to the channels from the intrinsic pores on nanosheets [35]. Intrinsically porous nanosheets can be 2D zeolites, 2D MOFs, 2D COFs, etc. In this work, we focus on the application of membrane technology on organic solvent nanofiltration, hydrogen fuel cell, and lithium ion battery. We prepared several kinds of membranes, including hybrid membrane, composite membrane, nanofiber composite membrane, and 2D lamellar membrane, and the microstructure and performance of membrane were efficiently manipulated. In addition, the rele- vant transfer/separation mechanisms were deeply studied, and the transfer model equations were established. For organic solvent nanofiltration, the category of membrane mainly contains hybrid membrane, composite membrane, and 2D lamellar membrane. For hydrogen fuel cell, the category of membrane mainly includes hybrid membrane, nanofiber composite membrane, and 2D lamellar membrane. With respect to lithium ion or lithium–sulfur battery, hybrid membrane and 2D lamellar membrane are investigated in detail. The microstructures and performances as well as the structure-performance relationships of membranes are systematically inves- tigated. Based on this, we preliminarily disclose the mass transfer mechanism in confined spacing and obtain a series of high-performance membranes and membrane materials. Hopefully, this work will offer some guidance on the design of advanced membranes with diverse transfer channels for applications in separation, catalysis, energy conversion, and storage, etc. References 1. D.S. Sholl, R.P. Lively, Seven chemical separations to change the world. Nat. News 532, 435–437 (2016) 2. L. Yang, S. Qian, X. Wang, X. Cui, B. Chen, H. Xing, Energy-efficient separation alternatives: metal-organic frameworks and membranes for hydrocarbon separation. Chem. Soc. Rev. 49, 5359–5406 (2020) 3. H. B. Park, J. Kamcev, L. M. Robeson, M. Elimelech, B. D. Freeman, Maximizing the right stuff: the trade-off between membrane permeability and selectivity. Science, 356, eaab0530 (2017) 4. S. Wang, L. Yang, G. He, B. Shi, Y. Li, H. Wu, R. Zhang, S. Nunes, Z. Jiang, Two-dimensional nanochannel membranes for molecular and ionic separations. Chem. Soc. Rev. 49, 1071–1089 (2020) 5. A.C. Balazs, T. Emrick, T.P. Russell, Nanoparticle polymer composites: where two small worlds meet. Science 314, 1107–1110 (2006)

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