Solid State Ionics最新文献_第6页

Interface formation by composite electrolytes using Li7La3Zr2O12 / Li2OHBr for bulk-type sintering-free oxide-based all-solid-state batteries

IF 3 4区材料科学

Solid State Ionics Pub Date : 2025-02-01 DOI: 10.1016/j.ssi.2024.116770

Yusuke Taniguchi , Mari Yamamoto , Atsutaka Kato , Masanari Takahashi

{"title":"Interface formation by composite electrolytes using Li7La3Zr2O12 / Li2OHBr for bulk-type sintering-free oxide-based all-solid-state batteries","authors":"Yusuke Taniguchi , Mari Yamamoto , Atsutaka Kato , Masanari Takahashi","doi":"10.1016/j.ssi.2024.116770","DOIUrl":"10.1016/j.ssi.2024.116770","url":null,"abstract":"<div><div>Garnet-type crystalline Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> (LLZs) is an oxide-based electrolyte (SE) that exhibits high ionic conductivity at room temperature. However, the LLZs green compact exhibits a remarkably low conductivity owing to the challenges in deforming LLZ particles using solely cold-pressing. Therefore, the ionic conduction path becomes extremely narrow in point contact, resulting in increased grain boundary resistance. We proposed the realization of a green compact with high ionic conductivity and a large area by combining the antiperovskite-like crystal Li<sub>2</sub>OHBr as a soft SE and LLZs as a highly conductive hard SE. In this study, highly lithium-ion-conductive composites of LLZs and antiperovskite-like crystal Li<sub>2</sub>OHBr were prepared using ball milling. The composite powders were then palletized via uniaxial pressing at room temperature. Cross-sectional scanning electron microscopy images of the green compact revealed the presence of Li<sub>2</sub>OHBr phases in the voids of LLZs particles. The total conductivity of the obtained 30 vol% Li<sub>2</sub>OHBr-LLZ green compact was 7.1 × 10<sup>−5</sup> S cm<sup>−1</sup> at 60 °C. Moreover, sintering-free oxide-based all-solid-state battery was successfully fabricated using the 50 vol% Li<sub>2</sub>OHBr-LLZs composite and LiFePO<sub>4</sub> to obtain a reversible capacity of approximately 90 mAh g<sup>−1</sup>.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"420 ","pages":"Article 116770"},"PeriodicalIF":3.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Three-dimensional cross-linked interface with high ionic transference number and electrical conductivity for high-performance aqueous Zn-ion batteries

IF 3 4区材料科学

Solid State Ionics Pub Date : 2025-01-31 DOI: 10.1016/j.ssi.2025.116790

Hao Luo , Chengze Li , Wenxiang Sheng , Weimin Yuan , Xiao Chen , Qianqian Ma , Xiaowu Li , Zhenjie Sun , Peng Li

{"title":"Three-dimensional cross-linked interface with high ionic transference number and electrical conductivity for high-performance aqueous Zn-ion batteries","authors":"Hao Luo , Chengze Li , Wenxiang Sheng , Weimin Yuan , Xiao Chen , Qianqian Ma , Xiaowu Li , Zhenjie Sun , Peng Li","doi":"10.1016/j.ssi.2025.116790","DOIUrl":"10.1016/j.ssi.2025.116790","url":null,"abstract":"<div><div>Aqueous zinc-ion batteries (AZIBs) have been the subject of considerable research due to their safety and energy density, but these processes are constrained by the growth of dendrites and interfacial side reactions. Herein, a three-dimensional cross-linked polypyrrole and microcrystalline cellulose (PPy/MCC) composites are fabricated through the force of hydrogen bonding on the surface of zinc anodes. The distinctive cross-linking conductive network could enhance the Zn<sup>2+</sup> transport process and storage, ensuring uniform charge distribution and further elevating the Zn<sup>2+</sup> transference number. The abundant functional groups of PPy/MCC offer numerous zincophilic nucleation sites thereby promoting uniform zinc deposition. Additionally, the hydrophobic PPy/MCC coating acts as a barrier, shielding the zinc anode from the aqueous electrolyte and effectively inhibiting side reactions like corrosion and hydrogen production. Consequently, the zinc anode coated with the PPy/MCC layer (PPy/MCC@Zn) achieves steady and reversible Zn cycling. The PPy/MCC@Zn//PPy/MCC@Zn symmetric batteries harvest a long cycling stability exceeding 3400 h at a current density of 1 mA cm<sup>−2</sup>, 1 mAh cm<sup>−2</sup>. The PPy/MCC@Zn//Cu battery achieves a remarkable average Coulombic efficiency (CE) of 99.48 % at 2 mA cm<sup>−2</sup>, 2 mAh cm<sup>−2</sup>. The practical full battery, coupled with the I<sub>2</sub>- activated carbon (AC) cathode, also demonstrates stable performance over 4000 cycles.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"421 ","pages":"Article 116790"},"PeriodicalIF":3.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First-principles study of the deformation and migration mechanisms of Li–La–Ti–O perovskite under uniaxial stress

IF 3 4区材料科学

Solid State Ionics Pub Date : 2025-01-29 DOI: 10.1016/j.ssi.2025.116789

Wakako Araki , Kiminori Saito , Yoshio Arai

{"title":"First-principles study of the deformation and migration mechanisms of Li–La–Ti–O perovskite under uniaxial stress","authors":"Wakako Araki , Kiminori Saito , Yoshio Arai","doi":"10.1016/j.ssi.2025.116789","DOIUrl":"10.1016/j.ssi.2025.116789","url":null,"abstract":"<div><div>We have investigated the deformation of and Li-ion migration in Li–La–Ti–O (LLTiO) under various uniaxial stresses by first-principles calculations. Structural analysis showed after relaxation, LLTiO without stress possesses a distorted lattice with the displacement of Li ion and tilting of the TiO<sub>6</sub> octahedrons. Migration analysis without stress showed that the Li ion can migrate via its equivalent sites with an energy barrier of 0.31–0.37 eV. In addition, the energy becomes high when the Li ion migrates through bottlenecks, and also when the migration is accompanied by significant changes in the tilt angles of the octahedrons. Mechanical and migration analyses under uniaxial stresses along the <em>z</em> axis showed that the tensile stress reduces the lattice distortion, which remarkably affects the Li-ion migration, while the effect of stress on the Li-ion migration varies depending on the path. The current results suggest that an appropriate configuration of the ions and controlling the stress could possibly improve the Li-ion migration in LLTiO, but stress could also have a detrimental effect on the Li-ion migration.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"421 ","pages":"Article 116789"},"PeriodicalIF":3.0,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diffusion behavior of Li ions in crystalline and amorphous Li-Zr-O and Li-Nb-O phases

IF 3 4区材料科学

Solid State Ionics Pub Date : 2025-01-28 DOI: 10.1016/j.ssi.2025.116787

Daniel Mutter , Diego A. Pantano , Christian Elsässer , Daniel F. Urban

{"title":"Diffusion behavior of Li ions in crystalline and amorphous Li-Zr-O and Li-Nb-O phases","authors":"Daniel Mutter , Diego A. Pantano , Christian Elsässer , Daniel F. Urban","doi":"10.1016/j.ssi.2025.116787","DOIUrl":"10.1016/j.ssi.2025.116787","url":null,"abstract":"<div><div>Li containing transition metal oxides are known as good ionic conductors. Performing classical molecular dynamics simulations, the diffusion behavior of Li ions is investigated in crystalline and amorphous phases with the stoichiometries Li<sub>2</sub>ZrO<sub>3</sub> and LiNbO<sub>3</sub>. We first demonstrate the stability of the crystal structures for the used interatomic potential model and then analyze the amorphous phases, which result from melt-and-quench simulations, in terms of radial distribution functions. Diffusivities of Li ions in those systems are obtained from a statistical Arrhenius analysis of mean square displacement curves at different temperatures. The crystalline phase of Li<sub>2</sub>ZrO<sub>3</sub> exhibits two well-defined migration mechanisms: vacancy-mediated migration is dominant below and a site exchange of Li ions above a crossover region between about 1700 and 1800 K. The latter mechanism also prevails in the amorphous phases of Li<sub>2</sub>ZrO<sub>3</sub> with a strongly reduced activation energy, which is due to a smaller equilibrium separation of Li ions as in the crystal structure. This migration mechanism is found in amorphous LiNbO<sub>3</sub>, too.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"421 ","pages":"Article 116787"},"PeriodicalIF":3.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revolutionizing energy: Vanadium pentoxide (V2O5) and molybdenum disulfide (MoS2) composite incorporated with GQDs as a dual-purpose material for supercapacitors and hydrogen evolution

IF 3 4区材料科学

Solid State Ionics Pub Date : 2025-01-27 DOI: 10.1016/j.ssi.2025.116784

Haseebul Hassan , Sidra Mumtaz , M. Waqas Iqbal , Amir Muhammad Afzal , Tahmina Yaseen , Muhammad Arslan Sunny , Saikh Mohammad , Nouf H. Alotaibi , Mumtaz Manzoor

{"title":"Revolutionizing energy: Vanadium pentoxide (V2O5) and molybdenum disulfide (MoS2) composite incorporated with GQDs as a dual-purpose material for supercapacitors and hydrogen evolution","authors":"Haseebul Hassan , Sidra Mumtaz , M. Waqas Iqbal , Amir Muhammad Afzal , Tahmina Yaseen , Muhammad Arslan Sunny , Saikh Mohammad , Nouf H. Alotaibi , Mumtaz Manzoor","doi":"10.1016/j.ssi.2025.116784","DOIUrl":"10.1016/j.ssi.2025.116784","url":null,"abstract":"<div><div>In the pursuit of developing electrode materials with versatile uses, including energy storage as well as facilitating the hydrogen evolution reaction (HER), extensive research efforts have been dedicated to this domain. A novel composite of V<sub>2</sub>O<sub>5</sub>@MoS<sub>2</sub> has been synthesized within this study and employed in asymmetric supercapacitors. The V<sub>2</sub>O<sub>5</sub>@MoS<sub>2</sub> electrode demonstrated a remarkable <span><math><mi>Cs</mi></math></span> of 1735C/g at a current density of 2.0 A/g through a comprehensive three-cell investigation. Remarkably, substantial specific surface area of 79.32 m<sup>2</sup>/g, was detected, ascertained through BET measurement, significantly augmenting its electrochemical performance. Showcasing specific charge capacity (Qs) of 312C/g, furthermore, the V<sub>2</sub>O<sub>5</sub>@MoS<sub>2</sub> composite was utilized in constructing the supercapattery device. Impressively, the device V<sub>2</sub>O<sub>5</sub>@MoS<sub>2</sub>//AC delivered 57 Wh/kg energy at 1050 W/kg power density. Remarkably, attesting to its exceptional cyclic stability, the V<sub>2</sub>O<sub>5</sub>@MoS<sub>2</sub> device retained 95 % of its initial capacity, after undergoing 12,000 charge-discharge cycles. Moreover, the V<sub>2</sub>O<sub>5</sub>@MoS<sub>2</sub> composite demonstrated the lowest overpotential compared to 102 mV composites evaluated in a hydrogen evolution reaction (HER). This underscores the outstanding catalytic activity of the V<sub>2</sub>O<sub>5</sub>@MoS<sub>2</sub> electrode for HER applications, further validating its potential for utilization in energy storage devices.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"421 ","pages":"Article 116784"},"PeriodicalIF":3.0,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flexible piezoresistive sensors with high sensitivity and ultra-wide pressure range based on alkalized MXene

IF 3 4区材料科学

Solid State Ionics Pub Date : 2025-01-01 DOI: 10.1016/j.ssi.2024.116746

Shuo Yan , Xiaopeng Li , Shifeng Wang , Xing Liu , Xianjin Hu , Mengyu Liang , Ting-Ting Li , Jie Chen

{"title":"Flexible piezoresistive sensors with high sensitivity and ultra-wide pressure range based on alkalized MXene","authors":"Shuo Yan , Xiaopeng Li , Shifeng Wang , Xing Liu , Xianjin Hu , Mengyu Liang , Ting-Ting Li , Jie Chen","doi":"10.1016/j.ssi.2024.116746","DOIUrl":"10.1016/j.ssi.2024.116746","url":null,"abstract":"<div><div>Flexible pressure sensors, characterized by the high sensitivity and broad detection range, have gathered significant interest for applications in wearable electronics and human-machine interfaces. Despite their potential, the development of such sensors remains a formidable challenge. In this study, we report the fabrication of a flexible, highly sensitive piezoresistive sensor featuring a pleated architecture. This sensor was crafted from thermoplastic polyurethane (TPU) as the base material and a spun film serving as the flexible substrate, utilizing an electrospinning technique. The integration of MXene, which was subjected to structural optimization via alkaline treatment with sodium hydroxide (NaOH), was achieved through an impregnation and coating process onto the TPU film. The resulting MXene-composite sensor exhibits remarkable sensitivity (2.88 kP<sup>−1</sup>), an extensive detection range (up to 300 kPa), rapid response time (100 ms), and superior stability over more than 5000 cycles. The sensor's versatility is demonstrated through its successful deployment in capturing a variety of physiological signals from the human body, such as pulse, respiration, and swallowing, as well as in monitoring full-body motion in real-time, including movements of the fingers, wrist, and sole of the foot. Furthermore, its application as a component of flexible electronic skin underscores its immense potential for integration into physiological analysis systems, humanoid robotics, and biomedical prosthetics.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"419 ","pages":"Article 116746"},"PeriodicalIF":3.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring a metal coated by M-graphene as an encouraging anode electrode material for sodium-ion batteries using DFT calculations

IF 3 4区材料科学

Solid State Ionics Pub Date : 2025-01-01 DOI: 10.1016/j.ssi.2024.116762

Shaymaa Abed Hussein , Abdulkhalaq Fawzy Hamood , Vicky Jain , Pawan Sharma , Abhishek Kumar , K. Phaninder Vinay , Uday Raheja , Yazen M. Alawaideh , Azath Mubarakali

{"title":"Exploring a metal coated by M-graphene as an encouraging anode electrode material for sodium-ion batteries using DFT calculations","authors":"Shaymaa Abed Hussein , Abdulkhalaq Fawzy Hamood , Vicky Jain , Pawan Sharma , Abhishek Kumar , K. Phaninder Vinay , Uday Raheja , Yazen M. Alawaideh , Azath Mubarakali","doi":"10.1016/j.ssi.2024.116762","DOIUrl":"10.1016/j.ssi.2024.116762","url":null,"abstract":"<div><div>In the pursuit of advancing sodium-ion batteries (SIBs) technology as high-potential alternatives for lithium-ion batteries (LIBs), we were investigated the potential of M-graphene as an encouraging anode material using DFT-D calculations. The density of states (DOS) plot and band structure reveal that M-graphene with a zero-band gap indicates its metallic nature which is beneficial for electrical conductivity in redox reactions. The migration of sodium ions on the M-graphene surface was explored along two plausible paths. The calculated diffusion energy barrier indicated a remarkably low value of 0.29 and 0.27 eV, suggesting efficient ion migration. This kinetic favorability is critical for high-rate battery applications. Cohesive energy calculations were illustrated the thermodynamic stability of the adsorbed structure in different sodium concentrations. Ab initio molecular dynamics (AIMD) calculations demonstrated the thermal stability of fully adsorbed structure at 300 K. Furthermore, M-graphene demonstrates an impressive theoretical capacity of 1395 mAh g<sup>−1</sup>, which is significantly higher than traditional anode materials. The average open-circuit voltage (OCV) is determined to be 0.79 V which is in the SIBs potential range. We found that although the induction of a defect in the structure does not change the metallic properties, it affects the adsorption behavior of M-graphene. These findings underscore M-graphene's substantial capacity and low energy barrier for ion diffusion, marking it as a viable candidate for high-performance SIBs.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"419 ","pages":"Article 116762"},"PeriodicalIF":3.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and electrical conductivity of core-shell structured Ce0.8Sm0.2O1.90-δ@xBaCe0.8Sm0.2O2.95-δ (x = 0, 0.5, 1, 1.5) ceramics

IF 3 4区材料科学

Solid State Ionics Pub Date : 2025-01-01 DOI: 10.1016/j.ssi.2024.116756

Xing Lu , Bin Meng , Xinyu Ping , Congcong Fang , Ziran Chai , Zhenteng Wang , Weixin Zeng

{"title":"Preparation and electrical conductivity of core-shell structured Ce0.8Sm0.2O1.90-δ@xBaCe0.8Sm0.2O2.95-δ (x = 0, 0.5, 1, 1.5) ceramics","authors":"Xing Lu , Bin Meng , Xinyu Ping , Congcong Fang , Ziran Chai , Zhenteng Wang , Weixin Zeng","doi":"10.1016/j.ssi.2024.116756","DOIUrl":"10.1016/j.ssi.2024.116756","url":null,"abstract":"<div><div>Core-shell structured powders of Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.90-δ</sub>(SDC)@xBaCe<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>2.95-δ</sub>(BCS) (x = 0, 0.5, 1, 1.5) were synthesized by a two-step co-precipitation method and then sintered to prepare the corresponding SDC@xBCS (x = 0, 0.5, 1, 1.5) ceramics. The XRD detection combined with SEM and TEM analysis confirms that the powders and ceramics are only composed of SDC and BCS phases, and no other phases are detected. The average diameter of the spherical core-shell structured SDC@xBCS powders is in 20–60 nm. A thin layer of BCS is coated on the surface of SDC in the synthesized SDC@BCS nanopowders, and a core-shell structure forms in the SDC@BCS composite ceramics. With the increase of the ratio of BCS:SDC from 1 to 1.5, the sample is more difficult to be densified. For x = 1, the sample of SDC@BCS achieves the highest electrical conductivity in four samples (x = 0, 0.5, 1, 1.5). At the test temperature of 600 °C, the electrical conductivity of the core-shell structured SDC@BCS ceramic (1:1) is higher than that of the common uniformly-mixed SDC-BCS samples, i.e., 1.545 × 10<sup>−2</sup> S/cm and 0.685 × 10<sup>−2</sup> S/cm in air and 10 %H<sub>2</sub>–90 %N<sub>2</sub> atmosphere, respectively. At the same time, the specific grain boundary electrical conductivity of the core-shell structured SDC@BCS ceramics is also higher than that of uniformly mixed SDC-BCS composite ceramics. The construction of a core-shell structure can contribute to improving the electrical conductivity of the SDC-BCS composite ceramics.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"419 ","pages":"Article 116756"},"PeriodicalIF":3.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-performance anion exchange membranes based on semi-interpenetrating blends of polyethylene terephthalate and quaternized chitosan

IF 3 4区材料科学

Solid State Ionics Pub Date : 2025-01-01 DOI: 10.1016/j.ssi.2024.116761

Yaling Wen , Shuang Li , Mingchao Gang , Lulu Wang , Qiang Wang , Fan Zhang , Yang Zhang , Jilin Wang

{"title":"High-performance anion exchange membranes based on semi-interpenetrating blends of polyethylene terephthalate and quaternized chitosan","authors":"Yaling Wen , Shuang Li , Mingchao Gang , Lulu Wang , Qiang Wang , Fan Zhang , Yang Zhang , Jilin Wang","doi":"10.1016/j.ssi.2024.116761","DOIUrl":"10.1016/j.ssi.2024.116761","url":null,"abstract":"<div><div>High ionic conductivity and long-term durability of anion exchange membranes (AEMs) are indispensable to facilitate the commercial application of anion-exchange membrane fuel cells (AEMFCs). Herein, novel high performance AEMs are synthesized for the first time. Specifically, quaternized chitosan (QCS) with high ion content without chloromethylation is selected as the ion conduction phase, due to its low cost and biodegradability. Polyethylene terephthalate (PET) with high film-forming ability, excellent strength, dimensional stability, and physical properties is selected as the mechanical support material. Moreover, semi-interpenetrating polymer networks (s-IPNs) architecture is formed by cross-linking QCS with glutaraldehyde (GA) to enhance the compatibility and optimize the advantages of each polymer matrix. Consequently, the homogeneous semi-IPN AEMs combines the benefits of ionic network and rigid linear polymer, achieving high performance, surpassing the simple blend AEM. The PHM-4 exhibits excellent mechanical properties (24.5 MPa, 17.94 %), outstanding ionic conductivity (89.64 mS/cm, 80 °C), as well as excellent alkaline stability (91.5 % retaining of initial conductivity after immersing in 6 M NaOH at 80 °C for 500 h). Furthermore, the single fuel cell based on PHM-4 displays high performance of 305 mW/cm<sup>2</sup> (80 °C). This study proposes a new strategy for the synthesis of high-performance semi-IPN AEMs, further enhancing the application value of QCS based AEMs in fuel cells.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"419 ","pages":"Article 116761"},"PeriodicalIF":3.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physicochemical properties of short-side-chain perfluorosulfonic acid membranes at elevated temperatures

IF 3 4区材料科学

Solid State Ionics Pub Date : 2025-01-01 DOI: 10.1016/j.ssi.2024.116747

Harilal, Yi-Lin Kao, Chao Pan, David Aili, Qingfeng Li

{"title":"Physicochemical properties of short-side-chain perfluorosulfonic acid membranes at elevated temperatures","authors":"Harilal, Yi-Lin Kao, Chao Pan, David Aili, Qingfeng Li","doi":"10.1016/j.ssi.2024.116747","DOIUrl":"10.1016/j.ssi.2024.116747","url":null,"abstract":"<div><div>Water and CO<sub>2</sub> electrolysis at elevated temperatures in cells equipped with short-side-chain perfluorosulfonic acid membranes could potentially allow for new approaches to tuning catalyst kinetics and selectivity, but the membrane characteristics under such conditions remains to be described. In this work, a short-side-chain perfluorosulfonic acid membrane (Aquivion) is characterized at temperatures up to 150 °C and high humidification levels with respect to tensile behavior, ionic conductivity, permeability of hydrogen and methanol, and stability. The membrane is found to retain mechanical robustness at temperatures up to at least 130 °C while dehydration at temperatures above 100 °C under ambient pressure results in a significant conductivity decay. The densification of the membrane matrix at temperatures above the boiling point of water under varied pressures leads to reduced hydrogen and methanol permeability. Pressurization up to 5 bars effectively mitigates the conductivity decay due to the presence of liquid water but also results in increased permeability. The membrane stability test, as characterized by hydrogen crossover measurements, shows that humidification is a harsher stressor than temperature in the studied range.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"419 ","pages":"Article 116747"},"PeriodicalIF":3.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0