JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Jun Deng,Yanhong Song,Shuai Liu
Phakic intraocular lenses (pIOLs) are an increasingly popular treatment for refractive errors, particularly myopia. However, there are limited materials available for pIOLs, and each has its issues such as non-foldability, low refractive index (RI), glistenings, or bioadhesion. In response to existing challenges, a series of poly(styrene-block-isobutylene-block-styrene) (SIBS) block copolymers are evaluated for pIOL application, and methacryloyloxyethyl phosphorylcholine (MPC) is grafted onto SIBS to further improve its anti-adhesive properties in this work. By controlling the styrene content, SIBS exhibits a tunable high RI of 1.521–1.532. Meanwhile, the SIBS materials are foldable and possess a glass transition temperature ( T g ) below −60°C. Furthermore, SIBS has a very low average glistening density below 20 MV/mm 2 . Given the hydrophobic nature of the materials, MPC is grafted onto the surface of SIBS, resulting in a notable decrease in water contact angle, protein adsorption, and relative bacterial adsorption from 102.7° ± 2.3°, 12.13 ± 1.82 μg/cm 2 , and 1.00 ± 0.33 to 78.2° ± 0.2°, 3.16 ± 0.93 μg/cm 2 , and 0.02 ± 0.01, respectively. Cytotoxicity and in vivo subcutaneous implantation experiments demonstrate that both SIBS and its modified counterpart are noncytotoxic and biosafe. Collectively, SIBS-based materials represent a promising option for the next generation of pIOLs.
研究领域:
眼科医学
·
生物材料科学
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2023
·
IF 2.8
Wang Peng,Zhu Xinxin,Ding Yihong,Shao Lixiong,Jin Huile,Zhang Lichen,Wang Xintong,Zeng Tianbiao
As a new type of negative electrode material for SIBs, (iron germanium sulfide) Fe 2 GeS 4 is considered a highly promising negative electrode material for SIBs owing to its high theoretical capacity, fast Na + diffusion kinetics, and good thermal stability. In practical applications, it is crucial to synthesize the high-capacity/reversible nanostructured Fe 2 GeS 4 -based negative electrodes through an easily executable method. In this study, a two-step synthesis method to prepare nanostructured Fe 2 GeS 4 anchored on graphite (Fe 2 GeS 4 /G-15%) was employed: the commercial FeS, S, and Ge powders were mixed and heated, and then graphite was added for ball milling. X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations revealed that there is a strong interaction between the nanostructured Fe 2 GeS 4 powder and the exfoliated graphite, forming a highly stable nanocomposite material, which is beneficial for improving the reversible charge-discharge performance of the material. When used as a negative electrode material for SIBs, the prepared Fe 2 GeS 4 /G-15% exhibited a capacity of 665.5 mAh g −1 during the second cycle at 0.1 A g −1 and could maintain a capacity of 519 mAh g −1 even after the 60th cycle. Considering the simple synthesis process employed in this study, it provides a reference for the production of high-performance Fe 2 GeS 4 -based negative electrode materials for SIBs. Graphical abstract
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2023
·Vol. 20
·期 20
·2309809
·
IF 13.3
Tong Wang,Lingling Liu,Yanwei Wei,Yihan Gao,Shun Wang,Deqi Jia,Wei Zhang,Jingquan Sha
The microstructure of hard carbons (HCs) including interlayer distance and lateral ab direction and pore size distribution plays a key role in regulating the sodium ions storage performance. Herein, by employing the gelatinous agar as a model precursor, series P-doping HCs (P-HC- x , x = 1, 2, 3, 4) are facilely prepared in batches via controllably regulating its crosslinking state by phytic acid (PA) at a low carbonization temperature of 750 °C, in which PA plays three roles (acid, flame retardant, and P-doping precursor) in promoting the final structure of P-HC-x. Among those, the puparium like P-HC-2 with expanded carbon interlayer distance of 3.91 Å and shortened lateral ab direction of 9.4 nm delivers a high reversible capacity of 394 mAh g −1 at 0.1 A g −1 with high increased slope capacity of 363 mAh g −1 as well as an ultrafast charge-discharge feature and a superlong cycle life. Pairing with the Na 3 V 2 (PO 4 ) 3 cathode, the fabricated sodium-ion full cells exhibit the 132 mAh g −1 reversible capacity at 0.1 A g −1 , and 86% capacity retention after 100 cycles. This work successfully develops slope-dominated high-performance carbon anode, which will provide new insights for the microstructure regulation and design of other precursor-derivedHCs.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
电池技术
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Yongxiang Yuan,Jianglong Kang,Shengping Jin,Dengdeng Ai,Wenying Zhao,Jiatai Wang,Yulong Kang,Xiaoyi Hou
P2-type layered Mn-based excess metal oxide cathode is considered to be one of the most promising cathode materials for sodium-ion batteries (SIBs) due to the open sodium ion diffusion channels and low diffusion energy barrier. However, the deep charge/discharge process of the P2-type layered oxide cathodes at high potential leads to the displacement and irreversible alterations of the crystal structure, thereby resulting in poor rate capability and deteriorated capacity retention. The charge/discharge curves are smoothed after Fe doping. The specific discharge capacity, rate capability and cycling stability of the samples are significantly improved by Fe-doping. When x = 0.03, the obtained Na 0.6 Mn 1-x Fe x O 2 cathode delivers excellent electrochemical performance. The initial discharge specific capacity of the cathode is 193.14 mAh g −1 at 0.1C, and can remain 91.05 mAh g −1 after 100 cycles. The capacity retention rate is as high as 86.02 % when the current density turn back to 0.1C after cycles at different current densities. The present work may propose a strategy to improve P2-type layered Mn-based cathode materials for sodium-ion batteries by a doping method, which will be of great significance for the commercialization of sodium-ion batteries.
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2021
·Vol. 11
·期 60
·37700-37707
·
IF 3.361
Chao Li,Binhui Luo,Youman Zhao,Yongsheng Chen,Hua Yang,Jingang Song,Lili Zhao,Xiaobo Fu
The stable storage of sodium ions always presents some difficulties for sodium-based dual-ion batteries (S-DIBs), such as the irreversibility of guest-storage and kinetic hindrance in the anode. Based on the low strain volume and stable phase structure, herein, lithium titanate (LTO, Li4Ti5O12) was developed to store sodium ions between the working potential (∼0.8 V), which expands the lower plateau over than that of lithium ion storage (∼1.55 V) to obtain a high energy density of full batteries. The spinel lithium titanate shows negligible volume change and extremely stable structure under Na+-storage, which completely overcomes the shortage problems of the Na+-host. Additionally, by the detection of the transfer state of anions and cations in dual-ion batteries, the diffusion coefficient of the sodium ion in the LTO electrode is higher than that of the cathode, which shows that the transport process of sodium ions can meet the kinetic demands of full batteries. Such S-DIBs exhibit a large working voltage of 2.0–4.6 V and stable electrochemical performance over 1280 cycles, which is superior to conventional sodium-based systems, and further exhibit many advantages such as high energy density, environmental friendliness, and low cost.
研究领域:
电化学
·
储能
·
材料科学
·
电池技术
✓ 已验证
DOI
高影响因子
Metals
·
2024
·Vol. 14
·期 5
·595
·
IF 2.6
Huabin Kong,Yihan Wen,Siying Chen,Xiyao Chen,Runzhi Chen,Jiamou Yan,Nianjie Mao
Molybdenum diselenide (MoSe2) is a promising anode for alkali-ion storage due to its intrinsic advantages. However, MoSe2still encounters the issues of structural instability and poor rate performance caused by drastic volume change and sluggish reaction kinetics. Reasonable design of electrode structure is crucial for achieving superior electrochemical performance. Herein, a novel hierarchical structure coupled with 1D/1D subunits is elaborately designed and constructed, in which the MoSe2/CoSe2heterostructure is the “trunk” and the N-doped carbon nanotubes are the “branches” (MoSe2/CoSe2/NCNTs). Benefiting from the properties endowed by unique configurations, MoSe2/CoSe2/NCNTs electrodes manifest faster reaction kinetics and better structure durability. Evaluated as an anode for LIBs and SIBs, MoSe2/CoSe2/NCNTs deliver high reversible capacity, superior rate capability (452 at 10 A g−1in LIBs and 296 at 10 A g−1in SIBs), and prominent cycle life (553 after 2000 cycles at 5 A g−1in LIBs and 310 after 2000 cycles at 5 A g−1in SIBs). Such design conception can also provide guidance for the development of other high-performance electrodes.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2023
·
IF 3.9
Jia Wen,Rong Jiang,Junyuan Huang,Yuan Xie,Le Ma,Xinyu Li,Yang Ren,Zhu Liu,Bowen Xiao,Xiaowei Zhou
In this study, hollow and hierarchical CuO micro–nano cubes wrapped by reduced graphene oxide (H-CuO MNCs@rGO) were designed and successfully fabricated via a novel three-step wet-chemical method. Benefiting from its unique hollow and hierarchical micro–nano structures, H-CuO MNCs@rGO exhibited significantly enhanced electrochemical Na+ storage performance when utilized as anode material for sodium-ion batteries (SIBs). Specifically, H-CuO MNCs@rGO demonstrated a specific capacity of 380.9 mAh g–1 in the initial reversible cycle and a capacity retention of 218.9 mAh g–1 after 150 cycles at a current density of 300 mA g–1. Furthermore, through the dominant pseudocapacitive behavior, an optimized rate capability of 221.2 mAh g–1 at 800 mA g–1 can be obtained for H-CuO MNCs@rGO. The comprehensive Na+ storage properties of H-CuO MNCs@rGO obviously exceeded those of hollow CuO cubes (H-CuO MNCs) and bulk CuO anodes. Such enhanced Na+ storage performances of H-CuO MNCs@rGO can be attributed to its reasonable hollow and hierarchical micro–nano structures, which provide abundant redox active sites, shorten Na+ migration pathway, buffer volume expansion, and improve electronic/ionic conductivity during sodiation/desodiation process. Our strategy provides a facile and innovative approach for the design of CuO with rational micro–nano structure as a high-performance anode for SIBs, which would also be a guiding way for tailoring transition metal oxides in other scalable and functional applications.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2024
·Vol. 31
·期 9
·1-13
·
IF 2.6
Chen Minhan,Jin Yushun,Liu Ruofan,Zhang Hao,Song Yanhong,Ding Wei,Li Jiwei,Wu Yibo
Styrene-Isobutylene-Styrene (SIBS) is a high-performance biocompatible elastomeric material. However, its low surface energy and hydrophobic nature limit its widespread application in the field of implantable materials within the human body. In this study, UV-initiated polymerization was employed to prepare SIBS-acrylic acid surface-grafted co-polymer. Subsequently, collagen protein (Coll) surface modification of SIBS was achieved through a coupling reaction with acrylic acid, resulting in the production of Collagen Surface-Modified SIBS, denoted as SIBS-AA-Coll. Characterization was carried out using techniques such as infrared spectroscopy, thermal analysis, scanning electron microscopy, X-ray photoelectron spectroscopy (XPS), and water contact angle measurements. The results demonstrated that, with a UV exposure time of 4 min and a n BP :n AA ratio of 15:100, the grafting ratio reached 9.4%, significantly improving the hydrophilicity of the SIBS surface. In vitro cytotoxicity tests and in vivo animal implantation experiments indicated that Collagen Surface-Modified SIBS exhibited excellent biocompatibility.
研究领域:
生物材料
·
生物医学工程
·
表面化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ChemSusChem
·
2019
·Vol. 12
·期 18
·4160-4164
·
IF 7.804
Yan Zhang,Huinan Guo,Weiqin Li,Yike Huang,Zeting Zhang,Guishu Liu,Yijing Wang
Graphical Two in one : A composite of a calcium organic salt, Cabpdc (bpdc=4,4′-biphenyldicarboxylate) and reduced graphene oxide (rGO) improves two issues related to organic electrodes: high solubility in organic electrolytes and low electronic conductivity. The Cabpdc/rGO composite displays competitive cycle and rate performances as an anode for sodium-ion batteries. Organic electrodes hold great promise for sustainable electrodes in sodium-ion batteries (SIBs) owing to their easy availability from biomass. However, traditional organic electrodes suffer from two inherent problems, high solubility in organic electrolytes and low electronic conductivity. Here, a calcium organic salt, Cabpdc (bpdc=4,4′-biphenyldicarboxylate) was designed and formed into a composite with reduced graphene oxide (rGO) to improve these two problems by a “two-in-one” approach. As expected, the Cabpdc/rGO composite displayed competitive cycle and rate performances as an anode for SIBs. Additionally, all-organic sodium-ion full cells were successfully fabricated combining this anode with a commercial organic cathode, promising applications for sustainable SIBs.
研究领域:
材料科学
·
电化学
·
能源存储
·
可持续技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemSusChem
·
2018
·Vol. 11
·期 19
·3376-3381
·
IF 7.411
Liubin Wang,Youxuan Ni,Kaixiang Lei,Huanhuan Dong,Sen Tian,Fujun Li
Graphical Give us a tune : 3D porous Sn on Cu foil (Sn/Cu) is prepared by tuning the redox potential of Cu + /Cu with a ligand of thiourea to trigger the replacement reaction between Cu and Sn 2+ . The resultant full battery of Sn/Cu//Na 3 (VO 0.5 ) 2 (PO 4 ) 3 F 2 delivers a high energy density of 311.7 Wh kg −1 with a long lifespan of 200 cycles. Sodium-ion batteries (SIBs) have attracted significant research interest for large-scale electric energy storage. However, anodes with good rate capability and long cycle life are still lacking. Here, a three-dimensional (3D) porous Sn on Cu foil (Sn/Cu) is prepared by tuning the redox potential of Cu + /Cu with a ligand of thiourea to trigger the replacement reaction between Cu and Sn 2+ . The as-synthesized Sn/Cu is used as an integrated porous electrode and can be directly applied as an advanced freestanding electrode for SIBs. Such a unique structure can efficiently relieve the strain caused by sodiation/desodiation and benefit penetration of the electrolyte and diffusion of Na + . This is a merit of its large reversible capacity of about 700 mAh g −1 at 2500 mA g −1 for 400 cycles. A full battery of Sn/Cu//Na 3 (VO 0.5 ) 2 (PO 4 ) 3 F 2 is constructed, which presents a high energy density of 311.7 Wh kg −1 and long lifespan of 200 cycles. This facile synthesis strategy and good electrochemical performance will encourage more investigations into structure design of functional materials.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small
·
2023
·Vol. 19
·期 38
·2302831
·
IF 13.3
Tianhao Yao,Hongkang Wang,Xin Ji,Deyu Wang,Qingmiao Zhang,Lingjie Meng,Jian-Wen Shi,Xiaogang Han,Yonghong Cheng
Titanium dioxide (TiO 2 ) is a promising anode material for sodium–ion batteries (SIBs), which suffer from the intrinsic sluggish ion transferability and poor conductivity. To overcome these drawbacks, a facile strategy is developed to synergistically engineer the lattice defects (i.e., heteroatom doping and oxygen vacancy generation) and the fine microstructure (i.e., carbon hybridization and porous structure) of TiO 2 -based anode, which efficiently enhances the sodium storage performance. Herein, it is successfully realized that the Si-doping into the MIL-125 metal-organic framework structure, which can be easily converted to SiO 2 /TiO 2–x @C nanotablets by annealing under inert atmosphere. After NaOH etching SiO 2 /TiO 2–x @C which contains unbonded SiO 2 and chemically bonded Si O Ti, thus the lattice Si-doped TiO 2–x @C (Si-TiO 2–x @C) nanotablets with rich Ti 3+ /oxygen vacancies and abundant inner pores are developed. When examined as an anode for SIB, the Si-TiO 2–x @C exhibits a high sodium storage capacity (285 mAh g −1 at 0.2 A g −1 ), excellent long-term cycling, and high-rate performances (190 mAh g −1 at 2 A g −1 after 2500 cycles with 95.1% capacity retention). Theoretical calculations indicate that the rich Ti 3+ /oxygen vacancies and Si-doping synergistically contribute to a narrowed bandgap and lower sodiation barrier, which thus lead to fast electron/ion transfer coefficients and the predominant pseudocapacitive sodium storage behavior.
研究领域:
材料科学
·
能量存储
·
纳米技术
·
电池技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）