JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Haonan Yue,Mengwei Han,Xinni Li,Ting Song,Yong Pei,Xianyou Wang,Xiongwei Wu,Tengfei Duan,Bei Long
The development of a low-cost, high-capacity, and insertion-type anode is key for promoting “rocking chair” zinc-ion batteries. Herein, commercial Bi 2 O 3 (BiO) particles are transformed into Bi 2 O 2 Se@Bi 4 O 8 Se (BiOSe) nanosheets through a simple selenylation process. The change in morphology from commercial BiO particle to BiOSe nanosheet leads to an increased specific surface area of the material. The enhanced electronic/ionic conductivity results in its excellent electrochemical kinetics. Ex situ XRD and XPS tests prove the intercalation-type mechanism of BiO and BiOSe as well as the superior electrochemical reversibility of BiOSe compared to BiO. Furthermore, the H + /Zn 2+ co-insertion mechanism of BiOSe is revealed. This makes BiOSe to have low discharge plateaus of 0.38/0.68 V, a high reversible capacity of 182 mA h g −1 at 0.1 A g −1 , and a long cyclic life of 500 cycles at 1 A g −1 . Besides, the BiOSe//MnO 2 “rocking chair” zinc-ion battery offers a high capacity of ≈90 mA h g −1 at 0.2 A g −1 . This work provides a reference for turning commercial material into high-performance anode for “rocking chair” zinc-ion batteries.
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
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Xiaozhong Zhou,Zhaoyi Qi,Yuyuan Jiang,Pengfei Yan,Juanxia Ding,Haiyan Wang,Hongkai Lu,Dongxu Liu,Kaifa Dong,Yougen Tang,Dongfei Sun,Ziqiang Lei
SiO x is regarded as a promising anode material for the next-generation lithium-ion batteries with high energy density. However, the reduplicative volume changes during cycling cause the pulverizations of Si, leading to decreased utilization of active Si component and poor cycling performance. Herein, a facile and scalable Fe-Cr decorating strategy is reported to boost the lithium storage of SiO x anode. Our comprehensive characterizations indicate that there are strong interactions between Fe-Cr and SiO x during a facile ball milling process. After cycling, Fe-Cr nanoparticles are dispersed in the in-situ formed lithium silicates and Li 2 O matrix, which can maintain superior conductivity of lithium ion and electron for the active components through point-to-point connections. This unique structure boosts the electrochemical de-alloying process of the low-valent Li x Si (0 ≤ x ≤ 2), and increases effective utilization of the active Si component during cycling, resulting in improvement of reversible capacity and cycling stability. This bm SiO x -FeCr electrode can deliver high reversible specific capacity (1370 m Ah g −1 at 200 mA g −1 ), good rate capability (653.8 m Ah g −1 at 2000 mA g −1 ), and superior cycling stability. This work provides a promising route for improving the utilization of active Si component and the structural stability of SiO x -based anodes.
研究领域:
材料科学
·
电化学
·
纳米材料
·
能源存储
·
电池技术
·
固态物理
✓ 已验证
DOI
高影响因子
SOLID STATE IONICS
·
2016
·
IF 2.38
Yu-Jiao Zhong,Zhen Liu,Xiang Zheng,Shi-Liang Luo,Ning-Yi Yuan,Jian-Ning Ding
A Li ion conductive gel-binder, Li ion-doped 1,3-dichloro-2-propanol-sulfur-poly(ethylene glycol) methyl ether binder, was employed on the S cathode to enhance the rate performance of the Li/S battery. The reversible capacity of such batteries is 690 mAh g − 1 at a 3 C-rate after 27 cycles, and it reverts to 1020 mAh g − 1 at 0.2 C-rate, which is close to the initial value of 1210 mAh g − 1 . Besides, at 0.5 C-rate, the battery with this gel-binder shows a high initial specific capacity of 976 mAh g − 1 and retains a capacity of 560 mAh g − 1 for more than first 500 cycles.
研究领域:
电化学
·
能源材料
·
纳米材料
·
电池技术
·
电极工程
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2022
·
IF 9.794
Xue Mu,Chuankai Fu,Renlong Li,Chunyu Du,Yunzhi Gao,Geping Yin,Pengjian Zuo
Silicon oxide (SiO x ), consisting of nanosized Si crystallites and oxide matrix (SiO y , y near 2), is regarded as one of the most promising anode materials for next-generation high energy density lithium-ion batteries (LIBs). Commonly, modulating oxygen content and surface chemistry are favorable to the lithium ions storage performances of SiO x anode. Here, an AlCl 3 –MgSO 4 assisted low-temperature (250 °C) etching technique is adopted to modify the commercial micron-sized SiO x anode, this novel modification method tunes the O/Si ratio on the surface of SiO x . Impressively, the modified SiO x anode exhibits a high reversible capacity of 480 mAh g −1 at 1A g −1 after 200 cycles and good rate capability of above 110 mAh g −1 at 10 A g −1 . This work provides a simple and feasible modification strategy to the development of high performance SiO x anode.
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 POLYMER SCIENCE PART A-POLYMER CHEMISTRY
·
2019
·Vol. 57
·期 22
·2228-2234
·
IF 2.591
Changhong Lin,Dekun Sheng,Xiangdong Liu,Shaobin Xu,Fance Ji,Li Dong,Yan Zhou,Yuming Yang
A dual crosslinked self-healing polyurethane was prepared with robust mechanical properties through the dynamic reversible pyridine-Fe 3+ coordination bonds and Diels–Alder (DA) covalent bonds dual crosslinking strategy. Moreover, the mechanical properties and self-healing ability of polyurethane can be tuned readily by different ratio of the coordination bonds and DA bonds. Under external load, the coordination bonds serve as sacrificial bonds are broken to dissipate energy, the DA bonds can keep the shape of sample. With the coordination bonds participation, the damaged samples can be healed under moderate heating treatment or with the aid of FeCl 3 solution. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019 , 57, 2228–2234
研究领域:
高分子化学
·
材料科学
·
自修复材料
·
功能高分子
·
智能材料
✓ 已验证
DOI
高影响因子
BIOINORGANIC CHEMISTRY AND APPLICATIONS
·
2016
·Vol. 2016
·期 1
·3585781
·
IF 1.488
Xincun Zhang,Fan Yue,Hui Li,Yan Huang,Yi Zhang,Hongmei Wen,Jide Wang
We systematically investigated the reversibility, time lapse, and oxygenation-deoxygenation properties of 15 natural α -amino acid–Co(II) complexes through UV-vis spectrophotometer, polarographic oxygen electrode, and DFT calculations, respectively, to explore the relationship between the coordinating structure and reversible oxygenation of α -amino acid–Co(II) complexes. Results revealed that the α -amino acid structure plays a key role in the reversible oxygenation properties of these complexes. The specific configuration of the α -amino acid group affects the electron of Co(II) transfer to the π ⁎ orbit of O 2 ; this phenomenon also favors the reversible formation and dissociation of Co–O 2 bond when O 2 coordinates with Co(II) complexes. Therefore, the co-coordination of amino and carboxyl groups is a determinant of Co complexes to absorb O 2 reversibly. The group adjacent to the α -amino acid unit evidently influences the dioxygen affinity and antioxidation ability of the complexes. The presence of amino (or imino) and hydroxy groups adjacent to the α -amino acid group increases the oxygenation-deoxygenation rate and the number of reversible cycles. Our findings demonstrate a new mechanism to develop reversible oxygenation complexes and to reveal the oxygenation of oxygen carriers.
研究领域:
无机生物化学
·
金属蛋白化学
·
分子生物学
·
配位化学
·
氧化还原生物学
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2011
·Vol. 36
·期 23
·15266-15272
·
IF 4.057
Pei Pei Yuan,Bin Hong Liu,Zhou Peng Li
A comparative study was performed on four LiBH 4 -based hydrogen storage composites 2LiBH 4 + MgX 2 and 6LiBH 4 + CaX 2 (X = H and F). The composites with fluorides and those with corresponding hydrides exhibited similar hydrogen storage properties. The dehydrogenation of 2LiBH 4 + MgF 2 demonstrated a strong dependence on the hydrogen back pressure , similar to that of 2LiBH 4 + MgH 2 . The reversible hydrogen storage of 2LiBH 4 + MgF 2 was achieved under a back pressure of 5 bar at 450 °C. Dehydrogenation under lower H 2 pressures resulted in the production of Mg and thus a partial reversibility. In contrast, both 6LiBH 4 + CaH 2 and 6LiBH 4 + CaF 2 revealed reversible hydrogen storage properties regardless of the hydrogen back pressure. The structural difference between MgB 2 and CaB 6 may account for the observed differences in hydrogen storage properties of the Mg- and Ca-containing LiBH 4 reactive composites.
研究领域:
材料科学
·
能源化学
·
固态储氢
·
无机化学
·
功能材料
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2018
·Vol. 43
·期 1
·103-110
·
IF 3.201
Funian Mo,Jianfeng Ban,Lulu Pan,Bo Shi,Shaorong Lu
In this study, a novel series of supramolecular liquid crystalline (LC) polyurethane composites, named SMPU–#HOBA (# represents the molar ratio of HOBA/BINA), were successfully prepared by incorporating hexadecyloxybenzoic acid (HOBA) into pyridine-containing polyurethane (PU). The effect of HOBA on the structure, morphology, and properties has been carefully investigated. The results demonstrate that the obtained SMPU–#HOBA composites not only maintained the LC property of the HOBA mesogen, but also enhanced the intrinsic crystallization of the soft segment phase. Thus, the composites showed an excellent multi-shape memory property with two crystalline temperatures. Moreover, self-gripping was demonstrated revealing reversible bidirectional shape memory by virtue of molecular flipping and movement of the hard segment domain. These composites display a rare combination of LC properties, multi-shape memory properties, and reversible bidirectional shape memory properties, which makes them ideal for many potential applications in smart temperature sensitive devices.
研究领域:
高分子科学
·
材料科学
·
智能材料
·
软物质物理
·
功能高分子
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 31
·18612-18618
·
IF 10.733
Shuo Wang,Xiaofu Xu,Xue Zhang,Chengzhou Xin,Bingqing Xu,Liangliang Li,Yuan-Hua Lin,Yang Shen,Baohua Li,Ce-Wen Nan
All-solid-state lithium-ion batteries (ASSLIBs) owing to their advantage of enhanced safety are considered to be a promising candidate for next-generation energy storage devices. However, the poor cycling performance and low areal capacities of ASSLIBs with S, Li2S or traditional oxide cathodes hinder the development of high-energy-density ASSLIBs. Herein, a Li6PS5Cl solid-state electrolyte has been systematically investigated for use as a cathode active material in ASSLIBs for the first time. ASSLIBs employing Li6PS5Cl as both the active material and electrolyte with a Li–In alloy anode are fabricated. A Li6PS5Cl-based cell with an active material loading of 3.1 mg cm−2 exhibits a high discharge capacity of around 535 mA h g−1 after 650 cycles at 56 mA g−1 (∼0.1C) at room temperature, which is the highest value among ASSLIBs using sulfide SSEs as active materials and is even comparable with those of cells with S, Li2S or transition metal sulfides as the active material. This superior long-term cycling performance is attributed to the highly reversible electrochemical activity of Li6PS5Cl revealed by ex situ XRD and XPS analyses.
研究领域:
电化学
·
能源材料
·
固态离子学
·
储能技术
·
材料科学
✓ 已验证
DOI
高影响因子
Device
·
2023
·
IF 0
Jian Chen,Keju Ji,Chi Xu,Jiahui Zhao,Tingwei Huo,Yi Song,Stanislav N. Gorb,Yi Long,Zhendong Dai
Adhesive materials have many potential applications for daily life, such as soft robotics, grippers, and wearable devices. However, robust and reversible adhesion under extreme thermal conditions—like ultralow temperature surfaces and conditions with large temperature variations—is a significant challenge and has rarely been studied. Here, we report a new design of a mushroom-shaped adhesive based on materials design and structural microfabrication. The fabricated adhesive possesses one to two orders of higher adhesive strength at −100°C than those recently reported in the literature, with promising reversible adhesion under temperature variations from −100°C to 100°C and on −98.5°C dry-state ice surfaces. We believe this new strategy will have broad potential applications including but not limited to glacier rescue and polar exploration.
研究领域:
材料科学
·
机械工程
·
应用物理
·
机器人学
✓ 已验证
DOI
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2020
·
IF 3.573
Weijun Huang,Jinglin Zhai,Changqi Zhang,Xin Hu,Ning Zhu,Kequan Chen,Kai Guo
Bio-based polyamides (100%) with responsive functionality were designed and synthesized by using biorenewable diamine and dicarboxylate. 1,5-Pentanediamine and dimethyl furan-2,5-dicarboxylate were chosen not only because of the biomass feedstock but also because of the reactivity of the furan rings. Enzymatic process enhanced the sustainability of these 100% bio-based furan-containing polyamides (PA5F). By regulating the temperature, PA5F was cross-linked at a low temperature via the Diels–Alder (DA) reaction and then was de-cross-linked at a high temperature. Alternatively, ultrasound exhibited a better performance in triggering the transformation of cross-linked polymers back to the original ones. The DA linkage could also be solidified by aromatization. The thermal properties were well controlled by reversible cross-linking. These 100% bio-based polyamides would open the window for the development of smart sustainable polymers with broad applications.
研究领域:
高分子材料科学
·
绿色化学
·
智能材料
·
可持续化学
·
生物医学工程
·
功能高分子
·
刺激响应材料
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2016
·Vol. 27
·期 12
·12813-12819
·
IF 1.798
Li Jun,Wang Yao,Huang Zongyu,Huang Kai,Qi Xiang,Zhong Jianxin
We demonstrated that titanium dioxide (TiO 2 ) significantly enhances the reversible capacity of silicon nanoparticles (SiNPs) used as the anode material for lithium ion batteries. The novel silicon and titanium dioxide core–shell nanoparticles (Si/TiO 2 ) was prepared via a facile sol–gel method with the following heat-treatment process. The as-prepared materials were confirmed by X-ray diffraction, Raman spectra and transmission electron microscope. As an anode material for battery, the electrode was investigated by a series of electrochemical measurements. The as-prepared Si/TiO 2 electrode exhibits superior electrochemical performance in comparison with pure SiNPs, which realizes an initial capacity as high as 2636.9 mAh/g and still retains 1010.7 mAh/g even after 100 cycles of charging and discharging. The excellent cycle stability and capacity retention of the as-prepared electrode would be attributed to the existence of TiO 2 layers to accommodate the large volume changes of silicon and enhancement ability to minimizes loss of pulverization during the lithium insertion/desertion cycles. Therefore, the as-prepared Si/TiO 2 is believed to be an potential anode material for lithium-ion battery applications.
研究领域:
材料科学
·
电化学
·
纳米科技
·
能源存储
·
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）