JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Anxin Li,Minfeng Chen,Qinghua Tian,Xiang Han,Jizhang Chen
With the increasing popularity of aqueous zinc-ion batteries , extensive research has been dedicated to mitigating dendritic growth and parasitic reactions for zinc metal anodes. While zinc foil is currently used as a common anode, zinc powder (Zn-P) turns out to be a promising alternative. However, Zn-P is more prone to experience corrosion and induce hydrogen evolution due to its larger specific surface area, thereby resulting in poor cyclability for Zn-P-based batteries. In this study, a simple yet highly effective strategy is developed to modify Zn-P with in-situ formed indium metal protective layer that owns larger hydrogen evolution overpotential than zinc metal. The modified Zn-P is combined with nanocellulose and carbon black to form a composite electrode, which can effectively resist corrosion and hydrogen evolution, facilitate desolvation process, and promote zinc deposition kinetics. Thanks to that, the modified Zn-P realizes significantly improved cumulative zinc plating capacity of 500 mAh cm −2 during symmetric cell test and the assembled Zn//MnO 2 battery achieves impressive capacity retention of 97.6% after 2000 cycles. Overall, the composite electrode not only outperforms its unmodified counterpart but also exhibits distinct advantages over previously reported Zn-P-based electrodes. This work reveals a universal pathway to modify metal powder electrodes towards high-performance batteries.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
Advanced Materials Interfaces
·
2019
·Vol. 6
·期 24
·1900959
·
IF 4.713
Zhiwei Li,Shixue He,Chenchen Ji,Hongyu Mi,Chenchen Lei,Zhan Li,Huan Pang,Zuizui Fan,Chang Yu,Jieshan Qiu
Exploring advanced electrode materials with superb energy/power densities and long lifetime as well as low cost is the recent focus of hybrid solid-state supercapacitor (HSSC). This study reports a novel hierarchical bimetallic hydroxide (Ni 1 Co 1 -OH) built by nanowire-lapped bonfire-like bundles through a facile and scalable method, and provides thorough insights into possible formation mechanism and structural merits of the interesting hierarchical architecture. Benefiting from multistep redox reactions, high accessible surface area and fast kinetics contributed by the unique structure, Ni 1 Co 1 -OH using 2 m KOH electrolyte can achieve highly improved gravimetric capacity/capacitance of 876.8 C g −1 /1753.6 F g −1 at active mass loading of 3 mg cm −2 at 1 A g −1 , and especially deliver a record-high areal capacity of 7.6 C cm −2 at 1 A g −1 under a commercial loading of 15 mg cm −2 . 1.5 V Ni 1 Co 1 -OH based HSSC with the poly(vinyl alcohol)/KOH gel electrolyte verifies the intriguing performance including high energy/power densities of 27.9 Wh kg −1 /13812.9 W kg −1 , a long life over 10 000 cycles, and a low self-discharge rate with a voltage decline of 20% after 24 h. The findings identify the scalable production of high-performance bimetal compounds, which will boost the development of highly demanding HSSC devices.
研究领域:
材料科学
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电化学
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储能技术
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2019
·
IF 4.191
Gaofeng Chen,Tingzhou Lei,Zhiwei Wang,Shijie Liu,Xiaofeng He,Qian Guan,Xiaofei Xin,Haiyan Xu
A mesoporous composite CoCuK/ZrO 2 -SiO 2 catalyst with high activity and long life was prepared by vacuum impregnation and multisolvent self-assembly. The catalytic activity of the mesoporous catalyst was investigated for the synthesis of ethanol and higher alcohols from biomass syngas from wheat straw. The catalyst was characterized by small-angle X-ray diffraction, power XRD, N 2 adsorption and desorption experiments (BET), and transmission electron microscopy (TEM). The effects on the reaction activity and products from the addition of alkali metal promoter K, the modification of ZrO 2 and different copper/cobalt compositions were analyzed. The life of the catalyst was determined using a pressurized fixed-bed reactor. The results show that the catalyst possesses the high CO hydrogenation activity, high C 2+ OH selectivity and high life expectancy needed to meet industrial applications.
研究领域:
催化化学
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可再生能源
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 10
·期 5
·2201627
·
IF 6.389
Xin Wang,Kaili Wu,Wei Cao,Kun Rui,Wenchao Wang,Ruixue Zhu,Jixin Zhu,Zhiping Yan
The intrinsic charge carriers’ recombination and excited states decay greatly suppress the active species survival and photo(electro)catalytic performance. Inspired by Z-scheme strategy, the polymeric nitrogen-rich carbon nitride/cadmium sulfide (g-C 3 N 5 /CdS) core–shell heterojunction is constructed to optimize photocatalytic performance. The optimal hydrogen production rate of g-C 3 N 5 /CdS heterojunction catalyst under visible light without adding extra cocatalyst is up to 7860 µmol h −1 g −1 , which is 3 and 71 times higher than that of pure CdS and g-C 3 N 5 photocatalysts, respectively. The femtosecond transient absorption spectroscopy is employed to observe the kinetic decay of carriers in the heterojunction, revealing the ultrafast charge trapping process (τ 1 = 52.3 ps) and long-lived excited states (τ 3 = 1109.2 ps) in g-C 3 N 5 /CdS photocatalyst. Meanwhile, density functional theory calculation results comprehensively suggest the promoted charge separation in heterojunction. Cost-effective Z-scheme g-C 3 N 5 /CdS photocatalyst in this work shows a great potential for sustainable and high-efficiency solar-to-H 2 conversion.
研究领域:
材料科学
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光催化
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可再生能源
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2022
·
IF 5.304
Jiang Chang,Deying Zou,Honglin Ren,Xilin Liu,Meng Li,Zhaozhao Si,Cheng Han,Zengshan Liu,Shiying Lu,Pan Hu
The 10-kDa chemokine interferon-gamma-inducible protein 10 (IP-10) is considered one of the most promising biomarkers for diagnosing both tuberculosis and COVID-19 infections. The blood samples of patients at different disease states contain different levels of IP-10, which need to be detected in a rapid, specific and ultrasensitive manner. Here, we report a bienzymatic chemiluminescence sandwich immunoassay (BCSI) assay for the ultrasensitive and stable detection of IP-10. In this assay, IP-10 is first efficiently captured using a double-antibody sandwich strategy. The detection antibody is linked to catalase (CAT) via a streptavidin–biotin signal amplification system to achieve highly efficient conversion of hydrogen peroxide (H 2 O 2 ) to oxygen and water. In the chemiluminescence (CL) reaction, horseradish peroxidase (HRP) acts as an efficient catalyst, and 4-bromophenol acts as an enhancer for the cyclic transition of HRP, which results in a strong and durable CL signal. The bienzymatic catalysis with CAT and HRP and the potentiation of 4-bromophenol enables the assay to be ultrasensitive and stable. The CL intensity was found to be well correlated with the detection of IP-10 at levels in the range of 0.71 to 125,000 pg/mL, which covers more than 6 orders of magnitude, with a detection limit of 0.63 pg/mL. The coefficient of variation was 1.49%, and the recovery range of IP-10 in serum was 86.21%-104.57%. This assay provides a wide linear range and high sensitivity and may be a promising method for the high-throughput detection of IP-10 in the diagnosis of tuberculosis and COVID-19.
研究领域:
医学诊断
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免疫学
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化学生物学
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2022
·Vol. 15
·期 1
·212
·
IF 4.967
Zhuoyuan Zheng,Haichuan Cao,Wenhui Shi,Chunling She,Xianlong Zhou,Lili Liu,Yusong Zhu
Aqueous zinc-ion batteries (ZIBs) represent an attractive choice for energy storage. However, ZIBs suffer from dendrite growth and an irreversible consumption of Zn metal, leading to capacity degradation and a low lifetime. In this work, a zinc–alginate (ZA) hydrogel–polymer electrolyte (HGPE) with a non-porous structure was prepared via the solution-casting method and ion displacement reaction. The resulting ZA-based HGPE exhibits a high ionic conductivity (1.24 mS cm−1at room temperature), excellent mechanical properties (28 MPa), good thermal and electrochemical stability, and an outstanding zinc ion transference number (0.59). The ZA-based HGPE with dense structure is proven to benefit the prevention of the uneven distribution of ion current and facilitates the reduction of excessive interfacial resistance within the battery. In addition, it greatly promotes the uniform deposition of zinc ions on the electrode, thereby inhibiting the growth of zinc dendrites. The corresponding zinc symmetric battery with ZA-based HGPE can be cycled stably for 800 h at a current density of 1 mA cm−2, demonstrating the stable and reversible zinc plating/stripping behaviors on the electrode surfaces. Furthermore, the quasi-solid-state ZIB with zinc, ZA-based HGPE, and Ca0.24V2O5(CVO) as the anode, electrolyte, and cathode materials, respectively, show a stable cyclic performance for 600 cycles at a large current density of 3 C (1 C = 400 mA g−1), in which the capacity retention rate is 88.7%. This research provides a new strategy for promoting the application of the aqueous ZIBs with high performance and environmental benignity.Keywords:hydrogel–polymer electrolyte;zinc-ion battery;zinc–alginate (ZA);dendrite-free
研究领域:
能量存储
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材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Yunxing Su,Shuai Liu,Jing Shi,Minghua Huang,Zhicheng Shi,Huanlei Wang,Ting Wang
Lithium metal battery has shown extraordinary promise for electrochemical energy storage due to high theoretical capacity and low reduction potential. However, its energy density improvement and commercial application are seriously limited by the inevitable formation of dendrites and dead lithium and the infinite change of electrode volume during repeated charge-discharge processes. In this work, a three-dimensional Cu foam decorated with a lithophilic sulfide doped carbon layer (Cu 1.81 S-C@CF) is used as an advanced 3D host for long-life lithium metal anode . The average current density is effectively reduced and the volume change is accommodated by the three-dimensional porous structure. Moreover, the effects of different reaction temperature and time on surface morphology and structure of lithophilic layer on 3D current collector is also systemically studied. The Cu 1.81 S-doped carbon layer prepared at a deposition temperature of 800 °C for 2 h (Cu 1.81 S-C@CF-800–2) exhibits excellent lithium dendrite inhibition ability. The symmetrical battery with Cu 1.81 S-C@CF-800–2 as a lithium host could operate for over 6000 h with a low overpotential (about 14.9 mV) without intense voltage fluctuation. Moreover, the Li@Cu 1.81 S-C@CF-800–2 full battery matched with LiCoO 2 (LCO) cathode exhibits a high initial capacity of 142.78 mAh g −1 and excellent capacity retention of 96.4% at 0.2 C, with an average CE of 99.6% over 120 cycles. This work not only successfully prepares a long-life lithium metal anode, but also provides a new strategy for preparing and optimizing lithophilic layer of 3D current collectors.
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
JOURNAL OF MEMBRANE SCIENCE
·
2020
·
IF 7.183
Yun Yang,Qian Wu,Dong Wang,Chenchong Ma,Zheng Chen,Qinting Su,Caizhen Zhu,Cuihua Li
The composite solid electrolytes (CSEs) inherits the high safety of the inorganic solid electrolyte and the easy processing of the organic polymer electrolyte , thereby exhibiting a broad application prospect. However, the performance of the CSE was hard to realizing its practical application in lithium metal batteries . Herein, the significant impact of CSE performance brought about by the addition of ionic liquids was studied and summarized: significantly increase ionic conductivity ; constructing a viscoelastic interface between electrode and electrolyte to reduce the interface impedance; forming a stable and LiF-rich SEI at the negative electrode to inhibit the growth of lithium dendrites ; wetting the LiFePO 4 porous cathode. The LiFePO 4 /CSE-60/Li battery displays high initial discharge specific capacity of 158.2 mAh g −1 and a capacity retention of 86.3% after 400 cycles at 1 C at 55 °C, and with coulombic efficiency of 99.7%. The surface of the lithium metal anode after long-term cycling exhibits to dendrite-free morphology. This research highlights the critical role that ionic liquids play in improving the performance of CSEs and will shed light on designing CSEs for LMB practical applications.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2022
·Vol. 13
·期 1
·1-10
·
IF 17.694
Xiao Fuming,Gao Heqi,Lei Yunxiang,Dai Wenbo,Liu Miaochang,Zheng Xiaoyan,Cai Zhengxu,Huang Xiaobo,Wu Huayue,Ding Dan
Organic near-infrared room temperature phosphorescence materials have unparalleled advantages in bioimaging due to their excellent penetrability. However, limited by the energy gap law, the near-infrared phosphorescence materials (>650 nm) are very rare, moreover, the phosphorescence lifetimes of these materials are very short. In this work, we have obtained organic room temperature phosphorescence materials with long wavelengths (600/657–681/732 nm) and long lifetimes (102–324 ms) for the first time through the guest-host doped strategy. The guest molecule has sufficient conjugation to reduce the lowest triplet energy level and the host assists the guest in exciton transfer and inhibits the non-radiative transition of guest excitons. These materials exhibit good tissue penetration in bioimaging. Thanks to the characteristic of long lifetime and long wavelength emissive phosphorescence materials, the tumor imaging in living mice with a signal to background ratio value as high as 43 is successfully realized. This work provides a practical solution for the construction of organic phosphorescence materials with both long wavelengths and long lifetimes.
研究领域:
材料科学
·
生物医学工程
·
光学
✓ 已验证
DOI
PubMed
高影响因子
ChemSusChem
·
2020
·Vol. 13
·期 8
·1991-1996
·
IF 7.962
Di Li,Wu Tang,Chen Yue Yong,Zheng Hui Tan,Chuan Wang,Cong Fan
Graphical Go Organic ! A long-lifespan small-molecule organic sodium-ion battery is described. The battery is constructed using a 9,10-anthraquinone-2,6-disulfonate (Na 2 AQ26DS) cathode and sodium terephthalate (Na 2 TP) anode, and delivers a maximum discharge capacity of 131 mAh g −1 cathode in 0.5–3.2 V, maintaining an average value of approximately 62 mAh g −1 cathode over 1200 cycles (0.5 A g −1 , ≈4 C). An organic Na-ion battery is reported with a polyanionic 9,10-anthraquinone-2,6-disulfonate (Na 2 AQ26DS, 130 mAh g −1 ) cathode and the Na-intercalated state (Na 4 TP) of sodium terephthalate (Na 2 TP, 255 mAh g −1 ) as the anode. The resulting full cells deliver the maximum discharge capacity of 131 mAh g −1 cathode in 0.5–3.2 V, simultaneously maintaining the average value of ≈62 mAh g −1 cathode during 1200 cycles (0.5 A g −1 , ≈4 C). These results are among the best performing organic sodium-ion full cells reported to date.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Kai Wu,Shengkang Zhan,Wei Liu,Xiaoyu Liu,Fanghua Ning,Yuyu Liu,Jiujun Zhang,Jin Yi
Aqueous zinc ion battery is a potential alternative for a stationary energy storage system owing to the inherent properties of the Zn anode. However, the Zn anode suffers from serious Zn dendrite due to the uneven Zn plating. Thus, inspired by the nano-drug delivery to the target site of the tumor cell, it would be a promising strategy to introduce targeted delivery of zinc ion in the electrolyte for even Zn plating. Passive targeted transport plays an important role in nano-drug delivery, which presents the nano-drug would be released by the nano-drug carrier based on polymer to the particular target site. As a proof-of-concept, a pseudopolyrotaxane conducting the nano-drug carrier applied in targeted cancer therapy is employed as the gel polymer electrolyte (GPE) for long-life Zn anodes. The pseudopolyrotaxane is formed by the self-assembling of α-cyclodextrin (CD) and poly(ethylene oxide), where the zinc ion can be absorbed and delivered to the target site of the Zn anode benefiting from the hydrogen-bond. Impressively, even Zn plating can be induced by the hydroxyl groups of CD to inhibit Zn dendrite. Moreover, the hydrogen evolution reaction is suppressed by the GPE. Less produced H2 is detected in the GPE, which is demonstrated by the online mass spectrometry. Thus, the Zn||Zn symmetrical cell based on the GPE exhibits a cycling life of 1370 h. Compared to the one based on aqueous electrolyte, Zn||MnO2 battery based on the GPE shows a higher capacity retention. This work is expected to avail the development of the aqueous zinc ion battery.
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
ACS Applied Energy Materials
·
2020
·
IF 4.473
Yang Dong,Ming Jia,Yuanyuan Wang,Jianzhong Xu,Yongchang Liu,Lifang Jiao,Ning Zhang
Rechargeable aqueous zinc/vanadium pentoxide (Zn/V2O5) battery chemistry has recently attracted a great attention due to its high safety, material abundance, cost effectiveness, and desirable energy density. However, the reaction mechanism of V2O5 in an aqueous electrolyte remains a topic of discussion, and the limited life span resulting from the active materials dissolution hinders the further development of the Zn/V2O5 battery. Here, we report a long-life aqueous Zn/V2O5 battery using a simply ball-milled V2O5 cathode, a concentrated aqueous ZnSO4 electrolyte, and a metallic Zn anode. Electrochemical, structural, and spectroscopic analyses reveal that the V2O5 electrode experiences a highly reversible proton (H+) and Zn2+ co-intercalation mechanism in aqueous media, which differs from the conventional cognition that Zn2+ ion as the only charge carrier inserts into the V2O5 host. The electrolyte-involved (dis)appearance of zinc sulfate hydroxide on the electrodes’ surface caused by H+ (de)intercalation has also been clarified. In addition, the optimized 3 M ZnSO4 electrolyte can not only suppress the dissolution of the V2O5 cathode but also enhance the stability of the Zn anode, thereby enabling the stable operation of the Zn/V2O5 battery with a reversible capacity of 357 mAh g–1 after 2000 cycles without obvious decay at 2.0 A g–1. This work opens up frontiers in the mechanism insight and electrolyte formulation for aqueous Zn batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）