JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Tingting Yu,Shaobin Li,Li Zhang,Fengbo Li,Jianxin Wang,Hong Pan,Deqing Zhang
Designing dual-functional electrode materials for supercapacitors and pollutant sensors has attracted great interest from researchers for urgent demand in green energy and the environment. In this work, a novel electrode material V 2 CT x @NiCoMn-OH was successfully constructed for dual-functional orientation via a two-step synthesis strategy, in which the NiCoMn-OH with a three-dimensional (3D) hollow structure was fabricated by employing ZIF-67 as a template and simple anion exchange and composited with the two-dimensional (2D) layered V 2 CT x MXene. The intercalation of NiCoMn-OH can effectively limit the self-accumulation of V 2 CT x MXene nanosheets and build a 3D cross-linked hollow structure, thereby broadening the ion transport channel, exposing more active sites of V 2 CT x @NiCoMn-OH, and simultaneously improving the conductivity of NiCoMn-OH. Benefiting from the unique 3D cross-linked hollow structure, the optimized V 2 CT x @NiCoMn-OH-20 electrode material exhibits an excellent specific capacitance of 827.45 C g −1 at 1 A g −1 . Furthermore, the electrode material has excellent capacitance retention of 88.44% after 10,000 cycles. Moreover, the V 2 CT x @NiCoMn-OH-20//AC ASC device displays a high energy density of 88.35 Wh kg −1 as well as high power density of 7500 W kg −1 during operation. Additionally, the V 2 CT x @NiCoMn-OH-20 exhibited excellent electrocatalytic performance in the detection of hydroquinone, including the low detection limit of 0.559 μM (S/N = 3) and the wide linear range of 2–1050 μM. Therefore, the prepared V 2 CT x @NiCoMn-OH-20 has great potential applications in the fields of supercapacitors and hydroquinone sensors.
研究领域:
材料科学
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能源技术
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环境科学
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电化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2024
·
IF 4.1
Shuting Jiang,Yifan Wang,Haoran Cheng,Gongliang Zhang,Hongman Hou,Jingran Bi,Shuang Yan,Hongshun Hao
A unique multifunctional photoelectrochemical(PEC) platform for the simultaneous detection and inactivation of Salmonella enteritidis (SE) was proposed. The photoactive material in the platform was a Bi 2 MoO 6 /V 2 CTx composite, and gold nanoparticles were modified to link the aptamer via Au-S bonds. The aptamer was to link the complementary DNA (cDNA) to the electrode surface via base complementarity. In the presence of SE, the aptamer attached to Salmonella enteritidis selectively and then the cDNA was released from the aptamer electrode, the photocurrent signal was amplified, allowing for quantitative detection of Salmonella enteritidis . The linear range of the method was 1.82 × 10 2 CFU/mL to 1.82 × 10 8 CFU/mL based on the specific recognition of Salmonella enteritidis by aptamer. The detection limit was 26 CFU/mL. Furthermore, due to its photoelectrocatalytic action, the PEC platform demonstrated strong antibacterial activity (99.99 %). The new technique was created to detect and inactivate Salmonella enteritidis in a timely and sensitive manner.
研究领域:
分析化学
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生物技术
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材料科学
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微生物学
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Yujing Liu,Qi Liu,Chengyao Zhao,Liping Liu,Zhongqiu Liu,Anguo Ying,Zhibin Pang,Xuping Sun,Pu Chen,Guang Chen
Owing to the adverse influences of irreversible oxidation, the development of MXene-based materials, especially those with satisfactory performance and longevity for aqueous energy storage, continues to suffer severe challenges. Herein, the strategy of targeted passivation-supported defect-lock-oxygen is conceived, whereby engineered the V 2 CT x material for controllable partial oxidation with enhanced regioselectivity. When the material works, inside the intrinsic defects, the outward diffusion of oxidation is confined by the Lewis bases around the defects, which allows for the controllable progress of oxidation. The defect-locked oxygen oxidizes the exposed carbon, thus forming sufficient amorphous carbons for enhancing the capacitive-type adsorption of K-ions. Then the oxidized defects enabled the fast kinetics via the cross-layer transport of K-ions. Benefiting from the strategy, the electrode assembly V 2 CT x -RTIL (V 2 CT x equipped with room temperature ionic liquid) exhibits high capacity, good rate capability, and ultra-longevity compared with those of the MXene materials so far reported. This work presents the first strategy of targeted passivation-supported defect-lock-oxygen for high-rate capability and super long-cycling aqueous K + storage and hopefully would provide the inspiration for the future design of novel electrodes.
研究领域:
材料科学
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能量存储
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电化学
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2023
·Vol. 30
·期 3
·1457-1467
·
IF 2.8
Xu Wengang,Zhang Xiaonan,Li Junhao,Chen Xiaobo,Lan Lin,Zhang Jun,Ling Francis Chi-Chung,Ru Qiang
The scaffolded hierarchical CeVO 4 /V 2 CT x -MXene composite is harvested to boost the performance of vanadium oxides in aqueous zinc-ion batteries. Benefiting from the high electronic-ion conductivity of V 2 CT x -MXene and the multilayered structure of the composite, CeVO 4 /V 2 CT x -Mxene cathode depicts the advantages of the acceptable zinc storage and ionic reaction kinetics. Compared with pure CeVO 4 , CeVO 4 /V 2 CT x -MXene cathode shows a reversible discharge capacity of 295.0 mAh g −1 at 1 A g −1 , capacity retention of 81.6% over 3000 cycles at 5 A g −1 , and good high-rate performance of 233.5 mAh g −1 at 8 A g −1 . The quasi-solid-state batteries of CeVO 4 /V 2 CT x -MXene demonstrate well mechanical deformability and good cycling performance. This work provides a reference for solving the problem of vanadium-based materials for aqueous zinc-ion batteries.
研究领域:
材料科学
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能量存储
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电化学
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Jie Liu,Youlin Xiong,Ting Wu,Xining Zhang,Jialin Zhao,Shuangfei Cai,Wei Zhang,Rong Yang
Rational design and controllable construction of supported nanostructures with excellent antibacterial property remain a great challenge. Recently, transition metal carbides/nitrides/carbonitrides (MXenes) have attracted much interest in many fields due to their large specific surface areas and good photothermal property. Herein, a simple yet effective surface engineering strategy based on the tuning of MXene surface chemistry is presented, which allows in-situ controlled growth of the Pd nanocubes on the V 2 CT x nanosheets. Briefly, the exfoliated V 2 CT x nanosheets by HF are annealed, which changes the composition of surface terminations while creating the mesoporous structures. The annealing largely affects the exposure and oxidation states of the adjacent V atoms and allows the controllable growth of Pd nanocubes. Interestingly, the obtained Pd@V 2 CT x nanocomposites show enhanced peroxidase-/oxidase-like activities and intrinsic photothermal effect in the near infra-red (NIR) region due to the strong metal-support interaction. Furthermore, the combined nanocatalytic-photothermal treatment by their versatilities remarkably improves the antibacterial efficacy, giving a high killing rate (above 98 % for both Escherichia coli and Staphylococcus aureus ). This work provides a new avenue to develop the supported metal nanostructures based on MXenes for antibacterial application.
研究领域:
材料科学
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纳米技术
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生物医学工程
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化学
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Bo Zhang,Yanrong Han,Yanrong Chen,Chenyu Wang,Guozhen Fang,Shuo Wang
A novel molecularly imprinted electrochemical sensor (MIECS) is successfully prepared for the chlortetracycline (CTC) determination in food, based on a gold‑platinum ruthenium/vanadium carbide (Au-PtRu/V 2 CT x ) nanocomposite integrated with a molecularly imprinted polymer (MIP) film. The incorporated nanocomposite, featuring excellent electron transport properties, enhances the current response owing to the synergistic effect between the Au-PtRu nanoalloy (NA) and V 2 CT x MXene. Following a one-step electropolymerization process and the efficient removal of template molecules, imprinted cavities are formed on the imprinted electrode (MIP/Au-PtRu/V 2 CT x /GCE) surface, enhancing the targeted recognition of CTC molecules. Under optimized conditions, the sensor exhibits a broad linear range from 1 to 120 μM with a low detection limit of 0.16 μM (S/N = 3). Besides, the sensor demonstrates excellent selectivity, reproducibility, reusability and stability. Its practical applicability is further validated through CTC detection in food samples, yielding satisfactory spiked recoveries (83.3–93.6 %), which are consistent with high-performance liquid chromatography (HPLC) results.
研究领域:
分析化学
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食品安全
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纳米技术
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电化学
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高分子科学
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 34
·期 7
·2309624
·
IF 19
Qi Jin,LiRong Zhang,MingLi Zhao,Lu Li,XianBo Yu,JunPeng Xiao,Long Kong,XiTian Zhang
Lithium–sulfur batteries (LSBs) currently face challenges including lithium polysulfide shuttling, sluggish sulfur redox kinetics, severe lithium dendrite growth, and volume change. Herein, an advanced dual-functional host is designed by embedding 3D N-doped carbon fibers with abundant 2D V 2 CT x nanosheets (N/CF@V 2 CT x ). The N-doped carbon fibers act as “thread” to connect the V 2 CT x nanosheets and form a unique open 3D macroporous structure. This structure effectively prevents the restacking of the V 2 CT x nanosheets and exposes their lithiophilic and sulfurophilic sites. Consequently, the N/CF@V 2 CT x host effectively suppresses the shuttling of LiPSs and improves the cathodic kinetics. Furthermore, the 3D-ordered porous skeleton integrated with abundant lithophilic sites enables uniform Li deposition and homogeneous Li-ion flux, thereby inhibiting dendrite growth and mitigating volume expansion. The as-assembled LSBs exhibit excellent rate capability (640 mAh g −1 at 15 C) and outstanding cycling stability (0.019% capacity decay per cycle throughout 1200 cycles at 1 C). Moreover, the pouch cell assembled with the N/CF@V 2 CT x host demonstrates a high energy density of 350 Wh kg −1 and good cycling stability. This research presents a promising approach to address the challenges of both the sulfur cathode and the lithium anode comprehensively and effectively in working LSBs.
研究领域:
储能
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材料科学
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电化学
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纳米材料
·
电池技术
✓ 已验证
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2023
·
IF 4.4
Tianyi Zhu,Qiukai Tang,Yanbo Zeng,Shijie Chen,Yiwen Yang,Hailong Wang,Jianrong Chen,Longhua Guo,Lei Li
A novel fluorescence aptasensor of prostate-specific antigen (PSA) was established using few-layer vanadium carbide (FL-V 2 CT x ) nanosheet as a quencher. First, FL-V 2 CT x was prepared by the delamination of multi-layer V 2 CT x (ML-V 2 CT x ) with tetramethylammonium hydroxide. The aptamer-carboxyl graphene quantum dots (CGQDs) probe was prepared by combining the aminated PSA aptamer and CGQDs. Then, the aptamer-CGQDs were absorbed onto the surface of FL-V 2 CT x by hydrogen bond interaction, which led to the decrease in fluorescence of aptamer-CGQDs due to photoinduced energy transfer. After addition of PSA, PSA-aptamer-CGQDs complex was released from FL-V 2 CT x . The fluorescence intensity of aptamer-CGQDs-FL-V 2 CT x with PSA was higher than that without PSA. The FL-V 2 CT x -based fluorescence aptasensor provided a PSA detection linear range from 0.1 to 20 ng mL −1 with detection limit of 0.03 ng mL −1 . The ΔF value of fluorescence intensities for aptamer-CGQDs-FL-V 2 CT x with and without PSA was 5.6, 3.7, 7.7, and 5.4 times of ML-V 2 CT x , few-layer titanium carbide (FL-Ti 3 C 2 T x ), ML-Ti 3 C 2 T x and graphene oxide aptasensors, respectively, indicating the advantage of FL-V 2 CT x . The aptasensor had high selectivity for PSA detection compared with some proteins and tumor markers. This proposed method had convenience and high sensitivity for PSA determination. The determination results of PSA in human serum samples using the aptasensor were consistent with those by chemiluminescent immunoanalysis. The fluorescence aptasensor can be successfully applied for PSA determination in serum samples of prostate cancer patients.
研究领域:
分析化学
·
生物传感器
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纳米技术
·
癌症诊断
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Yuming Zhang,Junming Cao,Junzhi Li,Zeyu Yuan,Dongdong Li,Lili Wang,Wei Han
High-performance aqueous electrochemical energy storage technology has attracted extensive research interest due to its high safety and potential for commercialization. Herein, following the simultaneous doping-electrostatic synergistic assembly strategy, we synthesized the 2D/2D Co-doped NiMn-Layered double hydroxide (LDH)/V 2 CT x MXene (CNMV) composite materials that serve as advanced electrodes for aqueous energy storage devices, such as supercapacitors and zinc ion batteries (ZIBs). For supercapacitors, benefiting from the hetero ion doping effect, the as-assembled CNMV electrode exhibits a higher specific capacitance of 1005 F g −1 at a current density of 1 A g −1 . For the assembled asymmetric supercapacitor (ASC) devices, a high energy density of 30.16 Wh kg −1 at 0.7 kW kg −1 was achieved. Acting as the cathode for ZIBs, CNMV exhibits a high reversible capacity of 322.7 mA h g −1 at 0.2 A g −1 after 100 cycles, and a considerable energy density of 368.7 W h kg −1 at a power density of 246 W kg −1 . The battery-type transformation to the pseudocapacitance-type CNMV electrode for the supercapacitor was demonstrated by quantitative kinetic analysis, while phase transformation and Zn 2+ insertion/extraction for zinc ion storage mechanism were demonstrated by ex-situ XRD and XPS. This study provides a facile and effective approach for the design of high-performance MXene-based electrodes for aqueous electrochemical energy storage devices.
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
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yunfeng Wang,Haibao Mu,Shasha He,Huanmin Yao,Shuai Wang,Yiyun Yang,Guanjun Zhang
In the Internet of Things (IoT) era, self-powered sensors provide an effective way to solve the energy problem. In this paper, a V 2 CTx-BaTiO 3 -V 2 CTx@Ecoflex (VBV) composite dielectric layer membrane with a sandwich structure is proposed and used to construct self-powered flexible sensor devices. Due to the charge trapping ability of the V 2 CTx layer with abundant functional groups and the charge storage ability of the BaTiO 3 layer, the charge loss of the device during contact- separation gets reduced, which improves the TENG output performance. The peak voltage of VBV-TENG is up to 550 V, which is 1.6 and 1.8 times higher than the output of TENG based on V 2 CTx and BaTiO 3 doping in separate, respectively. The VBV-TENG can light up to 400 LEDs under tapping and achieve a power density of 12.8 W/m 2 with optimal impedance matching. It can not only be used as an energy-harvesting device, but has also been shown to be a self-powered pressure sensor with an ultra-high sensitivity of 23.7 V/kPa, which can be used for the monitoring of human movement physiological signals. Finally, a self-powered flexible material recognition sensor based on the VBV composite dielectric layer is constructed by rational design, which realizes the effective recognition of various materials. This study provides a new pathway for design of high-performance dielectric layer of TENG, and explores the application of realizing multifunctional self-powered sensors based on TENG.
研究领域:
材料科学
·
能源技术
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
Energy Material Advances
·
2023
·
IF 12.9
Xinliang Li,Mian Li,Wenyu Xu,Zhaodong Huang,Guojin Liang,Qi Yang,Qing Huang,Chunyi Zhi
Despite the remarkable ion-hosting capability of MXenes, their electrochemical performance is restricted to the ion shuttle barrier stemming from the capacious surface and the sluggish chemical activity of intrinsic transition metal layers. Herein, we construct a vertically aligned array of V 2 CT X flakes utilizing a carbon sphere template (V 2 CT X @CS), with the interlayer galleries outward facing the external electrolyte, to shorten the diffusion length and mitigate the ion shuttle barrier. Moreover, we leverage the high sensitivity of V 2 CT X flakes to the water–oxygen environment, fully activating the masked active sites of transition metal layers in an aqueous environment via continuous electrochemical scanning. Aqueous V 2 CT X @CS/Zn battery delivers a novel capacity enhancement over 42,000 cycles at 10 A g −1 . After activation, the capacity reaches up to 409 mAh g V 2 CT X − 1 at 0.5 A g −1 and remains at 122 mAh g V 2 CT X − 1 at 18 A g −1 . With a 0.95-V voltage plateau, the energy density of 330.4 Wh kg V 2 CT X − 1 surpasses previous records of aqueous MXene electrodes.
研究领域:
材料科学
·
电化学
·
储能
·
纳米材料
·
电池技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yuhao Xia,Li Xu,Xingxing Li,Chuankun Zhang,Manman Yu,Yanan Ma,Yang Yue,Yi Yuan,Mengdi Guo
TEM, XRD, XPS and DFT have been employed to investigate energy storage mechanism of FZIHM. • FZIHM demonstrates wide window voltage and good flexibility. • This work may pave the way for further advance high performance zinc-ion hybrid supercapacitors. Aqueous zinc ion hybrid micro-supercapacitor is considered for emerging cutting-edge candidate for micro-energy storage technologies due to their inimitable advantages of low-cost materials, high safety, high abundance and environmental friendliness. The selection of electrode materials and the matching of positive and negative electrodes are of vital importance for enhancing the electrochemical performance of flexible zinc ion hybrid micro-supercapacitor (FZIHM) using V 2 CT x MXene as anode, MoO 3 as cathode, demonstrating an areal capacitance of 108.26 mF cm −2 , along with about 90% capacitance retention even after 5000 loops test. And it also exhibits excellent flexibility with 83.7% capacitance retention even after 1000 bending cycles. The transmission electron microscopy (TEM), X-ray diffractometer, X ray photoelectron spectroscopy (XPS) and theoretical calculation demonstrates that zinc ions entered the interlayer of the V 2 CT x anode during the charging process, resulting in an increase in the d-spacing. During the discharging process, zinc ions were released from the d-spacing of the V 2 CT x anode, and the d-spacing returned to its original position. This work using V 2 CT x MXene as anode material for zinc ion hybrid micro-supercapacitors may pave the way for further advance high-performance zinc-ion hybrid supercapacitors.
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DOI
高影响因子
危险品化学品经营许可证（带存储）