Green Chemical Engineering
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2025
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IF 7.6
Guangcai Zhao,Shuo Meng,Zhongyuan Zheng,Jian Guo,Lu Chen,Hongli Zheng,Peng Zhang,Jia Yu,Lujie Zuo,Hongbin Zhao,Ting He
Vanadium-based compounds are promising cathodes for aqueous zinc-ion batteries owing to their high capacity derived from multi-electron redox reactions. However, their practical application is often hampered by poor rate capability, caused by low electrical conductivity and sluggish Zn 2+ diffusion kinetics. Herein, we propose a precise amorphization strategy applied to conductive V 2 CT x MXene to overcome these limitations. Starting from exfoliated few-layer V 2 CT x , a controlled annealing process in argon induces a crystalline-to-amorphous transition, which effectively elevates the valence state of surface vanadium, creates abundant active sites for Zn 2+ storage, and expands the interlayer spacing to facilitate ion diffusion. Meanwhile, the intrinsic conductive V-C-V framework remains intact, ensuring rapid electron transport. As a result, the amorphous a-V 2 CT x cathode delivers remarkable electrochemical performance: a high reversible capacity of 543 mAh/g at 1 A/g, exceptional rate capability (494 mAh/g at 30 A/g), and outstanding cycling stability over 3000 cycles with a minimal decay rate of 0.012% per cycle. This work demonstrates the great potential of phase engineering MXenes for developing high-performance energy storage materials.
研究领域:
材料科学
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储能
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电化学
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纳米材料
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DOI
高影响因子
Journal of Energy Storage
·
2026
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IF 9.8
Ying Gao,Libo Wang,Ji'a Yang,Qixun Xia,Qianku Hu,Yukai Chang,Aiguo Zhou
MXenes are a promising cathode materials for aqueous zinc ion batteries (AZIBs) due to their layered structure, metallic conductivity, and hydrophilicity. Vanadium diselenide (VSe 2 ) is a typical transition metal dichalcogenide with good metallic properties and high conductivity. In this work, V 2 CT x was successfully synthesized by etching V 2 AlC with a hydrochloric acid solution of sodium fluoride, and surface selenization of V 2 CT x was accomplished using a high-temperature solid-state reaction. During the reaction process, some vanadium atoms on the surface of V 2 CT x were selenized and transformed into small VSe 2 nanosheets, while oxygen-containing groups form V 2 O 3 with vanadium atoms, and resulting in a V 2 CT x /VSe 2 /V 2 O 3 heterostructure material. The components of the nanohybrid were tuned by changing the mass ratio of selenium to V 2 CT x and the optimized VSe 2 –14 composite simultaneously achieved high specific capacitance (224.8 mAh/g after 200 cycles at 0.5 A g −1 ), excellent rate performance (126.2 mAh/g at 10 A g −1 ), and satisfactory cycle stability (141.3 mAh/g after 1300 cycles at 5 A g −1 ). This study provides a reference for the application of MXene-based materials in aqueous zinc ion batteries.
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高影响因子
ACS Applied Energy Materials
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2022
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IF 6.959
Qing Zhao,Shanshan Tan,Ji Li,Jiaming Li,Xianyu Chu,Cuimei Zhao,Junkai Zhang,Li Wang,Shichong Xu,Ming Lu
The single-component electrode materials have not met the requirement of high performance of energy storage devices. Hybrids combined with two-dimensional materials and nanoparticles exhibit problem-solving ability. In this work, ZnFe2O4@V2CTx hybrids are fabricated by in situ chemical co-precipitation, and the morphology, microstructure, and electrochemical performance are characterized. Scanning electron micrscopy images show the internal gaps of the accordion-like structure of V2CTx MXene are filled with ZnFe2O4 nanoparticles. On the basis of the different lithium storage mechanisms and the stable interface electronic transfer, the hybrid with the weight ratio of V2CTx MXene and ZnFe2O4 being 0.5:1 exhibits an amazing reversible capacity of 1189 mAh g–1 after 100 cycles, which is 7.62 times that of pure ZnFe2O4. Obviously, ZnFe2O4@V2CTx MXene electrodes contribute synergetic charge storage via the redox and intercalation mechanism. Interestingly, ex situ X-ray photoelectron spectra are utilized to explore the complicated electrode reaction. These results tend to confirm Zn has not been involved in the lithium storage process. The study will illuminate the application prospect of transition metal oxides-based materials as high-performance electrodes.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
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IF 9.965
Han Wang,Bingzhe Jia,Zhilin Zhao,Chunyan Luo,Xinming Wu
Two-dimensional (2D) materials used in potassium ion batteries (PIBs) have high theoretical capacitance and excellent rate characteristics. However, the origin of low diffusion of potassium ions and poor storage kinetics still remain challenge mainly due to the large size of potassium ions (0.138 nm) and narrow 2D interlayer spacing. Herein, the V 2 CT x -based hybrids including 1T-MoS 2 (1T -MoS 2 @V 2 CT x ) has been successfully constructed by the magneto-hydrothermal method and proved to be an eminent anode, which can make PIBs have high reversible capacity and eminent rate performance at the same time. Moreover, the combination of 2D 1T-MoS 2 and V 2 CT x not only significantly promotes the transfer of interfacial charges as well as accelerates the transmission and diffusion of electrons and K + , but also helps to alleviate the volume changes caused by the insertion/extraction of large-sized K + during the cycle, which makes the electrode exhibit good cycle stability. Density functional theory (DFT) indicates that the synergy effect between 1T-MoS 2 and V 2 CT x has significantly strengthened the potassium affinities and ion diffusion kinetics in the 1T-MoS 2 @V 2 CT x anode by reducing the ion diffusion energy barrier, thereby showing outstanding K + storage performance, especially in 1T-MoS 2 @V 2 CF 2 . As a result, the 1T-MoS 2 @V 2 CT x anode shows a high reversible capacity of 887.3 mA h g −1 at 0.1 A g −1 , eminent rate performance of the capacity maintaining 563.6 mA h g −1 at 2.0 A g −1 and remarkable cycle stability of 601.2/374.7 mA h g −1 with 69.4/56.5% capacity retention after 2000 cycles at 1.0/2.0 A g −1 . This work provides a new way for the exquisite design of 2D composite electrodes with excellent performance in PIBs.
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PubMed
高影响因子
APPLIED SURFACE SCIENCE
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2022
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IF 7.392
Jiapei Wang,Yunfeng Guan,Qin Zhang,Hui Zhu,Xuanke Li,Yanjun Li,Zhijun Dong,Guanming Yuan,Ye Cong
Developing homogeneous dispersion and efficient loading Pt-based electrocalalyst remains a huge challenge for hydrogen evolution reaction (HER). Herein, a facile approach to deposit Pt nanoparticles on two-dimensional V 2 C MXene (Pt/V 2 CT x ) is achieved. Pt nanoparticles with narrow size distribution (∼3 nm) and high loading capacity are uniformly anchored on the surface of V 2 CT x . The obtained catalysts possess outstanding activity and stability for HER. In 0.5 M H 2 SO 4 , the overpotential of Pt/V 2 CT x (20%) is 67 mV, and the Tafel slope is 20.6 mV/dec. The oxygen-rich surface of V 2 CT x can provide good hydrophilicity, low hydrogen adsorption free energy and oxophilicity to provide abundant bonding sites for Pt nanoparticles. Moreover, the intrinsically excellent conductivity of V 2 CT x and strong coupling between V 2 CT x and Pt are also of benefit for improving the charge transfer and accelerating the HER kinetics. Therefore, Pt/V 2 CT x may be a promising candidate for HER.
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DOI
高影响因子
ACS Nano
·
2021
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IF 15.881
Xiaodong Zhu,Ziyi Cao,Wenjie Wang,Haijing Li,Juncai Dong,Shangpeng Gao,Dongxiao Xu,Lei Li,Jianfeng Shen,Mingxin Ye
Mn-based aqueous zinc-ion batteries (ZIBs) are promising candidate for large-scale rechargeable energy storage because of easy fabrication, low cost, and high safety. Nevertheless, the commercial application of Mn-based cathode is hindered by the challenging issues of low rate capability and poor cyclability. Herein, a manganese–vanadium hybrid, K–V2C@MnO2 cathode, featured with MnO2 nanosheets uniformly formed on a V2CTX MXene surface, is elaborately designed and synthesized by metal–cation intercalation and following in situ growth strategy. Benefiting from the hybrid structure with high conductivity, abundant active sites, and the synergistic reaction of Mn2+ electrodeposition and inhibited structural damage of MnO2, K–V2C@MnO2 shows excellent electrochemical performance for aqueous ZIBs. Specifically, it presents the high specific capacity of 408.1 mAh g–1 at 0.3 A g–1 and maintains the specific capacity of 119.2 mAh g–1 at a high current density of 10 A g–1 in a long-term cycle of up to 10000 cycles. It is superior to almost all reported Mn-based cathodes for ZIBs in the aqueous electrolyte. The superior electrochemical performance suggests that the Mn-based cathode materials designed in this work can be a rational approach to be applied for high-performance ZIBs cathodes.
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DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2024
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IF 5.8
Xiaoyu Zhang,Jianming Xu,Zhiwen Chen,Guanyao Zhu,Aixiang Wei,Dihu Chen
Since wearable pressure sensors have promising applications in the fields of human physiological signal detection and bionic robots, there is an urgent need for wearable pressure sensors with comprehensive attributes such as high sensitivity and wide detection range. Here, we introduce a facile electrospinning process to fabricate a film composed of thermoplastic polyurethane/carboxyl multiwalled carbon nanotube/V 2 CT X -MXene (TPU/c-MWCNTs/V 2 C). This film has high sensitivity and great linearity, designed for flexible piezoresistive sensors. To further enhance sensor performance, we applied a spin-coating of polydimethylsiloxane (PDMS) on the sandpaper surface to create a top substrate with intermittent spinosum structures. Additionally, a layer of TPU fibers was electrospun between the conductive film and the interdigitated electrodes. The assembled components form a flexible piezoresistive sensor with a wide detection range of 0–200 kPa, a high sensitivity of 545.2 kPa −1 , a low detection limit of 5 Pa, a short response time of 48 ms, and excellent long-term durability after 7000 loading/unloading cycles, making the piezoresistive sensor highly discriminating for detecting complex human movements. Thanks to the great sensing performance and stable structure, we conducted various demonstrations to capture human physiological signals, including signals of muscle activity and pulse. These findings indicate the potential of the designed flexible pressure sensor for applications in electronic skin and smart devices.
研究领域:
材料科学
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生物医学工程
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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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.
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DOI
高影响因子
FOOD CHEMISTRY
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2023
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IF 8.8
Jiameng Liu,Mengfei Wang,Chuanpan Guo,Zheng Tao,Minghua Wang,Linghao He,Baozhong Liu,Zhihong Zhang
An electrochemical aptasensor was prepared for the efficient, sensitive, and selective detection of 17β-estradiol. The sensor was based on a defective two-dimensional porphyrin-based metal–organic framework derived from V 2 CT x MXene. The resulting metal–organic framework nanosheets benefited from the advantages of V 2 CT x MXene nanosheets and porphyrin-based metal–organic framework, two-dimensional porphyrin-based metal–organic framework nanosheets demonstrated amplified electrochemical response and enhanced aptamer-immobilization ability compared with V 2 CT x MXene nanosheets. The sensor’s detection limit was ultralow at 0.81 fg mL −1 (2.97 fM), and the 17β-estradiol concentration range was wide, thereby outperforming most reported aptasensors. The high selectivity, superior stability and reproducibility, and excellent regeneration performance of the constructed aptasensor indicated its remarkable potential application for 17β-estradiol determination in diverse real samples. This aptasensing strategy can be used to analyze other targets by replacing the corresponding aptamer.
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DOI
PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2023
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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.
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PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
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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.
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高影响因子
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