Small
·
2023
·Vol. 20
·期 9
·2306241
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IF 13.3
Jianjian Zhong,Jianling Li
2D layer Ti 3 C 2 T x material attracts enormous attention in lithium ion energy storage field owing to the unique surface chemistry properties, but the material still suffers from restacking issue and the restriction on capacity. Herein, copper phosphide (Cu 3 P) nanostructures@Ti 3 C 2 T x composites are prepared by the in situ generation of Cu-BDC precursor in the bulk material followed with phosphorization. The uniformly distributed copper phosphide nanostructures effectively expand the interlayer spacing promoting the structural stability, and achieves the effective connection with the bulk material accelerating the diffusion and migration of lithium ions. The electrochemical activity of Cu 3 P also provides more lithium ion active sites for lithium storage. The X-ray photoelectron spectroscopy (XPS) analysis verifies that Ti─O─P bond with strong covalency allows the upper shift of maximum valence band and Fermi level, stimulating the charge transportation between Cu 3 P and the bulk Ti 3 C 2 T x for better electrode kinetics. 3Cu 3 P@Ti 3 C 2 T x exhibits excellent rate performance of 165.4 mAh g −1 at 3000 mA g −1 and the assembled 3Cu 3 P@Ti 3 C 2 T x //AC Lithium-ion hybrid capacitorsLIC exhibits superior energy density of 93.0 Wh kg −1 at the power density of 2367.3 W kg −1 . The results suggest that the interfacial modification of Ti 3 C 2 T x with transition metal phosphides will be advantageous to its high energy density application in lithium-ion storage.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Lin Chen,Xi Chen,Fei Wang,Yu Tong,Kewei Zhang,Zhengbo Han,Mingzhe Zhang
Metal-organic frameworks (MOFs) are regarded as potential candidate materials with great application prospects in the field of gas sensing. In this study, MOF derivatives were anchored onto MXene sheets through self-assembly technology to prepare a heterojunction material ZnO/Ti 3 C 2 T x MXene with high specific surface area, achieving ultrafast dual gas sensing behavior for H 2 /NO 2 . At a low temperature of 80°C, the ZnO/ Ti 3 C 2 T x MXene heterojunction sensor exhibited an ultrafast response (23.17%) to 500 ppb H 2 within 3.2 s. After a moderate temperature increase to 180°C, it also demonstrated significant sensing performance (46.3%) to 500 ppb NO 2 within 4 s. The electronic interaction mechanism of ZnO/ Ti 3 C 2 T x MXene heterostructures in H 2 and NO 2 detection was revealed through density functional theory calculations and in-situ Raman spectroscopy, clarifying the influence of interfacial charge transfer on sensing performance. Heterogeneous structures achieve the regulation of gas adsorption-induced electron rearrangement and carrier modulation by constructing interface charge-regulating channels, significantly enhancing the response rate, selectivity and reversibility in the detection of H 2 and NO 2 , thereby enabling highly sensitive and trace detection of the two gases.
研究领域:
材料科学
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气体传感技术
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纳米材料
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电子器件
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环境监测
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能源安全
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Aniu Qian,Runze Zhao,Anning Song,Hu Shi
Faradaic capacitive deionization (CDI), which exploits pseudo-capacitive electrodes, is an appealing water-purification candidate from low-salinity desalinated water due to its fast Faradaic electro-sorption and ion intercalations. However, current Faradaic CDI faces the challenge in low salt adsorption capacity and poor selective sodium-ion (Na + ) applicability. Herein, amorphous ferric phosphate (FePO 4 )-anchored on three-dimensional macro-porous Ti 3 C 2 T x network (3D FePO 4 @Ti 3 C 2 T x ) electrode is proposed without scarifying Ti 3 C 2 T x electronic conductivity, wherein sodium-ion captured FePO 4 provided abundant Na + adsorption site for enhancing desalination capacity and Na + selectivity. Simultaneously, highly-interconnected channels accelerated electron/ion transport to enable effective Na + intercalation in electro-sorption. Accordingly, the assembled FePO 4 @Ti 3 C 2 T x //activated carbon (AC) asymmetric CDI device delivered a typical Na + -intercalated behavior with high desalination capacity of 65 mg g −1 , in which electric current generation could power a blue light-emitting diode (LED) screen. Importantly, the asymmetric CDI device enabled an evident Na + selectivity over the Al 3+ with high separator factor up to 6.3 in binary mixture feed of Na + and Al 3+ . This study offers a new idea to achieve high desalination performance and sodium-ion selectivity via 3D framework supported ions-capture structure in seawater desalination.
研究领域:
水处理净化
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电化学
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材料科学
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环境工程
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纳米技术
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能量存储
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离子选择性
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Analytical Methods
·
2024
·
IF 2.7
Jing Li,Xun Zhou,Guanghua Mao,Gangbing Zhu,Yinhui Yi
In recent years, numerous colorimetric methods have been developed for the detection of silver ions (Ag+), yet there remains a need for a simple, sensitive, real-time and quantitative sensing platform. Herein, Ti3C2Tx MXene nanoribbons (Ti3C2TxNRs) were utilized as the carrier material, and gold@platinum (Au@Pt) bimetallic nanoparticles were decorated onto the Ti3C2TxNR surface, for the first time, via a facile self-reduction method. The resulting Au@Pt–Ti3C2TxNR nanohybrid exhibited excellent catalytic activity, facilitating the oxidation of 3,3′,5,5′-tetramethylbenzidine, a colorless substrate, to generate a blue product (oxTMB), displaying prominent peroxidase-like activity. In the presence of Ag+, a remarkable inhibiting effect was observed on the catalytic activity of the Au@Pt–Ti3C2TxNR nanohybrids, effectively halting the generation of oxTMB. Based on this, the as-obtained Au@Pt–Ti3C2TxNR nanozyme was then utilized to develop a novel colorimetric sensing platform for Ag+ detection, with a low detection limit of 1.57 nM and a wide linear detection range from 5.0 nM to 9.0 μM. In addition, by combining the unique advantages of hydrogel materials and smartphone technology, a simple, real-time and quantitative platform for Ag+ monitoring was constructed, highlighting its potential for practical applications in Ag+ detection.
研究领域:
纳米材料科学
·
分析化学
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环境监测
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE ENERGY INSTITUTE
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2024
·
IF 5.6
Zheng Bo,Mengyu Cao,Yaolin Wang,Jianhua Yan,Kefa Cen,Xin Tu
Plasma catalytic CO 2 hydrogenation has emerged as a promising approach for converting CO 2 into valuable chemicals such as CO, offering a potential solution to mitigate greenhouse gas emissions. In this study, we investigate the synergistic effect between plasma and a Cu/Ti 3 C 2 T x MXene catalyst for CO 2 hydrogenation via the reverse water gas shift (RWGS) reaction in a dielectric barrier discharge (DBD) reactor. Our findings reveal a significant enhancement in CO 2 conversion (33.1%) and CO yield (31.9%) when using the Cu/Ti 3 C 2 T x catalyst compared to plasma alone or with a Ti 3 C 2 T x foam. Plasma treatment creates unsaturated Ti sites on the Ti 3 C 2 T x surface, dramatically improving CO 2 adsorption and activation, while Cu nanoparticles significantly enhances the activation and dissociation of H 2 molecules on the catalyst surface. These surface adsorbed hydrogen species readily hydrogenate adsorbed CO 2 molecules through the Langmuir-Hinshelwood mechanism. Furthermore, these surface hydrogen species can also participate in the conversion of gas-phase CO 2 molecules through the Eley-Rideal pathway. This work sheds light on the synergistic plasma catalytic mechanism and provide insights for optimizing CO 2 hydrogenation processes using MXene catalysts.
研究领域:
化学工程
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催化
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环境科学
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等离子体化学
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产品关联
DOI
高影响因子
Nanomaterials
·
2024
·Vol. 14
·期 23
·1925
·
IF 4.4
Yi Hu,Hongwei Wang,Xianliang Ren,Fang Wu,Gaobin Liu,Shufang Zhang,Haijun Luo,Liang Fang
Pore structural regulation is expected to be a facile way to enhance the adsorption performance of MXene. In this work, spherical foam composites consisting of Ti3C2Txand sodium alginate (SA) were synthesized via a vacuum freeze-drying technique. By varying the solution volume of Ti3C2Tx, four distinct Ti3C2Tx@SA spherical foams with honeycomb-like and lamellar structures with a pore diameter in the range of 100–300 μm were fabricated. Their methylene blue (MB) adsorption performances were then systematically compared. The results revealed that the honeycomb-like porous-structured spherical foams have a significantly higher adsorption capacity than their lamellar counterparts. Notably, the Ti3C2Tx@SA honeycomb-like porous foam exhibited a remarkable maximum adsorption capacity (qm) of 969 mg/g, positioning it at the forefront of MB adsorbent materials. Respective analysis of the adsorption kinetics, thermodynamics, and isotherm model indicated that this MB adsorption of Ti3C2Tx@SA honeycomb-like porous foam is characterized to be a physical, endothermic, and monolayer adsorption. The Ti3C2Tx@SA honeycomb-like porous foam also demonstrated excellent resistance to ion interference and good reusability, further attesting to its substantial potential for practical applications. X-ray photoelectron spectroscopy (XPS) analysis was employed to elucidate the adsorption mechanism, which was found to involve the synergistic effect of electrostatic adsorption and amidation reaction. This work not only offers new avenues for the development of high-performance adsorption materials but also provides crucial insights into the structural design and performance optimization of porous materials.
研究领域:
材料科学
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环境工程
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化学工程
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纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Today Chemistry
·
2024
·
IF 6.7
Zhuluni Fang,Yihan Liu,Jinteng Qi,Miao Yu,Yuhang Wang,Yunfeng Qiu,Zhuo Ma,Shaoqin Liu
Solar-driven interfacial water evaporation holds great promise for water purification and desalination, but challenges such as insufficient light absorption, suboptimal energy conversion, and microbial contamination hinder its practical applications. This study presents a novel Au@ZIF-8/Ti 3 C 2 T x alginate hydrogel, integrating nanocomposites into a three-dimensional hydrogel network to enhance both water transport and light-to-heat conversion. The incorporation of Au nanoparticles significantly improves light absorption, while the Schottky junction between ZIF-8 and Ti 3 C 2 T x promotes photocatalytic generation of reactive oxygen species (ROS), including superoxide radicals (O 2 − ) and singlet oxygen ( 1 O 2 ). This photocatalytic activity, combined with the photothermal effects of Ti 3 C 2 T x , leads to effective bacterial sterilization, achieving 99.54 % and 97.22 % antibacterial efficiency against E. coli and S. aureus , respectively. The hydrogel exhibits a high evaporation rate of 1.589 kg m −2 h −1 and demonstrates a 100 % steam sterilization rate against both bacterial strains under one sun illumination. These findings highlight the potential of the Au@ZIF-8/Ti 3 C 2 T x alginate hydrogel as a promising, efficient, and cost-effective sterilization strategy for various applications, including water purification, desalination, and disinfection in off-grid areas and specialized settings.
研究领域:
材料科学
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环境科学
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纳米技术
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水处理
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太阳能
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Guoliang Zhang,Cong Xue,Ruxangul Jamal,Tursun Abdiryim,Feng Xu,Qian Cheng
L-Tyrosine (L-Tyr) is one of the 21 essential amino acids for the human body. Its accurate detection is of great clinical and practical significance in monitoring, food quality and safety. Functional groups critically govern electrochemical sensor performance by mediating target adsorption. Conventional poly (3,4-ethylenedioxythiophene) (PEDOT)-based sensors face limited flexibility and active site accessibility. Amino-grafted PEDOT was developed by in situ growth on Ti 3 C 2 T X nanosheets, incorporating small-sized Au nanoparticles to create a highly conductive and active substrate for selective detection of L-Tyr. The resulting molecularly imprinted electrochemical sensor, fabricated on the PEDOT-CH 2 NH 2 /Ti 3 C 2 T X /Au NPs/GCE platform, exhibited enhanced catalytic activity and efficient L-Tyr enrichment. The combination of components improved electron transfer, MIP stability, and imprinting cavity accessibility. The sensor demonstrated a broad linear range (10 −6 –100 μM) with an ultralow detection limit (3.64 × 10 −6 μM), and exhibited excellent selectivity, reproducibility, and operational stability. Practical tests in milk matrices confirmed high recovery rates (96.65 %–101.35 %), showcasing its potential for use in complex food systems and it also has detection capabilities similar to those of standard methods. This work provides a sensitive and reliable strategy for amino acid monitoring in food, with significant applications in food safety assurance.
研究领域:
分析化学
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食品安全
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传感技术
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纳米材料
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电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Hao Xu,Shuai Liu,Zhiang Li,Fan Ding,Jie Liu,Weimin Wang,Kaikai Song,Ting Liu,Lina Hu
Solid polymer electrolytes (SPEs) have been considered the most promising separators for all-solid-state lithium metal batteries (ASSLMBs) due to their ease of processing and low cost. However, the practical applications of SPEs in ASSLMBs are limited by their low ionic conductivities and mechanical strength. Herein, we developed a three-dimensional (3D) interconnected MXene (Ti 3 C 2 T x ) network and Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) particles synergistically reinforced polyethylene oxide (PEO)-based SPE, where the association of Li + with ether-oxygen in PEO could be significantly weakened through the Lewis acid-base interactions between the electron-absorbing group (Ti–F, −O–) of Ti 3 C 2 T x and Li + . Besides, the TFSI − in lithium salts could be immobilized by hydrogen bonds from the Ti–OH of Ti 3 C 2 T x . The 3D interconnected Ti 3 C 2 T x network not only alleviated the agglomeration of inorganic fillers (LLZTO), but also improved the mechanical strength of composite solid electrolyte (CSE). Consequently, the assembled Li||CSE||Li symmetric battery showed excellent cycling stability at 35 ℃ (stable cycling over 3000 h at 0.1 mA cm −2 , 0.1 mAh cm −2 ) and −2 ℃ (stable cycling over 2500 h at 0.05 mA cm −2 , 0.05 mAh cm −2 ). Impressively, the LiFePO 4 ||CSE||Li battery showed a high discharge capacity of 145.3 mAh/g at 0.3 C after 300 cycles at 35 ℃. This rational structural design provided a new strategy for the preparation of high-performance solid-state electrolytes for lithium metal batteries.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Zhihu Pan,Xiaohong Ji
The developments in hydrogen evolution reaction (HER) and supercapacitor technologies for electrochemical energy storage and conversion have received considerable attention. Although MoS 2 is electrochemically active for both HER and supercapacitors, limited active sites, slow ionic transport, and poor conductivity lead to its poor capacitance and electrocatalytic activity . Herein, hierarchical Ti 3 C 2 T x /MoS 2 /Ti 3 C 2 T x @CC (TMT@CC) composites were well-designed as electrodes for both HER and supercapacitors. Flexible TMT@CC electrodes with an area as large as ∼ 80 cm 2 and optimal mass-loading of 17.9 mg cm −2 were achieved. The inner layer Ti 3 C 2 T x in the composites provides ideal nucleation sites for the growth of MoS 2 arrays, and the outermost Ti 3 C 2 T x effectively anchors the vertically arrayed MoS 2 . The hierarchically vertical structure provides strong interfacial coupling and shortens ion diffusion paths, leading to high stability and fast ion/electron transport kinetics. Due to such a synergistic effect, the flexible binder-free TMT@CC electrodes exhibited high areal capacitance (5.06 F cm −2 at 5 mA cm −2 ) for supercapacitors and low overpotential (119 mV versus RHE at 10 mA cm −2 ) for HER catalyst. Furthermore, a high energy density of 0.125 mWh cm −2 at a power density of 1.5 mW cm −2 has been achieved from the TMT@CC-based symmetric supercapacitor . Our strategy can be expanded to other vertically arrayed hierarchical structures as electrode materials of efficient HER and supercapacitors.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米技术
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Qiqi Wang,Changjun Mu,Ya'nan Yu,Xia Feng,Yang He,Li Chen
Current patients with chronic kidney disease (CKD) suffer from either accumulation of advanced glycation end products (AGEs) or inefficient clearance of the middle molecule uremic toxins, threatening their long-term survival rate. In particular, conventional hemodialysis membranes cannot prevent AGEs formation because of continuous oxidative stress from reactive oxygen species (ROS). Herein, a persistent ROS scavenging and efficient uremic toxin clearance of hemodialysis membrane is proposed by the in situ deposition of a gallic acid-Ti 3 C 2 T x MXene (GA-MXene) n multilayers through a self-assembly method, where n denotes the number of deposition layers. These hemodialysis membranes have a highly interconnecting composite laminate with tunable pore size. In the dialysis experiment, the (GA-MXene) 2 membrane with the vertical nano-slits shows the highest middle molecule uremic toxin clearance of 80.0% compared with state-of-the-art hemodialysis membranes, which has been approximately equal to the clearance of small molecule urea. Furthermore, GA conferring efficient ROS scavenging rate over dialysis treatment time allows anti-oxidative activities to inhibit AGEs’ formation. (GA-MXene) n multilayers enhanced the serum total antioxidant capacity and suppressed lipid peroxidation from oxidative damage. Ultimately, the (GA-MXene) n hemodialysis membranes provide excellent anticoagulant properties and cytocompatibility through the heparin-mimicking sulfonated Ti 3 C 2 T x MXene and biological activity of GA. This work facilitates the blood purification application of MXenes and opens up an avenue for developing functional multilayers for high-performance hemodialysis membranes and beyond.
研究领域:
材料科学
·
生物医学工程
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纳米技术
·
肾脏医学
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2021
·
IF 4.821
Yunfei Wang,Wenjie Sun,Yixiao Li,Xuming Zhuang,Chunyuan Tian,Feng Luan,Xiuli Fu
Human immunodeficiency virus (HIV) is still a significant global health concern. Hence, developing a rapid and sensitive method for the detection of HIV is important in early detection. In this paper, we focus on the preparation of a sensitive electrochemical luminescence (ECL) biosensor that uses Ti 3 C 2 T x modified ZIF-8 as an ECL emitter to detect HIV-1 protein. This ECL biosensor used 0.05 M K 2 S 2 O 8 as the co-reactant and conductive carbon black combined with magnetic nanoparticles as the quenching agent. Under the optimized experimental conditions, the relationship was linear in the range from 1 fM to 1 nM (R 2 = 0.993) and the detection limit was 0.3 fM (S/N = 3). Finally, we used the constructed Ti 3 C 2 T x /ZIF-8 nanocomposites to detect HIV-1 in real serum samples and obtained great recoveries. The results demonstrated that this biosensor, which not only exhibited improved electrical conductivity but also demonstrated an excellent ECL response, could be a promising candidate for HIV-1 detection.
研究领域:
生物传感器
·
分析化学
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材料科学
·
病毒学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）