CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Mengqian Li,Shengyuan Wang,Siwen Yang,Xiaoran He,Jiaxing Yang,Shuhao Zheng,Wen Luo,Haoran An
MXenes are considered ideal electrode materials. However, the cumbersome and poorly efficient preparation of few-layer MXenes, whereas the electrochemical performance of the more easily producible multi-layer MXenes is fundamentally constrained by severe interlayer stacking. In this work, the (002) facet orientation of multi-layer Ti 3 C 2 T x was modified via a solvothermal process, resulting in substantially enhanced electrochemical properties. The texture coefficients of (002) facet (TC (002) ) in multi-layer Ti 3 C 2 T x increases with increasing solvothermal temperature. Moreover, the specific capacitance was calculated to be approximately proportional to TC (002) , and HMX-180 reached a capacity of 310.2 F g −1 at a current density of 1 A g −1 . Density functional theory (DFT) calculations revealed that the (002) facets have the minimum adsorption energy for H + and a higher Fermi energy level, indicating that the (002) facets are more likely to be enriched with H + and exhibit higher electrical conductivity. These features promote the rapid transport of H + between the Ti 3 C 2 T x layers. Furthermore, multi-layer Ti 3 C 2 T x prepared via MILD method also undergoes (002) facet orientation and corresponding performance enhancement through this approach. This work provides a universal and scalable approach for fabricating high-performance MXene electrodes, which holds considerable promise for developing next-generation supercapacitors for practical applications in portable electronics and sustainable energy systems. This strategy also offers considerable potential for application in other energy storage systems, including metal-ion batteries, and catalytic devices.
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Binbin Sun,Qiang Wang,Yuelin Lu,Wei Fang,Zhenhuai Yang,Yuning Zhao,Cong Gu,Huan Liu,Zixin Zhang,Jie Bai
Two-dimensional materials, such as MXene (Ti 3 C 2 T x ), have recently garnered significant attention in the field of energy storage. However, their electrochemical performances are severely hindered by the tendency of their layered structures to restack. This study introduces an innovative strategy involving the in-situ polymerization of polypyrrole (PPy) microspheres on the surfaces of aramid nanofibers (ANFs) to form a stable PPy@ANFs core–shell structure. This structure serves as a conductive framework intercalated between Ti 3 C 2 T x nanosheets, producing an MXene/PPy@ANFs (MPA) aerogel with three-dimensional multidirectional conductive properties. The PPy@ANFs core–shell structure not only widens the ion transport pathways, but it also significantly inhibits the restacking of the Ti 3 C 2 T x layers. Additionally, the resulting interlayer spacing of the MXene effectively mitigates the swelling and pulverization of the PPy microspheres. This ternary synergistic effect endows the MPA 0.3 aerogel with a high specific capacitance of 404.9 F g −1 at 2 mV s −1 . Symmetric supercapacitors assembled with this material exhibit exceptional comprehensive performance, namely a specific capacitance of 169.84 F g −1 at 2 mV s −1 , a capacitance retention of 82 % at a high scan rate of 100 mV s −1 , and a capacity retention of 99.31 % after 10,000 cycles at a current density of 8 A g −1 . Furthermore, at a current density of 1 A g −1 , the device simultaneously achieves an energy density of 22.12 Wh kg −1 and a power density of 1280 W kg −1 . This work presents a novel three-dimensional structural design for MXene-based composites, providing valuable insights into their potential for advanced energy storage applications.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Ziheng Ye,Feihua Liu,Xiaoai Ye,Kaizheng Gao,Jingjing Luo,Xiangli Liu,Weiwei Zhao
Ti 3 C 2 T x MXene with outstanding physicochemical properties have shown huge potential in electromagnetic interference (EMI) shielding applications. However, the poor chemical stability and mechanical fragility have seriously hindered their practical use. Herein, we developed a novel pyrimidine-containing polyimide (PPI) and constructed Ti 3 C 2 T x /PPI (MP) composite films . The incorporation of PPI not only suppresses the oxidation of Ti 3 C 2 T x by forming Ti-N x interactions between the nitrogen-rich pyrimidine rings of PPI and the Ti centers of Ti 3 C 2 T x , but also enhances mechanical strength and durability of the composite film across a wide temperature range (-196–250 ℃). Compared with Ti 3 C 2 T x film, the MP film exhibits significantly improved oxidation resistance , which the EMI SE of MP film did not decrease after 14 days in 80 ℃/80 RH environment when the weight ratio of Ti 3 C 2 T x and PPI reaches 11:4. Merely 1.4 dB decrease in EMI SE of the MP film was revealed after 200,000 bending cycles with a radius of 2 mm, and the EMI SE remained virtually unchanged after bending in liquid N 2 . Moreover, the composite film demonstrates excellent thermal management properties, including rapid thermal response, efficient electrothermal conversion, excellent durability and stability. The combination of desirable EMI shielding ability, ultrahigh flexibility, superior stability and durability, as well as ideal thermal management performance gives this material excellent potential for various applications.
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Meiling Lian,Haoquan Wang,Liuxing Chen,Da Chen,Qi Yang,Xuezhi Qiao
Electrochemical sensing devices often suffer from biofouling due to nonspecific adsorption of biomolecules and microorganisms in complex biological matrices. To address this challenge, we developed an efficient antifouling and self-sterilizing sensing interface by grafting polyethylene glycol (PEG) onto two-dimensional Ti 3 C 2 T x MXene nanosheets for the accurate detection of cardiac troponin I (cTnI), a gold-standard biomarker for acute myocardial infarction (AMI). The Mn 2+ -intercalated Ti 3 C 2 T x (Mn-Ti 3 C 2 T x ) exhibited enhanced electrochemical activity in a three-electron oxygen reduction reaction (3e - ORR), enabling in situ self-sterilization by activating molecular oxygen to generate hydroxyl radicals (•OH), which demonstrated potent antibacterial effects against both Gram-negative and Gram-positive bacteria. Density functional theory calculations revealed that Mn doping in MXene significantly reduced the free energy barrier of *OOH intermediate, promoting H 2 O 2 formation and subsequent reduction to •OH. The PEGylated Mn-Ti 3 C 2 (PEG@Mn-Ti 3 C 2 T x ) composite combined the superior hydrophilicity of PEG for effective protein repulsion with the enhanced conductivity of Mn-Ti 3 C 2 T x , enabling sensitive biosensing. Critically, the fabricated biosensor demonstrated high specificity for cTnI against common interferents and achieved reliable detection in spiked serum samples. It exhibited a broad detection range from 0.1 pg mL -1 to 500 ng mL -1 with an ultralow limit of 0.03 pg mL -1 . This work presents a novel strategy for combating biofouling and paves the way for designing robust biosensors capable of accurate and long-term operation in clinically relevant environments, holding great promise for point-of-care diagnostics.
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2026
·Vol. 16
·期 13
·12165-12179
·
IF 6.1
Waqas Saeed,Ye Tian,Irshad Ahmad Mir,Baoji Miao,Amna Manzoor,Surjyakanta Rana,Xing Chen
Ammonia (NH3) detection at room temperature under varying humidity conditions is crucial for environmental monitoring, industrial safety, and healthcare. However, ammonia detection remains a challenge due to the lack of sensitivity and selectivity of current room temperature based sensors. In this context, Ti3C2Tx MXene and flower-like SnS2 composites were investigated for NH3 sensing. A comparative analysis of multilayered and few-layered nanohybrid composites demonstrated that the few-layered configuration displayed a markedly enhanced response to ammonia. Its larger surface area, higher electrical conductivity, and higher number of active sites contribute to its superior gas diffusion and charge transfer properties. The composite was further functionalized with Nafion (NF) to enhance sensitivity and selectivity under humid conditions. In an optimized NF-functionalized few-layered Ti3C2Tx/SnS2 sensor, we achieved a 12.11 response ratio towards 100 ppm NH3, with a response time of 42 s and a recovery time of 156 s, as well as excellent selectivity towards interfering gases. Reliability tests conducted in humid environments confirmed the excellent operational stability and durability of the proposed sensor. These experimental results demonstrate that the developed few-layered Ti3C2Tx/SnS2/NF nanohybrid composite provides a highly durable, sensitive, and selective platform for NH3 detection in practical applications at room temperature.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Changxin Yuan,Jinlong Li,Yan Zhuang,Dongxuan Guo,Shuang Meng,Dantong Zhang,Xue Yang,Guozhe Sui
Photocatalytic hydrogen evolution represents a crucial pathway for sustainable energy conversion, where constructing efficient heterojunctions and employing strategic doping are key to enhancing performance. Herein, a Ni-doped CdZnS/Ti 3 C 2 T x Schottky heterojunction was constructed via a hydrothermal method to enhance photocatalytic hydrogen evolution. Ni doping introduces sulfur vacancies that improve charge conductivity, while coupling with Ti 3 C 2 T x MXene forms a Schottky junction that directs interfacial electron transfer and suppresses recombination. Density functional theory (DFT) calculations confirm that sulfur vacancies and the Schottky barrier act synergistically to optimize charge dynamics, and that Ti 3 C 2 T x shifts the d-band center of Ni toward the Fermi level of the sample, promoting hydrogen desorption process. The optimized Ni-CdZnS/Ti 3 C 2 T x composite exhibits a high visible-light driven hydrogen evolution rate of 13.67 mmol g −1 h −1 — 3.73-folds that of pristine CdZnS — along with an apparent quantum efficiency (AQY) of 20.15% at 365 nm, while maintaining favorable stability. This work demonstrates an effective strategy integrating defect engineering and Schottky junction design for efficient solar hydrogen evolution.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Chao Xie,Weikai. Kong,Zijian Wu,Dandan Yang,Yahui Li,Yulian Li,Jiandong Lu,Junyong He,Peidong Hong,Lingtao Kong
The filtration-assembled catalytic composite membrane enable high-density catalyst loading with improved exposure of active sites. Given the cost efficiency of iron-based catalysts, inhere, a high-density Fe 3 O 4 /Ti 3 C 2 T x @PVDF catalytic composite membrane was successfully fabricated via filtration-assembled anchoring Fe 3 O 4 nanoparticles to the superior surface of Ti 3 C 2 T x . The structural and functional properties of the composite membrane were systematically elucidated through comprehensive characterization. Leveraging the outstanding catalytic performance of Fe 3 O 4 /Ti 3 C 2 T x , efficient degradation of acetaminophen (ACT) was achieved. In the ∙OH dominated M-5 + PMS system, 93.2% ACT removal was attained within 60 min. The degradation pathways and underlying mechanisms were thoroughly investigated. Furthermore, a novel MBR + CMR system was developed for advanced treatment of pharmaceutical wastewater, significantly enhancing the removal of pollutants from secondary effluent. The hybrid system exhibited remarkable treatment efficiencies, with 91.7% TOC removal and 99.7% NH 4 + -N removal. Finally, future perspectives on scalable membrane fabrication, potential application domains, and technology integration are discussed.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Cuizhen Yang,Tianyi Wang,Hao Yuan,Chenghao Yao,Wei Su,Guoqiang Liu,Haiyan He,Dongming Liu,Huajie Huang
A facile, scalable wet-chemical strategy is developed for in-situ Pd nanoclusters anchored on ionic liquid (IL)-modified Ti 3 C 2 T x nanosheets. • IL modification tunes Ti 3 C 2 T x surface charge, improves its stability and antioxidant capacity, and strengthens electrostatic interaction with Pd precursors to form active grain boundaries. • Pd/IL-Ti 3 C 2 T x shows superior FAOR & MOR electrocatalytic performance: high activity, good CO-poisoning resistance and favorable long-term stability. • Theoretical simulations confirm IL - Ti 3 C 2 T x modulates Pd electronic structure, weakens CO adsorption, and enables the enhanced electrocatalytic activity. Both direct formic acid fuel cell (DFAFC) and direct methanol fuel cell (DMFC) with high energy-conversion efficiency have garnered considerable attention against the backdrop of continuously increasing energy demand, while the actual performance largely depends on the catalytic properties of their anode catalysts. In this work, we present a facile and scalable wet-chemical strategy for synthesizing palladium (Pd) nanoclusters in situ anchored on ionic liquid (IL)-modified two-dimensional Ti 3 C 2 T x MXene nanosheets, which are capable to serve as highly efficient anode catalysts for both formic acid and methanol electrooxidation. The incorporation of IL not only effectively tune the surface charge characteristics of Ti 3 C 2 T x nanosheets to enhance their structural stability and antioxidant capacity, but also strengthens the electrostatic interactions between Pd species and substrate to induce the formation of catalytically active grain boundary sites. As a result, the as-obtained Pd/IL-Ti 3 C 2 T x nanostructure exhibits excellent electrocatalytic performance for both formic acid and methanol oxidation, including large electrochemically active surface areas, high mass/specific activities, strong CO resistance, and dependable long-term stability, which far outperform that of conventional Pd catalysts supported on carbon black, carbon nanotubes, reduced graphene oxide, and pristine Ti 3 C 2 T x substrates. Theoretical simulations further confirm that the stable configuration and optimized electronic structure of Pd nanoclusters on Ti 3 C 2 T ₓ weaken their CO adsorption ability relative to Pd nanoparticles; this provides the foundation for their dramatically enhanced and sustainable electrocatalytic performance. A facile and scalable wet-chemical strategy is developed to synthesize Pd nanoclusters in situ anchored on ionic liquid (IL)-modified Ti 3 C 2 T ₓ nanosheets. The IL modification enhances the structural stability and antioxidant capacity of the Ti 3 C 2 T ₓ support while promoting the formation of catalytically active grain boundary sites via strengthened electrostatic interactions. The resulting Pd/IL-Ti 3 C 2 T ₓ hybrid exhibits outstanding electrocatalytic performance for both formic acid and methanol oxidation, including high mass/specific activities, superior CO tolerance, and excellent long-term stability. Theoretical simulations reveal that the optimized electronic structure of Pd nanoclusters weakens CO adsorption, underpinning the enhanced and sustainable performance. Download: Download high-res image (133KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
ACS Sensors
·
2026
·
IF 10.9
Peng Xu,Yanlei Guo,Xin Lv,Shuting Wei,Dan Yang,Renquan Guan,Yuxin Wang,Yingmin Teng,Aiceng Li,Huaqiao Tan,Zhongling Lang,Zheng Lou,Lili Wang,Zhao Zhao
The necessity for high-efficiency, low-power room-temperature (RT) ammonia (NH3) sensors is particularly acute in environmental monitoring, industrial safety, and medical diagnostics. However, conventional chemiresistive sensors frequently require elevated temperatures to initiate reactions, leading to high energy consumption and potential safety risks. Inspired by plant photosynthesis, this paper successfully designs a ternary S-scheme heterojunction for a photo-activated RT NH3 sensor. The design effectively mimics the efficient charge transfer process in photosynthesis, thereby significantly promoting the separation and migration of photogenerated carriers and enhancing the sensing performance. Experimental results demonstrate exceptional performance under illumination: a high response value of 1679% (representing a 20-fold improvement over the dark state), rapid response and recovery times of 2.1 s and 1.9 s, respectively, along with outstanding selectivity, excellent stability, and a detection limit as low as 17 ppb. This work demonstrates a novel, efficient RT photo-activated NH3 sensor and provides innovative insights into designing biomimetic, smart gas-sensing materials and devices.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
·
2026
·
IF 10.7
Chong Li,Chunjie Wu,Yufei Xiao,Siqi Zhu,Yuhan Li,Kunyi Tong,Chenhao Zhang,Hui Li
Two-dimensional MXene nanosheets have attracted extensive attention due to their exceptional physicochemical properties. However, the conventional synthesis of MXenes relies heavily on hazardous fluoride-based etchants, causing severe environmental and safety risks. Herein, we report a clean, fluorine-free, and sustainable strategy for synthesizing oxygen-terminated Ti 3 C 2 T x MXene (Ff-Ti 3 C 2 T x ) via a novel chelation-assisted alkaline etching approach. By synergistically combining tetramethylammonium hydroxide with ethylenediaminetetraacetic acid, we successfully overcome the intrinsic aluminum-passivation bottleneck that severely restricts the etching efficiency of conventional pure alkaline systems. This dual-agent chelation system not only enables the controlled and efficient delamination of Ti 3 AlC 2 into monolayer Ti 3 C 2 T x nanosheets under extremely mild conditions but also delivers a record-high yield of 40%, representing a 60% improvement over existing fluorine-free methods. The resulting Ff-Ti 3 C 2 T x exhibits a highly hydrophilic, oxygen-rich surface (–OH, –O), which inherently enhances its electrochemical activity and light-harvesting performance. As an environmental sensor, it achieves ultrasensitive detection of p -nitrophenol with a low detection limit of 0.055 μM and a high sensitivity of 3.16 μA μM −1 cm −2 . Moreover, Ff-Ti 3 C 2 T x demonstrates exceptional near-infrared photothermal performance, with a mass extinction coefficient of 21.8 L g −1 cm −1 at 808 nm and a photothermal conversion efficiency of 42.1%. This work provides a scalable, environmentally benign, and high-yielding pathway for fluorine-free production of MXene and establishes Ff-Ti 3 C 2 T x as a versatile platform for next-generation environmental monitoring and sustainable energy applications.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Ya Xiao,Chengzheng Men,Bingxian Chu,Zuzeng Qin,Hongbing Ji,Jianhua Chen,Tongming Su
Graphitic carbon nitride (g-C 3 N 4 ) is regarded as a promising photocatalyst for photocatalytic CO 2 reduction into valuable solar fuels. In this work, Cu-Ti 3 C 2 T x was used as efficient cocatalysts to enhance the photocatalytic performance of g-C 3 N 4 . The tight interface between Cu-Ti 3 C 2 T x and g-C 3 N 4 significantly promote the separation of photogenerated electrons and holes. In addition, the Cu and the Ti 3 C 2 T x can act as the fast transport channels for the photogenerated electrons, and the interface between the Cu and Ti 3 C 2 T x can act as the active sites for the adsorption and activation of CO 2 . The optimized Cu-Ti 3 C 2 T x /g-C 3 N 4 exhibited the highest photocatalytic CO 2 reduction performance with the yield of CO and CH 4 reached 49.02 and 3.6 μmol·g −1 , respectively, which was 9.0 and 9.2 times than that of pristine g-C 3 N 4 . Moreover, the optimized Cu-Ti 3 C 2 T x /g-C 3 N 4 photocatalyst maintained satisfactory stability. This work will offer new insight into modulating g-C 3 N 4 with an MXene-metal-based cocatalyst for photocatalytic CO 2 reduction.
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Qingqing Li,Tianmeng Zhang,Zhixiang Dai,Fangyan Su,Xiangwei Xia,Ping Dong,Jianfeng Zhang
The demand to address issues such as drinking water safety and industrial fouling caused by high-hardness ions has still emphasized the development of advanced membrane materials. In this study, through a maneuverable amide-cross-linking strategy, a new positively-charged polyamide (PA) nanofiltration membrane was developed for the first time by incorporating amino-functionalized Ti 3 C 2 T x nanoparticles (Ti 3 C 2 T x -NH 2 , TN). In addition to the induced electropositivity, the hydrophilicity of the as-obtained PA-TN membrane was also elevated with a maintained nodular structure by tailoring the interfacial polymerization reaction process of piperazine (PIP) with trimesoyl chloride (TMC). Therefore, the newly developed PA-TN membrane exhibited both superhigh rejection of Ca 2+ and Mg 2+ over 96%, and the flux increased 2–3 times even for the salinity solutions than many similar NF membranes reported in literature. Furthermore, the enhanced long-term stability and fouling resistance of the PA-TN membrane was also validated due to its new organic-inorganic structural coupling and improved hydrophilicity. This work provides a new strategy for the preparation of organic-inorganic hybrid positively charged nanofiltration membranes for water softening treatment.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）