MOLECULES
·
2025
·Vol. 30
·期 11
·2343
·
IF 4.6
Xinyue Li,Yahui Song,Yiming Huang,Jihui Zhang,Siyu Wu,Wentao Zhang,Jin Wang,Xian Zhang
MoS2has emerged as a highly promising catalyst for the hydrogen evolution reaction (HER) owing to its exceptional catalytic properties. However, there is a pressing need to further enhance its reactivity and integrate oxygen evolution reaction (OER) capabilities to facilitate its industrial implementation. In this context, a dual-metal doping approach presents a straightforward and effective strategy to achieve superior catalytic performance. Systematic characterization and electrochemical evaluations reveal that the synergistic effects of Co and Fe doping significantly enhance both HER and OER activities, demonstrating remarkable potential for practical applications in energy conversion and storage systems. The unique flower-like architecture of the material endows it with a substantially enlarged surface area, which significantly increases the exposure of active sites and facilitates enhanced catalytic activity. Specifically, it achieves the low overpotentials of −127 and 292 mV at 10 mA cm−2for HER and OER in alkaline media, respectively, and demonstrates excellent stability over a 10 h test. This research provides valuable insights into the development of advanced materials capable of efficiently performing both HER and OER processes, paving the way for potential applications in sustainable energy technologies.
研究领域:
材料科学
·
电催化
·
能源转换与存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2021
·Vol. 19
·期 1
·1-16
·
IF 10.435
Zhao Jiayan,Wu Hang,Zhao Jiulong,Yin Yichen,Zhang Zhilun,Wang Shige,Lin Kun
Owing to the hypoxia status of the tumor, the reactive oxygen species (ROS) production during photodynamic therapy (PDT) of the tumor is less efficient. Herein, a facile method which involves the synthesis of Mg–Mn–Al layered double hydroxides (LDH) clay with MoS2 doping in the surface and anionic layer space of LDH was presented, to integrate the photo-thermal effect of MoS2 and imaging and catalytic functions of Mg–Mn–Al LDH. The designed LDH-MoS2 (LMM) clay composite was further surface-coated with bovine serum albumin (BSA) to maintain the colloidal stability of LMM in physiological environment. A photosensitizer, chlorin e6 (Ce6), was absorbed at the surface and anionic layer space of LMM@BSA. In the LMM formulation, the magnetic resonance imaging of Mg–Mn–Al LDH was enhanced thanks to the reduced and acid microenvironment of the tumor. Notably, the ROS production and PDT efficiency of Ce6 were significantly improved, because LMM@BSA could catalyze the decomposing of the overexpressed H2O2 in tumors to produce oxygen. The biocompatible LMM@BSA that played the synergism with tumor microenvironment is a promising candidate for the effective treatment of cancer.
研究领域:
生物医学工程
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纳米医学
·
肿瘤治疗学
✓ 已验证
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Yi Zheng,Qiuya Zhang,Haoran Chi,Yize Liu,Hongwei Ren
As a typical pollutant in petrochemical wastewater, naphthenic acids are highly ecotoxic and difficult to biodegrade due to its robust structure. The advanced oxidation process has always been the research hotspot for naphthenic acids degradation and removal. In this work, with low cost and biomass fructose as raw material, Si-doped carbon quantum dots (Si-CQDs) and its composite material (MoS 2 /Si-CQDs) of Flower-like molybdenum disulfide (Flower-like MoS 2 ) were targeted synthesized by hydrothermal method, and characterized by Transmission electron microscope, Scanning electron microscope, X-Ray diffraction, UV-Vis spectroscopy, and Raman spectrum. To study the activation of prepared materials in naphthenic acid oxidative degradation, the influencing factors of kinds of materials, reaction temperature, the dosage of catalyst and persulfate were all explored systematically. The experiments showed that the naphthenic acid degradation rate of MoS 2 /Si-CQDs@NaPS system could reach more than 99 % in 120 min, and the relationship between the naphthenic acid degradation rate and the reaction temperature was in accordance with the quasi-primary kinetic equation. In mechanistic studies, the role of free radical and non-free radical pathways in oxidative degradation was verified. After five reuse cycles, the catalyst can still achieve a degradation rate of over 80 %. Finally, the experiment also tested the effectiveness of MoS 2 /Si-CQDs@NaPS system in real naphthenic acids wastewater, and the production cost of its removal of naphthenic acids was economically analyzed, showing that MoS 2 /Si-CQDs is a promising composite with stability and cost-effectiveness, and provides a new material for naphthenic acid degradation that can achieve a dual degradation pathway.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Fuling Li,Changgeng Li,Quan Xie,Xuelong Chen,Xiu-Zhi Tang,Tong Guo
Elegant material construction to realize high-efficiency microwave absorption with low filler loading is in strong demand yet remains challenging. Here we combine a self-assembly method followed by pyrolysis to fabricate core-shell Co 9 S 8 @MoS 2 nanocubes, which were uniformly anchored on reduced graphene oxide nanosheets (A-G/Co 9 S 8 @MoS 2 ) to form hierarchical heterostructures . The heterostructure was deliberately designated via chemical etching of in situ formed Co 9 S 8 derived from ZIF-67 and decoration of flower-like MoS 2 nanosheets. Owing to its synergic effect in compositions and well-designed heterostructure, the product A-G/Co 9 S 8 @MoS 2 exhibits excellent microwave absorption performance with low loading content. A minimum reflection loss of − 55.13 dB and effective absorption bandwidth of 6.61 GHz with filler loading of only 8 wt% was achieved, contributed by the good impedance matching and dual loss mechanism. This work provides a new pathway for designing low-filler loading high-performance microwave absorption materials.
研究领域:
材料科学
·
电磁学
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Yilin Wang,Qiming Liu,Yirui Liu,LYU Shuying
SnS 2 is considered a potential anode material for sodium-ion batteries (SIBs) due to its high theoretical capacity, abundant resources and non-toxic properties. However, the low Na + diffusion kinetics and large volume expansion of SnS 2 hinder further development and application. Hence, the heterostructured MoS 2 /SnS 2 /NC nanospheres are synthetized through a facile hydrothermal reaction . By coating SnS 2 on MoS 2 templates, the heterojunction composite MoS 2 /SnS 2 /NC combines the advantages of the highly stable nanosphere structure of MoS 2 and the high theoretical capacity of SnS 2 . In conclusion, it delivers a high specific capacity of 603 mAh g −1 at 10 A g −1 after 2000 cycles and excellent rate performance of 750 mAh g −1 at 0.1 A g −1 . Furthermore, the full-battery of MoS 2 /SnS 2 /NC= |Na 3 V 2 (PO 4 ) 3 exhibits a great capacity of 69.8 mAh g −1 at 100 mA g −1 after 100 cycles. The excellent electrochemical performance of the heterojunction material proves it to be an extraordinary anode material for SIBs.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Zipan Jiao,Xinglan Zhou,Junjie Yu,Xiaoyan Lan,Yi Shi,Jitong Li,Bingxin Liu,Yongcheng Li,Guilin Chen,Riming Hu,Peng Zhang,Benhua Xu
This research investigates the resistive switching (RS) properties of resistive random-access memory (RRAM) devices incorporating MoS2 quantum dots (QDs) and MoS2 nanosheets. The analysis reveals that reducing the size of MoS2 nanosheets to the size of QDs enhances the bandgap, surface–volume ratio, and the number of edge states, thereby providing additional electron trapping sites for the formation and rupture of conductive filaments (CFs) in RRAM devices. The Al/MoS2 QDs–PVA/ITO/glass devices exhibit enhanced switching ratios and memory windows in comparison to RRAM devices based on MoS2 nanosheets. The enhanced RS performance of the MoS2 QDs can be attributed to their ultra-small size, which enables the concentration of the surrounding electric field and a higher density of sulfur vacancies that facilitate the formation of CFs. However, it is important to highlight that high-temperature RS performance tests indicate a decline in device performance as the temperature increases. The findings presented herein demonstrate that the utilization of MoS2 QDs provides a novel avenue for significantly enhancing the data storage capacity of MoS2-based RRAM devices.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Pei Yu,Fengting Luo,Shijian Chen
Rational designing Mo-based heterojunction catalysts as hydrogen evolution catalysts is seriously significant for the widespread utilization of hydrogen energy. Here, the ingenious hierarchical construction of MoP 2 /MoS 2 nanowires was delivered with high conductivity of porous MoP 2 and abundant active sites of defect-rich MoS 2 . Under synergistic effect of two materials, this catalyst achieves a dramatically optimized electronic structure to boost hydrogen evolution in all-pH range. The optimal MoP 2 /MoS 2 /CC nanoreactor showed overpotentials of 47.11, 60.16, and 89.83 mV to drive −10 mA cm −2 and Tafel slopes of 51.69, 52.04, and 73.79 mV dec −1 in acidic, alkaline, and neutral media, respectively. This finding may provide an effective approach for elevating the pH-universal electrocatalytic performance in order to achieve industrial hydrogen evolution.
研究领域:
材料科学
·
电化学
·
催化
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Benlong Wei,Zhuannian Liu
Hybrid capacitive deionization (HCDI) is an innovative CDI technology that outperforms conventional CDI concerning desalination capability and charge efficiency. However, underutilized cathodes or anodes and mismatched kinetic behavior remain unsatisfactory given the imbalanced device architecture consisting of the capacitor and Faraday electrodes. Herein, we proposed a pseudo-capacitive behaviors induced dual-ion selective deionization (Di-CDI) strategy where molybdenum disulfide/polypyrrole (MoS 2 /PPy) acted as Na + intercalation cathode, and Ag-coated polyaniline-modified activated carbon (Ag@PANI/AC) served as Cl − trapping anode. In this system, the hollow PPy nanotube as the core is anchored by ultrathin MoS 2 nanoflakes, connecting loose MoS 2 nanoflowers to form a 3D flower-chain network, which holds convenient electron transfer routes and fast charge transport channels, facilitating accelerated ion diffusion process. Besides, Ag@PANI/AC was synthesized by modifying Ag particles on a 3D electron conduction substrate constructed by coupling PANI and AC, where Ag is responsible for the conversion reaction with Cl − to create AgCl. The conduction matrix compensates for the low conductivity of AgCl, enabling fast adsorption kinetics. As expected, the assembled Di-CDI system MoS 2 /PPy//Ag@PANI/AC delivers an excellent adsorption capacity of 25.1 mg g -1 , outstanding desalination rate (5.88 mg g -1 min -1 ), superior cycle stability (91.5% retention rate), and promoted charge efficiency of 56.2%, validating that this strategy supplies a viable way to achieve more energy-efficient CDI.
研究领域:
材料科学
·
环境科学
·
电化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Likang Fu,Wenqi Xiong,Qiming Liu,Shuyun Wan,Chenxia Kang,Gaofeng Li,Jun Chu,Yucheng Chen,Shengjun Yuan
Considering the superior performances of MOF-based and MoS 2 -based materials, a flower-like FeS/MoS 2 composite is synthetized using MIL-100(Fe) as a precursor. Electronic density of states and band structure are simulated by density functional theory (DFT) calculations, which prove that FeS/MoS 2 heterostructure exhibits metallic behavior. Unique structure and powerful hetero-interface synergistic effect of FeS/MoS 2 is conducive to improve the stability of sodium-ion batteries (SIBs). It provides reversible capacities of 464 and 365 mA h g −1 at 0.1 and 1.0 A g −1 . When the current density increases to 5 A g −1 , FeS/MoS 2 delivers a high capacity of 325 mA h g −1 with a capacity retention rate (71.1%). Moreover, it can maintain a stable specific capacity of 331 mA h g −1 at 2.0 A g −1 after 200 cycles. Adsorption energy calculated by DFT indicates that more Na atoms may be trapped on the top of Mo atom between FeS and MoS 2 layers. This study may stimulate the interesting of multivariate-MOFs/ covalent organic frameworks (COFs) composite emerging two-dimensional materials and facilitate the application of composite electrode in high-performance SIBs.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2017
·
IF 5.401
Bobin Xu,Yingying Su,Li Li,Rui Liu,Yi Lv
Novel fluorescent thioglycollic acid (TGA) surface-functionalized single-layered thickness structured MoS 2 nanosheets were purposely synthesized by a facile one-step hydrothermal treatment of using molybdenyl acetylacetonate, TGA and sodium sulfide as precursors. During the process of synthesis, we subtly solved the problem of the poor water solubility of the precursor molybdenyl acetylacetonate, and obtained thiolated single-layer MoS 2 nanosheet (TGA-MoS 2 ) with excellent water solubility and stable fluorescence property. The fluorescence of TGA-modified MoS 2 nanosheets was significantly suppressed in the presence of dopamine (DA), and a simple sensing system for highly selective, fast, direct detection of dopamine was established. Meanwhile, the present methodology has a wide detection range of 0.05 μΜ to 20 μΜ, a comparable detection limit of 27 nM and an extremely short response time of 3 min. To understand the fast response behavior, we tried effort to explain the interaction mechanisms between TGA-MoS 2 nanosheets and the quencher DA. Further research suggests that the possible mechanism might be the charge transfer (CT) by the stacking of MoS 2 layers through C O⋯H O hydrogen boding interaction, providing a fast fluorescence sensing platform for DA determination in urine and serum sample.
研究领域:
材料科学
·
分析化学
·
生物医学工程
✓ 已验证
DOI
高影响因子
Journal of Cleaner Production
·
2023
·
IF 11.1
Bingjie Huo,Jingxue Wang,Zichen Wang,Xiaowen Zhang,Jingwei Yang,Yinglong Wang,Jianguang Qi,Wei Ma,Fanqing Meng
E-MoS 2 /PVDF piezoelectric microcapsules with superior piezocatalytic performance were synthesized by coupling of expanded MoS 2 (E-MoS 2 ) and polyvinylidene fluoride (PVDF). The bubble-driven piezocatalysis process was proposed for the first time, using as-prepared E-MoS 2 /PVDF microcapsules as piezocatalyst for the degradation of antibiotics. Results showed that the degradation efficiency of tetracycline (TC), chlortetracycline (CH), and ofloxacin (OFL) in the E-MoS 2 /PVDF microcapsules solution was 91.88%, 85.48% and 96.84% in 60 min, respectively. After 5 times of recycling, the degradation rate of TC still reaches more than 73%. Importantly, the energy consumption of this bubble-driven piezocatalysis process (76.00 kwh −3 order −1 ) was only 6.43% of ultrasonic processes. In addition, the study of the degradation mechanism found that the bubble-driven stimulated the generation of more 1 O 2 , O 2 − while increasing the content of dissolved oxygen in the water, which promoted the piezocatalytic degradation. The possible degradation paths were obtained, and the toxicity migration during the degradation of tetracycline was evaluated. The bubble-driven method provides a direction for reducing energy consumption and supplementing the oxygen consumption of degradation in wastewater pollutant treatment.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2017
·
IF 3.387
Jiangtao Zhao,Peng Zhang,Jiajie Fan,Junhua Hu,Guosheng Shao
Advanced materials for photoelectrochemical H 2 production are important to the field of renewable energy. Despite great efforts have been made, the present challenge in materials science is to explore highly active photocatalysts for splitting of water at low cost. In this work, we report a new composite material consisting of 2D layered MoS 2 nanosheets grown on the presence of TiO 2 /WO 3 nanofibers (TW) as a high-performance photocatalyst for H 2 evolution. This composite material was prepared by a two-step simple process of electrospinning and hydrothermal. We found that the as-prepared TiO 2 /WO 3 @MoS 2 (TWM) hybrid exhibited superior photocatalytic activity in the hydrogen evolution reaction (HER) even without the noble metal-cocatalyst. Importantly, the TiO 2 /WO 3 @MoS 2 heterostructure with 60 wt% of MoS 2 exhibits the highest hydrogen production rate. This great improvement is attributed to the positive synergetic effect between the WO 3 and MoS 2 components in this hybrid cocatalyst, which serve as hole collector and electron collector, respectively. Moreover, the effective charge separation was directly proved by ultraviolet photoelectron spectroscopy, electrochemical impedance spectroscopy, and photocurrent analysis.
研究领域:
材料科学
·
可再生能源
·
光电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）