Journal of Energy Chemistry
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2025
·
IF 14.9
Guanghui Zhang,Xin Meng,Hao Wang,Zhiqun Wang,Hui Gao,Mingrui Wang,Chunshan Song,Xinwen Guo
The catalytic hydrogenation of carbon dioxide (CO 2 ) to methanol (CH 3 OH) represents a promising strategy for mitigating carbon emissions and closing the carbon cycle. This study demonstrates that the incorporation of Cu into MoS 2 catalysts significantly enhances methanol selectivity and productivity. Through a combination of transmission electron microscope, X-ray diffraction, Raman, electron paramagnetic resonance, X-ray photoelectron spectroscopy, diffuse reflectance Infrared Fourier transform spectroscopy, X-ray absorption spectroscopy, temperature-programmed desorption, and kinetic analysis, we reveal that Cu modifies edge sulfur vacancies, thereby suppressing methane formation and promoting methanol synthesis. At 220 °C and 5 MPa, the 2%Cu/MoS 2 catalyst achieves 85.5% selectivity toward CH 3 OH, and the methanol formation rate reaches 7.88 mmol g -1 cat h -1 (0.256 mmol m - 2 MoS 2 h -1 ), representing the highest performance among MoS 2 -based catalysts under comparable conditions. This work provides an efficient and potentially scalable approach for designing advanced MoS 2 -based catalysts for CO 2 hydrogenation.
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RSC Advances
·
2025
·Vol. 15
·期 45
·38069-38081
·
IF 4.6
Mingmin Bai,Wenyuan Guo,Yiyang Zhang,Ruiqiang Yang,Weixin Li
A novel multifunctional carbon-modified MoS2 material (C-W-D-MoS2-x) was synthesized through a solvothermal method, exhibiting expanded interlayer spacing, a large surface area (∼47.03 m2 g−1), and abundant exposed sulfur (S) active sites that enabled efficient adsorption of Hg2+ from wastewater. Among the prepared variants, C-W-D-MoS2-0.03 showed the highest adsorption performance, achieving an exceptional distribution coefficient (Kd) of 2.0 × 105 mL g−1. The adsorption kinetics were best described by the pseudo-second-order model, while the adsorption isotherms were well-fitted to the Langmuir model, with a maximum adsorption capacity (qm) of 1974.0 mg g−1. This remarkable adsorption capability of C-W-D-MoS2-0.03 can be attributed to the synergistic effect of carbon functional groups and the high density of S active sites. Furthermore, an alumina inorganic membrane functionalized with C-W-D-MoS2-0.03 was successfully assembled into a device, demonstrating a dynamic removal process that reduced 50 mg L−1 of Hg2+ to below 0.1 mg L−1.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2024
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IF 4.3
Xin Liu,Shiyue Niu,Bin Yang,Jia Liu,Fengming Zhang,Yuting Wang,Shuyun Bi
An efficient Surface-enhanced Raman scattering (SERS) method for the detection of cysteamine hydrochloride (CSH) was developed by synthesizing a composite substrate comprising silver nanoparticles (AgNPs) functionalized with MoS 2 and β -cyclodextrin ( β -CD). The enhanced Raman signals of CSH by β -CD/MoS 2 /AgNPs substrate were the contribution of electromagnetic enhancement (EM) as well as chemical enhancement (CM), and the enhancement factor (EF) can reach up to 3.11 × 10 6 (peak at 633 cm −1 ). Various instrumental techniques were used to characterize the substrate, such as X-ray diffraction (XRD), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM) and ultraviolet visible (UV–vis). The binding of β -CD/MoS 2 /AgNPs and CSH was confirmed by UV–vis and Fourier transform infrared (FT-IR). The optimal experimental conditions were determined by single factor experiments as well as response surface model. The influences of different metal ions and analogous drugs on the detection of CSH were investigated. Under optimum conditions, a good linear correlation (R = 0.9997) was established for CSH in the range of 10.00–1000.00 nmol/L, and the limit of detection (LOD) was as low as 0.78 nmol/L (S/N = 3). The contents of CSH in meat samples were detected. The recovery was 96.6–103.1 %, and the relative standard deviation (RSD) of the measurement was 0.7–3.9 % ( n = 7).
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ANALYTICA CHIMICA ACTA
·
2025
·
IF 6
Zongmei Zheng,Mingyang Wang,Jinlong Yuan,Junchong Liu,Haipeng Yu,Zhonghuang Yang,Wanjian Liu,Aihua Liu
It is crucial to timely and accurately identify the causative virus for early treatment and urgent prevention. Viral antigen detection can identify those people who are most likely at risk of spreading the disease, but most based on antibodies with limited stability and sensitivity. Peptides offer several advantages over antibodies, such as low cost, smaller size and good stability. The development of electrochemical immunoassay using specific peptide probes have the merits of good sensitivity and selectivity as well as good stability. Herein we report an amperometric immunosensor using peptides as capture probe and recognition probe. The molecular docking suggests that the two peptides of Pi (sequence: NFWISPKLAFALGGGKKKSC) and FK11 (sequence: WFLNDSELISML), bioscreened from phage display, bind to N-terminal domain of SARS-CoV-2 spike protein (SP). The peptide Pi is assembled on MoS 2 @AuNPs modified electrode to capture SARS-CoV-2 SP, which is recognized by peptide FK11-displayed phage to form Pi/SARS-CoV-2 SP/FK11-phage sandwich. Then anti-M13 phage conjugated horseradish peroxidase (HRP) (anti M13-HRP) was introduced to recognize the phage capsid protein pVIII to form M13 phage/anti M13-HRP to enrich thousands of HRP, which can further electrochemically catalyze H 2 O 2 reduction at highly conductive MoS 2 @AuNPs at − 0.35 V. Then amperometric immunosensor was constructed with linear range of 0.1−5000 pg/mL SARS-CoV-2 SP and detection limit of 0.074 pg/mL. The sensor also has good selectivity, batch reproducibility and stability, capable of detecting down to 10 transducing units/mL SARS-CoV-2 pseudoviruses. This work represents the first example of dual-peptide probes based sandwich-type electrochemical immunosensor integrated with dual signal amplification, which may provide a cost-effective assay platform in detecting real SARS-CoV-2 viruses for early diagnosis. The flexible and modular strategy can be extended to develop other type biosensors for a wide range of applications.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
·
IF 8.3
Sana Nazeer,Syed Ejaz Hussain,Junjie Qi
Semiconducting 2H-phase MoS 2 often performs poorly in the hydrogen evolution process and has low conductivity. Se increases stability, electrical conductivity, and catalytic activity when added to MoS 2 . Using carbon cloth as the substrate and several sulfur sources, such as Thioacetamide, L-cysteine, and Thiourea, this study developed an effective hydrothermal synthesis process to produce a MoS 2(1-x) Se 2x ternary alloy. When used as an electrocatalyst for HER, the TAA-MoSSe/CC alloy with an S/Se balance of 1:1 reaches at overpotential of 120 mV at the conventional current density of about 10 mA/cm 2 , whereas the observed Tafel slope value is 41 mV/dec. Furthermore, the strength of the Ternary alloys covered by the present investigation is enhanced by testing for air stability and durability. According to the characteristics of these ternary alloys, the creation of MoS 2(1-x) Se 2x depends critically on the temperature at which the sulfur precursor decomposes. Improved HER catalytic performance results from the rapid release of sulfur ions from sulfur precursors, which decompose at lower temperatures. These sulfur ions replace more Se ions in MoS 2(1-x) Se 2x .
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Journal of Energy Storage
·
2025
·
IF 9.8
Zhihua Zhang,Jing Zhu,Man Zhang,Guiting Xie,Dequan Huang,Hongqiang Wang,Kui Liu,Fenghua Zheng,Qingyu Li,Qichang Pan
Molybdenum disulfide (MoS 2 ) has attracted significant attention as a prospective anode material for sodium ion batteries (SIBs). However, the poor rate capability and cycling performance induced by the slow electrochemical reaction kinetics and huge volume change during sodiation/desodiation process. Herein, a sponge-like structure of MoS 2 /NC composite is designed and evaluated as anode materials for SIBs. In such architecture, the sponge-like structure with rich porous structure can not only ensure fast Na + diffusion, but also provide enough space to mitigation the volume change during repeated sodiation/desodiation process. Accordingly, the obtained S-MoS 2 /NC composite presents excellent long-term cycling performance (345 mA h g −1 after 3000 cycles at 5 A g −1 ) and outstanding rate capability (464 mA h g −1 at 10 A g −1 ) for SIBs. Furthermore, the full cell assembled with Na 3 V 2 (PO 4 ) 3 @C cathode and S-MoS 2 /NC anode delivers outstanding cycling performance, a high capacity of 285 mA h g −1 is maintained after 950 cycles at 1.0 A g −1 .
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Advanced Materials Interfaces
·
2020
·Vol. 7
·期 12
·2000010
·
IF 4.948
Puttaswamy Madhusudan,Run Shi,Bananakere Nanjegowda Chandrashekar,Shengling Xiang,Ankanahalli Shankaregowda Smitha,Weijun Wang,Haichao Zhang,Xian Zhang,Abbas Amini,Chun Cheng
Solar water splitting using semiconductor photocatalysts is considered to be one of the economical and significant techniques for hydrogen evolution. In this study, graphene–Zn x Cd 1− x S (ZCS) heterojunction is fabricated by hydrothermal method followed by simple photodeposition of ultrathin few layers of molybdenum sulfide (MoS 2 ) nanosheets. The results show that compared with pristine ZCS and 1 wt% graphene mixed ZCS photocatalysts, the 1 wt% graphene and 1 wt% MoS 2 photodeposited ZCS composited sample shows 39.5 mmol h −1 g −1 hydrogen production activity, which is 6.9 and 1.9 times significantly higher, respectively, with an apparent quantum yield of 53% at 420 nm visible light is recorded. The improved photocatalytic activity can be attributed to the formation of heterostructure interface between p-type MoS 2 nanosheets with n-type ZCS host, which allows for the faster transfer of the photogenerated electrons and thus significantly promotes the separation of photogenerated charge carriers.
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Nanoscale
·
2018
·Vol. 10
·期 7
·3518-3525
·
IF 7.233
Die Hu,Jie Xiang,Qingwei Zhou,Shaoqiang Su,Zongbao Zhang,Xin Wang,Mingliang Jin,Li Nian,Richard Nözel,Guofu Zhou,Zhang Zhang,Junming Liu
Silicon nanowires (SiNWs) are widely used as photocathodes because of their large electrochemically available surface-area density and inherent ability to decouple light absorption from the transport of minority carriers. In order to minimize overpotential for solar-driven hydrogen (H2) production, a combination of an ultrathin molybdenum disulfide (MoS2) layer with SiNWs as photocathode has attracted much attention. Herein, for the first time, this study presents the synthesis of a composite photocathode via direct growth of ultrathin MoS2 nanosheets on SiNWs (referred to as SiNWs/MoS2) by one-step chemical vapor deposition (CVD). Due to the high surface-area density of the arrays of SiNWs, the discontinuous MoS2 nanosheets grown on the SiNWs achieved a much higher density of active sites. Moreover, the coating of MoS2 on the SiNWs was found to protect the photocathode during the photoelectrochemical (PEC) reaction. A high efficiency with photocurrent jsc of 16.5 mA cm−2 (at 0 V vs. reversible hydrogen electrode) and an excellent stability over 48 h of PEC operation were achieved under a simulated 1 sun irradiation.
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Journal of Physical Chemistry C
·
2018
·
IF 4.484
Xiaolei Man,Pei Liang,Haibo Shu,Lin Zhang,Dan Wang,Dongliang Chao,Zugang Liu,Xiaoqing Du,Houzhao Wan,Hao Wang
Layered metal sulfides (LMSs) with larger interlayer spacing are suitable for Li+ intercalation/extraction and possess relatively higher theoretical specific capacity than commercial graphite. However, pure LMSs show inherent low conductivity and irreversible huge volume expansion in lithium uptakes. In this work, we introduce an interesting van der Waals heterojunction between two popular LMSs, i.e., MoS2/SnS2 van der Waals heterojunction grown on reduced graphene oxide (MoS2/SnS2-rGO), which is synthesized by a facile hydrothermal process. The MoS2/SnS2-rGO nanocomposite exhibits a remarkable interface synergistic effect due to the weak van der Waals interaction on their nanocrystalline, which leads to an enhanced energy storage performance compared with MoS2-rGO and SnS2-rGO. The MoS2/SnS2-rGO exhibits better cycling stability of 894 mAh g–1 at 200 mA g–1 after 55 cycles and excellent rate performance of 590 mAh g–1 at 1 A g–1 for LIBs. This work proposes that weaker van der Waals interactions between the LMS can induce much more layer space for Li+ in LIBs, which might be another way to improve the storage performance of LIBs.
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JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Juan Yu,Jiale Fan,Hao Zhang,Jingsen Yue,Xinxin Tang,Zhiyuan Ma
To address the issues of poor cycling stability and unrealized theoretical capacity of layered molybdenum disulfide (MoS 2 ) as an anode material—caused by severe volume expansion during charge/discharge processes—we innovatively propose a "partial carbonization" modification strategy for ZIF-8 templates. This approach successfully constructs a ZnS/NC "dodecahedral nursery" rich in active sites. Benefiting from the abundant anchoring sites provided by this structure, MoS 2 can uniformly and firmly "take root" on the "nursery" via Mo–N bonds, ultimately forming a composite material (ZnS/NC@MoS 2 ) in which MoS 2 nanoflowers uniformly coat the dodecahedral framework. This composite effectively mitigates the volume expansion of MoS 2 and enhances overall structural stability. Moreover, the zinc retained by the partial carbonization strategy, after sulfidation, contributes additional capacity via conversion reactions, further enhancing the material's electrochemical performance. Specifically, when used as an anode for lithium-ion batteries (LIBs), it maintains a specific capacity of 895.64 mAh g −1 after 1200 cycles at 2 A g −1 ; for sodium-ion batteries (SIBs), its specific capacity increases from 348 mAh g −1 to 510 mAh g −1 after 500 cycles at 1 A g −1 .
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Xiaofei Sun,Ning Chen,Shujun Wang,Yushu Lin,Jie Zhang,Shuo Xing,Qing Liu,Yueyun Li,Daopeng Zhang,Kai Feng,Jongnam Park,Feng Tang
Cardiac troponin I (cTnI), recognized as the gold-standard biomarker for acute myocardial infarction (AMI), plays a crucial role in the early diagnosis and clinical management. Herein, we present a rationally designed multiple signal enhancement strategy for an ultrasensitive electrochemical immunoassay of cTnI. This work integrates the superior catalytic activity of a wrinkled MoS 2 -supported PtAgCu ternary alloy (PtAgCu/MoS 2 ) with the excellent conductivity of hexagonal star-like nitrogen-doped carbon (HS-NC) modified by gold nanoparticles (Au@HS-NC). The PtAgCu alloy, featuring maximized atomic utilization and optimized d-orbital coupling, exhibits outstanding hydrogen peroxide (H 2 O 2 ) electroreduction activity and a large electrochemically active surface area, thereby effectively amplifying the sensing signal. Meanwhile, the precisely designed MoS 2 carrier not only offers abundant anchoring sites and facilitates charge transfer but also enriches H 2 O 2 reactant, thereby promoting the catalytic performance of the PtAgCu alloy. Furthermore, as an ideal substrate, the morphologically engineered HS-NC, enriched with nitrogen functionalities, offers a highly conductive framework with ultralarge surface area (1121.80 m 2 g −1 ), enabling efficient immobilization of primary antibodies (Ab 1 ) and stable, accelerated charge transfer, thereby synergistically amplifies the signal output. Benefiting from this multiple amplification strategy, the proposed immunosensor achieves a remarkably low limit of detection of 0.51 fg mL −1 , and an exceptionally broad dynamic range (from 10 fg mL −1 to 100 ng mL −1 ), while exhibits excellent selectivity in complex matrices, maintaining high reproducibility and stability. This work demonstrates a rational multi-amplification design paradigm for constructing high-performance immunosensors and highlights its promising application in AMI early diagnosis.
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PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.3
Yunfeng Yang,Weibing Xu,Zhengfa Zhou,Haihong Ma,Fengmei Ren
Polyimide (PI) exhibits high-temperature resistance and corrosion resistance, making it a high-potential coating substrate. However, for use in automotive motor bearings, its adhesion and wear resistance still require improvement. This study investigated the efficient exfoliation of MoS 2 and combined few-layer MoS 2 with Polytetrafluoroethylene (PTFE) as a synergistic wear-resistant agent, which can be incorporated into PI coatings to improve the wear resistance. It achieved a minimum coefficient of friction (COF) of 0.073 and a wear rate of 0.0554 × 10 −5 mm 3 /(N·m). This result is attributed to the layered structure of few-layer MoS 2 and its synergistic interaction with PTFE. The structure of PI contains numerous ether bonds and highly polar sulfone groups that can bind to metal surfaces. The resulting coating achieves level 0 adhesion (ISO 2409:2020) on metal substrates for bearings, while exhibiting high toughness, impact resistance, and coolant resistance. This work is of great significance to research on high-adhesion coatings and nanoscale synergistic lubrication.
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