JOURNAL OF POWER SOURCES
·
2019
·
IF 7.467
Xiang Zhang,Jun Zhou,Yuying Zheng,Dongyang Chen
Bimetallic transition-metal selenides have emerged as promising anode materials for lithium-ion batteries (LIBs). However, they suffer from rapid capacity fading which is originated from significant chemical and mechanical degradation during lithiation/delithiation processes. Herein, nitrogen-doped graphene aerogel (NGA) with high porosity is prepared via a templated method and serves as the matrix for the uniform growth of sheet-like binary transition-metal selenides (MoSe 2 –CoSe 2 ). The porous NGA with high specific surface area provides a stable and conductive network, which can accelerate electron transmission and shorten the diffusion distance of Li ions . Furthermore, the MoSe 2 –CoSe 2 nanosheets can offer adequate specific capacity because of its high accessibility and multiple redox properties. As a result, the MoSe 2 –CoSe 2 /NGA-10 composite delivers high Li-ion storage capacity (1260 mAh g −1 at 0.1 A g −1 ), excellent rate capability (702 mAh g −1 at 5 A g −1 ), and stable cycling performance (914 mAh g −1 at 1 A g −1 after 200 cycles), demonstrating its great potential for LIB applications.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
DALTON TRANSACTIONS
·
2025
·
IF 3.3
Yi Feng,Zhi-Yuan Song,Yuan-Na Zhu,Cai-Li Lv,Lin-Lin Fan,Yun-Dong Cao,Hong Liu
Rechargeable potassium-ion batteries (PIBs) have emerged as promising sustainable alternatives to lithium-ion systems. However, their practical application is limited by the scarcity of high-performance electrode materials that can effectively accommodate the relatively large size of K+ ions. Herein, we present a defect-engineering strategy aimed at activating the basal planes of MoSe2 through the controlled introduction of selenium vacancies (VSe-MoSe2) using a plasma-mediated discharge etching process. The optimized vacancy concentrations substantially narrow the bandgap from 1.43 to 0.38 eV, enhance electronic conductivity, and generate multidimensional K+ ion diffusion pathways. Furthermore, the introduction of structural defects can significantly enhance the pseudocapacitive contribution of the VSe-MoSe2 electrode. In situ XRD, ex situ XPS/TEM, and DFT calculations collectively elucidate a highly reversible conversion mechanism for potassium storage, confirming the critical role of selenium vacancies in stabilizing the host structure and facilitating rapid K+ ion adsorption. Consequently, the optimal electrode exhibits a high reversible capacity of 286.2 mAh g−1 at a current density of 1 A g−1 after 100 cycles and maintains a capacity of 134.9 mAh g−1 even at 5 A g−1 after 300 cycles. This study highlights the transformative potential of precisely engineered defects in unlocking durable, high-rate potassium storage within layered transition metal dichalcogenides.
研究领域:
材料科学
·
电化学储能
·
纳米材料
·
能源化学
·
固态物理
·
电池技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Jinwei Kang,Qingmei Su,Huagui Feng,Ping Huang,Gaohui Du,Bingshe Xu
Layered two-dimensional MoSe 2 has raised much interest in lithium/sodium ion batteries (LIBs/SIBs) due to its unique structure and high theoretical capacity. In this work, we have fabricated MoSe 2 @carbon cloth (MoSe 2 @CC) composites through an in situ hydrothermal approach followed by an annealing treatment. The as-synthesized MoSe 2 @CC composites are constructed by MoSe 2 nanoflowers anchored on CC network, which can be directly used as binder-free anodes for LIBs and SIBs. As an anode for LIBs, the MoSe 2 @CC performs excellent rate capacity (1337, 1092, 952, 831 and 749 mAh g −1 at current densities of 0.1, 0.2, 0.5, 1.0, and 2.0 A g −1 ) and super long-life cycling stability (638 mAh g −1 remains after 1200 cycles at 5 A g −1 ). As for SIBs, the MoSe 2 @CC electrode delivers a high initial discharge capacity of 839 mAh g −1 and excellent long-life cycling stability, retaining 202 mAh g −1 after 1000 cycles. Kinetics results indicate that the Li + and Na + storages in MoSe 2 @CC are both dominated by surface-based pseudocapacitive process, which greatly improves the rate performance of LIBs/SIBs. The CC provides a conductive network and an excellent utilization rate of the active material MoSe 2 to improve the electrochemical performance.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiaobo Ma,Zeyu Yin,Zhen Cao,Baolong Shi,Xin Yan,Di Wu,Yueyue Wang,Chaoqing Dai,Min Hong
Self-powered operation and broadband spectral adaptability are critical for the next generation of photodetectors, enabling sustainable performance and multispectral functionality. The broadband wavelength response capability can expand the application scenarios of a photodetector. However, achieving both broadband photoresponse and accurate wavelength recognition remains a significant challenge. Herein, we develop a self-powered photoelectrochemical photodetector based on Bi 2 Te 0.6 Se 2.4 /MoSe 2 heterojunctions, capable of identifying 254, 365, 546, and 650 nm and simulated sunlight with the assistance of machine learning. To achieve precise energy band alignment with MoSe 2 and enhance the heterojunction interface, the selenium content in Bi 2 Te 3-x Se x and the mass ratio of the composite components were systematically optimized. These structural optimizations improve charge carrier separation and transport via band structure engineering and interfacial modulation, resulting in superior photoelectrochemical performance. By integrating material design with machine-learning-assisted wavelength discrimination, this study demonstrates a multidisciplinary approach to broadband detection and highlights the potential of such devices in optical communication, environmental monitoring, and multispectral imaging applications.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2017
·
IF 7.504
Xiaoshuang Chen,Yunfeng Qiu,Huihui Yang,Guangbo Liu,Wei Zheng,Wei Feng,Wenwu Cao,Wenping Hu,PingAn Hu
Considering the unique layered structure and novel optoelectronic properties of individual MoS2 and MoSe2, as well as the quantum coherence or donor–acceptor coupling effects between these two components, rational design and artificial growth of in-plane mosaic MoS2/MoSe2 lateral heterojunctions film on conventional amorphous SiO2/Si substrate are in high demand. In this article, large-area, uniform, high-quality mosaic MoS2/MoSe2 lateral heterojunctions film was successfully grown on SiO2/Si substrate for the first time by chemical vapor deposition (CVD) technique. MoSe2 film was grown along MoS2 triangle edges and occupied the blanks of the substrate, finally leading to the formation of mosaic MoS2/MoSe2 lateral heterojunctions film. The composition and microstructure of mosaic MoS2/MoSe2 lateral heterojunctions film were characterized by various analytic techniques. Photodetectors based on mosaic MoS2/MoSe2 lateral heterojunctions film, triangular MoS2 monolayer, and multilayer MoSe2 film are systematically investigated. The mosaic MoS2/MoSe2 lateral heterojunctions film photodetector exhibited optimal photoresponse performance, giving rise to responsivity, detectivity, and external quantum efficiency (EQE) up to 1.3 A W–1, 2.6 × 1011 Jones, and 263.1%, respectively, under the bias voltage of 5 V with 0.29 mW cm–2 (610 nm), possibly due to the matched band alignment of MoS2 and MoSe2 and strong donor–acceptor delocalization effect between them. Taking into account the similar edge conditions of transition metal dichalcogenides (TMDCs), such a facile and reliable approach might open up a unique route for preparing other 2D mosaic lateral heterojunctions films in a manipulative manner. Furthermore, the mosaic lateral heterojunctions film like MoS2/MoSe2 in the present work will be a promising candidate for optoelectronic fields.
研究领域:
材料科学
·
纳米技术
·
光电子学
·
半导体物理
·
薄膜生长
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Yan Cheng,Yue Zhao,Huanqin Zhao,Hualiang Lv,Xiaodong Qi,Jieming Cao,Guangbin Ji,Youwei Du
MoSe 2 is a compelling narrow-band-gap semiconductor with particular lamellar crystal structure, but which is rarely used as microwave absorber filler. Owing to the analogue molecular structure with MoS 2 , it may be a potential dielectric dissipation candidate. The hierarchical flower-like structure has been wide accepted as attractive morphology due to its possible strong multiple scattering and reflecting abilities for microwave, thus, in this study, we employed a facile solvothermal process to fabricate the unique flower-like MoSe 2 spheres for eliminating microwave interference issue. Further through the precise tuning of morphology configurations of flower-like MoSe 2 , the effective absorption to specific microwave frequency band can be well optimized, even including low-frequency band. The microwave absorption (MA) performance results show that the dense-flower samples could achieve full absorption in Ku-band and blooming-flower samples cover the entire X-band. The hollow-flower sample is good at absorption in low frequency of C-band and X-band. Our work not only develops outstanding microwave absorber candidates through delicate nanostructure design, but also paves a new way for tuning effective frequency band via tailoring morphology configurations.
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 HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Caicheng Long,Xiao Li,Zixin Jiang,Peng Zhang,Zhihe Qing,Taiping Qing,Bo Feng
Water pollution arising from heavy metal ions continues to be a major environmental problem, which represents a serious threat to human beings and animals worldwide. New materials that can simultaneously detect and remove these toxic ions are urgently required. Herein, nitrogen and sulfur co-doped molybdenum selenide nanosheets (N, S-MoSe 2 ) were prepared and found to be fluorescently responsive to mercury (II) with an improved adsorption capacity (208.33 mg g −1 ), thereby providing the possibility for the simultaneous detection and removal of mercury (II) in water samples. The great affinity was the result of the complexation of mercury (II) with Se and S atoms in N, S-MoSe 2 as well as the electrostatic adsorption of cation mercury (II) on negatively charged N, S-MoSe 2 . Besides good sensitivity and selectivity toward mercury (II), N, S-MoSe 2 displayed a relatively consistent performance under a wide pH range from 3 to 10. The removal efficiency reached 87.5% with fast adsorption kinetics , and N, S-MoSe 2 could be reused after simple treatment. Thus, this work is expected to provide new material for the detection and removal of mercury (II) in an aqueous solution and offer an insight into the interaction between heavy metal ions and inorganic nanomaterials .
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale Research Letters
·
2019
·Vol. 14
·期 1
·1-11
·
IF 3.159
Qi Feng,Liu Ruizhen
Integrating multiple tumor therapy functions into one nanoplatform has been a new tumor therapy strategy in recent years. Herein, a dual-modality therapy agent consisting of molybdenum selenide nanodots (MoSe 2 NDs) and bovine serum albumin (BSA) assembled nanospheres (MoSe 2 @BSA NSs) was successfully synthesized. After conjugation of folic acid (FA) molecules via polyethylene glycol (PEG) “bridges,” the FA-MoSe 2 @BSA NSs were equipped with tumor-targeting function. The BSA and PEG modifications provided the unstable MoSe 2 NDs with excellent physiological stability. Since the end-product FA-MoSe 2 @BSA NSs had strong near-infrared (NIR) and X-ray absorbance properties, they exhibited good photothermal properties with excellent photothermal stability and radio-sensitization ability, hence, were explored as photothermal radiotherapy agents. In vitro and in vivo experiments indicated that the FA-MoSe 2 @BSA NSs possessed highly efficient tumor-targeting effect, great biocompability, and synergistic photothermal radiotherapy effect. This work suggests that such biocompatible FA-MoSe 2 @BSA NSs may be a promising multifunctional dual-modality tumor therapy agent for use in combination tumor therapy.
研究领域:
肿瘤治疗
·
生物材料
·
医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBON
·
2018
·
IF 7.082
Changhai Liu,Ke Wang,Xuerui Zheng,Xiaocun Liu,Qian Liang,Zhidong Chen
The development of hydrogen evolution catalysts from earth-abundant elements with highly active and stable activity are crucial for the promotion of more energy and cost-efficient hydrogen production . Herein, a facile one-step hydrothermal approach is proposed to fabricate 3D hierarchical microcages composed of MoSe 2 -NiSe@carbon nanosheets for the efficient electro-catalytic hydrogen evolution reaction (HER) by water hydrolysis. The heterostrucutres were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy , scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The nanohybrids of MoSe 2 -NiSe are constructed by in situ combination of hexagonal NiSe and MoSe 2 , where the high quality vertical heterostructure can benefit the electrons transfer from metallic NiSe to the MoSe 2 matrix, accomplishing the electronic modulation of MoSe 2 -NiSe@carbon catalysts for robust electrocatalytic performance. The optimal MoSe 2 -NiSe@carbon exhibits excellent HER catalytic performance and superior durability in both acidic and alkaline medium .
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry B
·
2017
·Vol. 6
·期 1
·105-111
·
IF 4.543
Xiaoju Wu,Tongming Chen,Jianxing Wang,Guowei Yang
Molybdenum-containing and selenium-containing enzymes are generally prevalent in the biosphere, and the active sites of these involve molybdenum and selenium respectively. Herein, we for the first time demonstrated that few-layered molybdenum selenide (MoSe2) nanosheets possess intrinsic peroxidase-like activity. The few-layered MoSe2 nanosheets were prepared by a simple liquid exfoliation method. The catalytic process of the MoSe2 nanosheets accords with the Michaelis–Menten behavior and they have a higher affinity to both TMB and H2O2 compared to HRP. In addition, we established that the MoSe2 nanosheets catalyze the oxidation of TMB by promoting the electron transfer process from TMB to H2O2. More importantly, we applied the MoSe2 nanosheets to the field of biological detection by developing a highly sensitive and selective colorimetric detection of H2O2 and xanthine concentration. With these advantages, the few-layered MoSe2 nanosheets have critical potential in the diagnostics and biomedical fields.
研究领域:
生物化学
·
纳米医学
·
诊断学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Materials Interfaces
·
2019
·Vol. 7
·期 1
·1901706
·
IF 4.713
Guannan Zhang,Xingyu Zhang,Yongqiang Yang,Hongyu Zhang,Jing Shi,Xiaohong Yao,Xiangyu Zhang
Light-triggered antibacterial therapy is a promising alternative to combat bone-implant-associated infections. Titanium dioxide (TiO 2 ) is already widely used in biomedical engineering due to its excellent biocompatibility, corrosion resistance, and photocatalytic capability. However, the narrow absorption band in near-infrared (NIR) region restricts its practical application as photosensitizer for disinfection. Herein, molybdenum diselenide (MoSe 2 )/TiO 2 -Ti nanorod arrays (NRAs) with enhanced photothermal conversion and photocatalytic performance under 808 nm NIR light irradiation are prepared on titanium (Ti) by a two-step hydrothermal treatment. The combined actions of hyperthermia and reactive oxygen species give rise to excellent antibacterial activities on titanium requiring irradiation for only 10 min as demonstrated by the experiments conducted in vitro and in vivo. In addition, the introduction of arginine–glycine–aspartic acid can not only eliminate the weak toxicity of MoSe 2 , but also improve the cell adhesion, proliferation, and osteogenic differentiation of TiO 2 -Ti NRAs. This composite NRAs show great promise for in situ and nonsurgical treatment of biofilm infection on Ti implants.
研究领域:
生物医学工程
·
材料科学
·
纳米技术
·
传染病学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Huiying Chen,Nan Zhang,Chunlu Chang,Zhilin Liu,Yaru Shi,Xingyu Zhao,Shaojuan Li,Bin Duan,Hongwei Liang
Two-dimensional (2D) semiconductors have been of great interest in phototransistors in recent years due to their unique optoelectronic and electronic properties. However, their discernible spectral range and the efficiency of light absorption are usually restricted. Here, we present phototransistors based on mixed-dimensional heterostructures formed by zero-dimensional (0D) boron nitride quantum dots (BNQDs) and molybdenum diselenide (MoSe2), which have high responsivity (R), specific detectivity (D*), and external quantum efficiency (EQE), especially in the ultraviolet (UV) spectral range. The heterostructure phototransistors showed a 440% increase in R at 375 nm (from 5.6 to 24.7 A/W) and a 260% increase in D* (from 3.3 to 8.7 × 1011 Jones) compared to bare MoSe2 at the wavelength of 375 nm and a bias of 1 V. A series of characterization and comparison experiments show that charge transfer on BNQDs/MoSe2 results in the photogating effect and optical gain. Meanwhile, the high-performance BNQDs/MoSe2 heterostructure phototransistors exhibit broadband imaging capabilities and thus hold great promise for ultrasensitive light detection, neuromorphic visual sensing, and in-sensor computing applications.
研究领域:
材料科学
·
光电子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）