Batteries-Basel
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2024
·Vol. 10
·期 12
·447
·
IF 4.6
Haoliang Xie,Shunxing Chen,Lianghao Yu,Guang Chen,Huile Jin,Jun Li,Shun Wang,Jichang Wang
The development of high energy and power density sodium-ion batteries (SIBs) has attracted increasing interest in the last two decades due to the abundance and cost-effectiveness of sodium resources. Herein, this study developed a self-templating synthetic method to construct MoSe2nanosheets which were intercalated by ZnSe nanoparticles and were anchored on the in situ reduced graphene oxide layers. The thus-fabricated composites exhibited excellent Coulombic efficiency, a remarkable rate capability and an exceptionally long cycle life when being utilized as the anode in SIBs. Specifically, a reversible capacity of 265 mAh g−1was achieved at 20 A g−1, which could be maintained for 6400 cycles. At an ultra-high rate of 30.0 A g−1, the anode retained a capacity of 235 mAh g−1after 9500 cycles. Such a strong performance was attributed to its unique porous structure and synergistic interactions of multi-components. The underlying sodium storage mechanism was further investigated through various techniques such as in situ X-ray diffraction spectroscopy, the galvanostatic intermittent titration method, etc. Overall, this study illustrates the great potential of clad-structured multicomponent hybrids in developing high-performance SIBs.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
Journal of Energy Storage
·
2021
·
IF 6.583
Xiaobo Chen,Jiangyue Zhu,Jianghao Cai,Yang Zhang,Xiaohua Wang
Herein, we report a composite structure by incorporating MoSe 2 nanosheets in organ-like Ti 3 C 2 T x MXene (MXene/MoSe 2 ) as new nanohybrid anode materials for high-performance asymmetric supercapacitors. Benefits of the positive advantages including unique heterostructure, enhanced active area for redox reactions, and beneficial synergetic interaction, the specific capacitance of the MXene/MoSe 2 composite electrode was high up to 1358.5 F g −1 at 1 A g −1 , much higher than that of the pure Ti 3 C 2 T x MXene and MoSe 2 electrodes. In addition, when applied the synthesized Ti 3 C 2 T x MXene/MoSe 2 nanohybrid as positive electrode in asymmetric supercapacitor (ASC), excellent performance is observed. For instance, a high specific energy of 55.6 Wh kg −1 , high specific power of 800.3 W kg −1 with the capacitance retention of 94.1% even after 10,000 cycles at a high current density of 5 A g −1 are obtained. These results indicate that the MXene/MoSe 2 composite will be a high promising candidate for supercapacitors.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2023
·
IF 16.5
Chun Yin,Fulin Yang,Shuli Wang,Ligang Feng
Efficient heterogeneous catalysts play a very important role in the value-updated green hydrogen production from urea-containing wastewater. Herein, NiSe 2 /MoSe 2 heterostructured catalyst with optimized interfacial electron redistribution and urea adsorption energies via a strong built-in electric field was demonstrated effective for the urea-assisted water splitting reactions. Efficient catalytic performance was found on NiSe 2 /MoSe 2 hybrid microsphere owing to the combined merits such as the unique structure features, the strong synergetic coupling effects, the increased active sites, and the high amount of intrinsic Ni 3+ species. Excellent urea oxidation activity was found to drive 10 mA cm −2 at the potential of 1.33 V when loaded on the glassy carbon electrode, and a cell voltage of 1.47 V was required in the NiSe 2 /MoSe 2 ||Pt/C urea-water electrolyzer to drive 10 mA cm −2 , about 220 mV less than that of water electrolysis, indicating a less energy consumption technique during the electrolysis. The spectroscopic and theoretical analysis revealed the effective synergy of the Ni–Se bond and Mo–Se bond that would be promising for efficient catalyst system construction.
研究领域:
材料科学
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能源化学
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催化化学
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产品关联
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2021
·Vol. 168
·期 5
·056523
·
IF 4.316
Xiansen He,Xiaokun Li,Suxiang Feng,Xueying Li,Cuijie Nong
In this study, a novel photoelectrochemical (PEC) sensor based on FeMoSe2 was developed for the detection of berberine hydrochloride (BRH). The photosensitive material Fe-doped MoSe2 (FeMoSe2) was prepared by a simple hydrothermal method. Compared with MoSe2, FeMoSe2 shows superior PEC performance for the sensitive detection of BRH under blue light. Under the best experimental conditions, the PEC sensor presented a wide detection range of 0.025–15.0 μM with a detection limit of 8.4 nM. Therefore, the PEC sensor is considered an effective analytical method for detecting BRH. Moreover, the PEC sensor has good reporducibility and stability. Eventually, the proposed sensor was successfully applied to detect two different types of BRH tablets. This project provides a new pathway for detecting BRH.
研究领域:
分析化学
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材料科学
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药物分析
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Shaojian Jiang,Lijun Zhang,Hongjie Yu,Kai Deng,Ziqiang Wang,You Xu,Hongjing Wang,Liang Wang
Two-electron oxygen reduction reaction (2e − ORR) for hydrogen peroxide (H 2 O 2 ) production in acidic solution is becoming a promising synthetic method due to its mild and green process. However, it is still hindered by sluggish kinetics and low selectivity. Given that heterostructure can enhance electron transfer and provide abundant active sites, interface modification can optimize O 2 adsorption configurations and the adsorption energy of the reaction intermediates to improve ORR activity and selectivity. Here, we coupled heterostructures of Ni 0.85 Se-MoSe 2 and polyethyleneimine (PEI) functionalization to enhance the activity and selectivity of the 2e − ORR for the efficient production of H 2 O 2 in acidic solutions. The as-fabricated Ni 0.85 Se-MoSe 2 @PEI performed 91.7 % selectivity of H 2 O 2 in the rotating ring-disk electrode test, while the H 2 O 2 yield rate was up to 3.57 mol g cat. −1 h −1 and the Faraday efficiency was 95.5 % in the H-type cell. In addition, Ni 0.85 Se-MoSe 2 @PEI maintains excellent stability in long-term operation, verifying the practicability of the catalyst. The combination of heterostructure and interface engineering provides research ideas for the electrochemical synthesis of H 2 O 2 .
研究领域:
材料科学
·
电化学
·
催化
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2024
·
IF 6.1
Zhiqi Li,Jiawen Yan,Qiming Li,Ao Xu,Jianchao Sun,Yijing Wang,Xiaoyu Zhang,Xueqin Sun,Fuyi Jiang,Yanli Zhou
MoSe2 with a two-dimensional layer-like structure has been considered a promising anode material for sodium-ion batteries (SIBs) on account of its high capacity and rich reserves on Earth. However, the inherent low conductivity of 2H-MoSe2, as well as the inevitable volume fluctuation during cycling, causes structural collapse and capacity decline, resulting in poor rate capability and unacceptable cycling stability. To improve the sodium storage properties of 2H-MoSe2, the Te doping strategy has been adopted to successfully synthesize Te doped 1T/2H-MoSe2 nanosheets (Te-MoSe2) via a facile two-step reaction. The Te doping induces the phase transition of 2H-MoSe2 to form 1T-MoSe2, which can improve the electron conductivity and generate more active sites, benefiting the promotion of sodium storage capacity. Besides, the 1T/2H heterogeneous interface accelerates the charge transfer kinetics. Thus, as an innovative anode material for sodium-ion half batteries, Te-MoSe2 exhibits better sodium storage performances than pure MoSe2. The full batteries composed of the Te-MoSe2 anode and Na3V2(PO4)3@rGO cathode also deliver remarkable electrochemical performances. The related kinetics results confirm the excellent electron transfer efficiency and rapid Na+ diffusion behavior of Te-MoSe2. Moreover, the reaction mechanism has also been elucidated by some ex situ characterization techniques. The good reversibility and excellent sodium storage properties of the Te-MoSe2 electrode indicate its potential application in future energy storage fields.
研究领域:
材料科学
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能源存储
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产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2023
·
IF 3.9
Cheng Yao,Danni Wu,Changlai Yuan,Xiaogang Xue,Liming Liu,Xiaowen Zhang
BiOCl-based heterojunctions with effective charge separation/transportation are highly desired for photocatalytic degradation of pollutants. Fantastic 0D/2D heterojunctions between MoSe 2 Quantum dots (QDs) and BiOCl (MoSe 2 QDs/BiOCl) were synthesized via liquid phase exfoliation and hydrothermal method . X-ray diffraction, scanning electron microscope , and transmission electron microscopy confirm the excellent crystallinity and the superior surface morphology of the combination of the two materials. The UV–Vis Diffuse Reflectance Spectroscopy shows that MoSe 2 QDs/BiOCl exhibits enhanced light absorption . Furthermore, electrochemical impedance spectroscopy and photoluminescence measurements suggest that the MoSe 2 QDs/BiOCl heterojunction promotes charge separation and transport of photogenerated carriers. As results, the optimized MoSe 2 QDs/BiOCl with 0.5 wt% of MoSe 2 QDs significantly enhances the degradation rate of Rhodamine B to 3.59 times (2.76 × 10 −3 min −1 ) that of pristine BiOCl (7.66 × 10 −4 min −1 ). Free radical capture experiments indicate that ·O 2− plays an overwhelming role in the Rhodamine B degradation, compared to h + or ·OH. Our experiments provide some new ideas for improving the photocatalytic degradation performance of BiOCl.
研究领域:
材料科学
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环境科学
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化学
·
纳米技术
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
He Zhou,Dezhi Kong,Ningning Chu,Hui Wang,Jie Xu,Ye Wang,Tingting Xu
The development of sustainable energy technologies relies on the exploitation of efficient and durable electrocatalysts for water splitting at high current densities. Our work presents a novel bifunctional catalyst, denoted as NM@NC/CC, which combines the benefits of NiSe 2 -MoSe 2 heterojunctions with nitrogen-enriched porous carbon derived from metal-organic frameworks (MOFs). The integration of these components is designed to harness their combined advantages, which include enhanced electron transfer, improved mass and gas evolution dynamics, and an increased number of catalytically active sites. These features collectively optimize the energetics for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). As a result, the catalyst facilitates rapid kinetics for the overall water-splitting process. The NM@NC/CC demonstrates low overpotentials, requiring only 91 mV for the HER and 280 mV for the OER to reach a current density of 10 mA cm −2 . Even at higher current densities of 100 mA cm −2 for HER and 50 mA cm −2 for OER, the overpotentials are only 159 mV and 350 mV, respectively. Additionally, a two-electrode setup using this catalyst achieves a current density of 10 mA cm −2 with a minimal cell voltage of 1.56 V. The insights gained from this study will contribute to the advancement of electrocatalysts for energy conversion technologies.
研究领域:
材料科学
·
能源转换技术
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电催化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Xuan Luo,Xiangpeng Kong,Peng He,Jian Shao,Kang Li,Weiwei Zhao
The rational design and assembly specific structures consisting of multiple components with distinctive features are promising strategies for developing advanced materials for efficient sodium storage. Herein, a novel hierarchical sandwich-liked structure MoSe 2 nanosheet array is designed and synthesized, in which MoSe 2 nanosheet through strong interfacial interaction is encapsulated in two dimensional carbon framework that improves electrical conductivity and Na + diffusion kinetic. Moreover, the carbon protective layer reinforces the stability of structure and maintains electrochemical activity during long-term charging/discharging process. The density functional theory calculation (DFT) further confirms carbon incorporation can reduce Na + diffusion energy barrier for enhancing the reaction kinetics. With the obtained NC/MoSe 2 @NC as free-standing electrodes for SIBs, it achieves a reversible capacity of 632 mAh g −1 at 0.2 A g −1 , or actual capacity of 421 mAh g −1 by removing contributed capacity of the carbon cloth substrate, and excellent long cycling stability. By matching with Na 3 V 2 (PO 4 ) 3 /C cathode, the sodium full cell displays a high energy density of 186.2 Wh kg −1 with a power density of 121.2 W kg −1 . This current design and fabrication strategy manifests promising prospect for exploring efficient electrode materials for sodium storage.
研究领域:
材料科学
·
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
Wenpei Kang,Zhenkai Mou,Xuqiang Hu,Xiaoyu Fan,Daofeng Sun
Rational structure design is significant for the selenide anodes in the sodium/potassium ion batteries (SIBs/PIBs). Herein, dual engineering of hetero-interfaces and architecture is proposed to design SIB/PIB anodes. Attributed to the coordination binding with Mo 7 O 24 6- and VO 3 - , the polydopamine assembly is demonstrated as an ideal template to produce bimetallic selenide of MoSe 2 /VSe 1.6 anchoring on the in-situ N -doped carbon matrix (MoSe 2 /VSe 1.6 @NC). This ingenious hierarchical nanoflower structure can shorten the Na + /K + diffusion length, increase the electron conductivity and buffer the volume changes, which can promote Na + /K + reaction kinetics and stabilize the cycling performance. Consequently, the sodium/ potassium storage performance of MoSe 2 /VSe 1.6 @NC can be boosted. In SIBs, it achieves a capacity of 202 mAh/g at 10.0 A/g for 5000 cycles. Meanwhile, stable capacities of 207.1 mAh/g can be reached at 1.0 A/g over 1000 cycles in the PIBs. Furthermore, impressive capacities of 222.1 mAh/g and 100.4 mAh/g are delivered in the full cells of MoSe 2 /VSe 1.6 @NC//Na 3 V 2 (PO4) 3 @C and MoSe 2 /VSe 1.6 @NC//FePBA, respectively. This proves the potential practical application for the MoSe 2 /VSe 1.6 @NC anode in SIBs/PIBs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL TECHNOLOGY
·
2024
·
IF 2.2
Yueming Zhu,Yuexiang Gao,Fei Yang
It is critical to effectively eliminate recalcitrant organic pollutants from wastewater. In this paper, the MoSe2/SrTiO3 (MST) catalysts were synthesized through simply controlling the amount of MoSe2 in the hydrothermal method to activate peroxymonosulfate (PMS) for the degradation of pollutants. The results demonstrated that sulfamethoxazole and tetracycline were almost eliminated by PMS/MST-3 (MoSe2/SrTiO3 mass ratio 0.3: 1) activation system. The effect of inorganic anions (Cl –, H2PO4 –, HCO3 –) and metal ions (Cu2+, Ni2+, Zn2+) commonly found in actual water bodies on catalytic reaction was explored. Moreover, SO4• –, •OH and 1O2 were identified by EPR tests and scavenger experiments, where the SO4• – and •OH were the dominant reactive species. The XPS analysis indicated that the oxygen vacancies and charge transfer on the catalyst surface were the keys of PMS activation. The effect of active sites in SMX and TC on the catalytic degradation activity was explored by density functional theory, and it was obtained that the central nitrogen site of SMX was more vulnerable in the catalytic system, while the edge oxygen site of TC was more susceptible to attack.
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
Journal of Materials Chemistry A
·
2015
·Vol. 3
·期 31
·16337-16347
·
IF 7.443
Shengjie Xu,Zhouyue Lei,Peiyi Wu
In this paper, 3D porous MoS2/MoSe2 nanosheet–graphene networks were successfully prepared by a simple mixing solvothermal treatment. The resulting products possessed highly conductive graphene networks on which highly exfoliated MoS2/MoSe2 nanosheets were decorated. This hybrid 3D architecture facilitated loading of 2D nanosheets (including some 0D quantum dots), exposure of active sites, and improvement of electron transfer between the electrode and the catalysts. The highly exfoliated and defect-rich structure of MoS2/MoSe2 nanosheets endowed these composites with plentiful active sites for the electrocatalysis of the hydrogen evolution reaction (HER). The MoSe2 sample exhibited remarkable activity for the HER with a very small overpotential of approximately 70 mV and a low Tafel slope of 61 mV per dec, as well as excellent long-term durability. Moreover, due to the facile and relatively low-cost preparation method, our work might develop promising candidates for Pt-free HER catalysts for future commercial applications and provide an alternative facile approach to fabricate other layered materials confined in graphene hybrid 3D networks on a large scale.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
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