JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Henglong Ren,Hao Guo,Yanrui Hao,Yu Liu,Liping Peng,Wu Yang
Transition metal sulfides (TMSs) have significant potential in energy storage applications due to their high theoretical capacity and diverse reaction mechanisms. However, performance limitations in supercapacitors arise from various intrinsic defects, including low active material utilization and poor cycling stability caused by unstable electrical conductivity. To address these issues, this paper incorporates selenium atoms into sulfides, aiming to leverage selenium’s high conductivity to enhance the electroactivity of transition metal sulfides. This approach improves both the conductivity of sulfides and the ion transport rate as well as enhances structural stability. Furthermore, a hierarchically porous structure of metal–organic framework (MOF) is synergistically optimized to augment the composite’s energy storage capacity. The resulting MnS@NiCoSeS-1 composite demonstrates excellent electrochemical performance, achieving a specific capacity of 901.0 C g −1 at 1 A g −1 in a three-electrode configuration, with a capacity retention of 82.6 % after 10,000 cycles at 3 A g −1 . Additionally, the hybrid supercapacitor (HSC) constructed from this composite exhibits a high specific energy of 78.85 Wh kg −1 at a power density of 775.2 W kg −1 . These findings validate the effectiveness of co-doping strategies for optimizing active material utilization and provide novel insights into the design of supercapacitors with both high energy and power densities.
研究领域:
材料科学
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能源存储
·
电化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Jianxin Pan,Liangliang Liu,Hanping Pan,Lihui Yang,Meirong Su,Chaohai Wei
Metal sulfide-based biological process is considered as a promising biotechnology for next-generation wastewater treatment . However, it is not clear if simultaneous bio-reduction of nitrate and chromate was achievable in this process. This study aimed to evaluate the feasibility of metal sulfides (FeS and MnS) on simultaneous denitrification and chromate reduction in autotrophic denitrifying column bioreactors . Results showed that simultaneous reduction of nitrate and chromate was achieved using metal sulfides (FeS and MnS) as electron donors, in which sulfate was the sole soluble end-product. Apart from the sulfur element in the metal sulfides, Fe(II) and Mn(II) were also involved in nitrate and chromate reduction as indicative by the formation of their oxidative states compounds. In microbial communities , SHD-231 and Thiobacillus were the most predominant bacteria, which might have played important roles in simultaneous denitrification and chromate reduction. Compared to FeS, MnS showed a higher performance on nitrate and chromate removal, which could also reduce the toxic inhibition of chromate on nitrate reduction . According to results of XRD and XPS, as well as a lower sulfate production in the FeS system, FeS might have been covered easily to hydroxides due to its bio-oxidation, which limited mass transfer efficiency and bio-availability of FeS. The findings in this study offered insights in the development of promising approaches for the treatment of toxic and hazardous compounds using metal sulfide.
研究领域:
环境科学
·
微生物学
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121501
·
IF 7.2
Xiaoqian Ma,Han Zhang,Yi Zhao,Shuai Ma,Xiaoli Bai,Yuanchun Zhang,Daomei Chen,Jiaqiang Wang
Self-cycled photo-Fenton system, which integrates photocatalysis with Fenton technology, is investigated thoroughly in wastewater treatment due to the virtues of no addition of H 2 O 2 and accelerated circulation of Fe 2 + /Fe 3+ . Here we report an enhanced sulfur vacancy modified α-MnS/Ni 3 S 2 on nickel foam(NF), the simple hydrothermal successfully fabricated the magnetic floriform α-MnS/Ni 3 S 2-x /NF rich in sulfur defects. α-MnS enhanced the sulfur vacancy and further improved the hydrogen peroxide production performance of floriform Ni 3 S 2 . Without the external addition of both H 2 O 2 and Fenton-like metal ions, α-MnS/Ni 3 S 2-x /NF floriform exhibited an extremely high H 2 O 2 production rate of 51.6 mM·h −1 ·g −1 under visible light irradiation, which is the highest than those reported photocatalysis self-Fenton system in the literature. Interestingly, the self-cycled photo-Fenton strategy can be applied to the reduction of Cr(VI) and oxidative degradation of oxytetracycline hydrochloride(OTC), and the corresponding degradation and reduction rates all reach up to 98 %. The wide-spectrum light harvesting, photothermal effect and solar-driven photocatalysis in the α-MnS/Ni 3 S 2-x /NF are beneficial for the synergistically enhanced thermal-assisted photodegradation toward wastewater with a water evaporation rate of 2.01 kg·m −2 ·h −1 . Furthermore, a series of experiments and calculations were carried out to verify the photocatalytic mechanism. Density function theory (DFT) calculation shows that the formation of sulfur defects increases the number of active sites, decreases the energy barrier, and improves the activity and selectivity. In addition, α-MnS/Ni 3 S 2-x /NF floriform also exhibited good performance in real wastewater containing fluoronitrobenzene from a factory. Our findings may help the development of novel functional nanostructures for applications in environmental remediation and solar steam generation.
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DOI
高影响因子
CARBON
·
2022
·
IF 11.307
Jing Qiao,Xue Zhang,Chang Liu,Zhihui Zeng,Yunfei Yang,Lili Wu,Fenglong Wang,Zhou Wang,Wei Liu,Jiurong Liu
Broadening absorption bandwidth is of great significance to extend application scenarios for electromagnetic wave (EMW) absorption materials . Since the electromagnetic character changes caused by high shape anisotropy, one-dimensional fibrous materials have been widely concerned. In this work, manganese sulfide (MnS)/carbon nanocomposite fibers are facilely synthesized by a facile combination of electrospinning and high-temperature processing. The fibrous carbon supports with a 350-nm average diameter are embedded with dense MnS nanoparticles on the surface. Under the premise of ensuring a strong EMW absorption intensity (−68.9 dB, 11.1 GHz, 3.6 mm), the MnS/carbon nanocomposite fibers can achieve a wide effective absorption bandwidth of 7.2 GHz (9.5–16.7 GHz, 3.3 mm). In-depth study verifies that MnS can help to achieve superior synergy between conductive and polarized attenuation capacity, enhance the attenuation ability and optimize impedance matching characteristic. Besides, considering the few studies about MnS in this field, this work confirmed the huge potentials of MnS for EMW absorption applications.
研究领域:
材料科学
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电磁学
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DOI
高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-20
·
IF 36.3
Liang Puwu,Pan Duo,Hu Xiang,Yang Ke R.,Liu Yangjie,Huo Zijing,Bo Zheng,Xu Lihong,Xu Junhua,Wen Zhenhai
Manganese-based chalcogenides have significant potential as anodes for sodium-ion batteries (SIBs) due to their high theoretical specific capacity, abundant natural reserves, and environmental friendliness. However, their application is hindered by poor cycling stability, resulting from severe volume changes during cycling and slow reaction kinetics due to their complex crystal structure. Here, an efficient and straightforward strategy was employed to in-situ encapsulate single-phase porous nanocubic MnS 0.5 Se 0.5 into carbon nanofibers using electrospinning and the hard template method, thus forming a necklace-like porous MnS 0.5 Se 0.5 -carbon nanofiber composite (MnS 0.5 Se 0.5 @N-CNF). The introduction of Se significantly impacts both the composition and microstructure of MnS 0.5 Se 0.5 , including lattice distortion that generates additional defects, optimization of chemical bonds, and a nano-spatially confined design. In situ/ex-situ characterization and density functional theory calculations verified that this MnS 0.5 Se 0.5 @N-CNF alleviates the volume expansion and facilitates the transfer of Na + /electron. As expected, MnS 0.5 Se 0.5 @N-CNF anode demonstrates excellent sodium storage performance, characterized by high initial Coulombic efficiency (90.8%), high-rate capability (370.5 mAh g −1 at 10 A g −1 ) and long durability (over 5000 cycles at 5 A g −1 ). The MnS 0.5 Se 0.5 @N-CNF //NVP@C full cell, assembled with MnS 0.5 Se 0.5 @N-CNF as anode and Na 3 V 2 (PO 4 ) 3 @C as cathode, exhibits a high energy density of 254 Wh kg −1 can be provided. This work presents a novel strategy to optimize the design of anode materials through structural engineering and Se substitution, while also elucidating the underlying reaction mechanisms.
研究领域:
材料科学
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能源存储
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2025
·
IF 6.6
Fansheng Zeng,Linzhu Wang,Ruizhi Gao,Jingfeng Wang,Junqi Li,Chaoyi Chen,Xing Ran
The morphology of MnS inclusions significantly affects the mechanical properties of steel. In this study, the morphology and size of MnS inclusions were refined by introducing nano-ZrO 2 particles into the molten steel. As the ZrO 2 content increased, the number of Al 2 O 3 –MnS inclusions decreased, while ZrO 2 –MnS inclusions became predominant core-shell inclusions. Simultaneously, MnS inclusions transformed from elongated shapes to fine spherical particles with an average area of 0.963 μm 2 and a sphericity of 0.805 at a ZrO 2 content of 0.0126 wt.%. Although both Al 2 O 3 and ZrO 2 acted as heterogeneous nucleation sites for MnS, first-principles calculations revealed that ZrO 2 exhibited stronger nucleation capability, with the adsorption ability showing a clear gradient: monoclinic ZrO 2 exhibiting the strongest adsorption, followed by tetragonal ZrO 2 , and finally α-Al 2 O 3 . Based on the experimental observations and theoretical results, a mechanism for ZrO 2 -facilitated heterogeneous nucleation of MnS was proposed. These findings provide valuable theoretical insights and technical guidance for spheroidization of MnS inclusions during steelmaking process.
研究领域:
材料科学
·
冶金学
·
夹杂物工程
·
计算材料科学
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产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2023
·
IF 6.4
Yuqing Hu,Puhui Deng,Wenying Wang,Linping Zhang,Yu Hou
Element doping and collaboration with other cocatalysts are two vital strategies to improve the photoelectrochemical properties and overcome the drawbacks of CdS for better photocatalytic performance. In this work, a series of manganese cadmium sulfides (MnxCd1–xS) were obtained by a solvothermal method. When x is equal to or greater than 0.3, MnxCd1–xS is composed of Mn–Cd–S sosoloid and MnS. Among all these MnxCd1–xS products, the Mn0.5Cd0.5S sample showed the best photocatalytic hydrogen production (5.99 mmol g–1 h–1). To further elevate the hydrogen production rate of Mn0.5Cd0.5S, four kinds of Ni-POMs were coupled with it as cocatalysts, and all these composite photocatalysts displayed enhanced performance. The highest efficiency was observed for 15-Ni4–Mn0.5Cd0.5S, which is up to 36.58 mmol g–1 h–1. Various characterizations indicated that Ni4P2W18, Mn–Cd–S sosoloid and MnS in the 15-Ni4–Mn0.5Cd0.5S composite form a double type-II heterojunction, which facilitates the separation and transfer of photogenerated carriers.
研究领域:
材料科学
·
催化
·
光化学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Zhiyuan Ning,Ruoran Li,Kai Xin,Li Liu,Leicheng Wen,Pan Liu,Ping Ning
Transition-metal sulfides doped with various elements show great promise as highly effective catalysts for the hydrogen evolution reaction (HER), potentially serving as alternatives to Pt-based electrocatalysts . Defect engineering has been identified as a key strategy to enhance the HER activity of such catalysts. This study proposes an effective strategy to generate numerous topological/geometric defects on hollow spherical Mn-doped cobalt sulfide (MnS–CoS) via plasma etching . MnS–CoS catalysts with well-defined cavity structures were successfully prepared using a combination of template-assisted and hydrothermal synthesis methods. Under plasma induction, these catalysts exhibited uniformly formed nanocavity structures with a built-in electric field, which uniformly enhanced their topological/geometric defect levels. The plasma-etched MnS–CoS catalyst demonstrated significantly enhanced HER activity, exhibiting an excellent overpotential of 172 mV at a current density of 10 mA·cm⁻ 2 in alkaline media and a low Tafel slope of 120 mV·dec⁻¹. These improvements can be attributed to the remarkable conductivity of Co and Mn, along with the unique hollow spherical nanostructure of the material, which contained numerous gaps that promoted electron movement and electrolyte penetration, thereby enhancing the overall catalytic performance. The synergistic effects of heteroatom doping and plasma modulation played a crucial role in achieving outstanding catalytic performance toward the HER. Density-functional theory calculations based on a structural model of MnS–CoS-p confirmed that the introduction of defects and heteroatoms reduced hydrogen adsorption: the Gibbs free energy decreased from 0.72 eV for CoS to 0.23 eV for MnS–CoS-p. The excellent HER activity of the MnS–CoS materials stemmed from the abundance of reactive heterostructured interfaces, which optimized the electronic configuration and, thus, accelerated H 2 O adsorption and dissociation. This study highlights the potential of combining plasma-assisted defect manipulation and transition-metal-element doping to design high-performance catalysts. The findings also offer valuable insights into the development of environment-friendly energy-conversion technologies.
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
Batteries & Supercaps
·
2026
·Vol. 9
·期 9
·e70460
·
IF 4.5
Zhuoran Hou,Jiangtao Cui,Gaosen Wang,Huayu Zhang
This work reports a synergistic dual‑engineering strategy that integrates heterointerface construction with cationic modulation for developing high‑performance supercapacitor electrodes. Three‑dimensional V‑doped Ni 3 S 2 /MnS nanoflower heterostructures are successfully synthesized via a facile hydrothermal‑sulfidation method. The in situ‑formed heterojunctions create built‑in electric fields that accelerate charge transfer, while V 3+ doping optimizes the electronic structure and provides additional redox‑active sites. Benefiting from this rational design, the V‑Ni 3 S 2 /MnS electrode delivers a high specific capacity of 2725 F g −1 at 1 A g −1 , retains 1700 F g −1 (62.4% retention) at 10 A g −1 , and maintains 92.4% capacity retention after 5000 cycles. Theoretical calculations confirm the enhanced charge‑transfer kinetics in the heterostructure. When assembled into an asymmetric supercapacitor with activated carbon, the full cell achieves an energy density of 66.3 Wh kg −1 at 1500 W kg −1 . This study provides new insights into the design of heterostructured electrode materials for advanced energy storage applications. Graphical This study achieved an innovative design of high-performance hybrid supercapacitor electrode materials by constructing a V-doped Ni 3 S 2 /MnS nanoflower heterostructure. This material employed a synergistic strategy of interface engineering and cation regulation, achieving a high specific capacity of 2725 F g − 1 at a current density of 1 A g − 1 , maintaining 1700 F g − 1 even at a large current of 10 A g − 1 , and demonstrating excellent cycle stability of 92.4%. Theoretical calculations indicated that the built-in electric field at the heterointerface significantly enhanced the charge transfer kinetics. The assembled asymmetric supercapacitor device achieved an energy density of 66.3 Wh kg − 1 at a power density of 1500 W kg − 1 . This research provides a new idea for designing high-performance energy storage materials through multi-scale structure regulation.
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高影响因子
Progress in Natural Science-Materials International
·
2021
·
IF 3.607
Weiqin Li,Mengyuan Yue,Huinan Guo,Zhaoxia Yuan,Yafei Liu,Kai Chen,Juming Gu,Yijing Wang
The manganese sulfide (MnS) has attracted more attention as anode material on energy storage and conversion field, owing to its high theoretical capacity (616 mA h g −1 ) and good electrochemical activity. However, low electronic conductivity and large volume expansion during charge-discharge processes have limited its further application. In order to address above mentioned problems, the composites, MnS nanoparticles embedded in N,S-codoped porous carbon skeleton (named as MnS/N,S–C composites), herein have been prepared successfully using metal organic framework (Mn-NTA) as template. The porous carbon skeleton not only can enhance electrode conductivity, but also relieve volume expansion during charge-discharge processes. Thus, the rational design towards electrode architectures has endowed MnS/N,S–C nanocomposites with superior electrochemical performance, which delivers the specific capacities of 676.7 mA h g −1 at the current density of 100 mA g −1 .
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
Nanoscale
·
2017
·Vol. 9
·期 38
·14364-14375
·
IF 7.367
Yuhao Li,Yun Sun,Tianye Cao,Qianqian Su,Zili Li,Mingxian Huang,Ruizhuo Ouyang,Haizhou Chang,Shuping Zhang,Yuqing Miao
Overtreatment as a crucial modern medicine issue needs to be urgently addressed. Theranostic agents supply a unique platform and integrate multiple diagnosis and therapies to deal with this issue. In this study, a core–shell MnS@Bi2S3 nanostructure was fabricated via two step reactions for tri-modal imaging guided thermo-radio synergistic therapy. The mass ratio between the core and shell of the constructed MnS@Bi2S3 can be precisely controlled via cation exchange reaction. After surface PEGylation, MnS@Bi2S3-PEG nanoparticles exhibited excellent aqueous medium dispersibility for bioapplications. Based on the r1 and r2 relaxivity obtained from the MnS core and the strong near-infrared absorption and X-ray attenuation abilities of the Bi2S3 shell, the intratumoral injected MnS@Bi2S3-PEG can realize in vivo magnetic resonance, computer tomography, and photoacoustic tumor imaging under a single injection dose. Hyperthermia significantly boosts the efficacy of radiation therapy, showing synergistic tumor treatment efficacy. No obvious toxicity is monitored for the treated mice. Our study not only provides a new way to precisely construct the core–shell nanocomposite, but also presents a unique theranostic platform and unifies the solutions for the challenges related with high injection dose and overtreatment.
研究领域:
生物医学工程
·
肿瘤学
·
纳米医学
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产品关联
DOI
PubMed
高影响因子
Catalysts
·
2020
·Vol. 10
·期 10
·1141
·
IF 3.52
Khalil ur Rehman,Shaista Airam,Long Song,Jian Gao,Qiang Guo,Yukun Xiao,Zhipan Zhang
The search for renewable energy resources has attracted considerable research interests in electrochemical reactions of hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR) that are essential for fuel cells. Earth-abundant, eco-friendly and cost-effective transition metal compounds are emerging candidates as electrocatalysts in these reactions. Herein, we report the growth of manganese sulfide nanoparticles on three-dimensional graphene, through an easy, progressive successive ionic layer adsorption and reaction (SILAR) method, where manganese sulfide nanoparticles (MnS-NPs), diameter of 4–5 nm are homogeneously decorated on the 3D graphene matrix. The formed hybrid shows improved HER activity in 0.1 M KOH when compared to bulk MnS. Moreover, MnS-NPs@3DG is also active in catalyzing ORR, qualifying it as a new type of bifunctional electrocatalyst in alkaline media.
研究领域:
材料科学
·
能源化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）