CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Shuxiang Xu,Shuyi Zhou,Luoyijun Xie,Wenlong Dou,Rongjun Zhang,Bingxia Zhao,Yang Xu,Xuemei Fu,Miaomiao Yuan
Due to the heterogeneous and complex tumor microenvironment (TME), it remains challenging to effectively treat solid tumors with monotherapy. The development of a versatile nanomaterial strategy for synergistic chemodynamic/photodynamic/photothermal therapies has the potential to overcome this challenge. Herein, we designed and synthesized NiS 2 /FeS 2 hybrid nanoparticles (NiS 2 /FeS 2 NPs), which are further modified with polyvinyl pyrrolidone (PVP) to improve their biocompatibility. PVP-NiS 2 /FeS 2 NPs exhibit synergistic activities of chemodynamic therapy (CDT), photodynamic therapy (PDT), and photothermal therapy (PTT) with multimodal imaging capabilities. With the presence of Fe 2+ /Fe 3+ and Ni 2+ /Ni 3+ redox couples, the PVP-NiS 2 /FeS 2 NPs exhibit GSH peroxidase-like reactivity and trigger Fenton reaction, leading to robust ·OH generation and pyroptosis/ferroptosis after near infared irradiation (NIR). In response to the PVP-NiS 2 /FeS 2 NPs and PVP-NiS 2 /FeS 2 NPs + NIR treatment, the breast tumors formed in the syngeneic BABL/c mice were eliminated and their metastases suppressed by inhibiting the EMT pathway. Consistent with the apparent involvement of these programmed cell death pathways in activating tumor immunity, we demonstrate that PVP-NiS 2 /FeS 2 NPs + NIR can eliminate metastatic tumors in an immune system dependent manner. Therefore, PVP-NiS 2 /FeS 2 NPs represent a promising strategy to treat metastatic breast cancer.
研究领域:
纳米技术
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癌症治疗
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生物医学工程
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材料科学
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肿瘤学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2020
·Vol. 31
·期 12
·9946-9959
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IF 2.22
Liu Jian,Xu Ying-Ge,Kong Ling-Bin
The CoS 2 /NiS 2 -RGO composite with excellent electrochemical performance is first used as an anode material for sodium-ion capacitors (SICs) and sodium-ion batteries (SIBs). CoS 2 /NiS 2 -RGO is prepared by one-step hydrothermal process. In half-cell tests, CoS 2 /NiS 2 -RGO exhibits a remarkably high reversible capacity of 473.7 mA h g −1 after 50 cycles at the specific current of 100 mA g −1 . SICs show an impressive energy density of 139.1 W h kg −1 at the power density of 14,000 W kg −1 , which has great advantages compare to the commercial lithium ion batteries. SIBs also show a good capacity of 50 mA h g −1 at a rate of 5 °C. The excellent electrochemical performance of CoS 2 /NiS 2 -RGO is mainly attributed to the heterostructure formed by CoS 2 and NiS 2 , which effectively improves the electrical conductivity. On the other hand, there is a good synergistic effect between RGO and CoS 2 /NiS 2 . The large specific surface area of RGO makes CoS 2 /NiS 2 disperse uniformly on the surface of RGO, preventing agglomeration and reducing particle size of CoS 2 /NiS 2 . In turn, CoS 2 /NiS 2 acting on the surface layer of RGO hinders the secondary overlap and increases the electrical conductivity of RGO. The mixed bimetallic sulfide/RGO system is expected to promote the rapid development of sodium storage devices.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 28
·15807-15819
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IF 12.732
Wenxi Zhao,Xiaodeng Wang,Xiaoqing Ma,Luchao Yue,Qian Liu,Yonglan Luo,Yang Liu,Abdullah M. Asiri,Xuping Sun
Pseudocapacitive electrochemical Na+-storage has been highlighted as one of the exploitable strategies for overcoming the sluggish diffusion-limited redox kinetics due to the effective structural preservation and fast ion-adsorption/desorption at the surface or quasi-surface of electrode materials. However, exploiting pseudocapacitive hosts with a micro–nano hierarchitecture and further achieving competitive pseudocapacitive contributions are still in their infancy so far. Herein, a yolk–shell NiS2/CuS hollow microspherical architecture with superb kinetically pseudocapacitive features was successfully constructed through an in situ hydrothermal sulfidation and subsequent ion-exchange route using Ni-based bimetallic (NiZn) organic frameworks (NiZn-MOFs) as a template precursor. As expected, the strongly synergistic coupling effect and hollow structural characteristic of the NiS2/CuS heterostructure enabled fast charge transfer and Na+ immigration, as well as the release of the mechanical stress/strain induced by the conversion reaction, and not unexpectedly, the NiS2/CuS electrode afforded extraordinary Na+-storage capability, including a remarkable specific capacity of 410.9 mA h g−1 after 750 cycles at 2.0 A g−1, excellent rate capability, and prolonged cyclability in terms of a remarkable 283.4 mA h g−1 even after 4200 cycles at 20.0 A g−1. More significantly, the kinetic analysis demonstrated that the electrochemical charge storage of the NiS2/CuS electrode manifested considerable pseudocapacitive contributions at all rates (90.0% to 96.9%), distinctly outperforming the previously reported NiS2-/CuS-based anodes. Furthermore, the density functional theoretical calculations suggested a fast Na+-transport kinetics and enhanced antibonding state energy level and Na2S adsorption energy due to the electronic redistribution and lattice distortion in the NiS2/CuS heterointerfaces.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
DOI
高影响因子
CATALYSIS TODAY
·
2020
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IF 5.825
Lei Wang,Haiyan Liu,Yu Fan,Pei Yuan,Deqi Huang,S. Ted Oyama,Tinghai Wang,Xiaojun Bao
In alumina-based catalysts the properties of the alumina support directly influence the structure (size, morphology, orientation, etc.) of the resulting active phase and ultimately determine the performance of the final catalysts. This paper presents a facile and efficient method for γ-Al 2 O 3 to simultaneously expose {111} facets with strong acidity and {110} facets with moderate basicity. It is shown that the metal oxides NiO x and MoO x can be selectively deposited and subsequently sulfided on the respective facets to form a NiS 2 -MoS 2 /Al 2 O 3 catalyst with substantially enhanced activity for thio-etherification reaction. By cooperative action of the active sites on the newly exposed facets, the catalyst is shown to have superior activity over a conventional NiMoS/Al 2 O 3 catalyst in the thio-etherification reaction between ethanethiol and isoamylene (2-methyl-2-butene) to yield ethylamyl thioethers. Our findings show that tuning the physicochemical properties via crystal facet engineering and inducing cooperative catalysis via preferential deposition of active metals open a novel avenue for the rational design and synthesis of high performance catalysts.
研究领域:
催化化学
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材料科学
✓ 已验证
DOI
高影响因子
Energy Technology
·
2022
·Vol. 10
·期 4
·2100885
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IF 4.149
Jing Hu,Xin-Liang Wang,Hao Guo,Ming Yang,Jin-Xiu Yuan,Ying Chu,Li-Li Zhao
Transition metal sulfide is the most widely used cathode material for thermal batteries. The development of modern weapons requires higher quality and output of transition metal sulfide cathode materials. However, the current synthesis processes have some limitations for large-scale industrial production due to the long production cycle and low production efficiency. Herein, by controlling the synthesis temperature and adopting a high-temperature solid-state method, sulfide FeS 2 , CoS 2 , and NiS 2 with single-phase and good crystalline structure are synthesized. This method with a simple production process, short production cycle, and high single output is suitable for engineering production. Hence, guidance for large-scale industrial synthesis of pure phase FeS 2 , NiS 2 , and CoS 2 is provided, embodying important scientific significance and application value.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 12
·7791-7806
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IF 12.732
Yunping Wu,Wei Wei,Tianyi Ding,Sheng Chen,Rui Zhai,Caihe Bai
Two-dimensional (2D) heterostructures combine the advantageous features of different 2D materials and represent advanced electrode architectures for the development of efficient energy storage devices. However, common 2D heterostructures made by stacking different 2D sheets in van der Waals (vdW) contact impose obvious limitations in light of the energy storage performance. Here, we shed light on how heterointerface conditions exert a great influence on the electrochemical properties of the heterostructured electrode and provide an example to modulate the interface contact mode via sandwiching unique g-C3N4 mesh (m-g-C3N4). We find that such m-g-C3N4 bonded heterointerfaces can greatly increase the electrochemical activity, redox conversion kinetics and structural integrity of the constituent component (NiS2), manifesting excellent electrochemical performance with respect to vdW heterostructures. Experimental characterization along with theoretical simulations demonstrates that the synergistic effects of the mesh-bonded interfacial contact and plenty of in-between porous channels contribute to superior electrochemical performance. This study directs attention to elaborate interface engineering toward high-performance energy storage and paves the way for designing and manufacturing of advanced heterostructured electrodes for supercapacitors, batteries and other hybrid devices.
研究领域:
材料科学
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能源存储技术
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电化学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Xu Han,Xueying Lu,Yuru Zhou,Dan Zhao,Tianhao Wang,Panpan Tao,Wenyu Fan,Jing Hu,Haijin Li,Yitao He
Efficient and corrosion-resistant electrocatalysts are essential for the oxygen evolution reaction (OER), particularly in chloride-containing electrolytes such as seawater. Herein, a self-supported NiS 2 –MnS heterostructured catalyst grown on nickel foam (NiS 2 –MnS/NF) was fabricated through a combined electrodeposition–sulfidation strategy. Structural characterizations reveal the formation of a nanosheet-based heterostructure with uniformly distributed elements and abundant exposed active sites. In 1 M KOH electrolyte, the NiS 2 –MnS/NF electrode requires overpotentials of 269 and 355 mV to achieve current densities of 20 and 100 mA cm −2 , respectively, together with a small Tafel slope of 36 mV dec −1 and stable operation for 100 h. In simulated seawater electrolyte containing 1 M KOH and 0.5 M NaCl, the catalyst still maintains excellent OER activity, delivering overpotentials of 236 and 320 mV at the same current densities. The improved catalytic performance is attributed to the electronic interaction between NiS 2 and MnS phases and the structural evolution of the catalyst during OER. Post-OER characterizations indicate that the sulfide precursor undergoes in situ reconstruction to form NiOOH and MnOOH active species, which contributes to the enhanced catalytic activity. This work provides a promising strategy for designing efficient and corrosion-resistant electrocatalysts for seawater electrolysis.
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Jingui Han,Zhitao Shao,Yaozu Jia,Peiyao Liu,Zuqi Han,Xitian Zhang,Lili Wu,Xinzhi Ma
The practical applications of lithium–sulfur (Li–S) batteries have been significantly impeded by the heavy shuttle effect and slow bidirectional conversion of lithium polysulfides (LiPSs). In this study, a hierarchical NiS2/1T-MoS2 nanocomposite is utilized as a functionalized separator modifier to overcome the challenges. The MoS2 nanosheets are vertically and uniformly aligned on the surface of NiS2 microspheres, constructing a hierarchical yolk–shell structure. The NiS2 support not only significantly reduces the agglomeration of MoS2 nanosheets but also effectively stabilizes their 1T-phase structure, which is highly desirable for high-performance Li–S batteries. The Li–S battery with the NiS2/MoS2–CNT-modified separator delivers an excellent initial specific capacity of 1228 mA h g–1 at 0.2 C with a high-capacity retention of 85% over 100 cycles. It even achieves a discharge capacity of 722 mA h g–1 at 5 C. Furthermore, it maintains remarkable cycling stability with only 0.051% capacity decay per cycle during the long-term cycles at 1 C. This study not only provides a viable scheme for separator modifier design toward advanced Li–S batteries but also offers a universal route for stabilizing the 1T-phase structure of MoS2.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2025
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IF 2.6
Han Jingjing,Ju Xiaocheng,Xiao Yi,Liang Xinyu,Zhang Guoli,Jia Xiaoxia,Yang Zhewei,Pan Yuede
Nickel disulfide (NiS 2 ) is a promising electrochemical storage material for varied charge carrier ions. However, previous preparation approaches for NiS 2 -based materials have been haunted by the low utilization efficiency of the sulfur atoms in the precursor and the detrimental byproduct of SO 2 . Inspired by the unique crystal structure of NiS 2 , composed of Ni 2+ cations and S 2 2− anions, herein, we develop an environmentally friendly synthesis method for crystalline NiS 2 with 100% utilization efficiency of precursor sulfur atoms through the precipitation reaction between Ni 2+ and S 2 2− , which can happen at varied temperatures and in different solvents. Furthermore, a NiS 2 /S composite is in situ formed by the co-precipitation reaction between Ni 2+ and S 8 2− , which can also occur at varied temperatures and in different solvents. As demonstration, both the NiS 2 and NiS 2 /S have been applied for the electrochemical storage of nonaqueous Na + ions and aqueous Cu 2+ ions. Owing to the in situ formed elemental sulfur with higher theoretical capacity and the considerable conductivity provided by the framework of NiS 2 in the NiS 2 /S composite, it exhibits superior electrochemical performance compared to NiS 2 in terms of capacity, rate, and cycling stability. The polysulfide anions produced in the process of nonaqueous sodium ion storage enhance the electrochemical kinetics, and the sulfur can be converted into Cu 2 S through the intermediate of CuS in the process of aqueous copper ion storage. The sodium ion storage capacity of NiS 2 /S is retained at 578.5 mAh g −1 after 375 cycles at 2.0 A g −1 , and its reversible copper ion storage can sustain a long life of 1500 cycles at 1.0 A g −1 . Our work paves the way towards liquid-state inorganic synthesis of metal sulfides composed of metal cations and disulfide anions.
研究领域:
材料科学
·
环境科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2026
·Vol. 9
·期 33
·15984-15997
·
IF 5.8
Wang Bo,Wang Tong,He Yidan,Zhang Xiaojuan
Dielectric constant modulation and
heterointerface engineering
are considered efficacious strategies to construct high-performance
electromagnetic wave (EMW) absorption. Herein, a series of dual-phase
nickel sulfide (NiS 2 /Ni 3 S 4 ) hierarchical
microspheres decorated with diverse contents of silicon dioxide (SiO 2 ) nanospheres have been successfully synthesized via the Stöber
method and subsequent solvothermal process. Profiting from the rational
dielectric constant regulation, the NiS 2 /Ni 3 S 4 /SiO 2 -1 composites achieve an optimal RL
value of −66.6 dB at 2.09 mm and the broadest effective absorption
bandwidth (EAB) of 6.28 GHz at 2.18 mm within a filler loading of
20 wt %, far superior to that of pure NiS 2 /Ni 3 S 4 composites. When the content of absorber increases
to 25 wt %, the microwave absorption properties of NiS 2 /Ni 3 S 4 /SiO 2 -1 composites are the
utmost, further verifying the importance of a reasonable addition
amount of SiO 2 nanospheres. It is concluded that the introduction
of SiO 2 nanospheres can not only expand the heterogeneous
interface but also improve impedance matching by regulating the dielectric
constant. Furthermore, the results of radar cross section (RCS) simulation
demonstrate the dissipative capability for radar signals in practical
applications. The findings furnish a viable pathway for exploring
broadband microwave-absorbing materials.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2025
·
IF 4.1
Zhanyu Ding,Yu Ma,Xuanhao Zhang,Rizwan Haider,Qiqi Jiao,Jiemei Yu,Yanlu Mu,Taizhong Huang,Xianxia Yuan
Development of non-precious metal-based oxygen evolution reaction (OER) catalysts is essential for commercial scale electrochemical water splitting. In this paper, a carbon nanotube (CNT), which can enhance the conductivity of the catalyst, supported nickel sulfide (NiS 2 ) and nickel oxyhydroxide (NiOOH) hybrid (NiS 2 @NiOOH/CNT) based catalyst is prepared. The in-situ conversion of partial NiS 2 to NiOOH not only increased the active catalytic sites but also decreased the OER overpotential to 195 mV at the current intensity of 10 mA/cm 2 . The long-time running stability test results showed that the current density almost no losses detected after 10 h continuous operation at a fixed potential of 1.61 V (vs. RHE) in 1 M KOH. The density functional theory (DFT) calculations proved that the NiS 2 @NiOOH/CNT catalyzed OER follows the lattice‑oxygen-mediated (LOM) mechanism, which illustrated the mechanism for the high catalytic performance for OER. This paper provides a novel way to design high performance electrocatalysts for OER from nickel based materials.
研究领域:
材料科学
·
电化学
·
理论计算
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2025
·
IF 17.7
Chao Feng,Jiaxin Shao,Hanyang Wu,Afaq Hassan,Hengpan Yang,Jiaying Yu,Qi Hu,Chuanxin He
It is well known that transition metal sulfides (TMS) (i.e., NiS 2 ) undergo electrochemical reconstructions to generate highly active Ni 3 S 2 during the process of hydrogen evolution reaction (HER) under overpotentials of < 500 mV. However, at higher overpotentials, Ni 3 S 2 can theoretically be further restructured into Ni and thus form Ni/Ni 3 S 2 heterogeneous interface structures, which may provide opportunities to further enhance HER activity of NiS 2 . Here, we selected NiS 2 as a model electrocatalyst and investigated the influence of the reconstruction results induced from regular to ultrahigh overpotentials on its electrocatalytic hydrogen precipitation performance. The experimental results showed that the most significant enhancement of hydrogen precipitation performance was obtained for the NiS 2 @CC-900 (900 means 900 mV overpotential) sample after the ultra-high overpotential induced reconstruction. Compared with the initial overpotential of 161 mV (10 mA cm –2 ), the overpotential of the reconstructed sample reduced by 67 mV (42%). The characterization results showed that an ultra-high overpotential of 900 mV induced deep reconstruction of NiS 2 , formed highly reactive Ni/Ni 3 S 2 heterogeneous interfaces, which is more conducive to improved HER performance and match well with theoretical calculations results. We demonstrated ultrahigh overpotential was an effective strategy to induce NiS 2 deeply reconstruction and significantly improve its HER performance, and this strategy was also applicable to CoS 2 and FeS 2 . This study provides an extremely simple and universal pathway for the reasonable construction of efficient electrocatalysts by induced TMS deeply reconstruction.
研究领域:
材料科学
·
电化学
·
催化
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）