Batteries-Basel
·
2025
·Vol. 11
·期 3
·83
·
IF 4.8
Yongli Tong,Baoqian Chi,Yu Jiang,Xiang Wu
It is crucial for energy storage devices to construct electrode materials with excellent performance. However, enhancing energy density and cycling stability for supercapacitors is a significant challenge. We successfully synthesized CoNi2S4@Ni(OH)2nanosheets on the surface of Ni foam substrate by a two-step hydrothermal approach. The obtained products exhibit a remarkable areal capacitance of 1534 F g−1at a current density of 1 A g−1. Moreover, even after 10,000 cycles, the specific capacitance remains 90% of its initial value, highlighting the exceptional long-term stability and durability. Furthermore, an asymmetric supercapacitor (ASC) device incorporating the CoNi2S4@Ni(OH)2material shows remarkable electrochemical performance. It delivers an energy density of 58.5 mW h g−1at a power density of 2700 W kg−1. The outstanding performance mainly arises from the selection of materials, the design of the structure, and the synergistic interaction between the materials. The result suggests that this material holds great potential as an energy storage material.
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Nano Today
·
2024
·
IF 13.2
Fei Sun,Shipeng Ning,Xiaoyuan Fan,Xia Wang,Ziqi Lin,Jian Zhao,Yutong Lu,Fengxiang Liu,Lili Du,Hao Zhang,Wenwen Shen,Jiaxin Lin,Zhonggui He,Kaiyuan Wang,Jin Sun
Immunotherapy for triple-negative breast cancer (TNBC) is hindered by its immunologically "cold" microenvironment, reducing treatment efficacy. Converting cold tumors into hot ones can significantly enhance the efficacy of immunotherapy. Nevertheless, the tumor extracellular matrix-associated physical barriers impede the infiltration of immunomodulating agents. Our previous research suggested that extracellular vesicles (EVs) secreted in situ by tumor cells could mediate the intercellular transport and deep infiltration of antitumor drugs. However, EVs’ application faces obstacles such as inefficient delivery, lack of specificity, low production yields, and manufacturing inconsistencies. Based on this, we explored artificial cytomembrane nanovesicles (NVs) as the biomimetics of EVs. Herein, NVs are genetically engineered with membrane fusion-promoting protein VSVG to form VSVG-NVs (V-NVs). The calcium ionophore A23187 and plasmid encoding TNF-α with Lamp2b are loaded into V-NVs (V-NVs/T+A) using electroporation technology. The fusogenic VSVG component facilitates the integration of NVs with the target cancer cells and further incorporation into secreted EVs. The A23187 enhances EVs secretion by increasing intracellular calcium level. This synergistic approach ensures efficient intracellular delivery of TNF-α through EVs, facilitating deep tumor infiltration and remodeling of the immune microenvironment. As expected, the EV-hitchhiking strategy for cascade tumor deep penetration and immune microenvironment modulation demonstrates significant potential to enhance cancer immunotherapy.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Yandai Lin,Xinru Kong,Zhe Liu
Nitric oxide (NO)-based gas therapy has attracted increasing attention as a promising approach for tumor treatment, but elevated levels of glutathione (GSH) in the tumor microenvironment significantly limit their therapeutic effectiveness. In this study, a type of engineered photoactivatable nanomicelles Ce6/NI@PEP@HA (CNPH) were developed for combinational photodynamic and NO gas therapy. CNPH was capable of targeted accumulation to tumors, where it depleted GSH and released NO to effectively produce reactive oxygen species (ROS) with oxidative damage under laser irradiation at 660 nm. The GSH consumption induced the deactivation of glutathione peroxidase activity, leading to enhanced accumulation of toxic lipid peroxide and enabled a ferroptosis-like therapeutic outcome. Additionally, the effective production of NO and ROS resulted in mitochondrial dysfunction, characterized by the disruption of mitochondrial membrane potential and decreased adenosine triphosphate concentration. The in vivo animal experiments indicated that the combinational photodynamic and NO gas therapy achieved a tumor inhibition of 89.1%, and it has proven to be a more effective tumor therapy strategy in contrast to any single modality. In consequence, ferroptosis-like combinational tumor therapy has opened up a new horizon to a cutting-edge and noninvasive paradigm for advanced tumor treatments.
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Journal of Materials Chemistry A
·
2025
·
IF 9.5
Jiawen Hu,Linwen Jiang,Jiawei Jin,Hang Liu,Anhua Wu,Xiaofeng Zhang
High-entropy alloys (HEAs) are important candidates for efficient electromagnetic-wave absorbing (EMA) materials, but the further design of HEA absorbers with harmonized impedance matching and excellent environmental stability remains a major challenge. In this study, a novel carbonitriding process based on a mechanochemical method is employed to prepare carbonitrided FeCoNiMn HEAs by utilizing a cyano-compound (C3H2N2) as a source of C and N. The introduction of C and N effectively optimizes the permittivity of FeCoNiMn HEAs, achieving the equilibrium of electromagnetic matching and thus improving the EMA performances (especially the bandwidth). The carbonitrided FeCoNiMn HEAs exhibit significant reflection loss (RL) and absorption capability. FeCoNiMnM0.04 achieves a minimum RL of −65.8 dB at 3.44 GHz. FeCoNiMnM0.08 achieves an ultra-broad effective absorption bandwidth (EAB) of up to 7.76 GHz at 1.62 mm, covering the entire Ku-band. In addition, the carbonitrided FeCoNiMn HEAs exhibit excellent corrosion resistance and good mechanical properties, ensuring their suitability for harsh environments. This study highlights the potential of carbonitrided HEAs prepared using a cyano-compound as highly efficient EMA materials, and provides a reference for optimizing the electromagnetic matching of HEAs.
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Metals
·
2024
·Vol. 14
·期 10
·1142
·
IF 2.6
Jiabao Li,Yang Cai,Jianling Huang,Shiqian Zhao,Deliang Cheng
Mg-based alloy anodes suffer from severe corrosion in alkaline electrolytes, which substantially impedes their cycle life and thereby limits their suitability as anode materials for nickel–metal hydride (Ni-MH) batteries. This work modifies the conventional 6 M KOH electrolyte by adding 0.1 M Al2(SO4)3·18H2O. The electrochemical hydrogen storage properties of Mg0.45Ti0.05Ni0.50alloy in this electrolyte and its microstructural evolution during cycling are studied. In the 6 M KOH + 0.1 M Al2(SO4)3·18H2O electrolyte, a protective layer consisting of Mg2Al(OH)7is formed on the surface of the Mg0.45Ti0.05Ni0.50alloy anode during charge/discharge cycling instead of Mg(OH)2, effectively preventing further corrosion and improving its cycle life. The Mg0.45Ti0.05Ni0.50alloy anode delivers a maximum discharge capacity of 479.0 mAh g−1and maintains 318.4 mAh g−1after 30 cycles in the 6 M KOH + 0.1 M Al2(SO4)3·18H2O electrolyte, which is significantly superior to that achieved in the 6 M KOH electrolyte (471.1 mAh g−1and 201.8 mAh g−1, respectively). This work provides a new strategy for improving the cycle stability of Mg-based alloy anodes.
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Advanced Science
·
2024
·Vol. 11
·期 41
·2405544
·
IF 14.3
Kejun Wang,Siyuan Chen,Guanyu Bao,Tao Sun,Junqiu Zhang,Daobing Chen,Lining Sun,Zhiwu Han,Chao Liu,Qian Wang
Numerous plants evolve ingeniously microcantilever-based hairs to ultra-sensitively detect out-of-plane quasi-static tactile loads, providing a natural blueprint for upgrading the industrial static mode microcantilever sensors, but how do the biological sensory hairs work mechanically? Here, the action potential-producing trigger hairs of carnivorous Venus flytraps ( Dionaea muscipula ) are investigated in detail from biomechanical perspective. Under tiny mechanical stimulation, the deformable trigger hair, composed of distal stiff lever and proximal flexible podium, will lead to rapid trap closure and prey capture. The multiple features determining the sensitivity such as conical morphology, multi-scale functional structures, kidney-shaped sensory cells, and combined deformation under tiny mechanical stimulation are comprehensively researched. Based on materials mechanics, finite element simulation, and bio-inspired original artificial sensors, it is verified that the omnidirectional ultra-sensitivity of trigger hair is attributed to the stiff-flexible coupling of material, the double stress concentration, the circular distribution of sensory cells, and the positive local buckling. Also, the balance strategy of slender hair between sensitivity and structural stability (i.e., avoiding disastrous collapse) is detailed revealed. The unique basic biomechanical mechanism underlying trigger hairs is essential for significantly enhancing the performance of the traditional industrial static mode microcantilever sensors, and ensure the stability of arbitrary load perception.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Yanling Wang,XueYi Zhao,YaXiao Cui,Xianan Wang,Yu Wang,Yanru Liu,Mingming Zhang,Lei Wang
The keys to future energy transformation is the development of stable and efficient non-precious electrocatalysts . Here, we demonstrate a novel synthesis method for ultra-thin carbon coated Ni 3 N nanosheets supported by carbon array with bionic flower structure in-situ grown on nickel foam (C@Ni 3 N@C/NF), in which the hollow carbon rods supporting the carbon-coated Ni 3 N nanosheets at the bottom. And the hollow carbon rod can accelerate the transport of electrons to the ultra-thin 2D Ni 3 N nanosheet through a one-dimensional directional structure. The obtained C@Ni 3 N@C/NF as a monometallic nickel-based catalyst exhibits excellent HER electrocatalytic performance in 1 M KOH, which only need the overpotential of 60 mV to reach the current density of −10 mA cm −2 . More importantly, this method can provide new ideas for the synthesis of other non-precious metal electrocatalysts with biomimetic structure.
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CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xu Chen,Yunrui Duan,Huanglin Dou,Wensheng Zhang,Xiaomin Wang
The development of transition metal phosphides (TMPs) electrocatalysts with appropriate binding strength towards intermediates and resistant to chlorine in alkaline seawater electrocatalysis remains a formidable challenge. Herein, an approach for manipulating electron redistribution in Ni 2 P/Ni 5 P 4 treated by Co cationic doping engineering (denoted as Act-Co-NiPx) is proposed, exhibiting excellent catalytic activities and stability toward HER in alkaline seawater solution. First-principles calculations demonstrate that the Co doping can effectively adjust the electron redistribution of Ni 2 P/Ni 5 P 4 , resulting in a reduction in the hydrogen adsorption free energy for HER and an acceleration in the interfacial charge transfer. Furthermore, the enhanced Cl - adsorption energy avoids the toxicity of Cl - to the active sites in alkaline seawater splitting. Consequently, the resulting Act-Co-NiPx catalyst demonstrates remarkable HER performance with low overpotentials of 77 and 97 mV at a current density of 10 mA cm −2 in both 1.0 M KOH and 1.0 M KOH+Seasalt electrolytes. Furthermore, the seasalt electrolyzer assembled from Act-Co-NiPx achieves the low cell voltage of 1.63 V at 10 mA cm −2 . This work demonstrates a feasible method for designing cost-effective and stable catalysts with excellent selectivity via regulating the electronic structure of TMPs for seawater electrolysis.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Ali Asghar,Muhammad Shahid Rashid,Muhammad Saqib,Karim Khan,Zhiyuan Liu,Changyong Liu,Zhangwei Chen
The quest for sustainable energy storage solutions has led to the development asymmetric supercapacitors (ASCs) that promise high specific power and energy. However, the challenge lies in synthesizing electrode materials that can meet these demands while maintaining stability. Herein, we introduce a paradigm-shifting approach by harnessing the power of direct ink writing (DIW) 3D printing to fabricate SiOC/Bi 2 O 3 nanocomposites for ASCs. Through a facile hydrothermal synthesis, we prepared SiOC/Bi 2 O 3 nanocomposites that, when 3D printed (3DP), delivered an impressive energy density of 98.2 Wh/kg and a power density of 882.4 W/kg at 1 A/g. These ASCs exhibited remarkable cyclic stability, retaining 95.55 % of their capacitance after 5,000 cycles. The synergy between the high surface area of DIW-printed SiOC/Bi 2 O 3 and its capacitive properties satisfies the high-voltage profile requirement and enhances both specific power and energy. Our study paves the way for a new generation of ASCs with superior electrochemical performance, offering a sustainable and environmentally friendly solution to the future of energy storage. This work stands at the forefront of merging advanced material science with cutting-edge manufacturing techniques, showcasing the potential of 3D printing to revolutionize the energy storage landscape.
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ADVANCED MATERIALS
·
2024
·Vol. 36
·期 39
·2404772
·
IF 27.4
Ning Sun,Zhichuan Zheng,Zhuangzhuang Lai,Junjie Wang,Peng Du,Tianping Ying,Haifeng Wang,Jianchun Xu,Runze Yu,Zhiwei Hu,Chih-Wen Pao,Wei-Hsiang Huang,Ke Bi,Ming Lei,Kai Huang
While high-entropy alloys, high-entropy oxides, and high-entropy hydroxides, are advanced as a novel frontier in electrocatalytic oxygen evolution, their inherent activity deficiency poses a major challenge. To achieve the unlimited goal to tailor the structure–activity relationship in multicomponent systems, entropy-driven composition engineering presents substantial potential, by fabricating high-entropy anion-regulated transition metal compounds as sophisticated oxygen evolution reaction electrocatalysts. Herein, a versatile 2D high-entropy metal phosphorus trisulfide is developed as a promising and adjustable platform. Leveraging the multiple electron couplings and d–p orbital hybridizations induced by the cocktail effect, the exceptional oxygen evolution catalytic activity is disclosed upon van der Waals material (MnFeCoNiZn)PS 3 , exhibiting an impressively low overpotential of 240 mV at a current density of 10 mA cm −2 , a minimal Tafel slope of 32 mV dec −1 , and negligible degradation under varying current densities for over 96 h. Density functional theory calculations further offer insights into the correlation between orbital hybridization and catalytic performance within high-entropy systems, underscoring the contribution of active phosphorus centers on the substrate to performance enhancements. Moreover, by achieving electron redistribution to optimize the electron coordination environment, this work presents an effective strategy for advanced catalysts in energy-related applications.
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INORGANIC CHEMISTRY
·
2024
·
IF 4.3
Minmin Wang,Li Zhou,Zukun Li,Hao Xu,Yanfeng Tang
Developing highly active, highly stable, and cheap electrocatalysts for water splitting is of great significance for hydrogen production. Herein, we report an amorphous Ni(OH)2-clothed transition Ni8P3 catalyst, in which the amorphous Ni(OH)2 shell provides catalytic active sites and serves as a proton conductive encapsulation layer to ensure efficient proton supply to the active Ni8P3 sites. As expected, the Ni8P3@Ni(OH)2 catalyst exhibits significant water decomposition performance at low and high current densities of 10, 100, and 1000 mA cm–2 at 1.45, 1.71, and 2.21 V, respectively, which is comparable to those of commercial electrocatalysts. In particular, the prepared Ni8P3@Ni(OH)2 electrodes possess exceptional long-term durability (200 h) at high current (over 1 A). The significantly improved water-splitting activity and durability in alkaline medium are expected to make them attractive catalyst materials to produce renewable chemical fuels.
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DALTON TRANSACTIONS
·
2024
·Vol. 53
·期 31
·12936-12942
·
IF 3.5
Jiaqi He,Xin Deng,Wenting Sun,Wenjing Shang,Yongbing Lou,Jinxi Chen
To address the shortage of fossil energy, the development of affordable and efficient non-precious metal catalysts for oxygen evolution reaction (OER) from electrocatalytic water splitting is still a crucial challenge. Herein, the bimetallic NiFe metal–organic frameworks (MOFs) are synthesized by hydrothermal and electro-deposition. Benefiting from the synergistic effect of Fe and Ni, the catalyst demonstrates extraordinary activity, which exhibits favorable OER catalytic activity in 1 M KOH solution with an overpotential of 206 mV at 10 mA cm−2. Meanwhile, the obtained NiFe-NDC presents promising stability in the 20 h test at 50 mA cm−2.
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