CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Qing Gao,Zerui Ou,Xiangze Jia,Shahid Ahmed Junejo,Bin Zhang,Qiang Huang
Despite the good biological and antibacterial activities, the p-anisaldehyde is easy to evaporate or degrade during processing and storage. Herein, a new V -type starch-cyclodextrin composite carrier was constructed to efficiently encapsulate p-anisaldehyde in addressing the inherent disadvantages. The introduction of β-cyclodextrin (β-CD) enhanced the short- and long-range ordered structures of the composite carrier. The V -type starch-cyclodextrin composite ( V C30) exhibited the highest loading capacity of 142.01 mg/g for p-anisaldehyde, which was significantly higher than that of V -type starch (VS, 97.83 mg/g) and commercial β-CD (128.48 mg/g). The loading capacity of the V-type starch-cyclodextrin composite was positively correlated with its crystallinity and short-range order. The release rate of p-anisaldehyde was in the order of VC30 < β-CD < VS. Under non-cold chain daily storage (25 °C and 57 % relative humidity) for 2 weeks, the p-anisaldehyde of thymol released from complexes was 36 % (VC30), 49 % (β-CD), and 65 % (VS), respectively. Due to the high loading capacity and good sustained release properties, the noncontact preservation of high-value fruit by V C30 controlling p-anisaldehyde release successfully extended the shelf life of cherries from six to twelve days.
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DOI
PubMed
高影响因子
RARE METALS
·
2025
·
IF 11
Huang De-Xuan,Zhao Jian-Wei,Hu Xue-Lei,Liu Tong
Transition metal oxides have garnered significant attention as electrocatalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). However, their sluggish reaction kinetics and poor stability hinder commercial applications. Herein, we report the synthesis of a bimetallic cobalt manganese oxide, Co 0.99 Mn 2.01 O 4 (CMO), synthesized via a hydrothermal technique, which serves as a highly efficient bifunctional ORR/OER electrocatalyst owing to its impressive half-wave potential of 0.767 V and low overpotential of 1.677 V at 10 mA cm −2 . Theoretical calculations revealed that the d-band centers of Co 3d and Mn 3d in CMO, located at tetrahedral and octahedral sites, are positioned near the Fermi level, facilitating the adsorption of electrocatalytic intermediates. Furthermore, the distance between the Co 3d and O 2p band centers in CMO is smaller than that in Co 3 O 4 , and the distance between the Mn 3d and O 2p band centers in CMO is shorter than that in Mn 2 O 3 , indicating that the Co–O and Mn–O bonds in CMO exhibit greater covalency, significantly enhancing ORR/OER activity. Notably, CMO serves as an advanced air electrode material for rechargeable zinc-air batteries (ZABs), demonstrating improved charge–discharge performance with a low voltage gap of 0.87 V at 5 mA cm −2 , high peak power density of 124 mW cm −2 , and excellent cycle stability of over 540 h at 5 mA cm −2 . This superior ORR/OER activity, combined with the simple material combination, makes CMO a promising catalyst for rechargeable ZABs. Graphical
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高影响因子
Small
·
2025
·
IF 12.1
Yuyan Dong,Ligang Yuan,Linhui Tang,Zheng Zhang,Shibing Zou,Jianwei Chen,Xin Cui,Ning Li,Lei Shi,Keyou Yan
Perovskite's surface defects trigger deep level traps and energy misalignment, resulting in substantial interface recombination and energy loss in perovskite solar cells (PSCs). Herein, 9-fluoreneacetic acid (FAA), a self-assembled molecule (SAM), is employed to passivate the interface defects and modulate energy alignment. SAM modification reduces the defect density from 6.37 × 10 15 to 3.11 × 10 15 cm −3 and produces a p-type surface with an upward band bending, thus constructing a well-defined n-i-p heterojunction for efficient charge separation. Accordingly, the target PSC realizes 24.75% power conversion efficiency (PCE) and retains 92% for 1100 h during maximum power point tracking (MPPT) at room temperature. Furthermore, over 80% of initial PCE has been reserved after 2500 h aging in 25–30% relative humidity (RH). This SAM strategy is expected to enhance the efficiency and stability for n-i-p PSCs.
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DOI
PubMed
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·11574
·
IF 15.7
Zhang Xiaojian,Hao Lu,Xie Juxuan,Tan Zhaohong,Li Shuaiqi,Gan Chongwu,Xiong Wei,Duan Xianghao,Li Shuai,Xu Zishuo,Zhang Kai,Wang Yazhong,Tang Haoran,Huang Fei
Electrochromic devices enable dynamic modulation of light and heat, yet their broader adoption is hindered by limited color tunability, slow switching kinetics, and low coloration efficiency. Here, we present a complementary organic electrochromic device that addresses these challenges by employing dual conductive polymers: poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) and poly(benzodifurandione). The resulting device delivers exceptional performance, featuring a high optical contrast of 51% at 570 nm, ultrafast switching speeds (0.17/0.36 s for coloration/bleaching), a record-high coloration efficiency (1688 cm 2 C⁻ 1 at 550 nm), and excellent cycling stability over 10,000 cycles. By integrating the device with a semitransparent organic solar cell, we realize a fully self-powered smart window with reducing indoor temperatures by 7 °C. Furthermore, coupling the electrochromic filter with a 4 × 4 organic photodetector array featuring on-chip Fabry–Pérot cavities enables a miniaturized spectrometer with 7.2 nm spectral resolution. This multifunctional electrochromic platform seamlessly bridges smart-window technology and spectral sensing, paving the way for energy-efficient, and compact optoelectronic systems.
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DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Shuai Yuan,Jian Hu,Jin Yang
Conductive polyurethane (CPU) with excellent processability has broad prospects in the communication field. However, the poor thermal stability of polyurethane (PU) limits its application. To solve this problem, a type of CPU with heat resistance was synthesized from p-phenylene diisocyanate (PPDI), poly-(tetramethylene ether) glycol (PTMG), aniline trimer (AT), and subsequently doped with camphorsulfonic acid (CSA). Besides, both polydimethylsiloxane (PDMS) and polycarbonate diol (PCDL) were introduced into CPU backbones, and PPDI-based CPU (PCPU) was synthesized with a high reaction efficiency of 94%. The structure of PCPU was confirmed by FT-IR, 1 H NMR, and GPC. The microphase separation structure, thermal stability, mechanical properties, and conductive performances were investigated using multiple characterization techniques such as DSC, XRD, TGA, DMA, and so on. The addition of PDMS promoted microphase separation and significantly improved the thermal stability of PCPU. Meanwhile, introducing PCDL into soft segments might increase the hydrogen-bond content in the PU system. When the molar ratio of PTMG to PCDL is 3:1, the thermal stability and mechanical properties of PCPU can be maximized. Furthermore, the conductive segments composed of AT formed a spatial conductive network within the PCPU. Obviously, such highly heat-resistant PCPU showed considerable potential for being used in high-temperature environments.
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DOI
高影响因子
Materials Today Chemistry
·
2025
·
IF 6.7
Wenquan Liu,Yu Sun,B. Narsu,Liang Qiao,Jipeng Huang,Chang Q. Sun,Guiye Shan,Biao Wang
The escalating demand for energy harvesting technologies to power small wireless devices has intensified interest in triboelectric nanogenerators (TENGs), yet challenges in energy conversion efficiency and durability persist. In this study, we present a novel core-shell BaTiO 3 @P(VDF-TrFE) nanofiber (BT@PVFT NF) structure, developed to enhance the triboelectric performance of TENGs for wearable and portable electronic applications. The BT@PVFT NF were fabricated using coaxial electrospinning , combining the high dielectric constant of BT with the ferroelectric properties of PVFT to maximize surface charge density and energy conversion efficiency. The morphological, structural, and phase characteristics of the BT@PVFT NFs were thoroughly investigated, with significant findings on the enhancement of the β-phase of PVFT through the synergistic effects of the core-shell configuration and electrospinning process . The optimized TENG demonstrated remarkable electrical output, achieving peak output voltage of 450 V and power density of 80 μW cm −2 , alongside exceptional durability over 15,500 cycles. Furthermore, the device successfully powered commercial electronics and exhibited robust mechanical energy harvesting from human motion. This work not only advances the understanding of core-shell structures in energy harvesting but also highlights the potential of the BT@PVFT NFs for self-powered sensing applications, opening new pathways for the development of energy-efficient wearable technologies .
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高影响因子
CARBON
·
2025
·
IF 11.6
Jiaxin Dong,Zhigang Huang,Yingmei Fu,Guanxiong Liu,Ruslan Z. Valiev,Yuri V. Petrov,Yujie Feng,Dechang Jia,Vladimir E. Baulin,Aslan Yu Tsivadze,Yu Zhou,Baoqiang Li
Metal oxides with peroxidase (POD)-like and halogen peroxidase (HPO)-like catalytic activities effectively eliminate bacteria by catalyzing reactive oxygen species (ROS) production, including hydroxyl radicals (·OH) and hypobromous acid (HBrO)/hypochlorous acid (HClO). While metal phosphides generally exhibit higher catalytic activity than metal oxides, bimetallic compounds tend to show better catalytic activity than monometallic compounds. However, there is currently a lack of bimetallic phosphides nanozymes with enhanced POD- and HPO-like activities to selectively produce ·OH and HBrO/HClO for antibacterial applications. Here, FeCu–P/carbon dots (FeCu–P/CDs) nanozymes show multi-enzyme activity to catalyze ROS production for enhanced antibacterial activity. FeCu–P/CDs nanozymes demonstrate POD-like, HPO-like and superoxide dismutase (SOD)-like activities. POD-like activity of FeCu–P/CDs nanozymes with a specific activity of 37.9 U/mg is 8.2 times improved than Cu–P/CDs. FeCu–P/CDs nanozymes show enhanced antibacterial activity by catalyzing the production of ·OH and HBrO/HClO through dual pathways, respectively. Based on the POD-like catalytic pathway, FeCu–P/CDs nanozymes achieved antibacterial rates exceeding 99.9 % against E. coli and S. aureus at 25 μg/mL and 80 μg/mL, respectively, which are significantly higher than those of Cu–P/CDs and Fe–P/CDs. Based on the HPO-like catalytic pathway, FeCu–P/CDs nanozymes demonstrated antibacterial effects against E. coli and S. aureus , achieving an antibacterial rate of 98.7 % against E. coli at 400 μg/mL. This work will inspire the exploration of a variety of bimetallic species-phosphate/carbon nanomaterials with high catalytic activity to enhance antibacterial properties via multi-enzyme activity pathway.
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高影响因子
Advanced Materials Interfaces
·
2019
·Vol. 6
·期 14
·1900592
·
IF 4.713
Ya-Nan Sun,Ming-Li Zhang,Li Zhao,Zhu-Yin Sui,Zhen-Yu Sun,Bao-Hang Han
Oxygen reduction reaction (ORR) is the critical reaction in metal–air batteries and fuel cells. This reaction suffers from sluggish kinetics and use of Pt-based catalysts that are prohibitively expensive and in shortage of resource. Therefore, an alternative advanced metal-free catalyst for ORR is highly desired. Herein, a N, P dual-doped porous carbon (NPPC) with large surface area is obtained through the CO 2 activation of a novel N, P-doped aerogel (NPA). Ascribed to the CO 2 activation of NPA, NPPC possesses a large Brunauer–Emmett–Teller specific surface area (2850 m 2 g −1 ) and N, P dual doping. CO 2 activation as an environmentally friendly method with no corrosion can not only produce abundant micropores and mesopores in NPPC, but also provide a positive influence for the transformation of N species from pyrrolic N to pyridinic and graphitic N, which can promote the ORR activities. Therefore, compared with carbonized NPA, NPPC exhibits a higher ORR activity, including a larger transfer electron number (3.95 at 0.2 V vs reversible hydrogen electrode). Additionally, NPPC possesses a much better long-term stability compared with commercial 20 wt% Pt/C. This work gives an inspiration on the new strategy for preparing the future catalyst for ORR.
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2015
·
IF 2.711
Xiwei Zhang,Dan Hu,Zhenjie Tang,Dongwei Ma
Single ZnSe–ZnO nanowire axial p–n junction was fabricated by regioselectively oxidizing the p-type ZnSe NW in air. Pronounced current rectification behavior with on/off ratio of ∼50 and ideality factor of ∼1.7 were presented. The axial p–n junction also exhibited high sensitivity to UV light . A high performance UV light photodetector with a responsibility of ∼0.67 × 10 4 A W −1 , a gain of ∼2.3 × 10 4 and a detectivity of ∼4.1 × 10 13 cm Hz 1/2 W −1 were elucidated based on this axial p–n junction. This new method is expected to construct more nano-devices based on one-dimensional semiconductor nanostructures.
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DOI
高影响因子
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
·
2021
·Vol. 100
·期 11
·3381-3394
·
IF 2.007
Lin Li,Shizhan Sheng,Huihua Wang,Tianpeng Qu,Dong Hou,Deyong Wang,Minqi Sheng
Ni-P alloys have been successfully electrodeposited in the choline chloride and ethylene glycol with a molar proportion of 1:2(CE) electrolyte and their activities toward hydrogen evolution reaction (HER) have been also evaluated. The electrodeposition of Ni-P alloy follows a co-deposition process, and the bulk growth of which depends on an instantaneous nucleation under diffusion control. The morphologies of Ni-P alloys are significantly influenced by the P content, and low P content can lead to a smooth surface. As expected, Ni-9.0 wt.% P alloy shows an impressive HER catalytic performance with a Tafel slope (b) of 72.9 mV dec −1 and an overpotential of 105 mV at 50 mA, in agreement with its large ECSA ( C dl = 3.25 mF cm −2 ) and small interface charge-transfer resistance. More interestingly, Ni-9.0 wt.% P alloy exhibits a sustainable catalytic activity toward HER after 1000 cycling test with a tiny potential decline of ~10 mV at 100 mA cm −2 . Such a striking HER activity of Ni-9.0 wt.% P alloy can be attributed to the synergistic effect among the induced active sites from lattice contraction, negatively charged P incorporation, and a mixed nanometre crystal and amorphous structure. Thus, Ni-P alloy electrodeposited in a CE-based electrolyte can be used as a promising electrode material with high HER activity in alkaline solutions for hydrogen production.
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高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2016
·
IF 2.139
Yun Chen,Yali Hao,Wei Huang,Yan Ji,Wenzhong Yang,Xiaoshuang Yin,Ying Liu,Xiang Ling
Ni-P-nano-Al 2 O 3 composite coatings on the mild steel were obtained by adding Al 2 O 3 nanoparticles into the traditional electroless Ni-P bath. Cationic and anionic surfactants were used to prevent the agglomeration of the incorporated nano-Al 2 O 3 . Surface morphology , compositions and microstructures of the coating were studied using scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), and X-ray diffraction (XRD) as well. Corrosion resistances of the modified mild steel samples were evaluated in 3.5 wt.% NaCl solution by electrochemical impedance spectroscopy (EIS). The results showed that compared to the pure Ni-P coating on the mild steel, the coating formed in the bath with 6 g/L nano-Al 2 O 3 performed the highest resistance. Under the optimal conditions, the adding of anionic surfactant (SDBS) improved the anti-corrosion performance of the samples further, while the addition of cationic surfactant led to a worse corrosion resistance. The potential mechanism was that anionic surfactant molecules would contact with active sites of Ni-P composite coating and nano-Al 2 O 3 in the bath, which would improve the dispersion of nano-Al 2 O 3 , thus leading to a homogeneous coating with better corrosion resistance.
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高影响因子
Journal of Materials Chemistry C
·
2017
·Vol. 5
·期 8
·2107-2113
·
IF 5.256
Xiwei Zhang,Jie Mao,Zhibin Shao,Senlin Diao,Dan Hu,Zhenjie Tang,Haihua Wu,Jiansheng Jie
For solar cells, high open circuit voltage is necessary for their high output voltage. Usually, two methods are used to increase the open circuit voltage: using suitable and matched large band-gap materials and reduction of saturation current. Herein, large band-gap p-type ZnSe nanowires and n-type CdS films are used to construct core–shell p–n heterojunctions with high open circuit voltage. Furthermore, a 4 nm Si3N4 layer is inserted between the ZnSe core and the CdS shell in order to passivate the interface defects and to reduce recombination and the saturation current. Additionally, a fast annealing process is employed to reduce the series resistance for improved performance. For a typical device, an optimum high open circuit voltage of ∼1.3 V and an energy conversion efficiency of ∼5.27% were achieved for its photovoltaic operation. Moreover, tens of devices were fabricated to demonstrate their stable and consistent performance.
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高影响因子
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