Biomaterials Science
·
2024
·
IF 5.8
Jianglong Xia,Wanying Wang,Xiaoxiong Jin,Jing Zhao,Jiaoyu Chen,Ning Li,Shanshan Xiao,Dongjun Lin,Ziyuan Song
Anionic synthetic polypeptides are promising candidates as standalone bone-targeting drug carriers. Nevertheless, the structure–property relationship of the bone-targeting ability of polypeptides remains largely unexplored. Herein we report the optimization of the in vitro and in vivo bone-targeting ability of poly(glutamic acid)s (PGAs) by altering their chain lengths and backbone chirality. PGA 100-mers exhibited higher hydroxyapatite affinity in vitro, but their rapid macrophage clearance limited their targeting ability. Shorter PGA was therefore favored in terms of in vivo bone targeting. Meanwhile, the backbone chirality showed less significant impact on the in vitro and in vivo targeting behavior. This study highlights the modulation of structural parameters on the bone-targeting performance of anionic polypeptides, shedding light on the future design of polypeptide-based carriers.
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DOI
PubMed
高影响因子
ChemNanoMat
·
2022
·Vol. 8
·期 10
·e202200268
·
IF 3.82
Mengmeng Liu,Jingjing Li,Pengfei Wang,Shuai Chen,Zhengping Dong,Fengwei Zhang
Graphical The encapsulation of Pt/TiO 2 -450H catalyst with SMSI into zeolite silicalite-1 (S-1) is reported. The resulting Pt/TiO 2 @S-1 catalyst dispalyed superior catalytic performance especially for halogenated nitroaromatics and without degradation in selectivity after 7 cycles. It is attributed to the high surface area, SMSI effect in confined space and the pore structure of S-1 with selective adsorption of substrates. The encapsulation of metal nanoparticles (NPs)-based active sites and homogeneous catalysts in nanoporous materials has been of highly research focus for tuning their catalytic activity, selectivity and stability. Although the catalysts with strong metal-support interaction (SMSI) hold the reversible encapsulation feature in a certain atmosphere, there is still a lack of systematic research on them in a real confined environment. Herein, we present a highly selective and stable Pt/TiO 2 @S-1 catalyst, which is prepared by in-situ growth of classical silicalite-1 on the external surface of Pt/TiO 2 -450H pre-catalyst with SMSI effect. Encouragingly, the encapsulated 20Pt/TiO 2 @S-1 catalyst demonstrates unprecedented catalytic performance for various nitroaromatics and without any degradation in selectivity after 7 cycles (>99%) for the hydrogenation of 1-chloro-4-nitrobenzene. Such situation is attributed to the high surface area, SMSI effect in confined space as well as the pore structure of silicalite-1 with selective adsorption of substrates.
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DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Deyu Qu,Rong Li,Xinxin Zhu,Kai Chen,Yafei Shen,Dan Liu,Zhongyuan Ma,Shichao Zhang,Zhizhong Xie,Junsheng Li,Jiaheng Lei,Haolin Tang
Two types of Resorcinol - Formaldehyde (RF) resin based ordered mesoporous carbon materials were used as sulfur host in lithium sulfur battery system. The effects of carbon material structure, morphology, surface area, pore volume, sulfur loading, electrolyte/sulfur ratio and metallic Pt nanoparticle decoration impact on the adsorption of polysulfides and battery performance are studied. Results show that carbon material carrying rod-like morphology and hexagonal meso-structure can have high sulfur loading due to its high specific surface area and large pore volume. While the one with polyhedral particles and ordered cubic meso-structure exhibits good cyclic stability and good capacity retention due to its good adsorption of polysulfides upon its cage-like pores. After in-situ decorating of Pt nanoparticles, the performance of cyclic stability as well as capacity retention significantly improved and better rate performance is also gained because of the chemisorption of polysulfides and electro-catalytic activity upon Pt.
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DOI
高影响因子
SYNTHETIC METALS
·
2016
·
IF 2.299
Hui Xu,Xiaohui Chen,Saihu Pan,Yong Qin,Xiaosong Chen,Yongxin Tao,Yong Kong
Sulfur and nitrogen codoped three-dimensional graphene-MnS (MnS/S,N-3DG) hybrids are facilely synthesized via a hydrothermal method followed by freeze-drying and pyrolysis treatment. The obtained MnS/S,N-3DG as an electrocatalyst for oxygen reduction reaction (ORR) shows excellent electrocatalytic performance. The codoped S and N as well as the introduced MnS significantly promote the electrocatalytic activity of graphene and efficiently catalyze the ORR process through a mixture of two-electron transfer pathway and four-electron transfer pathway (electron transfer number equals to 3.8 or 3.9), which is even better than the commercial Pt (5%)/C catalyst. Moreover, the developed MnS/S,N-3DG electrocatalyst possesses excellent long-term stability and methanol tolerance, and could be a promising cathode electrocatalyst in future energy conversion and storage systems.
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DOI
高影响因子
JOURNAL OF PHYSICS D-APPLIED PHYSICS
·
2022
·Vol. 55
·期 27
·274001
·
IF 3.409
Lei Deng,Dongxu Yu,Ge Sun,Xinyuan Zhang,Chunzhong Wang,Ruiyuan Tian,Fei Du
V-based materials have attracted wide attention as high-capacity cathode materials for aqueous batteries owing to their unique structures. However, much effort should be made to increase the rate performance and solve the issue of fast capacity fading to meet the ever-growing need for low-cost and safe energy-storage devices. Herein, a novel S/VOx composite is synthesized via a very simple in-situ electrochemical-induced phase transition from VS4. The as-prepared composite electrode can deliver an initial discharge capacity of 376 mAh g−1 at a current density of 0.05 A g−1, much higher than that of VS4 (150 mAh g−1). Moreover, it shows a good discharge capacity of 260 mAh g−1 at 2 A g−1 with a retention of ∼100% over 2000 cycles, indicating an impressive electrochemical stability. The outstanding Zn2+ storage performance could be attributed to the characteristics of the composite's unique structure, highly reversible electrochemical reactions, and fast Zn2+ transport.
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DOI
高影响因子
Materials Today Energy
·
2022
·
IF 9.257
Juan Wen,Haodong Sun,Qi Zhou,Zaichun Liu,Ting Huang,Xi Chen,Xiaoyan Yang,Qinghong Huang,Yuhui Chen,Yuping Wu
Ammonia as a chemical substance is closely related to our daily life, and its production process has attracted researchers' attention. Due to its high energy consumption and high emission characteristics, the industrial Haber−Bosch process obviously cannot adapt to the sustainable development concept of low-carbon and environmental protection in today's society. The electrocatalytic nitrogen reduction reaction (NRR) technology is a promising method of converting unstable electrical energy into fuel for storage at ambient conditions. Here, a bimetallic catalyst, Co–Ni–S/Ni foam, is reported as an electrocatalyst to realize N 2 reduction. The in-situ growth strategy promotes the effective combination of Co 9 S 8 and Ni 3 S 2 on the Ni foam without any adhesive. The active centers of the bimetallic Co and Ni reasonably regulate the adsorption of various complex intermediates in the N 2 activation process, so that the Co–Ni–S/Ni foam has good N 2 activity. In 0.1 M Na 2 SO 4 , the designed electrocatalyst achieved an NH 3 yield of 5.05 × 10 −10 mol s −1 cm −2 at −0.6 V vs. RHE and an optimum Faradaic efficiency of 6.23% with good electrochemical stability and selectivity. Besides, the electrocatalytic sites were also evaluated in conjunction with density functional theory.
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DOI
高影响因子
Journal of Cleaner Production
·
2024
·
IF 9.7
Hongwei Wu,Jie Li,Yuanli Li,Wei Feng,Xiaoyan Zhong,Sili Liu,Haifeng Liu,Na Li,Ruishi Xie
This study proposes a combined strategy of defect engineering and construction of S-scheme heterojunction that produces synergistic photovoltaic effects and significantly enhances photocatalysis degradation of organic pollutants under visible-light. A three-dimensional hierarchical flower-like photocatalyst CdS@Gd-ZnO featuring S-scheme heterojunction was rationally constructed. CdS@Gd-ZnO was able to degrade 99 % of rhodamine B (RhB) (10 mg/L, 75 min) and 95 % of methylene blue (MB) (10 mg/L, 60 min) under visible-light. Also, it has an excellent ability to degrade antibiotics, with 93 % of tetracycline hydrochloride (TCH) (20 mg/L, 60 min) and 90 % of oxytetracycline (OTC) (20 mg/L, 60 min), respectively. It was found that a small amount of Gd 3+ doping was not only conducive to introducing more oxygen defects, which provides a powerful tool for trapping electrons for charge transfer, but also caused the change of energy band structure, and ultimately enhanced the degradation of cationic pollutants. Accordingly, this strategy enhances the photocatalytic performance of CdS@Gd-ZnO, and the combined effect is significantly stronger than either alone. This work provides a new idea for the design of efficient heterojunction photocatalysts for energy and environmental applications.
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DOI
高影响因子
OPTICAL MATERIALS
·
2019
·
IF 2.687
Yanling Wang,Yachao Du,Lingli Meng,Yueshu Li,Zhi Li,Qingwen Tian
Kesterite Cu 2 ZnSn(S,Se) 4 (CZTSSe) has attracted much attention as an ideal absorber material for thin film solar cells. Solution deposition methods provide a crucial approach for lowering the fabricating price of CZTSSe based photovoltaic devices . Here, a low-cost and robust ethanol/thioglycolic acid/1-butylamine ternary solutions method was developed to fabricate the CZTSSe solar cells. Characterization was performed using XRD , Raman, and C–V, which showed that the material fabricated by this method expressed high-phase purity, suitable carrier concentration, and large depletion width, and those features are vital to high efficiency photovoltaic devices . Hence, based on this high quality CZTSSe absorbed layer, photovoltaic device with a power conversion efficiency (PCE) as high as 9.71% was achieved. The PCE can be further enhanced through passivating with alkali metal and optimizing the device fabrication conditions, making this method much promising for lowering the manufacturing cost of kesterite solar cells. Additionally, this approach is full of application prospect for other burgeoning photovoltaic absorber materials which could dramatically reduce the cost of solar electricity.
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DOI
高影响因子
CHINESE CHEMICAL LETTERS
·
2021
·Vol. 33
·期 6
·3272-3276
·
IF 6.779
Na Li,Guangmeng Qu,Xixi Zhang,Shunshun Zhao,Chenggang Wang,Gang Zhao,Peiyu Hou,Xijin Xu
The selection and development of cathode of alkaline zinc batteries (AZBs) is still hindered and often leads to poor rate capability and short cycle life. Here, amorphous hollow nickel-cobalt-based sulfides nanocages with nanosheet arrays (AM-NCS) are designed and constructed with ZIF-67 as the self-template to exchange with Ni 2+ and S 2− by using a two-step ion exchange method. The synthesized AM-NCS possess the high specific capacity (160 mAh/g at 2 A/g), and the assembled battery has excellent rate performance (146 mAh/g reversible capacity at 5 A/g). The assembled device has excellent rate performance (155 mAh/g at 2 A/g) and long cycling stability (7000 cycles, 62.5% of initial capacity). The excellent electrochemical properties of the electrode materials are mainly attributed to the unique structure, in particular, polyhedron structure with hollow structure can improve the cyclic stability, and the amorphous structure can expose more reactive sites on the surfaces of nickel, cobalt and sulfur. This work provides a new strategy for the design and fabrication of high performance cathode materials for AZBs.
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DOI
高影响因子
TRIBOLOGY TRANSACTIONS
·
2009
·
IF 0.578
Wu Hua,Li Jing,Ma Haibing,Ren Tianhui,M. Kasrai,G. M. Bancroft
The antiwear properties of three S-containing triazine derivatives with different active groups, referred to as HOT, HOMA, and TOMA, as additives in rapeseed oil (RSO) were evaluated using a four-ball friction and wear tester. The morphologies of the worn surfaces of the steel balls were observed using a scanning electron microscope (SEM). The tribochemical action mechanisms of the S-containing triazine derivatives in rapeseed oil were investigated by means of X-ray photoelectron spectroscopy (XPS) and X-ray absorption near edge structure spectroscopy (XANES). It was found that all three S-containing triazine compounds added in the rapeseed oil at a proper concentration showed rather good antiwear behavior. XPS and XANES analytical results showed that the tribofilms from the worn surfaces of the steel balls lubricated with RSO-1.2 wt% HOMA and the discs lubricated with RSO-3.0 wt% HOMA were mainly composed of some adsorbed N-, O-, and S-containing organic compounds, along with appreciable oxidized S products such as sulphite and sulphate. In contrast, the films from RSO-1.2 wt% TOMA showed a large concentration of FeS and FeS2, with a smaller amount of oxidized S products. The large difference in the chemical compositions of the tribofilms of RSO-HOMA and RSO-TOMA could be closely related to the differences in their active element content and bond types.
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DOI
高影响因子
MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 5
·1-13
·
IF 5.3
Cao Xiaodong,Zhang Chenlu,Xu Yunan,Wang Wei,Hu Huiying,Chen Keji,Yang Jing,He Shudong,Sun Hanju,Ye Yongkang
An electrochemical biosensor using gold nanoparticles (AuNPs)-doped bimetallic-organic framework (BMOF) with enhanced peroxidase-like activity was constructed to detect Salmonella Typhimurium ( S. typhimurium ). The BMOF of CuZr-MOF was synthesized via a two-step method and used as carrier to in situ immobilize AuNPs. Due to the stability of Zr-MOF, the good electrocatalytic ability of Cu (II), and the synergetic effects of AuNPs, Cu (II) and Zr (IV), the prepared AuNPs@CuZr-MOF nanozyme showed improved stability and catalytic activity to H 2 O 2 oxidation. The oxidation reaction was found to be a surface-controlled process of electron transfer and a pH-dependent electron transfer process of oxidation reaction involving two electrons. Further, AuNPs@CuZr-MOF was biofunctionalized with signal DNA probe, forming sDNA-AuNPs@CuZr-MOF nanotags. The biosensing platform was constructed on a glassy carbon electrode modified sequentially with electrodeposited AuNPs, capture DNA probe (cDNA), and BSA. Finally, a sandwich-type detection structure was formed by hybridization reactions between cDNA and target invA gene of S. typhimurium , as well as between invA gene and the sDNA of sDNA@AuNPs@CuZr-MOF nanotags. Under optimized experimental conditions, the biosensor achieved a linear range of 1 × 10 −16 to 1 × 10 −8 mol L −1 for the target invA gene with a detection limit (LOD) of 6.2 × 10 −17 mol L −1 using differential pulse voltammetry measurement (DPV). It was successfully applied to the direct and quantitative detection of invA gene segments in total DNA extracts of S. typhimurium , showing a linear range from 3.5 to 3.5 × 10 6 CFU mL −1 and a LOD of 0.82 CFU mL −1 . The fabricated biosensor exhibited good selectivity, reproducibility, and storage stability, enabling its use for the detection of invA gene segments in contaminated milk, with recoveries between 95.9% and 103.1%. Graphical
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产品关联
DOI
PubMed
高影响因子
FUEL
·
2025
·
IF 7.5
Shiqing Zhang,Shaokai Ma,Zihao Wang,Zihang Cao,Fang Liu,Ying Li,Xuewen Xu,Yuanhui Ma,Yanming Xue,Chengchun Tang,Jun Zhang
The development of cost-effective, highly efficient, and stable electrocatalysts for the acidic hydrogen evolution reaction (HER) is essential for advancing clean and renewable hydrogen energy technologies. This is particularly critical for proton exchange membrane (PEM) electrolyzers powered by renewable energy sources. Among various candidates, cobalt-based phosphide (CoP) has emerged as a promising catalyst for the HER in acidic media, owing to the synergistic interaction between Co and P, as well as its inherent stability. Despite significant efforts to enhance its catalytic activity, the critical issue of stability has often been overlooked. Herein, sulfur (S), which has a higher electronegativity than P, is selectively incorporated into CoP nanowire arrays through a simple vulcanization method. This strategy aims to enhance stability without altering catalytic activity. The optimized S-CoP/CC electrocatalyst shows an overpotential of 96 mV at 10 mA cm −2 in acid electrolyte, showing a slight improvement over the initial CoP/CC (114 mV). Remarkably, it shows exceptional durability, maintaining excellent stability over 150 h of testing in acid solution. The incorporation of sulfur serves a dual role: it enhances electronic conductivity and increases the electrochemical surface area, thereby improving catalytic activity, while simultaneously strengthening the CoP bond energy, leading to outstanding acid stability. Furthermore, when employed as the cathode in a PEM electrolyzer, S-CoP/CC achieves a current density of 500 mA cm −2 at 1.70 V, demonstrating excellent stability over 140 h at 60 °C. Our findings present a new approach for enhancing both the stability and activity of acidic HER by incorporating higher-electronegativity anions into the CoP lattice. This strategy is applicable not only to Co-based phosphides but also to other non-precious metal-based transition metal compounds, paving the way for the development of high-performance PEM electrolyzers.
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DOI
高影响因子
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