INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Shengmiao Wang,Yang Song,Yupu Yang,Xiaohong Wang,Jing Lan,Zheqin Dong
Gelatin-based hydrogels are promising for bone tissue engineering due to their inherent biocompatibility and bioactivity, yet developing scaffolds that simultaneously achieve mechanical robustness, osteoinductivity, and structural precision remains a major challenge. Here, we report a high-strength GelMA-PVI-Zn hydrogel constructed through a double-crosslinked (DC) network of gelatin methacryloyl (GelMA), poly(1-vinylimidazole) (PVI), and Zinc ions. Dynamic PVI-Zn coordination bonds act as sacrificial interactions to dissipate energy, endowing the hydrogel with exceptional mechanical performance, including a tensile modulus of 11.72 ± 0.33 MPa (81.8-fold higher than single-network controls) and a fracture strength of 2.50 ± 0.12 MPa (44.0-fold increase). Importantly, the coordination network preserves the rapid photocrosslinking kinetics of GelMA, ensuring compatibility with digital light processing (DLP) 3D printing for the fabrication of complex, high-fidelity scaffolds. Moreover, sustained Zn 2+ release from the network promoted stem cell osteogenic differentiation in vitro and markedly enhanced bone regeneration in vivo. This work presents a robust and versatile hydrogel platform that integrates high mechanical strength, osteoinductivity, and printability, offering strong translational potential for the treatment of critical-sized bone defects.
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产品关联
DOI
PubMed
高影响因子
FUEL
·
2024
·
IF 6.7
Zhuo Wang,Huiling Zheng,Fanhui Meng,Tingjun Fu,Zhong Li
The use of ZSM-5@Zn/ZSM-5 core@shell nanocrystals as integrated catalyst for efficient aromatic production from methanol aromatization is demonstrated. By combining the attributes associated with core@shell structural and acidic features, ZSM-5@Zn/ZSM-5 exhibited synergistic and improved catalytic performance toward methanol aromatization. The effect of Zn/ZSM-5 shell thickness and the acid density of the ZSM-5 core on synergistic performance was systematically investigated. Results showed that aromatic selectivity could be increased with shell thickness and the acid density of the ZSM-5 core, while catalytic stability was subject to the optimization on both shell thickness and core acid density. The strengthening of dehydroaromatization on the shell catalyst after Zn introduction and the hydrogen transfer for aromatization with increasing core acid density was confirmed. A double boost on catalytic stability from methanol conversion along with 40.7% increase on aromatic selectivity could be achieved for core@shell catalyst with a coating ratio of 0.3 compared with that on single core catalyst. The fabrication of ZSM-5 core with low SiO 2 /Al 2 O 3 ratio for Zn/ZSM-5 not only provided more acid sites to promote the aromatization, but also promoted the dealkylation of the formed aromatics, which could enhance the selectivity of light aromatics and catalytic lifetime. The findings in the work not only enrich the family of core@shell composite zeolite catalysts, but also provide the fundamental understanding on the aromatization process over core@shell structural features.
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Hong Zhang,Haowei Zhu,Shibin Nie,Siyu Wu,Xiaoyong Liu,Songfeng Yin
In this study, four sodium superionic conductors Na 3 Zr 2-x Zn x Si 2 PO 12 (x=0, 0.1, 0.2, 0.3) were used as solid electrolytes for planar mixed-potential gas sensors (Zn0, Zn1, Zn2, and Zn3 sensors) to detect hydrogen sulfide (H 2 S) and sulfur dioxide (SO 2 ). The total conductivity of the Na 3 Zr 2-x Zn x Si 2 PO 12 electrolyte first increased and then decreased with increasing Zn 2+ doping. When doped with 0.2 mol of Zn 2+ , the electrolyte exhibited the highest total conductivity of 6.37 × 10 -5 S·cm -1 at 25°C, which was 14.2 times higher than that of the undoped electrolyte. At 25°C, the response of the Zn2 sensor to 10 ppm H 2 S was -237.8 mV, which was 6.9, 2.1, and 5.8 times that of the Zn0, Zn1, and Zn3 sensors, respectively. A high response of -58.6 mV was obtained by the Zn2 sensor at 25°C for 0.5 ppm H 2 S. In addition, the sensitivity to H 2 S at 25°C was -150.9 mV/decade. In comparison with reported mixed-potential H 2 S sensors, the Zn2 sensor demonstrated significantly higher response and sensitivity at room temperature. Moreover, the Zn2 sensor responded to 10 ppm SO 2 and H 2 S almost equally at 25°C. The gas sensing behavior was discussed in terms of the variation of sodium ionic conductivity, Na 3 PO 4 phase proportion, and ZnS formation under H 2 S or SO 2 atmosphere. Additionally, taking the detection of H 2 S-contaminated environments as an example, a gas leakage detection and alarm platform based on the Zn2 sensor was designed. This study provides insights into designing and developing high-performance mixed-potential gas sensors for H 2 S and SO 2 at room temperature.
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DOI
高影响因子
Journal of Building Engineering
·
2024
·
IF 6.7
Baomin Wang,Weigao Ding,Chengcheng Fan,Fei Liu,Wenxin Lu,Haoxiang Yang
C-S-H gel is a complex cementitious system, and the properties present significant difference with various Ca/Si ratios. The immobilization mechanism of three heavy metals in C-S-H gel at various Ca/Si ratios was investigated in this work from the prospect of the physical adsorption and chemical immobilization. Results showed that higher Ca/Si ratios can result in an increase in silicon chain polymerization, and lower BET specific area, and C-S-H gel with various Ca/Si ratios showed the excellent immobilization for heavy metals. Pb(II) and Zn(II) can form hydroxyl complex polyhedra in C-S-H under strongly alkaline environments, and increase the silicon chain polymerization degree similar to the doping of C-S-H gel by Al. However, Cd(II) was immobilized in the C-S-H gel with the formation of a solid solution under the action of ion exchange with Ca(II), rather than in the form of hydroxyl complex polyhedral and cadmium hydroxide coprecipitates. The highest adsorption capacity of Pb(II) was realized in C-S-H gel with a Ca/Si molar ratio of 0.9, reaching 95.6006 mg/g. Pb(II) was mainly immobilized in C-S-H gel via physical and chemical adsorption, and the effect of chemical adsorption tended to be significant as the Ca/Si molar ratio increased. And the formation of Pb 8 Ca(Si 2 O 7 ) 3 can be detected in C-S-H gel with a higher Ca/Si molar ratio.
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DOI
高影响因子
Journal of Energy Chemistry
·
2022
·
IF 13.599
Kai Wu,Fanghua Ning,Jin Yi,Xiaoyu Liu,Jiaqian Qin,Yuyu Liu,Jiujun Zhang
The hydrogen evolution reaction (HER) and dendrite growth associated with Zn anode have become the main bottlenecks for the further development of zinc ion batteries (ZIBs). In this work, the electrochemical activity of H 3 O + is inhibited by the supramolecular host–guest complex composed of H 3 O + as guest and 18-crown-6 as host. The even Zn plating is induced by the host–guest complex electrostatic shielding layer on Zn anode, as detected by in - situ optical microscopy. The lamellar Zn is plated which profits from the improved Zn plating behavior. Density functional theory (DFT) calculation presents the stable structure of complex. The less produced H 2 content is monitored online by a mass spectrometer during Zn plating/stripping, which indicates HER can be hampered by the host–guest behavior. Thus, the ZIBs with long life and high Coulombic efficiency are achieved via introducing 18-crown-6. The proposed host–guest supramolecular interaction is expected to facilitate the furthermore development of Zn batteries.
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DOI
高影响因子
RSC Advances
·
2018
·Vol. 8
·期 62
·35353-35359
·
IF 2.936
Yanyan Zheng,Chengyan Liu,Lei Miao,Hong Lin,Jie Gao,Xiaoyang Wang,Junliang Chen,Shaohai Wu,Xin Li,Huanfu Cai
As promising candidates for the progress of low-temperature thermoelectric devices, MgAgSb-based thermoelectric materials have drawn a great deal of attention. However, due to complicated phase changes, high content of impurities and high volatilization of Mg, it is difficult to synthesize pure phase MgAgSb-based thermoelectric materials via conventional methods. Here, MgAgSb alloy was successfully synthesized by a combination of common planetary ball milling and spark plasma sintering. Furthermore, the introduction of Zn improved the purity of alloys, leading to optimization of the electrical transport properties. As a result, the power factor was improved from 1087 μW m−1 K−2 for MgAg0.9Sb0.95 to 1394 μW m−1 K−2 for Mg0.97Zn0.03Ag0.9Sb0.95 at 473 K, and the ZT reached ∼0.7 at 473 K. These results suggest that MgAgSb-based thermoelectric materials have a good thermoelectric application potential and this study can be used as guidance for the synthesis and performance improvement of other thermoelectric materials. Our synthesis route sets forth a new avenue for accelerating commercial applications of MgAgSb-based thermoelectric power generation or refrigeration.
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Chenghong Sun,Enze Zhu,Chaoyang Shi,Juan Yu,Shubiao Yin,Chunxia Liu,Xiaoying Cui,Weiping Liu,Mingli Xu
The vigorous development of efficient cathode-side oxygen reduction reaction (ORR) catalysts is one of the keys to the practical application of fuel cells and Zn-air batteries (ZABs). Herein, a facile and green photochemical method is developed to synthesize pure-phase Mn 3 O 4 nanoparticles , which are uniformly anchored on nitrogen-doped reduced graphene oxide (N-rGO), followed by simple one-step annealing to highly catalytical active and stable MnO/N-rGO. The resultant MnO/N-rGO exhibits exciting ORR performance in alkaline media. Particularly, both GDE (gas diffusion electrode) half-cell and ZABs assembled from MnO/N-rGO have excellent overall performance and outstanding long-term durability, obviously better than Pt/C-based GDE half-cell and Pt/C + RuO 2 -based ZABs, respectively. It is mainly attributed to the synergistic effect between MnO nanoparticles and N-rGO support, which significantly increases the active sites and facilitates 4-electron transfer. This research paves a way for the green photochemical synthesis of transition metal oxide ORR catalysts at room temperature.
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Guochao Wan,Wenhao Sun,Lei Liu,Changming Mao,Zhonghua Zhang,Xiaosong Guo,Guicun Li
Reducing the free radicals associated with electrochemical reactions and the activity of H2O is an effective measure to inhibit side reactions and improve stability for rechargeable aqueous Zn-ion batteries. Herein, methylsulfonylmethane (MSM), a popular dietary supplement for humans, is used as an innoxious and low-cost additive to scavenge free radicals and optimize the coordination condition for aqueous ZnSO4 electrolyte. Profiting from the double effects of MSM, the Zn∥Ti asymmetric cells exhibit excellent stability and display a high Coulombic efficiency (CE) of 99.5% in the aqueous MSM/ZnSO4 electrolyte for 1000 h, and the Zn∥Zn cells achieve a long cycle life of over 2000 h. In addition, MSM can effectively suppress the dissolution of an ammonium vanadate (NVO) cathode. The positive role of MSM is further exhibited in the Zn∥NVO and Zn∥PANI full cells, exhibiting outstanding charge/discharge performance and capacity retention. This work provides a type of innoxious additive for an aqueous electrolyte for aqueous rechargeable zinc-ion batteries.
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2019
·
IF 6.97
Jiacheng Yan,Zeming Tang,Binxin Li,Da Bi,Qingxue Lai,YanYu Liang
With the advantages of low cost, non-pollution, and strong controllability over composition, morphology, nanostructures, as well as surface characters, carbon-based nanomaterials are regarded as ideal substitutes of traditional platinum-based catalysts for oxygen reduction reaction (ORR) electrocatalysis in ORR-involved devices. Herein, an in situ ZnO activation-coupled electrospinning strategy was employed to facilely construct nitrogen-doped porous carbon nanofibers (NPCNF) for flexible Zn–air batteries. In situ formation and thermal removal of ZnO make a critical difference in construction of micro/meso-hierarchically porous structures as well as highly active N-doped sites, therefore generating self-standing carbon nanofibers with high nitrogen doping content as well as specific Brunauer–Emmett–Teller of 501 m2/g and 5.6 at. %. As a result, the prepared NPCNF as a self-standing electrode delivers an excellent performance both in alkaline liquid-state and quasi-solid-state Zn–air batteries, giving the possibility of applications in flexible devices.
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Xingxing Li,Yanan Ma,Yang Yue,Guosheng Li,Chuankun Zhang,Minglei Cao,Yongchen Xiong,Jintao Zou,Yongheng Zhou,Yihua Gao
In recent years, the metal ion hybrid micro-supercapacitor (MSC) comprised of the battery-type Faradaic cathode based electrode and capacitor-type anode based electrode, can realize both high power and energy density, which becomes one of the most hottest areas of energy device. Herein, we demonstrated a zinc-ion hybrid micro-supercapacitor (ZIHMSC) by designing a Ti 3 C 2 T x MXene based electrode as capacitor-type anode and vanadium pentoxide (V 2 O 5 ) based electrode as battery-type cathode. In addition, the polyacrylamide (PAM) hydrogel where ZnSO 4 dissolved was chosen as the electrolyte, which effectively avoids the security risks, unlike other hybrid MSC based on the organic electrolytes. Meanwhile, the flexible ZIHMSC also exhibits well electrochemical properties, displaying a remarkable capacitance (129 mF cm −2 under 0.34 mA cm −2 ), high energy density (48.9 μWh cm −2 at 673 μW cm −2 ) and well-cycle stability (retaining ~ 77% capacitance after 10,000 cycles). This work supports a prospective routine for constructing the new-generation flexible micro-energy storage systems.
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DOI
高影响因子
Journal of Energy Chemistry
·
2023
·
IF 13.1
Hang Yang,Duo Chen,Yicheng Tan,Hao Xu,Li Li,Yiming Zhang,Chenglin Miao,Guangshe Li,Wei Han
Since the electrode/electrolyte interface (EEI) is the main redox center of electrochemical processes, proper manipulation of the EEI microenvironment is crucial to stabilize interfacial behaviors. Here, a finger–paint method is proposed to enable quick physical modification of glass–fiber separator without complicated chemical technology to modulate EEI of bilateral electrodes for aqueous zinc–ion batteries (ZIBs). An elaborate biochar derived from Aspergillus Niger is exploited as the modification agent of EEI, in which the multi–functional groups assist to accelerate Zn 2+ desolvation and create a hydrophobic environment to homogenize the deposition behavior of Zn anode. Importantly, the finger–paint interface on separator can effectively protect cathodes from abnormal capacity fluctuation and/or rapid attenuation induced by H 2 O molecular on the interface, which is demonstrated in modified MnO 2 , V 2 O 5 , and KMnHCF–based cells. The as–proposed finger–paint method opens a new idea of bilateral interface engineering to facilitate the access to the practical application of the stable zinc electrochemistry.
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DOI
高影响因子
Advances in Materials Science and Engineering
·
2022
·Vol. 2022
·期 1
·7408284
·
IF 2.098
Zhenhao Wei,Yufan Ji,Yiping Huang,Jingjing Huang,Yunguo Huang,Changhai Yue,Junzhou Li,Mingwei Tang,Yunfang Liu,Hanfei Liu,Hao Zhu,Kai Zhu,Fan Yang,Xuedong Zhu
Zinc (Zn) and cerium (Ce) modified hierarchical ZSM-5 (HZ) catalysts were prepared by incipient wetness impregnation, and their catalytic performances in methanol to aromatics reaction were evaluated in a fixed-bed reactor operating at 400°C under 0.1 MPa and WHSV of 1.0 h −1 . The structure, acidity, and state of Zn species of the Zn/Ce modified HZ catalysts were investigated via several characterization techniques, including XRD, NH 3 -TPD, H 2 -TPR, nitrogen adsorption, and XPS. The results showed that the aromatization activity of 2 wt% Zn-modified HZ (2% Zn/HZ) could be significantly enhanced by loading 0.6 wt% Ce, which was mainly attributed to the increase in surface ZnOH + species. Moreover, it was found that Ce inhibited pore blockage caused by Zn. Consequently, compared to 2% Zn/HZ, 2% Zn-0.6% Ce/HZ exhibited higher aromatic selectivity and longer catalyst lifetime.
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DOI
高影响因子
危险品化学品经营许可证（带存储）