RARE METALS
·
2018
·Vol. 37
·期 6
·480-487
·
IF 1.5
Yang Jing,Wan Hong-Li,Zhang Zhi-Hua,Liu Gao-Zhan,Xu Xiao-Xiong,Hu Yong-Sheng,Yao Xia-Yin
Using stable inorganic solid electrolyte to replace organic liquid electrolyte could significantly reduce potential safety risks of rechargeable batteries. Na-superionic conductor (NASICON)-structured solid electrolyte is one of the most promising sodium solid electrolytes and can be employed in solid-state sodium batteries. In this work, a NASICON-structured solid electrolyte Na 3.1 Zr 1.95 Mg 0.05 Si 2 PO 12 was synthesized through a facile solid-state reaction, yielding high sodium-ionic conductivity of 1.33 × 10 −3 S·cm −1 at room temperature. The results indicate that Mg 2+ is a suitable and economical substitution ion to replace Zr 4+ , and this synthesis route can be scaled up for powder preparation with low cost. In addition to electrolyte material preparation, solid-state batteries with Na 3.1 Zr 1.95 Mg 0.05 Si 2 PO 12 as electrolyte were assembled. A specific capacity of 57.9 mAh·g −1 is maintained after 100 cycles under a current density of 0.5C rate at room temperature. The favorable cycling performance of the solid-state battery suggests that Na 3.1 Zr 1.95 Mg 0.05 Si 2 PO 12 is an ideal electrolyte candidate for solid-state sodium batteries.
研究领域:
材料科学
·
电化学
·
能源存储
·
无机化学
·
固体离子学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Teliang Lu,Yali Miao,Xinyuan Yuan,Yu Zhang,Jiandong Ye
Biphasic calcium phosphate (BCP) is a highly study bone defect repair material with adjustable degradation, perfect osteoconduction and good osteoinduction. As one of the essential trace elements, magnesium (Mg) possesses the abilities of pro-osteogenesis and pro-angiogenesis. Therefore, Mg doping may further expand the application of BCP in bone defect repair, but few studies focus on promoting the osteogenesis and angiogenesis of BCP simultaneously by Mg doping, and the optimal doping amount of Mg remains to be explored. In this study, the physicochemical and biological properties of BCP scaffold affected by Mg doping were systematically study. Results showed that Mg doping enhanced the sintering of BCP scaffold, resulting in the decrease of degradation rate at the initial soaking period. However, the introduction of Mg damaged the lattice stability of BCP, leading to the increase of BCP degradation rate at the later soaking period. BCP scaffolds with Mg doping content ≥3 mol.% could achieve a long-term sustained release of Mg. The ion microenvironment created by Mg-doped scaffolds was simultaneously conducive to the osteogenic differentiation of stem cells and the enhanced angiogenic activity of endothelial cells. The scaffold doped with 5 mol.% of Mg (Mg5–S) showed the highest efficiency in promoting osteogenic differentiation. Mg-doped BCP scaffolds with a doping content ≥3 mol.%, especially Mg5–S, significantly improved the proliferation and angiogenic differentiation of endothelial cells. Based on these, we believe that the optimal doping content of Mg in BCP is 5 mol.%, and Mg5–S has great application potential in bone defect repair.
研究领域:
材料科学
·
生物医学工程
·
组织工程
✓ 已验证
产品关联
DOI
高影响因子
Chinese Physics B
·
2022
·Vol. 31
·期 6
·068201
·
IF 1.652
Yuejun Ding,Feixiang Ding,Xiaohui Rong,Yaxiang Lu,Yong-Sheng Hu
Na-ion batteries (NIBs) are regarding as the optimum complement for Li-ion batteries along with the rapid development of stationary energy storage systems. In order to meet the commercial demands of cathodes for NIBs, O3-type Cu containing layered oxide Na0.90Cu0.22Fe0.30Mn0.48O2 with good comprehensive performance and low-cost element components is very promising for the practical use. However, only part of the Cu3+/Cu2+ redox couple participated in the redox reaction, thus impairing the specific capacity of the cathode materials. Herein, Mg2+-doped O3-Na0.90Mg0.08Cu0.22Fe0.30Mn0.40O2 layered oxide without Mn3+ was synthesized successfully, which exhibited improved reversible specific capacity of 118 mAh/g in the voltage range of 2.4–4.0 V at 0.2 C, corresponding to the intercalation/deintercalation of 0.47 Na+ (0.1 more than that of Na0.90Cu0.22Fe0.30Mn0.48O2). This work demonstrates an important strategy to obtain advanced layered oxide cathodes for NIBs.
研究领域:
电化学储能
·
材料科学
·
无机化学
·
能源材料
·
固态化学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Hanwei Zhang,Xuri Wang,Ahmad Naveed,Tianyi Zeng,Xiaoyun Zhang,Hancheng Shi,Mingru Su,Aichun Dou,Yu Zhou,Yunjian Liu
Nickel-rich cathode materials are widely used for electronic devices because of their high capacity and rate performance. However, structural deterioration after long-term cycling leads to a significant decline in capacity and cycle life. In this work, the effects of three different cations doping on the structural stability and electrochemical performance of Ni-rich cathode materials were investigated. XRD characterization reveals that doped cation leads to broadening of the distance between Li layers and inhibiting Li + /Ni 2+ mixing arrangement. Compared with Na + and K + , the high valence Mg 2+ provides a stronger Mg-O bond, which can effectively restrain the undesired phase transition and sustain the ordered structure. Electrochemical tests demonstrate that NCA with Mg doping has better cycle stability and rate performance than Na and K. The capacity retention rate of NCA with 1% Mg doping is 87.7% after 200 cycles at 1C, and it can still provide a specific capacity of 146.8 mAh g −1 at a high rate of 5C.
研究领域:
材料科学
·
电化学
·
能源存储
·
无机化学
·
固态化学
✓ 已验证
DOI
高影响因子
Artificial Cells Nanomedicine and Biotechnology
·
2025
·
IF 4.5
Shiyao Liao,Kai Zhou,Yao Kang,Tingxiao Zhao,Yicheng Lin,Jun Lv,Danjie Zhu
Cartilage repair remains challenging due to limited self-healing, poor biocompatibility, and insufficient mechanical properties of current materials. To overcome these issues, we developed a multifunctional composite hydrogel by integrating gelatine methacrylate (GelMA) with magnesium-doped bioactive glass (Mg-BG) and icariin (ICA). SEM analysis revealed that pure GelMA exhibited a highly porous yet loosely organized structure, whereas the addition of Mg-BG and ICA produced a denser, more interconnected porous network that enhances cell adhesion and nutrient diffusion. In vitro, the ICA/Mg-BG/GelMA hydrogel achieved a swelling ratio up to 430% and maintained cell viability above 80% over 5 days. Moreover, qRT-PCR and immunohistochemical analyses demonstrated that the composite hydrogel upregulated chondrogenic markers (SOX9, ACAN, and COL2A1) compared with GelMA alone. Specifically, it downregulates M1 pro-inflammatory markers (CCR7, iNOS, CD86) and upregulates M2 anti-inflammatory markers (ARG1, CD163, CD206), thereby creating a regenerative microenvironment. These results indicate that the synergistic combination of GelMA, Mg-BG, and ICA not only improves the scaffold’s mechanical support but also enhances its biological functionality, offering a promising strategy for cartilage repair. Future studies will focus on in vivo validation to further assess its clinical potential.
研究领域:
组织工程
·
再生医学
·
生物材料学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 42
·2304008
·
IF 19
Wen Zhang,Fangyuan Cheng,Meng Wang,Jia Xu,Yuyu Li,Shixiong Sun,Yue Xu,Liang Wang,Leimin Xu,Qing Li,Chun Fang,Yuhao Lu,Jiantao Han
Rapidly increasing demand for energy density in consumer electronics is eager for developing high-voltage LiCoO 2 (LCO). However, some great challenges such as severe phase transition and surface instability negate the cycle life of LCO operated at high-voltages (≥4.6 V). Herein, a chemical reconstruction strategy is proposed to form a collective surface of LCO through an interdiffusion reaction of MgHPO 4 ·3H 2 O (MP) so as to extend the cycle life of high-voltage LCO. The collective surface renders a three-layer configuration that demonstrates an amorphous Li 3 PO 4 outmost layer, a spinel-like layer beneath, and a Mg diffusion layer within LCO bulk. MP with relatively low hardness enables the uniform precoating via mechanical mixing, followed by a sintering process to undergo an interdiffusion reaction. Li 3 PO 4 is an intrinsic electrochemical stabilizer against interfacial side reactions. The spinel-like compounds build a high-voltage-stable surface against irreversible O 2 release. In addition, Mg diffuses into the bulk lattice to suppress irreversible phase transition during the deep delithiation of LCO. Therefore, such modified LCO with a collective surface exhibits ultralong life with capacity retention of 82% after 1000 cycles at 1 C within 3.0–4.6 V and stable operating at 4.7 V or elevated temperature (45 °C).
研究领域:
材料科学
·
电化学
·
能源存储
·
无机化学
·
固态化学
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Luhui Zhang,Jiajia Fan,Lin Ding,Peng Zhang,Jiandong Ye,Teliang Lu
Rapid induction of angiogenesis is crucial for the treatment of large bone defects and accelerating the material-mediated bone defect repair process. In this study, we employed a negative pressure infiltration method to coat the surface of porous BCP scaffolds with dopamine-modified hyaluronic acid (HA-DA) hydrogel and magnesium-doped calcium silicate (Mg-CS). In vitro results demonstrated that HA-DA hydrogel coating with an appropriate degree of dopamine grafting significantly improved the in vitro angiogenic activity of BCP scaffolds without affecting their osteogenic activity. The Mg-CS coating, heat-treated to ensure good combination with the BCP matrix, could sustainably release angiogenic silicon ions and osteogenic magnesium ions. Results from rat cranial defect repair showed that the implanted BCP@HA-DA-2 and BCP@10 Mg-CS scaffolds further accelerated the occurrence and development of neovascularization at the defect site, facilitating new bone formation. Among them, BCP@10 Mg-CS scaffold exhibited the best bone defect repair effect and has the potential for clinical application.
研究领域:
生物材料学
·
组织工程学
·
再生医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SmartMat
·
2024
·Vol. 5
·期 6
·e1306
·
IF 15.3
Huili Wang,Jianing Qi,Peixin Jiao,Zhonghan Wu,Ziheng Zhang,Na Jiang,Dongjie Shi,Geng Li,Zhenhua Yan,Kai Zhang,Jun Chen
P2-type layered Ni–Mn-based oxides are vital cathode materials for sodium-ion batteries (SIBs) due to their high discharge capacity and working voltage. However, they suffer from the detrimental P2 → O2 phase transition induced by the O 2− −O 2− electrostatic repulsion upon high-voltage charge, which leads to rapid capacity fade. Herein, we construct a P2-type Ni–Mn-based layered oxide cathode with a core-shell structure (labeled as NM–Mg–CS). The P2-Na 0.67 [Ni 0.25 Mn 0.75 ]O 2 (NM) core is enclosed by the robust P2-Na 0.67 [Ni 0.21 Mn 0.71 Mg 0.08 ]O 2 (NM–Mg) shell. The NM–Mg–CS exhibits the phase-transition-free character with mitigated volume change because the confinement effect of shell is conductive to inhibit the irreversible phase transition of the core material. As a result, it drives a high capacity retention of 81% after 1000 cycles at 5 C with an initial capacity of 78 mA h/g. And the full cell with the NM–Mg–CS cathode and hard carbon anode delivers stable capacities over 250 cycles. The successful construction of the core-shell structure in P2-type layered oxides sheds light on the development of high-capacity and long-life cathode materials for SIBs.
研究领域:
材料科学
·
电化学
·
能源存储
·
无机化学
·
固态化学
✓ 已验证
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2017
·
IF 2.446
Tengchao Guo,Guoyue Xu,Shujuan Tan,Ning Liu,Jianchao Zhang,Xiangxiong Zeng,Juan Liang
The electronic properties and infrared emissivity of Zn 1-x Mg x O (x = 0, 0.0625, 0.125) were systematically investigated by using the first-principle calculation s based on density functional theory (DFT). The Zn 1-x Mg x O (x = 0, 0.0625, 0.125) powders were prepared by sol-gel method and their infrared emissivity in the wavelength of 8–14 μm was characterized. The results indicate that the infrared emissivity increases with the increase in Mg concentration, which is attributed to the reduction in conductivity and in the real part of dielectric function. Furthermore, the variation in conductivity and dielectric function has been well studied, and a reasonable method to calculate infrared emissivity of semiconductors has been established. It is expected that this method can be used for designing materials with different infrared emissivity and also applied for effectively guiding the experimental investigation.
研究领域:
材料科学
·
凝聚态物理
·
计算材料学
·
功能材料
·
半导体物理
✓ 已验证
DOI
高影响因子
Inorganics
·
2025
·Vol. 13
·期 8
·261
·
IF 3
Zebin Song,Hao Zhou,Yin Zhang,Haining Ji,Liping Wang,Xiaobin Niu,Jian Gao
The O3-type layered oxide materials have the advantage of high specific capacity, which makes them more competitive in the practical application of cathode materials for sodium-ion batteries (SIBs). However, the existing reported O3-type layered oxide materials still have a complex irreversible phase transition phenomenon, and the cycle life of batteries needs, with these materials, to be further improved to meet the requirements. Herein, we performed structural characterization and electrochemical performance tests on O3-NaNi0.6−xFe0.25Mn0.15MgxO2(x = 0, 0.025, 0.05, and 0.075, denoted as NFM, NFM-2.5Mg, NFM-5.0Mg, and NFM-7.5Mg). The optimized NFM-2.5Mg has the largest sodium layer spacing, which can effectively enhance the transmission rate of sodium ions. Therefore, the reversible specific capacity can reach approximately 148.1 mAh g−1at 0.2C, and it can even achieve a capacity retention of 85.4% after 100 cycles at 1C, demonstrating excellent cycle stability. Moreover, at a low temperature of 0 °C, it also can keep capacity retention of 86.6% after 150 cycles at 1C. This study provides a view on the cycling performance improvement of sodium-ion layered oxide cathodes with a high theoretical specific capacity.
研究领域:
材料科学
·
电化学
·
储能技术
·
无机化学
✓ 已验证
产品关联
DOI
高影响因子
SCRIPTA MATERIALIA
·
2024
·
IF 5.3
Chengjun Li,Yubo Luo,Wang Li,Linhan Yang,Wenyuan Ma,Zheng Ma,Chengwei Sun,Boyu Yang,Yingchao Wei,Xin Li,Junyou Yang
We report here a high thermoelectric performance in magnesium (Mg) doped Sb 2 Si 2 Te 6 . The substitution of Mg 2+ for Sb 3+ in Sb 2 Si 2 Te 6 induces a synergetic effect on electrical transport performance, exciting multi-band carrier transport behavior, enhancing carrier concentration, and increasing the density of states effective mass. Such effects lead to the highest power factor of 10.95 μW cm −1 K −2 at 824 K for the Sb 1.99 Mg 0.01 Si 2 Te 6 , representing a ∼22 % increase compared to pristine Sb 2 Si 2 Te 6 . In addition, Mg doping induces Mg Sb − point defects phonon scattering, resulting in a low thermal conductivity of ∼0.52 W m −1 K −1 at 824 K. The simultaneous optimization of the power factor and thermal conductivity in Sb 1.99 Mg 0.01 Si 2 Te 6 leads to a peak ZT of ∼1.15 at 824 K and an average ZT of ∼0.68 (400−824 K), showing its potential for power generator at medium temperature.
研究领域:
材料科学
·
热电学
·
固体物理学
✓ 已验证
DOI
高影响因子
Materials Today Energy
·
2021
·
IF 7.311
L. Shen,J. Yang,G. Liu,M. Avdeev,X. Yao
The low ionic conductivity and poor dendrites suppression capability of Na 3 Zr 2 Si 2 PO 12 solid electrolyte limit the practical application of all-solid-state sodium batteries . Herein, the optimized Na 3.4 Mg 0.1 Zr 1.9 Si 2.2 P 0.8 O 12 electrolyte is obtained by simultaneously substituting the Zr 4+ with Mg 2+ and P 5+ with Si 4+ through solid-state reaction. The Na 3.4 Mg 0.1 Zr 1.9 Si 2.2 P 0.8 O 12 electrolyte has superior room temperature ionic conductivity of 3.6 × 10 −3 S cm −1 , which is 17 times higher than that of pristine Na 3 Zr 2 Si 2 PO 12 . No short circuit of the Na/Na 3.4 Mg 0.1 Zr 1.9 Si 2.2 P 0.8 O 12 /Na symmetric battery is observed up to 2.0 mA cm −2 , and the symmetric battery displays stable sodium plating/stripping cycles for over 2000 h at 0.1 mA cm −2 and 300 h at 1.0 mA cm −2 . The resultant Na 3.4 Mg 0.1 Zr 1.9 Si 2.2 P 0.8 O 12 electrolyte is further employed in two all-solid-state sodium batteries. The Na 3 V 2 (PO 4 ) 3 /Na 3.4 Mg 0.1 Zr 1.9 Si 2.2 P 0.8 O 12 /Na all-solid-state sodium battery maintains a discharge capacity of 93.3 mAh g −1 at 0.1C after 50 cycles, and the FeS 2 /Na 3.4 Mg 0.1 Zr 1.9 Si 2.2 P 0.8 O 12 /Na all-solid-state sodium battery delivers a discharge capacity of 173.1 mAh g −1 at 0.1C after 20 cycles, which are significantly enhanced compared with those based on pristine Na 3 Zr 2 Si 2 PO 12 . This strategy provides an efficient method to prepare optimized NASICON solid electrolytes with high ionic conductivity and excellent dendrites suppression capability and promotes the practical application of all-solid-state sodium batteries.
研究领域:
材料科学
·
电化学
·
固态离子学
·
能源存储
·
电池技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）