Carbon Energy
·
2024
·
IF 19.5
Guobao Xu,Liyue Yang,Zhihao Yan,Zhikai Huang,Xue Li,Gencai Guo,Ye Tian,Liwen Yang,Jianyu Huang,Yaru Liang,Shulei Chou
Though plenty of research has been conducted to improve the low intrinsic electronic conductivity of NASICON-structured NaTi 2 (PO 4 ) 3 (NTP), realizing sodium-ion batteries with high areal/volumetric capacity still remains a formidable challenge. Herein, a multiscale design from anode material to electrode structure is proposed to obtain a gadolinium-ion-doped and carbon-coated NTP composite electrode (NTP-Gd-C), in which gadolinium ion doping, oxygen vacancy, optimized structure, N-doped carbon coating, and bridging on the three-dimensional network are simultaneously achieved. In the whole electrode, the excellent hierarchical electronic/ionic conductivity and structural stability are simultaneously improved via the synergistic optimization of NTP-Gd-C. As a result, excellent electrochemical performances of NTP-Gd-C electrode with a high areal/volumetric capacity of 1.0 mAh cm −2 /142.8 mAh cm −3 , high rate capability (58.3 mAh g −1 at 200 C), long cycle life (ultralow capacity fading of 0.004% per cycle under 10,000 cycles), and wide-temperature electrochemical performances (97.0 mAh g −1 at 2 C under −20°C) are achieved. Moreover, the NTP-Gd-C//Na 3 V 2 (PO 4 ) 3 /C full cell also delivers an excellent rate capacity of 42.0 mAh g −1 at 200 C and long-term high-capacity retention of 66.2% after 4000 cycles at 20 C. Highlights Developing high-performance sodium-ion batteries with the multiscale designed NaTi 2 (PO 4 ) 3 (NTP)-Gd-C material as the anode. Demonstrating the enhanced intrinsic ionic/electronic conductivity and structural stability of NTP-Gd-C electrode. Revealing the great potential for commercial applications of the NTP-Gd-C material.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
AICHE JOURNAL
·
2023
·Vol. 69
·期 7
·e18070
·
IF 3.7
Jianan Zhang,Min Zhao,Zhi-wen Yin,Zhi-yi Hu,Yanan Liu,Yufei He,Dianqing Li
Modification of rare earth elements (Ln) often contributes to the improved performance in many applications compared with the monometallic catalysts, but the current research is only limited in the individual light rare earth elements. In this work, a series of Ln elements involving Gd, Sm, Nd, Pr, and La was added into monometallic Ni/Al 2 O 3 system to focus how the microstructure of active Ni centers depended on the presence and contents of Ln, and thus improved the catalytic behavior in the steam reforming of methane. Enhanced catalytic behavior could be observed over Ln-modified Ni catalysts, among which Ni-Gd/Al 2 O 3 was predicted to be more high-efficient no matter supported on power or spherical Al 2 O 3 catalysts. A combined investigation of XPS with STEM and TPR was carried out over the candidates to reveal the structure-performance relationship. Furthermore, this was further applied to noble metal systems, realizing the benign universality of the modification strategy.
研究领域:
催化化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2012
·
IF 4.601
Wenlong Yin,Wendong Wang,Lei Bai,Kai Feng,Youguo Shi,Wenyu Hao,Jiyong Yao,Yicheng Wu
The 12 new rare-earth tellurides Ba2MLnTe5 (M = Ga and Ln = Sm, Gd, Dy, Er, Y; M = In and Ln = Ce, Nd, Sm, Gd, Dy, Er, Y) have been synthesized by solid-state reactions. The two compounds Ba2GaLnTe5 (Ln = Sm, Gd) are isostructural and crystallize in the centrosymmetric space group P1̅, while the other 10 compounds belong to another structure type in the noncentrosymmetric space group Cmc21. In both structure types, there are one-dimensional anionic 1∞[MLnTe5]4– chains built from LnTe6 octahedra and MTe4 (M = Ga, In) tetrahedra, but the connectivity between the LnTe6 octahedra and MTe4 tetrahedra is different for the two structure types. On the basis of the diffuse-reflectance spectra, the band gaps are around 1.1–1.3 eV for these compounds. The Ba2MLnTe5 (M = Ga and Ln = Gd, Dy; M = In and Ln = Gd, Dy, Er) compounds are paramagnetic and obey the Curie–Weiss law, while the magnetic susceptibility of Ba2InSmTe5 deviates from the Curie–Weiss law. In addition, electronic structure calculation on Ba2MYTe5 (M = Ga, In) indicates that they are both direct-gap semiconductors with large nonlinear-optical coefficients.
研究领域:
材料科学
·
凝聚态物理
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CRYOGENICS
·
2022
·
IF 2.134
Yuwei Chen,Wang Liu,Jingcheng Feng,Ruixin Guo,Feidi Fan,Jun Shen,Guochun Zhang,Heng Tu
A series of lanthanide-rich oxyborates LiLn 6 O 5 (BO 3 ) 3 (LLnOB, Ln = Gd, Tb, Dy, and Ho) have been synthesized using high temperature solid state method. Their magnetic and magnetocaloric properties were investigated upon magnetic susceptibility ( χ ), magnetization ( M ), and isothermal magnetic entropy change ( −ΔS m ) measurements. The maximum − ΔS m, max of LiGd 6 O 5 (BO 3 ) 3 is 44.7 J kg −1 K −1 at 4 K and Δμ 0 H = 9 T, which is higher than the one of commercial Gd 3 Ga 5 O 12 (GGG, −ΔS m, max = 41.8 J kg −1 K −1 at 2 K for Δμ 0 H = 9 T). For LiHo 6 O 5 (BO 3 ) 3 , −ΔS m, max is 14.12 J kg −1 K −1 at 3 K and Δμ 0 H = 2 T, which is also larger than that of Ho 3 Ga 5 O 12 (HoGG, − ΔS m, max = 4.38 J kg −1 K −1 at 2 K for Δμ 0 H = 2 T) and Dy 3 Ga 5 O 12 (DGG, − ΔS m, max = 11.0 J kg −1 K −1 at 2 K for Δμ 0 H = 2 T). These results indicate that LiGd 6 O 5 (BO 3 ) 3 and LiHo 6 O 5 (BO 3 ) 3 may be competitive candidates for applications as magnetic refrigerants. Moreover, thermal stability, infrared spectrum (IR), and ultraviolet–visible-near-infrared diffuse reflectance spectrum (UV–Vis-NIR) were carried out to characterize the title compounds.
研究领域:
材料科学
·
物理学
·
化学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 46
·25944-25953
·
IF 12.732
Jingdan Lei,Hexige Wuliji,Kunpeng Zhao,Tian-Ran Wei,Qing Xu,Peng Li,Pengfei Qiu,Xun Shi
Mg3Sb2-based thermoelectric materials have recently received heightened attention due to their diverse merits of high band degeneracy, ultralow lattice thermal conductivity and high carrier mobility. However, the inherently low carrier concentration of pristine Mg3Sb2 seriously hinders the advancement of this material toward high thermoelectric performance. Therefore, searching for proper dopants to optimize the carrier concentration is one of the primary avenues to realize superior thermoelectric performance in Mg3Sb2-based materials. Herein, by considering the electronegativity difference Δχ and mass difference ΔM between the dopant and host elements, we theoretically and experimentally demonstrate lanthanide Gd as an effective dopant to tune the carrier concentration of Mg3Sb1.3Bi0.7 alloys. Owing to its high doping efficiency, a large carrier concentration up to 8.9 × 1019 cm−3 is realized through Gd doping, which is close to the optimal value. Moreover, the coarse grain size commendably mitigates the grain boundary effects and thus ensures high carrier mobility. Combining the greatly suppressed lattice thermal conductivity by point defect scattering, a maximum zT of 1.55 is achieved at 700 K in Mg3.065Sb1.3Bi0.7Gd0.015.
研究领域:
材料科学
·
热电学
·
能量转换
·
固体物理
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Bin Li,Chong Yang,Rongbo Ma,Bin Cao,Chaoyong Deng,Weichao Huang
Bi 3+ -doping luminescent materials have recently evoked considerable interest in versatile applications. In this work, we have developed a series of Bi 3+ -activated CaSrMSbO 6 (M = La, Gd, Y) phosphors with double perovskite structures, exhibiting blue emission from 350 nm to 500 nm. The emission spectral position and intensity of Bi 3+ ions can be tuned by changing excitation wavelength and doping concentrations. The relationship between the local crystal field environment and the luminescence properties is comprehensively analyzed. Importantly, optical temperature properties of CaSrLaSbO 6 : Bi 3+ were investigated and were found to reach a maximum relative sensitivity of 4.57 % K −1 at 298 K. Furthermore, the anti-counterfeiting ink was prepared using CaSrLaSbO 6 : Bi 3+ phosphors, and it showed tunable emission under different light stimulation. These results indicate that CaSrLaSbO 6 : Bi 3+ phosphors have application potential in optical temperature sensing and anti-counterfeiting.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2015
·
IF 2.947
Xianqiang Chen,Haiming Qin,Ye Zhang,Jun Jiang,Haochuan Jiang
Gd 3 (Al,Ga) 5 O 12 (GAGG) ceramic is a promising scintillation matrix due to its favorable chemical and physical properties. However, difficulties in the preparation of highly transparent ceramics limit its applications in scintillation detectors. In present work, highly transparent GAGG-based ceramics were prepared via solid state reaction and oxygen sintering method. Ceramics with transmittance of up to 73% at around 560 nm were obtained. This transmittance value is very close to the value of 76% for the equivalent single crystal. Effects of ZrO 2 concentration on the microstructure and optical properties of GAGG-based transparent ceramics were intensively studied. It is found that the addition of ZrO 2 can effectively prohibit grain growth while promoting the removal of residual pores.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 27
·1-12
·
IF 2.8
Zhang Wei,Qin Lizhong,Qi Xiaohui,Na Liyan,Hua Ruinian
Photocatalytic hydrogen evolution on specific semiconductor material has been the most promising method to meet the future energy demands. To increase the efficiency of the photocatalysis, the β -NaY(Gd)F 4 :Yb 3+ ,Er 3+ @W 18 O 49 nanocomposites were successfully synthesized by a two-step hydrothermal method. It can be observed that the as-prepared nanocomposites have a layered structure; the inner layer is hexagonal-phase β -NaY(Gd)F 4 :Yb 3+ ,Er 3+ nanorods, and the outer layer is W 18 O 49 nanowires (NWs). Compared to the W 18 O 49 samples, the nanocomposites show 160% increase in hydrogen production efficiency in a BH 3 NH 3 aqueous solution under 980 nm irradiation. The enhanced photocatalytic activity of the nanocomposites can be attributed to their particular hierarchical structure. The effect of localized surface plasmon resonance (LSPR) on the surface of the W 18 O 49 NWs and the upconversion luminescence of nanorods in inner layer can be simultaneously triggered at 980 nm. Subsequently, the luminescence of the nanorods can be partially absorbed by the W 18 O 49 NWs to re-excite the LSPR oscillation of the nanocomposite. The reexcited LSPR effect improves the photocatalytic efficiency of the nanocomposite.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
Scientific Reports
·
2017
·Vol. 7
·期 1
·1-9
·
IF 4.259
Hua Yongquan,Pu Guojuan,Ou Caiwen,Zhang Xiaoli,Wang Ling,Sun Jiangtao,Yang Zhimou,Chen Minsheng
Here we report a supramolecular hydrogel based on Gd(III)-peptide complexes with dramatically enhanced magnetic resonance (MR) performance. The hydrogelations were formed by adding Gd(III) ion to the nanofiber dispersion of self-assembling peptides naphthalene-Gly-Phe-Phe-Tyr-Gly-Arg-Gly-Asp (Nap-GFFYGRGD) or naphthalene-Gly-Phe-Phe-Tyr-Gly-Arg-Gly-Glu (Nap-GFFYGRGE). We further showed that, by adjusting the molar ratio between Gd(III) and the corresponding peptide, the mechanical property of resulting gels could be fine-tuned. The longitudinal relaxivity (r 1 ) of the Nap-GFFYGRGE-Gd(III) was 58.9 mM −1 S −1 , which to our knowledge is the highest value for such peptide-Gd(III) complexes so far. Such an enhancement of r 1 value could be applied for enzyme detection in aqueous solutions and cell lysates.
研究领域:
生物材料学
·
医学影像学
·
生物化学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Chunling Yang,Qianhong Ren,Xiaomei Liu,Yi Liu,Botao Zhang,Ping Zhou,Hua Li
Artificial bone fillers are essentially required for repairing bone defects, and developing the fillers with synergistic biocompatibility and anti-bacterial activity persists as one of the critical challenges. In this work, a new agarose/gadolinium-doped hydroxyapatite filler with three-dimensional porous structures was fabricated. For the composite filler, agarose provides three-dimensional skeleton and endows porosity, workability, and high specific surface area, hydroxyapatite (HA) offers the biocompatibility, and the rare earth element gadolinium (Gd) acts as the antibacterial agent. X-ray photoelectron spectroscopy detection showed the doping of Gd in HA lattice with the formation of Gd-HA interstitial solid solution. Attenuated total reflection Fourier transform infrared spectroscopy imaging suggested chemical interactions between agarose and Gd-HA, and the physical structure of agarose was tuned by the Gd-doped HA. Cytotoxicity testing and alizarin red staining experiments using mouse pro-osteoblasts (MC3T3-E1) revealed remarkable bioactivity and osteogenic properties of the composite fillers, and proliferation and growth rates of the cells increased in proportion to Gd content in the composites. Antibacterial testing using the gram-positive bacteria S. aureus and the gram-negative bacteria E. coli indicated promising antibacterial properties of the fillers. Meanwhile, the antibacterial properties of composite filles were enhanced with the increase of Gd content. The antibacterial fillers with porous structure and excellent physicomechanical properties show inspiring potential for bone defect repair.
研究领域:
生物材料
·
组织工程
·
生物医学工程
✓ 已验证
DOI
高影响因子
Nature Communications
·
2026
·Vol. 17
·期 1
·1909
·
IF 15.7
Yang Bin,Li Deyang,Deng Renren,Zhao Jian,Wang Yubin,Xu Shiqing,Lei Lei
Persistent luminescence materials are promising for night-vision displays, background-free medical diagnostics, and high-resolution radiography, yet achieving efficient violet, yellow, and red emission within a single robust and scalable host remains a longstanding challenging. Here, we overcame this limitation by constructing Gd 3+ -mediated cluster traps within alkaline-earth fluorochlorides to minimize energy loss during electron migration. These clusters serve as both intrinsic emitters and efficient energy transfer platforms for various activators, including Eu 2+ , Sm 2+ , Tb 3+ , and Mn 2+ , enabling bright and spectrally tunable multicolor persistent luminescence upon X-ray irradiation. The persistent luminescence intensity of Eu 2+ is enhanced by up to 32.7-fold upon Gd 3+ codoping. Moreover, violet persistent luminescence from Eu 2+ is employed to excite perovskite quantum dots for full-color time-domain dynamic displays, while Sm 2+ emission facilitates low-dose, high-resolution delayed X-ray imaging. These findings establish a generalizable strategy for designing efficient multicolor persistent materials for advanced multifunctional optical technologies.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2024
·Vol. 45
·期 5
·117112
·
IF 5.8
Yaqian Du,Jianbo Li,Jun Wang
Compared with perovskite SrTiO 3 , SrO(SrTiO 3 ) 2 exhibits lower thermal conductivity , while maintaining a high Seebeck coefficient , making it a promising material for photothermoelectric conversion. However, the relationship between its infrared and thermoelectric properties remains unexplored. This study examines the effect of Gd doping on these properties of SrO(SrTiO 3 ) 2 . Increased Gd doping induces a gradual transformation of SrO(SrTiO 3 ) 2 -based into a SrTiO 3 -based material, resulting in a composite comprising three phases and a notable reduction in thermal conductivity . At 973 K, the thermal conductivity decreases to a minimum of 1.4 W m −1 K −1 , which is 23 % lower than undoped SrO(SrTiO 3 ) 2 and 51 % lower than SrTiO 3 . Like SrTiO 3 , SrO(SrTiO 3 ) 2 absorbs infrared radiation in the 8–14 μm range. Although the highest ZT value reaches only 0.06 at 973 K, it shows a positive correlation with infrared emissivity. These findings are valuable for advancing the application of thermoelectric effects and the development of high-performance infrared materials.
研究领域:
材料科学
·
凝聚态物理
·
功能材料
·
能源材料
·
红外光学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）