JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Yi Ding,Zhengdi Jiang,Yanjun Li,Hui Dan,Xirui Lu,Yushan Yang,Tao Duan
Zircon , ZrSiO 4 , has a structure that can incorporate actinides. Therefore, the susceptibility of the zircon structure to irradiation damage has been investigated by accelerated irradiation experiments. Synthetic Zr 1− x Nd x SiO 4− x /2 ( x = 0, 0.01, 0.10) ceramics were irradiated with 0.5 MeV 4 He 2+ ions (fluences 1 × 10 14 –1 × 10 17 ions/cm 2 ) at room temperature. The irradiation effects on phase structure and chemical stability of the ceramics were investigated. It is found that the main crystal structure is maintained, however, little amorphization is leaded as a result of intensified irradiation. Raman spectra reveal that the main peaks slightly broaden and weakened with increasing fluence, indicating little amorphization has been induced by irradiation. The irradiation resistance is enhanced by the growing neodymium content. Moreover, microtopography and element distribution have no changed even after irradiation. Although the LR Nd increases slightly with increasing Nd loading and irradiation, the excellent chemical stability (∼10 −4 g m −2 d −1 ) is maintained.
研究领域:
材料科学
·
核科学
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2022
·Vol. 29
·期 27
·41439-41454
·
IF 5.19
Liu Chengkun,Shi Kailun,Lyu Keliang,Liu Dongwu,Wang Xue
The wide usage of neodymium (Nd) in industry, agriculture, and medicine has made it become an emerging pollutant in the environment. Increasing Nd pollution has potential hazards to plants, animals, and microorganisms. Thus, it is necessary to study the toxicity of Nd and the mechanism of Nd transportation and detoxification in microorganisms. Through genome-scale screening, we identified 70 yeast monogene deletion mutations sensitive to Nd ions. These genes are mainly involved in metabolism, transcription, protein synthesis, cell cycle, DNA processing, protein folding, modification, and cell transport processes. Furthermore, the regulatory networks of Nd toxicity were identified by using the protein interaction group analysis. These networks are associated with various signal pathways, including calcium ion transport, phosphate pathways, vesicular transport, and cell autophagy. In addition, the content of Nd ions in yeast was detected by an inductively coupled plasma mass spectrometry, and most of these Nd-sensitive mutants showed an increased intracellular Nd content. In all, our results provide the basis for understanding the molecular mechanisms of detoxifying Nd ions in yeast cells, which will be useful for future studies on Nd-related issues in the environment, agriculture, and human health.
研究领域:
分子生物学
·
环境科学
·
遗传学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Yehong Zhang,Xiangyu Li,Zhidong Pan,Shanjun Ke,Yanmin Wang
This paper was to synthesize praseodymium-doped neodymium molybdate allochroic pigments with different molar ratios of molybdenum (Mo), neodymium (Nd) and praseodymium (Pr) through solid-state reactions. The pigments synthesized were investigated by X-ray diffraction (XRD), selected area electron diffraction (SAED), thermogravimetry and differential thermal analysis (TG-DSC), diffuse reflectance spectroscopy , X-ray photoelectron spectroscopy (XPS) and colorimeter. The results show that a pure neodymium molybdate (i.e., Nd 2 MoO 6 ) can be formed after sintering at 1000 °C for 3 h, and praseodymium-doped neodymium molybdate can be synthesized after sintering at 1000 °C for 3 h due to praseodymium ions entering in the lattice of Nd 2 MoO 6 . The crystal structure in the pigment synthesized can transform from cubic to tetragonal depending on the molar ratio of neodymium/molybdenum and sintering procedure. The color properties of pigments were measured in color space CIE L*a*b* under different standard illuminants (i.e., solar-light (D65), incandescent light (A), cool white fluorescent lamp (F2), and three-band fluorescent lamp (F11)). The results show that the colors of the pigments vary under different illuminants. According to the color difference (Δ E ) analysis, neodymium molybdate pigment exhibits a maximum color difference of 10.69, and the maximum color difference of praseodymium-doped neodymium molybdate pigment with doping content of 0.2 increases to 17.63 due to the Pr 3+ ions substitution for Nd 3+ ions in the lattice. In addition, the color difference of the pigments with allochroic effect was discussed based on the colorimetry. The color difference of the pigments is due to a high reflectance region at 540–550 nm and a low reflectance region at 380–500 nm.
研究领域:
材料科学
·
无机化学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Zhidong Jin,Jinbo Zhao,Lin Liu,Fei Liu,Zhou Wang,Fenglong Wang,Jiurong Liu,Yue Mou,Lili Wu,Xiao Wu
Water vapor greatly interferes with gas sensing characteristics of metal oxide semiconductors (MOS). Consequently, for the first time, Nd 2 O 3 -loaded In 2 O 3 porous nanorods were synthesized which exhibited excellent H 2 S sensitivity along with prominent humidity-independent characteristics, whereas pristine In 2 O 3 without Nd 2 O 3 showed deteriorated H 2 S sensing features under increasing ambient humid conditions in a wide operating temperature range. The mechanism of humidity-independent H 2 S sensing properties was researched via X-ray photoelectrons spectroscopy (XPS), in-situ Fourier Transform infrared spectroscopy (in-situ DRIFTS) and the corresponding gas sensing measurements, which is in close relations with the inhibition of chemisorbed oxygen and scavenging hydroxyl groups on In 2 O 3 surface induced by surficial Nd 2 O 3 component. This strategy poses a cutting-edge comprehending of temperature-dependent humidity-interference on MOS, paves a novel route for fabricating H 2 S sensors with exceptional sensitivity, selectivity and anti-humidity properties, which will be quite conducive for real-time exhaled breath analyses in disease diagnosis.
研究领域:
材料科学
·
传感器技术
·
医学诊断
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Hongxing Chen,Renquan Wang,Jun Li,Chang Liu,Xiaojiao Yang,Ying Liu
The combination of high coercivity and resistivity is a strong requirement for permanent magnets to resist thermal demagnetization under complex operating conditions. However, this still remains a challenge for conventional strategies, which always sacrifice the maximum energy product as the coercivity or resistivity increases. In this work, we report a unique strategy of introducing only 0.1 wt% of insulating nano-diamonds (NDs) into the hot-deformed Nd-Fe-B magnets to significantly and simultaneously improve both magnetic properties ( H ci , B r , (BH) max and H k / H cj ) and resistivity. In particular, the coercivity increased by 60% from 746 to 1193 kA/m. Further microstructure observations indicate that this exceptional effect stems from NDs can effectively inhibit the formation of coarse grains and optimize the distribution of Nd-rich phases, ensuring a strong pinning effect to enhance hard magnetic performance. Meanwhile, the presence of additional grain boundaries and NDs can also lead to higher resistivity by preventing the movement of free electrons. Our work provides a distinctive strategy for interface modification with excellent comprehensive performance in permanent magnets.
研究领域:
材料科学
·
磁学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xiaomeng Ni,Jingjing Liu,Fangxian Xu,Jing Zhang,Sai Jiang,Bijun Fang,Huafei Guo,Ningyi Yuan,Jianning Ding,Shuai Zhang
Doping the light absorber layer of antimony chalcogenides with extrinsic ions is an effective approach for improving their photovoltaic quality. These dopant ions generally reside at positions other than the crystal lattice or form an alloy (e.g., AgSb(S,Se) 3 ) with a poor device performance. Therefore, incorporating such ions into an antimony chalcogenide lattice such that there is a positive influence on device quality would be highly useful. Herein, doping of Nd 3+ for Sb 2 (S,Se) 3 is carried out via a modified hydrothermal deposition process. Notably, these ions are incorporated into the crystal lattice and migrate to the CdS/Sb 2 (S,Se) 3 interface after doping, which are characterized using X-ray diffraction, X-ray photoelectron spectroscopy, and time-of-flight secondary ion mass spectrometry. Nd 3+ doping produces benign effects on the crystal orientation, film morphology, optoelectronic properties, and defect passivation of the Sb 2 (S,Se) 3 films. Consequently, all the photoelectrical parameters of Sb 2 (S,Se) 3 solar cells doped with Nd 3+ are enhanced, delivering a remarkable efficiency of 8.24 %. Furthermore, the best device stored in air only shows a slight decrease in efficiency in the 2400-h aging test. Overall, this study provides an effective doping strategy to improve the photovoltaic quality of Sb 2 (S,Se) 3 films.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
LUMINESCENCE
·
2024
·Vol. 39
·期 5
·e4754
·
IF 3.2
Hongbin An,Haonan Ju,Zhiliang Ren,Hang Yang,Xinru Huang,Dong Tu
Near-infrared mechanoluminescence is a phenomenon that produces high penetrating near-infrared light under external stimulation. Near-infrared light coincides with the biological window, lower optical loss, and the fact that the mechanoluminescence material is a medium that converts mechanical energy into light energy. The near-infrared mechanoluminescence material has potential application prospects in the fields of biological imaging, medical diagnosis, and monitoring of building materials. In this article, we report on a perovskite-type Sr 3 Sn 2 O 7 :Nd 3+ near-infrared mechanoluminescence material, and its peaks locate in the first near-infrared window (800–1000 nm) and the second near-infrared window (1080, 1350 nm), respectively. Under the condition of pre-sintering with Li 2 CO 3 as flux, the best sintering conditions are obtained, and the luminescence of material is in perfect agreement with the applied mechanical stress. In addition, a near-infrared mechanoluminescence sensor is proposed to solve the problem of building damage and timely maintenance.
研究领域:
材料科学
·
生物医学工程
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Yuhan Yang,Zhidong Pan,Ti Zhang,Yanmin Wang
A series of (Nd 1- x Er x ) 6 MoO 12 ( x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0) pigments were synthesized via solid-state reactions. The pigments were characterized by X-ray diffraction (XRD), thermogravimetry and differential thermal analysis (TG-DSC), diffuse reflectance spectroscopy and colorimetry. The results show that erbium-doped rhombohedral neodymium molybdate (i.e., (Nd 0.8 Er0.2) 6 MoO 12 ) pigment with the maximum Δ E ∗ max of 18.48 and the NIR reflectance of 85.63 % synthesized under the optimum condition has an allochroic effect under different illuminants. Erbium ions doping in Nd 6 MoO 12 (R) is beneficial in improving the near-infrared (NIR) reflectivity and allochroic effect of the pigment. The temperature on the surface of aluminium panels coated with (Nd 1- x Er x ) 6 MoO 12 pigments is 17.2 °C lowder than that of aluminium panels uncoated due to the higher NIR reflectance of (Nd 1- x Er x ) 6 MoO 12 pigment for heat insulation. In addition, the chromaticity analysis of (Nd 0.8 Er0.2) 6 MoO 12 pigment reveals that the allochroic effect of the pigment is mainly affected due to the characteristic absorption peaks at wavelengths of 600 nm and 530 nm, and the influence of the characteristic absorption peaks at a wavelength of 600 nm on the allochroic effect of the pigment is more dominant rather than that of the characteristic absorption peaks at a wavelength of 530 nm.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Optical Materials
·
2025
·Vol. 13
·期 6
·2402515
·
IF 7.2
Ruichen Xu,Biao Zheng,Xiaochen Fang,Xiaolong Sun,Jinquan Hong,Hai Huang,Weiguo Wang,Jun Wang
Multifunctional optical materials with temperature sensing and anti-counterfeiting properties play an essential role in the commercial applications. Herein, Mn 2+ /Nd 3+ co-doped Cs 2 AgInCl 6 (CAIC) lead-free double perovskites (DPs) is synthesized through a hydrothermal method, which exhibits visible to near-infrared (NIR) luminescence and reversible photochromic properties from yellowish to dark purple. The mechanism investigations on the photoluminescence and photochromic phenomena reveal that the incorporation of Mn 2+ ions not only acts as an intermediary in the energy transfer process from the host exciton to Nd 3+ ions, but also plays a pivotal role in the reversible photochromic response. The temperature-dependent luminescence, attributed to the contrasting thermal responses of Mn 2+ and Nd 3+ ions, enables precise temperature sensing via the fluorescence intensity ratio method. In addition, the integration of visible red emission, NIR luminescence, and photochromic properties in a single CAIC: Mn 2+ /Nd 3+ DPs, offers a multilevel anti-counterfeiting strategy. The multifunctional CAIC: Mn 2+ /Nd 3+ DPs would open up new avenues for advanced optical applications, particularly in the realms of temperature sensing and security anti-counterfeiting.
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
Nanoscale
·
2014
·Vol. 6
·期 11
·5634-5638
·
IF 6.739
Weikuan Duan,Yanyan Zhang,Zhongyue Wang,Jingyi Jiang,Chen Liang,Wei Wei
K5NdLi2F10 nanocrystals were synthesized by a novel synthetic route in the liquid phase, which could improve the morphology and reduce the size effectively, for the first time. The luminescence intensities of the K5NdLi2F10 nanocrystals and their dispersion in polyethylene glycol 400 (PEG-400) approximate to that of neodymium doped phosphate glass (3 mol%), while the lifetimes of the nanocrystals alone and when dispersed with Nd3+ ions (1 × 1020 cm−3) are 303.4 μs and 174.6 μs respectively. Based on the Judd–Ofelt analysis, the emission quantum yield of the dispersion reaches 39.57%. In all, the K5NdLi2F10 nanocrystals and their dispersion have promising applications as liquid laser materials and biological fluorescent markers.
研究领域:
材料科学
·
光学
·
生物标记物
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FLUORINE CHEMISTRY
·
2018
·
IF 1.879
Qiang Liu,Shuai Zhang,Kai Du,Wa Li,Qiang Yin,Pei-jun Cai
Two neodymium(III) fluorou ternary complexes, [Nd(C 5 H 2 F 6 O 2 ) 3 (C 18 H 15 OP) 2 ] (C 5 H 2 F 6 O 2 = hexafluoroacetylacetone, C 18 H 15 OP = triphenylphosphine oxide) ( 1 ) and [Nd(C 5 H 2 F 6 O 2 ) 3 (C 12 H 24 N 3 O 4 P) 2 ] (C 5 H 2 F 6 O 2 = hexafluoroacetylacetone, C 12 H 24 N 3 O 4 P) = tri(4-morphollno) phosphine oxide) ( 2 ) have been synthesized by mild condition. The single crystals suitable for X-ray measurement were obtained and the structures of the two complexes were determined by X-ray diffraction in solid states. Single crystal analysis revealed that the two complexes were both eight-coordinated with one central Nd ion and eight O atoms from ligands. They were crystallized in monoclinic symmetry with P2 1 /c and monoclinic symmetry C2/c space group, respectively. The complexes were characterized by IR-spectroscopy, thermogravimetric, elemental analyses and fluorescent. In fluorescence spectra, the two complexes both exhibit characteristic neodymium-centered emission.
研究领域:
无机化学
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2017
·
IF 3.012
Xueliang Li,Luyao Zhang,Zhongqiang Ding,Yang He
The carbon aerogel (CA) uniformly doped neodymium oxide (Nd 2 O 3 ) nanoparticle was synthesized by an effective in-situ method via acid catalyzing and used as the cathode matrix for lithium-sulfur batteries . The doped materials with interconnected pore structure of CA and evenly dispersed Nd 2 O 3 offer crucial confinement role to anchor sulfur and suppress the loss of polysulfide ions for interrelate function of S/polysulfides by Nd 2 O 3 . The composited sulfur electrodes present high electrochemical performances and initial discharge capacities, especially, the Nd2-CA/S sample gains initial discharge capacity of 1327 mAh g − 1 at 0.2 C and remains at 1082 mAh g − 1 after 100 cycles. Meanwhile, it still remains capacity of about 907 mAh g − 1 at 0.5 C after 300 cycles. The enhanced electrochemical performances can be ascribed to the crosslink mesoporous CA materials and well distributed neodymium oxide. Furthermore, the metal additive also takes promoting effect on redox reactions of the Li/S batteries presenting higher discharge voltages.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）