CHEMISTRY LETTERS
·
2015
·Vol. 44
·期 10
·1422-1424
·
IF 1.23
Cao Renping,Luo Wenjie,Xiong Qingqiang,Jiang Shenhua,Luo Zhiyang,Fu Jingwei
Novel deep red phosphor Ba2GeO4:Mn4+ is synthesized and investigated. Emission peaking at 667 nm with excitation 290 nm is observed within the range 610–720 nm due to the 2E → 4A2 transition of Mn4+ ion. The optimal Mn4+ concentration is ca. 0.6 mol %. Luminous mechanism is explained by Tanabe–Sugano energy diagram and configurational coordinate diagram of Mn4+ ion. Ba2GeO4:Mn4+ phosphor can be used as deep red phosphor candidate for red LEDs used in indoor plant cultivation.
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CHEMISTRY LETTERS
·
2016
·Vol. 45
·期 9
·1051-1053
·
IF 1.55
Wang Luanjiao,Rao Pinhua,Yao Wei,Zhang Wenqi
CuSn-codoped CdS (CdS:CuSn) quantum dots (QDs) with different Cu(I) and Sn(IV) doping levels have been successfully synthesized by a simple one-pot procedure. It was found that the doping ratio of Cu(I) and Sn(IV) in CdS QDs significantly affected the photoluminescence (PL) quantum yields (QYs), Stokes shifts, and emission window of as-prepared QDs. Compared to single Cu doping, CuSn codoping further significantly improved the PL QYs of as-prepared QDs (up to 24.6%). The CdS:CuSn QDs may be used as potential emitters in the PL industry.
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CHEMISTRY LETTERS
·
2019
·Vol. 48
·期 12
·1462-1464
·
IF 1.485
Sun Tuan-Wei,Zhu Ying-Jie
The aim of this study is to develop a simple method to grow an ultralong hydroxyapatite nanowire coating on a substrate. The ultralong hydroxyapatite nanowire coating on a glass substrate was synthesized by a one-step calcium oleate precursor solvothermal method. The formation process of the nanowire coating on the glass substrate was investigated, and the morphology, crystal phase and apatite-forming ability were studied. Moreover, the as-prepared hydroxyapatite nanowire coating exhibited excellent apatite-forming ability in simulated body fluid. The as-prepared ultralong hydroxyapatite nanowire coating has great potential for various biomedical applications.
研究领域:
生物材料学
·
医学工程
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CHEMISTRY LETTERS
·
2019
·Vol. 48
·期 8
·795-798
·
IF 1.485
Gan Lu,Xu Cigang,Yang Jiangrong,Ma Yunfeng,Cai Jinguang,Watanabe Akira
This study reports an effective process to prepare holey carbon nanotubes (hCNTs) through a catalytic oxidation reaction under the assistance of Ag nanoparticles. The improved specific surface area and oxygenic functional groups generated during the perforating process endowed hCNTs with highly improved capacitance. Besides, micro-supercapacitors based on hCNTs delivered a specific capacitance of 59.2 mF/cm2 at 0.3 mA/cm2, more than twice that of the 23.8 mF/cm2 for MWCNTs, which is among the best values compared to results reported in the literature.
研究领域:
材料科学
·
能源存储
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CHEMISTRY LETTERS
·
2016
·Vol. 45
·期 7
·732-734
·
IF 1.55
Liu Xinyue,Dai Changqing,Wu Dengfeng,Fisher Adrian,Liu Zhiping,Cheng Daojian
PdAg bimetallic and PdAgCo trimetallic nanoparticles (NPs) are synthesized by a one-pot method in an organic solvent medium. Our results show that the catalytic activity of PdAgCo/C (1133.249 mA mgPd−1) for formic acid oxidation (FAO) is ca. 2.4 times larger than commercial Pd/C (483.563 mA mgPd−1) and 1.7 times larger than PdAg/C (680.741 mA mgPd−1). This study indicates that Co doping in PdAg bimetallic NPs can significantly improve its FAO activity. It is expected that the as-synthesized PdAgCo trimetallic NPs could be used as high-performance catalysts for direct formic acid fuel cells (DFAFCs).
研究领域:
材料科学
·
电化学
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
·
IF 22.1
Bo Feng,Yaxuan Jing,Xiaohui Liu,Yong Guo,Yanqin Wang
The upcycling of waste polyvinyl chloride (PVC) is a grand challenge because of the unmanageable Cl species. Here, we develop a Cl-transfer strategy to upcycle waste PVC into value-added organic chlorides and PE-like polymer with various Cl acceptors (tetrahydrofuran, dibutyl ether and butanol) over Ru/Al 2 O 3 catalyst. The high utilization efficiency of Cl (> 80 %) can be obtained over Ru/Al 2 O 3 at 180 °C, 2Mpa H 2 with tetrahydrofuran as an acceptor within tens of hours. The excellent performance is attributed to key features including Al 2 O 3 for the C-O bond activation and metal Ru for C-Cl bond activation and H 2 dissociation. The remaining PE-like polymer after removing Cl could be regarded as PE-like feedstock and further converted into methane through the same Ru/Al 2 O 3 catalyst. The Cl-transfer system also enables the upcycling of several common PVC-contained wastes and works well in the scale-up test. This work offers a catalytic path to integrate waste PVC plastic into the supply chain of organic chlorides under the context of circular economy.
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高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Yue Zhao,Yujie Xiao,Xian Yang,Xue Zhang
This study presented the synthesis of phosphorus (P) and chlorine (Cl) co-doped carbon quantum dots (P/Cl-CQDs) derived from Epimedium brevicornu Maxim. and established a simple and effective chemiluminescence (CL) system for detecting Sulfacetamide (STM) and Sulfadimethoxine Sodium Salt (STX). Employing traditional Chinese medicine Epimedium brevicornu Maxim. as a green precursor material, (NH 4 ) 2 HPO 4 and NH 4 Cl were utilized as dopants for P and Cl, respectively. The P/Cl-CQDs was synthesized through a one-step hydrothermal method exhibited excellent CL properties, effectively catalyzing the luminol system and markedly amplifying its CL intensity. Both STM and STX were observed to inhibit the CL intensity of the luminol-(P/Cl-CQDs) system. Based on this, a novel CL method combining flow injection technique was established for the detection of STM and STX. Under optimal conditions, the method demonstrated the capability to detect STM in the range of 1–400 × 10 −6 mol/L, with a limit of detection (LOD) of 0.34 × 10 −6 mol/L and a relative standard deviation (RSD) of 1.29 %, and STX within the range of 5–280 × 10 −6 mol/L, with a LOD of 0.16 × 10 −6 mol/L and an RSD of 1.23 %. This method successfully determined the content of STM and STX in pork, with spike recoveries ranging from 100.0 % to 103.8 % for STM and from 98.0 % to 102.3 % for STX.
研究领域:
分析化学
·
材料科学
·
环境科学
·
药物分析
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ANALYTICA CHIMICA ACTA
·
2025
·
IF 6
Chunxue Gu,Shiyi Zhou,Huimin Gan,Yu Zhao,Jiatong Liu,Ming Ma,Hongwei Chu,Bo Chen
Background Protein extraction from plant leaves is a key step in plant proteomics analysis. However, traditional methods often face challenges, including low efficiency, incomplete protein coverage, and environmental concerns. These limitations highlight the need for developing more efficient and environmentally friendly extraction techniques. Ionic liquids (ILs) have shown promise in protein extraction due to their excellent solubility and enzyme compatibility, offering a potential solution to these issues. In this study, we explore the use of short and long alkyl chain ILs to improve protein extraction efficiency from plant leaves. Results Using tobacco K326 as a model plant, a stepwise extraction system was designed with 10% 1-ethyl-3-methylimidazolium chloride ([C 2 MIM]Cl) and 4% 1-dodecyl-3-methylimidazolium chloride ([C 12 MIM]Cl). Both [C 2 MIM]Cl and [C 12 MIM]Cl effectively disrupted the cellulose hydrogen-bond network, facilitating protein release from the plant cell wall, while [C 12 MIM]Cl also enhanced membrane protein solubility, significantly improving the overall protein extraction efficiency. The relative protein concentration achieved with this method was 2.28, which is notably higher than traditional methods using urea (1.21) and SDS (1.47). The method was applied to proteomic analysis of healthy and brown spot disease-affected tobacco leaves, identifying 6858 proteins in total. Among these, 758 proteins were differentially expressed, with 414 upregulated and 344 downregulated in diseased leaves, providing insight into disease-related protein expression. Significance This novel protein extraction method offers a highly efficient alternative to traditional approaches. It significantly enhances protein yield and solubility, providing valuable support for in-depth plant proteomics research. This method is particularly useful for studying plant disease responses, facilitating the identification of disease-related proteins and contributing to the understanding of plant-pathogen interactions.
研究领域:
植物科学
·
蛋白质组学
·
分析化学
·
分子生物学
·
生物化学
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PubMed
高影响因子
Journal of Energetic Materials
·
2017
·
IF 1.557
Xi Li,Qiu-han Lin,Xin-Ying Zhao,Zhi-Wei Han,Bo-liang Wang
Thermal techniques (differential scanning calorimetry (DSC) and the vacuum stability test (VST)), according to STANAG 4147, and non-thermal techniques (Fourier transform infrared (FTIR) spectrometry and X-ray diffractometry (XRD)) were used to examine compatibility issues for 2,4,6,8,10,12-hexanitrohexaazaisowurtzitane (CL-20) with a selection of insensitive explosives, including nitroguanidine (NQ), 2,4,6-trinitrotoluene (TNT), 2,6-diamino-3,5-dinitropyridine-1-oxide (ANPyO), 2,4,6-triamino-1,3,5-trinitrobenzene (TATB), 3-nitro-1,2,4-triazol-5-one (NTO) and 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105). DSC measurements showed that ANPyO, TATB, NTO and LLM-105 were compatible with CL-20. The compatibility of CL-20/NQ, CL-20/TNT, CL-20/ANPyO, CL-20/TATB, CL-20/NTO and CL-20/LLM-105 mixtures was further explored using the VST, which revealed that all the selected insensitive explosives were compatible with CL-20. Possible chemical interactions were suspected for CL-20/TATB from the FTIR results and for CL-20/NTO from XRD analysis. In summary, ANPyO and LLM-105 demonstrated the optimal compatibility with CL-20.
研究领域:
材料科学
·
化学工程
·
爆炸物研究
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高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 10
·期 11
·6007-6015
·
IF 12.732
Min Li,Minmin Wang,Dongyuan Liu,Yuan Pan,Shoujie Liu,Kaian Sun,Yanju Chen,Houyu Zhu,Wenyue Guo,Yanpeng Li,Zhiming Cui,Bin Liu,Yunqi Liu,Chenguang Liu
Single-atom catalysts (SACs) regulated by heteroatoms have displayed great potential as electrocatalysts for highly efficient hydrogen evolution reaction (HER); however, the controllable synthesis of an axial coordination structure of SACs to achieve robust HER performance remains a great challenge. Herein, we have proposed a doping-adsorption-pyrolysis strategy to construct NiN4–Cl active sites with axial Cl coordination for accelerating electrocatalytic HER. The obtained NiN4–Cl SAs/NC catalyst exhibits superior HER activity with low over-potential, small Tafel slope, high turnover frequency, and long-term stability. Density functional theory calculation reveals that the excellent HER performance of NiN4–Cl SAs/NC originates from the axial Cl-coordination-induced electronic localization enhancement, which is beneficial for the adsorption and activation of H* intermediate, thus accelerating the HER process. This work opens a new opportunity for rational design and construction of high-performance SAC catalysts by axial coordination strategy for electrocatalytic application.
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高影响因子
Energetic Materials Frontiers
·
2025
·
IF 3.9
Bo-wei Gao,Yan-ze Liu,Xiao-feng Guo,Xu-ran Xu,Hai-feng Yang,Guang-cheng Yang,Jing Lv,Ling-hua Tan
Based on a simple catechol-amine co-precipitation strategy and biomimetic adhesion characteristics, this study prepared a desensitized CL-20@PCPA core-shell energetic powder using the phenolic and amino compound containing low-cost polycatechol/polyamine (PCPA). The results indicate that the CL-20@PCPA composite powder exhibited an elevated characteristic drop height of impact sensitivity ( H 50 ) of 34.9 cm and a reduced friction explosion probability of 56% compared to pure CL-20. PCPA, containing catechol and amine groups, provided a stable platform for secondary modification to enhance the safety of the powder further. Notably, when the CL-20@PCPA@MXene powder was introduced into a propellant system, the resulting propellants displayed a high H 50 value of 20.3 cm while its heat of detonation remained unchanged. This study provides a simple and low-cost biomimetic interface modification strategy for preparing desensitized energetic materials.
研究领域:
材料科学
·
爆炸物安全
·
界面工程
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高影响因子
International Journal of Environmental Science and Technology
·
2017
·Vol. 15
·期 2
·385-394
·
IF 1.915
Zhuang S. T.,Yin Y. N.,Wang J. L.
Abstract In this paper, we modified chitosan beads in order to simultaneously detect and adsorb Co 2+ from aqueous solution. Firstly, 4-(5-chloro-2-pyridylazo)-1,3-phenylenediamine (5-Cl-PADAB) was used as selective probe for Co 2+ with color changing from yellow to pink, and the UV–Vis spectra showed that the λ
max changed from 439 to 504 nm. Then a novel biomaterial was synthesized with 5-Cl-PADAB (metal indicator), chitosan (biosorbent) and EDTA anhydride (cross-linker and chelating agent). The analysis of Fourier transform infrared and energy-dispersive X-ray spectra proved that 5-Cl-PADAB and EDTA were successfully connected to chitosan. The modified chitosan bead was selective probe for Co 2+ with a remarkable color change from white to pink, and the UV–Vis spectra showed that the λ
max changed from 441 to 459 nm. The adsorption of cobalt ions onto the modified chitosan beads followed pseudo-second-order ( R
2 = 0.99) kinetics and the Langmuir isotherm model ( R
2 = 0.80). Comparing with chitosan beads, the q
e of the modified one increased from 2.00 to 7.97 mg/g. The modified chitosan beads are promising biomaterial for simultaneous detection and removal of Co 2+ from aqueous solution. Graphical Abstract
研究领域:
环境科学
·
材料科学
·
生物化学
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