ACS Applied Polymer Materials
·
2022
·
IF 4.855
Yuxia Ren,Min Li,Haiyuan Ye,Zhengqiang Xia,Qi Yang,Gang Xie,Sanping Chen,Shengli Gao,Jack Y. Lu
Energetic coordination polymers (ECPs) have good application prospects as combustion promoters of solid propellants. In this work, based on a rigid proton-free nitrogen-rich ligand 1,3,5-tri(1H-1,2,4-triazol-1-yl)benzene (TTB) and an environmentally friendly copper ion, two ECPs, {[Cu6(TTB)2(CN)6]·CH3CN}n (1) and {[Cu(TTB)(NO3)2]·CH3CN}n (2), were prepared by the solvothermal method using an anion regulation strategy. X-ray crystallographic analyses, thermal stability, kinetic parameters of exothermic decomposition process, thermal safety performances, mechanical sensitivity, and theoretical detonation characteristics of two ECPs were, respectively, explored. Meanwhile, their promoting effects on the combustion decomposition of ammonium perchlorate were investigated by differential scanning calorimetry tests, thermal decomposition kinetics, and surface morphology analyses. Experimental results indicated that ECP 2 has good application potential in the solid propellant field.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2015
·
IF 2.288
Qingtang Zhang,Juntao Mei,Xiaolong Xie,Xiaomei Wang,Junyan Zhang
Lithium-rich layer oxide Li 1.2 Ni 0.2 Mn 0.6 O 2 nanoparticles were fabricated through solution combustion synthesis by controlling NO 3 – /CH 3 COO – ratio of the precursors. The relationships between the NO 3 – /CH 3 COO – ratio and structure as well as electrochemical performance of Li 1.2 Ni 0.2 Mn 0.6 O 2 nanoparticles are investigated. XRD reveals that Li 1.2 Ni 0.2 Mn 0.6 O 2 nanoparticles obtained with a suitable NO 3 – /CH 3 COO – ratio of 3:1 (LLO-3N1A) is composed of the smallest nanocrystallite of 18 nm. SEM reflects that the average primary particles of LLO-3N1A are the smallest with a size of 35 nm. Those unique characteristic guarantee the excellent electrochemical performance of LLO-3N1A. LLO-3N1A exhibits a specific capacity of 252.3 mA h g −1 at 0.1 C. In addition, LLO-3N1A also shows best rate capability among the four prepared Li 1.2 Ni 0.2 Mn 0.6 O 2 samples.
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DOI
高影响因子
Inorganic Chemistry Frontiers
·
2023
·Vol. 10
·期 16
·4845-4853
·
IF 7
Yi-Lei Lv,Lei Huai,Yu-Long Wei,Liang Ma,Yue-Qi Wei,Wenlong Liu,Ru-Ling Tang
Combining multiple anions to design compounds with novel structures and excellent optical properties has become a hot research field. In this paper, a novel nitrate oxyfluoride, Hg3O2(NO3)F, has been obtained. Hg3O2(NO3)F features an unprecedented [(Hg3O2F)+]∞ cationic framework constructed by V-shaped HgO2 units and original HgO2F2 tetrahedra and with isolated NO3− anions balancing the charge. Hg3O2(NO3)F is the first nitrate oxyfluoride containing a d10 metal. Importantly, Hg3O2(NO3)F exhibits superior optical anisotropy with the calculated birefringence of Δn = 0.23 at 1064 nm. Based on the theoretical calculation analyses, the good optical anisotropy is mainly derived from the well-arranged V-shaped HgO2 units. This work proves that the strategy of introducing heteranions is effective for exploring high-performance optical materials.
研究领域:
材料科学
·
无机化学
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光学材料
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晶体化学
·
理论物理
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2022
·
IF 8.907
Hui Wang,Enda Ci,Xiaoqing Li,Ying Zhang,Zhenying Zhang,Jianqiang Li
A new eutectic mixture phase change material containing magnesium nitrate hexahydrate and lithium nitrate has been successfully prepared, which can be applied in the field of residential radiator heating due to the suitable phase change temperature and high latent heat. Further, by physical blending magnesium nitrate hexahydrate/lithium nitrate eutectic mixtures and expanded graphite, the new composites were prepared. The crystalline structure, thermal properties, corrosion performance of eutectic phase change materials were systematically measured. The results showed that the best eutectic mixtures had a phase change temperature of 72.35 °C and latent heat of 170.32 kJ/kg, with a little supercooling degree. The thermal conductivity was effectively improved by adding expanded graphite. Meanwhile, corrosion tests suggested aluminum and stainless steel 304 could be the preferred choices as the container. Overall, the prepared eutectic composite materials with superior performances could be a promising candidate for the residential radiator heating field.
研究领域:
材料科学
·
热能存储技术
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Jichao Zhu,Xianli Dong,Kunhao Li,Siyu Tian,Yao Kong,Weitong Chen,Shuping Zhou
In the field of pharmaceutical research and development, the development of nano drug carriers based on intercalation structures has become one of the important development directions. Hydrotalcite (LDHs) and its derivatives have the advantages of low cost, simple synthesis, high drug loading efficiency, good biocompatibility, and easy degradation, and have received widespread attention in the field of biomedicine. Based on this, we synthesized 5-aminosalicylate (5-ASA) intercalated NO 3 based and CO 3 based ZnAl-LDHs drug delivery systems using ion-exchange and chemical co-precipitation methods, respectively. The crystalline structure, morphology, thermal stability, and host-guest interaction were characterized in detail by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Ultraviolet visible spectroscopy (UV), Scanning electron microscopy (SEM), Thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopic (XPS). The drug loading, drug release behavior and release kinetic of 5-ASA intercalated ZnAl-LDHs were studied. The characterization results indicated that the intercalation mode of the drug and the strength of the host-guest interaction are related to the interlayer anion type and synthesis process of ZnAl-LDHs. The amount of 5-ASA loaded into LDHs from an ion-exchange process was 28.6 and 13.8 wt% for NO 3 − and CO 3 2− based LDHs, respectively, whereas it was 6.9 and 10.4 wt% for co-precipitation process. The modeling kinetics results indicated that the release process of 5-ASA by ZnAl-LDHs intercalated with 5-ASA conforms to the parabolic diffusion model. These results indicated that the drug delivery system was controlled by diffusion of 5-ASA ions into aqueous solution through exchange with phosphate anions.
研究领域:
药学
·
纳米医学
·
生物材料
✓ 已验证
产品关联
DOI
高影响因子
Metabolites
·
2022
·Vol. 12
·期 5
·444
·
IF 5.581
Muhammad Khalid Hameed,Wajid Umar,Ali Razzaq,Tariq Aziz,Muhammad Aamer Maqsood,Shiwei Wei,Qingliang Niu,Danfeng Huang,Liying Chang
Nitrogen (N) is an essential element for plant growth and development. The application of a balanced and optimal amount of N is required for sustainable plant yield. For this, different N sources and forms are used, that including ammonium (NH4+) and nitrate (NO3−). These are the main sources for N uptake by plants where NH4+/NO3−ratios have a significant effect on the biomass, quality and metabolites composition of lettuce grown in soil, substrate and hydroponic cultivation systems. A limited supply of N resulted in the reduction in the biomass, quality and overall yield of lettuce. Additionally, different types of metabolites were produced with varying concentrations of N sources and can be used as metabolic markers to improve the N use efficiency. To investigate the differential metabolic activity, we planted lettuce with different NH4+/NO3−ratios (100:0, 75:25, 50:50, 25:75 and 0:100%) and a control (no additional N applied) in soil, substrate and hydroponic cultivation systems. The results revealed that the 25% NH4+/75% NO3−ratio increased the relative chlorophyll contents as well as the biomass of lettuce in all cultivation systems. However, lettuce grown in the hydroponic cultivation system showed the best results. The concentration of essential amino acids including alanine, valine, leucine, lysine, proline and serine increased in soil and hydroponically grown lettuce treated with the 25% NH4+/75% NO3−ratio. The taste and quality-related compounds in lettuce showed maximum relative abundance with the 25% NH4+/75% NO3−ratio, except ascorbate (grown in soil) and lactupicrin (grown in substrate), which showed maximum relative abundance in the 50% NH4+/50% NO3−ratio and control treatments, respectively. Moreover, 1-O-caffeoylglucose, 1,3-dicaffeoylquinic acid, aesculetin and quercetin-3-galactoside were increased by the application of the 100% NH4+/0% NO3−ratio in soil-grown lettuce. The 25% NH4+/75% NO3−ratio was more suitable in the hydroponic cultivation system to obtain increased lettuce biomass. The metabolic profiling of lettuce showed different behaviors when applying different NH4+/NO3−ratios. Therefore, the majority of the parameters were largely influenced by the 25% NH4+/75% NO3−ratio, which resulted in the hyper-accumulation of health-promoting compounds in lettuce. In conclusion, the optimal N applications improve the quality of lettuce grown in soil, substrate and hydroponic cultivation systems which ultimately boost the nutritional value of lettuce.Keywords:ammonium;lettuce;metabolites;nitrogen;nitrate
研究领域:
农业
·
植物科学
·
代谢组学
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DOI
PubMed
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2021
·Vol. 327
·期 3
·1251-1258
·
IF 1.371
Fu Xuan,Zhang Fang,Wu Qiang,Li Yang,Huang Qing-Gang,Yan Ze-Yi
In this study, extraction and separation of thorium(IV) and a few representative rare earths in HNO 3 media was evaluated using trioctylmethylammonium nitrate ([A336][NO 3 ]) ionic liquid. An unexpected novel extraction mechanism was identified based on the studies in the slope analysis and ESI–MS spectrum. The trimer of [A336][NO 3 ] was confirmed to dominate the extraction reaction by ESI–MS spectrum before and after the extraction. The extraction efficiency of La(III), Eu(III) and Lu(III) by [A336][NO 3 ] are much lower than Th(IV) in acid medium, which means that it is possible to separate thorium from rare earths or the rare earth ores by using [A336][NO 3 ].
研究领域:
化学
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2019
·
IF 7.467
Jie Li,Lin Zhang,Furong Qin,Bo Hong,Qian Xiang,Kai Zhang,Jing Fang,Yanqing Lai
Lithium sulfur battery is deemed to one of the most hopefully useable and cost-effective options beyond traditional lithium ion batteries . Nevertheless, the intermediates shuttle effect and the instability of the lithium metal anode are still the significance of barriers to the actual application of lithium sulfur battery. In this work, zirconium oxynitrate (ZrO(NO 3 ) 2 ), which delivers good thermal stability and little hygroscopicity , is proposed as a dual functional electrolyte additive to ameliorate the electrochemical performance of lithium sulfur batteries. For one thing, the ZrO 2+ cations possess a strong affinity to sulfur, which can catalyze the conversion of dissolved polysulfides to S 8 . For another, ZrO(NO 3 ) 2 is negatively charged in the ether electrolyte because of the coordination ability of ZrO 2+ . It displays a strong repulsion to polysulfides which would effectively trap the dissolved polysulfides and prevent the polysulfides from diffusing into the electrolyte phase. Additionally, NO 3 − anions can be reduced and form a stable passivation film on Li-metal anode, which is beneficial to decrease the reacting activity of Li-metal anode upon polysulfides and stabilizing the surface topography of the Li-metal anode. Ultimately, the ZrO(NO 3 ) 2 electrolyte additive observably enhances the discharge capacity and cycle stability of Lithium sulfur battery.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2021
·
IF 5.909
Shuo Yan,Yun Li,Jilin Cao
The calcium nitrate (Ca(NO 3 ) 2 ) waste generated from the production of nitrophosphate fertilizers brings about serious environment and human health issues. Using Ca(NO 3 ) 2 waste and ammonium bicarbonate (NH 4 HCO 3 ) fertilizer as raw materials, higher-value spherical calcite mesocrystals have been synthesized via precipitation method. The synthesis conditions are optimized from the aspects of dispersant, crystal control agent and reaction temperature, and the mechanism that regulates the size and morphology of calcite is illustrated. The synthesized spherical calcite mesocrystals exhibit the small particle size of ca. 5 µm and high specific surface area of 84.44 m 2 /g. Under the dispersion effect of polyvinylpyrrolidone, the adsorption of crystal control agent citric acid on the calcite particles results in the formation of the spherical mesocrystal morphology. The yield of calcite in this process could reach 94.3%. Ca 2+ ion remaining in the mother liquor are further removed in the form of CaCO 3 by addition of calcium oxide , and a mixture of ammonium nitrate and a small amount of NH 4 HCO 3 is obtained by concentrating the filtrate, which can be used as nitrogen fertilizers. This work provides a new insight into the low-cost synthesis of spherical calcite mesocrystals with the high specific surface area and the comprehensive utilization of Ca(NO 3 ) 2 waste.
研究领域:
材料科学
·
环境科学
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产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2023
·Vol. 52
·期 40
·14303-14308
·
IF 4
Zhiyuan Zhang,Die Xu,Zhencheng Wu,Mei Hu,Xin Su,Yineng Huang
The combination of π-conjugated groups [NO3] and Cl-centered polyhedra generates a new birefringent crystal with a perovskite-related framework, KRb2(NO3)2Cl, which is the first alkali metal nitrate chloride synthesized by a mild hydrothermal method. It crystallizes in the orthorhombic space group pbam (no. 55). In addition, KRb2(NO3)2Cl crystals with dimensions up to 7 × 1.5 × 1 mm3 were grown. Notably, KRb2(NO3)2Cl has a short UV cut-off edge (below 228 nm) and a significantly enhanced birefringence (Δn = 0.084 at 1064 nm). Theoretical calculations indicate that the birefringence enhancement mainly derives from π-conjugated [NO3] plane triangles.
研究领域:
材料科学
·
晶体学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Yi Jia,Yi-Gang Ji,Qi Xue,Fu-Min Li,Guang-Tao Zhao,Pu-Jun Jin,Shu-Ni Li,Yu Chen
The nitrate electroreduction reaction (NO3–-ERR) is an efficient and green approach for nitrate remediation, which requires a highly active and selective electrocatalyst. In this work, porous and amorphous cobalt phosphide nanoshuttles (CoP PANSs) are successfully synthesized by using Mg2+ ion-doped calcium carbonate nanoshuttles (Mg-CaCO3 NSs) as the initial reaction precursor via precipitation transformation and a high-temperature phosphidation strategy. Various physical characterizations show that CoP PANSs have porous architecture, amorphous crystal structure, and big surface area. Electrochemical measurements reveal for the first time that CoP PANSs have outstanding electroactivity for NO3–-ERR in a neutral electrolyte. At an applied potential of −0.5 V vs reversible hydrogen electrode, CoP PANSs can achieve a high Faraday efficiency (94.24 ± 2.8%) and high yield rate (19.28 ± 0.53 mg h–1 mgcat–1) for ammonia production, which exceeds most reported values at various electrocatalysts for NO3–-ERR. Thus, the present result indicates that cobalt phosphide nanomaterials have promising application for NO3–-ERR.
研究领域:
材料科学
·
电化学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2021
·
IF 8.198
Jean Claude Munyemana,Jia Chen,Yun Liu,Yongpeng Wang,Hongdeng Qiu
This work demonstrates a simple and versatile deep eutectic solvent (DES)-assisted synthesis of bullet-shaped cerium–zinc oxide (Ce–ZnO) and sheet-like cerium–zinc hydroxide nitrate (Ce–Zn5(OH)8(NO3)2·2H2O). DES could serve not only as a green solvent but also as a superior template to produce these two different hierarchically shaped materials. Interestingly, Ce–ZnO shows catalytic activity toward polymerization of dopamine to initially pink color quinone derivatives with the visible light absorption at 475 nm and finally to blue-emitting polydopamine with highest fluorescence intensity at 480 nm. The catalytic activity of Ce–ZnO can be selectively inhibited by pyrophosphate ions (PPi), which leads to a decrease in the absorbance intensity or fluorescence emission. PPi detection strategies were established, and the linearity was achieved from 0.5 to 100 μM with a low detection limit of 0.05 μM for the fluorometric detection, while the linear detection was 0.5–150 μM and the low detection limit was 0.19 μM for colorimetric detection. This work offers a new opportunity to produce Ce–ZnO and Ce–Zn5(OH)8(NO3)2·2H2O using an inexpensive and eco-friendly solvent, and provides a useful way of detecting PPi. Hence, from these findings, the proposed synthesis strategy is expected to serve as a novel green strategy for preparing hierarchically shaped materials.
研究领域:
材料科学
·
分析化学
·
环境化学
·
纳米技术
✓ 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）