JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Runfang Yang,Kai Zhang,Wei Yan,Chunyang Li,Yiwen Long,Maosheng Wu,Xiaolin Cheng,Hongwei Han,Xingguang Zhang,Mingxing Zhang,Guozhong Wu
Ni 3 (NO 3 ) 2 (OH) 4 positive electrode material was for the first time synthesized by gamma ray radiation under ambient conditions, and systematically investigated the synthesis mechanisms and electrochemical performance. The electrochemical performance of Ni 3 (NO 3 ) 2 (OH) 4 electrode can be regulated by controlling the absorbed dose. Ni 3 (NO 3 ) 2 (OH) 4 -200 kGy displays a remarkable electrochemical performance for supercapacitor, including a high specific capacity (1,086.7 C g –1 at 1 A g –1 ), good rate capability (50.6% at 15 A g –1 ), fast Faraday reaction kinetics, and excellent electrochemical cycle stability (90.8% retention at 5 A g –1 , after 5,000 cycles). Furthermore, the assembled Ni 3 (NO 3 ) 2 (OH) 4 -200 kGy//AC hybrid device exhibits a notable energy density of 99.8 Wh kg –1 at a power density of 849 W kg –1 (1 A g –1 ), and excellent electrochemical cycle stability, retaining ~92.5% of its initial capacitance after 5,000 cycles at 1 A g –1 . This work provides a new reaction pathway for the synthesis of inorganic materials and expands the potential application of radiation technology for electrode materials.
研究领域:
材料科学
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电化学
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纳米技术
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辐射化学
·
储能
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Benqiang Cen,Rui Yang,Kexun Li,Cuicui Lv,Bolong Liang
Nitrate pollution has become an increasingly serious water pollution problem worldwide. Capacitive deionization (CDI) technology is an emerging water treatment technology that can efficiently remove nitrate in water with advantages of simple process, high water recovery rate, low cost and energy consumption. In this work, we engineer a covalently bonded quaternized activated carbon (QRAC) material by silanization and investigate its selective adsorption of nitrate in mixed solution with extended voltage capacitive deionization (eV-CDI) mode. The results show that (1) the QRAC electrodes achieve selective adsorption due to the different adsorption binding energies of the quaternary ammonium group with Cl - and NO 3 – . The selectivity coefficient of QRAC-5 to NO 3 – reaches 2.7 at 0.4 V and the electrosorption capacity is 140% higher than that of AC in 5/5 mM KCl/KNO 3 solution. (2) The electrosorption of QRAC electrodes are dominated by two aspects: physical adsorption by external electric field which occurs in the incipient stage and ion exchange adsorption by quaternary ammonium groups occurring in the following stage. (3) CDI experiments in simulated municipal wastewater show that SO 4 2- had a negative effect on the adsorption capacity of NO 3 – , but QRAC electrode can still achieve separation effect in Cl - /NO 3 – solution system. These results show that covalently bonded quaternized activated carbon can achieve the effective separation and removal of NO 3 – in polluted water, and our work provides new insights into the selective electrosorption of CDI technology.
研究领域:
环境科学
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材料科学
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高影响因子
Reaction Chemistry & Engineering
·
2025
·
IF 3.1
Xue Luo,Jiahui Liu,Danhui Li,Lili Zhao,Hualiang An
Cyclopentanone self-condensation to 2-cyclopentylidenecyclopentanone is one of the key steps in synthesizing high-density fuels. In this study, MgAl-LDO(NO3−) catalysts, prepared via coprecipitation, demonstrated good catalytic performance. Meanwhile, Mg2Al-LDO(NO3−) catalysts with different Mg/Al ratios were explored. Characterization by XRD, NH3-TPD and CO2-TPD revealed that Mg2Al-LDO(NO3−) possessed appropriate acid–base active sites, correlating with its enhanced catalytic performance. Under optimized reaction conditions, cyclopentanone conversion reached 85.9% with 98.8% selectivity toward 2-cyclopentylidenecyclopentanone. Furthermore, the reusability of the catalyst was investigated. XRD, SEM, and N2 adsorption–desorption analyses indicated that structural changes in the Mg2Al-LDO(NO3−) catalyst led to its deactivation. GC-MS analysis of the reaction system identified the primary by-product as 2,5-dicyclopentylidenecyclopentanone. Based on these findings, a plausible reaction network is proposed.
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JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
·
2013
·Vol. 66
·期 1
·133-138
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IF 1.66
Peng Shusen,Zhao Wenjie,Zeng Zhixiang,Li He,Xue Qunji,Wu Xuedong
In this report, hybrid silica sol–gel coating was prepared using Ce(NO 3 ) 3 (Sol-Ce) as catalyst. Structure, surface morphology and anticorrosion ability of Sol-Ce solution/coating were studied by infrared spectroscopy (IR), scanning electron microscopy, energy dispersive spectrometer (EDS), potentiodynamic scan (PDS) and electrochemical impedance spectroscopy (EIS). IR results showed that Ce(NO 3 ) 3 had a stronger influence on reactivity of alkoxysilane. EDS results revealed that the fraction of Fe in Sol-Ce coating was significantly lower than regular acid-catalyzed hybrid silica sol–gel coating (Sol-Ac) and Sol-Ac with Ce(NO 3 ) 3 -doped coating (Sol-Ac/Ce). The results of PDS and EIS demonstrated that Sol-Ce coating had better anticorrosion ability than Sol-Ac and Sol-Ac/Ce on carbon steel. The enhanced anticorrosion performance of the Sol-Ce coating might result from the following two reasons: (a) Ce(NO 3 ) 3 as a catalyst could alleviate the negative effects of low pH with using acid catalyst (dissolution of carbon steel) and (b) Ce(NO 3 ) 3 could impede corrosion of carbon steel as corrosion inhibitor.
研究领域:
材料科学
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表面工程
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腐蚀与防护
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无机化学
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电化学
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DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
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2018
·
IF 2.21
Jinyuan Bai,Yang Liu,Yanjun Hou,Shuhong Wang
A new luminescent europium(III) bis-β-diketonate complex, Eu 2 (PBT) 3 (NO 3 ) 3 (PBT = 1,1-(pyridine-2,6-diyl)bis(4,4,4-trifluoro-1,3-dione), was incorporated into the poly(methylmethacrylate) (PMMA) matrix and formed nanofibers via electrospinning technology. The different characterization techniques were adopted to reveal the effect of Eu 2 (PBT) 3 (NO 3 ) 3 on the spatial structure and optical properties of the nano-composite fibers obtained. The doping enhances the thermal stability and filament-forming properties for a series of PMMA-supported composite nanofibers Eu/PMMA, and in particular, the doping concentrations of 11 wt% also showed more efficient luminescence properties. Furthermore, the Judd-Ofelt theory was applied in this study to explain the effect of the distribution of Eu 2 (PBT) 3 (NO 3 ) 3 and the mutual effect of the Eu 2 (PBT) 3 (NO 3 ) 3 coordination compound and surrounding fractions of PMMA.
研究领域:
材料科学
·
光学
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DOI
高影响因子
CRYOGENICS
·
2026
·
IF 2.5
Changkun Wang,Zuhua Chen,Jun Shen,Yong-Chang Lau,Heng Tu,Changmin Xiong
Single crystals of Ce 2 X 3 (NO 3 ) 12 ·24H 2 O (X=Cu, Co, CXN) were successfully synthesized, all crystallizing in the trigonal space group R ¯ 3 . Under a magnetic field variation of 0-9 T at 2 K, Ce 2 Cu 3 (NO 3 ) 12 ·24H 2 O and Ce 2 Co 3 (NO 3 ) 12 ·24H 2 O exhibit large magnetic entropy changes of 15.18 J·kg -1 ·K -1 and 16.19 J·kg -1 ·K -1 , respectively. Notably, the magnetic entropy changes of these novel crystals significantly exceed that of Ce 2 Mg 3 (NO 3 ) 12 ·24H 2 O (CMN), which is only 6.33 J·kg -1 ·K -1 under identical conditions. Meanwhile, the refrigerant capacity (RC), constrained-range equivalent refrigerant capacity product (RCP) and temperature-averaged entropy change (TEC) of CXN are also comprehensively superior to those of CMN. These performances suggest that CXN are promising candidates for ultra-low temperature magnetic refrigeration applications.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Yijie Cai,Bingxi Song,Chaoyang Liu,Xingyu Wang,Long Liu,Lei Chen,Zongjie Li,Yingying Cao,Yanqiang Zhang
In this study, a novel sulfonic acid-functionalized ionic liquid N,N,N-triethyl-4-sulfobutan-1-aminium nitrate ([Btem-SO3H][NO3]) was synthesized as a nitrating agent. The cation and anion of [Btem-SO3H][NO3], respectively, provide an acidic environment and a nitro source, enabling green nitration of TMETN (Trimethylolethane trinitrate). It was found that [Btem-SO3H][NO3] exhibited good thermal stability up to 170 °C. The acidity of [Btem-SO3H][NO3] increases with a decrease in the water content. When the water content is lower than 9%, the nitration efficiency remains unchanged. The [Btem-SO3H][NO3] system exhibited a ΔTad of 57.62 °C and an MTSR of 30.54 °C, which are significantly lower than 88.15 and 36.96 °C of the fuming HNO3 system. Under optimized conditions, a TMETN yield of 95% was achieved, and the ionic liquid maintained ideal activity after five recycling cycles, outperforming fuming nitric acid (89% yield, poor recyclability). Mechanism analysis showed that the reaction of [Btem-SO3H][NO3] with Ac2O to form acetyl nitrate (CH3COONO2) is a key step in the entire nitration reaction. These findings demonstrate that [Btem-SO3H][NO3] reduces waste acid emissions and improves thermal safety and reusability while maintaining high nitration efficiency, providing a promising strategy for replacing traditional nitric acid systems and achieving green and sustainable synthesis of nitrate esters.
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高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Jianghui Bai,Zhipeng Fan,Haitong Tang,Guangshe Li,Liping Li
Tunable multicolor luminescence materials can flexibly meet the needs of smart lighting, enabling efficient light energy use and minimizing waste. Lead-free hybrid double perovskites A2MIMIII(NO3)6 hold great potential in luminescence, benefiting from their tunable composition, high light absorption, low synthesis cost, and environmental friendliness. However, achieving tunable multicolor emission within a single matrix of these materials has yet to be realized. In this study, a series of [(CH3)4N]2KEu1–xTbx(NO3)6 single crystals have been synthesized using an environmentally friendly and mild aqueous solution evaporation method. The two emitter centers, Tb3+ and Eu3+, display energy transfer from Tb3+ to Eu3+. The emission color of the as-synthesized crystals gradually changes from red to orange, then to yellow, and finally to green with an increase of Tb3+ concentration, achieving yellow and green light emission in the three-dimensional rare-earth hybrid double perovskites for the first time. Green emission from [(CH3)4N]2KTb(NO3)6 displays the highest quantum yield at 87%. The millisecond-level emission decay time and high decomposition temperatures (365 °C) of [(CH3)4N]2KEu1–xTbx(NO3)6 single crystals highlight their potential for use in luminescent devices and phosphors, among other fields.
研究领域:
材料科学
·
光学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2013
·
IF 4.675
Kaiqiang Wu,Dongjie Wang,Lianyi Shao,Miao Shui,Rui Ma,Mengmeng Lao,Nengbing Long,Yuanlong Ren,Jie Shu
For the first time, Cu(NO 3 ) 2 · x H 2 O ( x ≤ 2.5) is investigated as a new lithium storage anode material for lithium-ion batteries. The impressive characteristic of Cu(NO 3 ) 2 · x H 2 O( x ≤ 2.5)/Li cell is the high initial discharge capacity reaching to around 2200 mAh g −1 . To make a comparison, Cu(NO 3 ) 2 ·2.5H 2 O electrodes are used as raw materials and heat-treated at 80, 120 and 160 °C. Among all the three samples, Cu(NO 3 ) 2 · x H 2 O ( x < 2.5) obtained at 160 °C shows the highest reversible capacity of 597.6 mAh g −1 and the best cycling stability after 30 cycles. The difference in electrochemical behaviors is attributed to the variation of surface morphology , crystal water and particles size after heat-treatment at different temperatures. Besides, the thermal reaction results also show that Cu(NO 3 ) 2 · x H 2 O ( x < 2.5) obtained at 160 °C has the highest thermal stability among all the three samples after repeated cycles. The present findings can provide the fact that Cu(NO 3 ) 2 · x H 2 O (≤2.5) may be a promising anode material for lithium-ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储
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产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2026
·
IF 6.2
Hussin Elkik,Muhammad Mujahid Iqbal,Aqsa Munawar,Zhihua Yang,Fangfang Zhang,Shilie Pan
The progress of all-inorganic Ruddlesden–Popper (RP) perovskites broadens the selection of materials suitable for optoelectronic applications, especially in improving stability and performance. Two new alkali metal calcium halide nitrate-based layered RP perovskite variants, Rb2Ca(NO3)2Cl2 and Cs2Ca(NO3)2Cl2, have been synthesized through a facile solution evaporation method. Remarkably, the title compounds exhibit a unique RP perovskite-like nitrate layered structure with significant birefringence (0.099–0.104@546 nm) and short ultraviolet (UV) absorption wavelengths (220–225 nm). In-depth structural investigation and theoretical analyses indicate that the birefringence substantially arises from the planar triangular [NO3] groups. This study not only enhances the structural diversity of layered perovskites but also provides an effective strategy for the continued investigation of all-inorganic birefringent optical materials in the UV region.
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高影响因子
CERAMICS INTERNATIONAL
·
2024
·Vol. 51
·期 14
·18384-18391
·
IF 5.1
Fangliang Shen,Bingheng Sun,Tao Feng,Conghui Huang,Yin Hang,Benxue Jiang,Long Zhang,Jintai Fan
This work aims to fabricate the Yb:LuScO 3 sesquioxides transparent ceramics for use in ultrafast and ultrashort laser technology. 1 at.% Yb:LuScO 3 nanopowders were fabricated using the glycine-nitrate process. ZrO(NO 3 ) 2 was selected as the precursor of ZrO 2 which functions as a sintering aid. Yb:LuScO 3 transparent ceramics with different ZrO 2 content were fabricated by vacuum sintering at 1780 °C and HIPing at 1650 °C, among which the ceramic with 7 at.% ZrO 2 showed the highest transmittance, reaching 81 % at 2000 nm. The ceramic achieved a maximum output power of 1.5 W at 1038 nm with a slope efficiency of 34.8 % and tunable wavelength range exceeding 22 nm. The results demonstrated that Yb:LuScO 3 transparent ceramics can be considered as promising materials in 1 μm solid-state laser applications.
研究领域:
材料科学
·
光学工程
·
固体激光技术
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无机非金属材料
·
先进陶瓷
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DOI
高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Jiaqi Li,Ziming Shang,Ying Meng,Qianrui Lv,Fubo Luan
TiO 2 -based photocatalytic nitrate reduction is highly efficient for nitrate treatment. However, TiO 2 powders present challenges in recovery and reuse, necessitating immobilization to enhance recyclability. Additionally, existing research primarily focuses on the role of photogenerated electrons in nitrate removal, neglecting the impact of simultaneously generated free radicals on the reaction. To investigate the synergistic effects of electrons and free radicals in recyclable photocatalytic nitrate reduction, this study layered TiO 2 with specific crystal facets and a silver coating on a recyclable plane. Results indicate that hydroxyl radicals (·OH) can reoxidize ammonia nitrogen, inhibiting the interfacial reduction process and adversely affecting nitrate removal. Exposing the reductive (101) crystal facet and depositing silver nanoparticles helps promote electron migration to the nanoparticle surface for participation in the reduction process, while reducing free radical formation. This approach increases the nitrate degradation rate by 2.38 times compared to TiO 2 with the exposed (001) crystal facet. In contrast, the photocatalytic reduction efficiency of TiO 2 with exposed oxidative (001) crystal facet is reduced due to increased free radical formation influenced by surface positive charges. This study provides a cost-effective and reusable solution for nitrate removal in water, enhancing its potential in practical water treatment applications.
研究领域:
环境科学
·
材料科学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）