JOURNAL OF THE ENERGY INSTITUTE
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2026
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IF 6.5
Jiawei Han,Peng Lv,Xudong Song,Juntao Wei,Yonghui Bai,Jiaofei Wang,Weiguang Su,Guangsuo Yu
Utilizing carbon-neutral biomass reduces reliance on fossil fuels and lowers carbon emissions. Although thermochemical conversion is efficient, it consumes feedstock for heat, reducing biomass conversion efficiency. Molten salts can enhance reactions and store solar energy; consequently, the coupling of solar energy with molten-salt-assisted biomass thermochemical conversion has attracted significant attention. This study evaluated bio-oil and gas production characteristics from biomass, cellulose, and lignin via conventional and catalytic pyrolysis (the latter using ZnCl 2 , CaCl 2 , and NiCl 2 ) in molten salts. Analysis of the pyrolysis gases and bio-oil revealed the effects of molten salts and catalysts on product generation from biomass, cellulose, and lignin, and suggested potential reaction mechanisms. Results show molten salts and catalysts boost hydrogen intensity: conventional pyrolysis of biomass in molten salts raises it by up to 62.50%, and catalytic pyrolysis by up to 172.67%. Molten salts and catalysts also reduce bio-oil peak area. Catalysts promote deep decomposition, reducing oxygen-containing compounds in detectable volatile compounds. Ni catalysts promote dehydration-condensation, consuming the most water but producing the least H 2 . Zn catalysts promote dehydration, dehydrogenation, and in-situ water reforming, greatly reducing bio-oil oxygenates; and polycondensation releases large-scale H 2 . Ca catalysts show pronounced decarboxylation and dehydrogenation, with feedstock-dependent performance.
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DOI
高影响因子
FUEL
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2026
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IF 7.5
Haozhao He,Tao Wang,Qu Zhang,Bo Li,Xianze Wang,Wenyan Mu,Dongling Wu
The high content of heavy components in coal pyrolysis tar constrains its high-value utilization. Although semi-coke-based catalysts are cost-effective and promising for catalytic upgrading, their performance needs further enhancement. In this study, a novel nickel chloride-lactic acid (NiCl 2 -LA) deep eutectic solvent (DES) was designed. Leveraging nickel-lactic acid coordination and the inherent hydrogen bond network of DES, it penetrates semi-coke to promote nickel-semi-coke reactions, anchor nickel species with good dispersion, and finally synthesize nickel-supported semi-coke-based catalyst (Ni/C) via carbothermal reduction. Characterization results indicated that the Ni/C catalyst possesses a hierarchical pore architecture dominated by mesopores, with an increased specific surface area, enhanced degree of graphitization, and well-dispersed Ni nanoparticles on the semi-coke support. Based on this, during catalytic pyrolysis, the semi-coke support and well-dispersed Ni active sites exerted a synergistic effect, promoting the release of coal pyrolysis volatiles and increasing the tar yield from 8.30 % to 10.90 %. Simultaneously, by facilitating the cleavage of C–H and C–C bonds, they drove the conversion of heavy tar components to light components, elevating the relative content of monocyclic aromatic hydrocarbons from 1.16 % to 3.96 %. Moreover, the proportions of light components (BP ≤ 360 ℃) and light oil (BP ≤ 170 ℃) reached 62.60 % and 18.15 %, respectively, both at relatively high levels. This study validates that the functional properties of DES can be harnessed for the targeted design and preparation of high-activity catalysts, providing a viable strategy for the upgrading of light components in coal pyrolysis tar.
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高影响因子
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
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2022
·Vol. 24
·期 34
·20073-20081
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IF 3.945
Ruifen Shi,Fengyi Zhou,Yu Chen,Zhenghui Liu,Shuzi Liu,Tiancheng Mu
Deep eutectic solvents (DESs) are well-known as novel solvents due to their unique properties, which are indispensable for the development of green chemistry in the future. CoCl2·6H2O and NiCl2·6H2O-based DESs, which could be called magnetic DESs (MDESs) for short in view of their responsive behavior to an external magnetic field, have been widely used in many industrial applications, such as biomass treatment, electrolytes, and material preparation. For better application and full-scale development of these MDESs in various fields, eleven MDESs were prepared in this work by using CoCl2·6H2O and NiCl2·6H2O as hydrogen bond acceptors (HBAs) with alcohols, carboxylic acids and amides as hydrogen bond donors (HBDs), respectively. The intermolecular interactions between the components of MDESs were characterized via FTIR, 1H NMR and DSC analysis. In addition, physicochemical properties including density, viscosity, conductivity, ionicity, pH values, surface tension, thermostability and solvatochromic parameters were investigated. All MDESs exhibit acid characteristics and have good conductivity comparable with ionic liquids (ILs) and other DESs used for electrolytes. The results show that stronger H-bonding networks in Ni-based MDESs make them have higher density, viscosity, polarity and surface tension values than Co-based MDESs. Moreover, all prepared MDESs possess a good conductivity behavior which could be comparable to that of common organic solvents and ILs. According to this work, we could better comprehend the behavior of Co/Ni-based MDESs and choose the appropriate one for particular applications.
研究领域:
化学
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材料科学
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绿色化学
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工业应用
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DOI
高影响因子
JOURNAL OF FLUORESCENCE
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2025
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IF 3.1
Xue Jinxiong,Huang Jingping,Lin Xue,Pan Wuyuan,Ke Fang
MicroRNA-183-5p is a clinically relevant biomarker, yet its detection is hindered by short sequence length, high homology, and low abundance in complex biological fluids. We report a hydrothermally synthesized nickel chloride-decorated graphitic carbon nitride (NiCl 2 @g-C 3 N 4 ) with intrinsic peroxidase-like and fluorescence activities for label-free dual-mode detection. Characterized by multiple spectroscopic and microscopic techniques, the nanocomposite enables quantitative analysis via π-π stacking and van der Waals interactions between the probe and target, eliminating the need for enzymes or fluorescent labels. Under optimal conditions, using the formula LOD = 3Sb/b, the detection limit was calculated as 0.69. This material with broad linear ranges, excellent selectivity, month-long stability, and recovery rates of 97.7-101.6% in spiked serum. This facile and cost-effective platform offers a promising tool for sensitive miRNA quantification in clinical diagnostics.
研究领域:
纳米材料
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生物传感器
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临床诊断
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microRNA检测
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分析化学
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Wenlong Zhang,Chenzheng Liao,Xiaohui Ning
Based on the high safety and low costs, molten salt batteries (Na-S battery, liquid metal battery, ZEBRA battery, etc.) have received more and more attention as large-scale electrical storage technology. However, the high operating temperature of molten salt batteries is still one of the roadblocks that impeded their practical application. Here we present the novel Ni-graphite molten salt battery based on outstanding electrochemical reversibility of the Ni/NiCl 2 redox and intercalation/de-intercalation chemistry of chloroaluminate anions in graphite. By using the low-cost, quaternary inorganic molten salt AlCl 3 /KCl/NaCl/LiCl as electrolyte, the as-designed Ni-graphite battery possesses low operating temperature of 95 °C, and average voltage about 1.7 V. The Ni-graphite battery delivers stable specific capacity of 174 mAh/g at 500 mA/g after 120 cycles, with the capacity retention rate of 98%. In addition, the Ni-graphite battery also shows low material costs about 113.6 $/kWh and high electrode energy density of 289 Wh/kg. This work develops an advanced molten salt battery with low operating temperature and high energy density, as well as provides an alternative means of developing future large-scale power storage equipment based on molten salt batteries.
研究领域:
储能技术
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电化学
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材料科学
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DOI
高影响因子
CRYSTAL GROWTH & DESIGN
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2020
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IF 4.089
Chang-Yu Meng,Feng Feng Huang,Qin Yao Li,Lei Geng
Introduction of divalent metal oxides into the TeO2 matrix can produce the chemical formula Mn[TemO2m+n] ≡ (MO)n(TeO2)m, compounds in which divalent metal oxides provide oxygen ions to the parent compound TeO2, to cleave neutral Te–O net to form various tellurium(IV) oxide anion [TemO2m+n]2n− and divalent metal cations as balanced charges. [TemO2m+n]2n− can form isolated anion, discrete polyanion, one-dimensional chain and ribbon polyanion, two-dimensional (2D) layered polyanion, and 3D tunnel polyanion depending on the ratio of MO/TeO2. In this work, a new type of inorganic compound AE2[Ni(Te4O10)Cl2] ≡ [(AEO)2(TeO2)4](NiCl2) (AE = Ca, Sr, Ba, Pb) can be obtained by introducing NiCl2 into the compound AE2[Te4O10] ≡ (AEO)2(TeO2)4 (AE = Ca, Sr, Ba, Pb). In AE2[Ni(Te4O10)Cl2] ≡ [(AEO)2(TeO2)4](NiCl2), AEO acts as a structural shearing agent to cleave the neutral Te–O layered structures of parent TeO2 into [Te4O10]4– anionic fragments, and the introduced NiCl2 acts as an “adhesive” to recombine [TemO2m+n]2n− anionic fragments to form new [Ni(Te4O10)Cl2] anionic framework and does not provide additional oxygen ions to cleave the parent compound TeO2. AE2[Ni(Te4O10)Cl2] compounds feature 2D 2∞[Ni(Te4O10)Cl2] anionic layers composed by TeO4E, TeO3+1E (where E is the lone pair of electrons of TeIV) distorted trigonal bipyramid, and NiO4Cl2 octahedra, and the spaces between 2∞[Ni(Te4O10)Cl2] layers are filled with AE2+ cations (acting as charge balance) as well as E (protruding from sides of the layers). The optical band gaps of AE2[Ni(Te4O10)Cl2] (AE = Ca, Sr, Ba, Pb) were evaluated to be ∼3.69 eV through extrapolating the UV–vis–near-infrared optical absorption spectra. Thermogravimetric and differential scanning calorimetry measurements indicate that Ca-, Sr-, Ba-, and Pb-compounds are stable below 787, 716, 648, and 517 °C, respectively, under flowing N2 atmosphere. The effective moments estimated by Curie–Weiss equation show that the Ni2+ cations of AE2[Ni(Te4O10)Cl2] (AE = Ca, Sr, Ba, Pb) are all in high-spin ground states.
研究领域:
无机化学
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材料科学
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高影响因子
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