BIOMASS & BIOENERGY
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2025
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IF 5.8
Xu Liu,Zewang Liu,Haojie Chen,Guang zai Nong
This study developed a synergistic activation-doping strategy using Wild Jujube Pits as a carbon source. The K 2 CO 3 /(NH 4 ) 2 SO 4 /H 3 BO 3 ternary system synchronously modulates pore evolution and heteroatom doping, successfully constructing N/O/B/S-co-doped hierarchical porous carbon (JS1211). Characterisation results demonstrate that JS1211 possesses a high SSA of 1496 m 2 g −1 with hierarchical porosity (micropores: 0.4–0.8 nm; mesopores: 2–10 nm). XPS analysis confirms uniform co-doping of N (7.55 at%), B (6.04 at%), S (0.56 at%), and O (15.78 at%), where pyridinic-N (49.4 %) and BC 2 O (43.6 %) configurations dominate. DFT calculations reveal a three-tiered doping mechanism proceeding through structural distortion → electronic reconstruction → property optimisation. Electrochemical testing shows JS1211 delivers a specific capacitance of 411 F g −1 at 0.5 A g −1 , with 81.75 % capacity retention at 20 A g −1 and 97.31 % capacitance retention after 5000 cycles (Coulombic efficiency: 100.46 %). The assembled symmetric supercapacitor achieves an energy density of 12.85 Wh kg −1 (Power density: 129.71 W kg −1 ) in a 6 M KOH electrolyte, while retaining 7.85 Wh kg −1 at a power density of 10,335 W kg −1 . This work provides new insights for developing biomass-derived high-performance supercapacitor electrodes.
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MATERIALS RESEARCH BULLETIN
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2025
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IF 5.7
Jinxin Fu,Changrong Zhou,Jinfang Cai,Qingning Li,Changlai Yuan,Jiwen Xu,Guanghui Rao
To meet the demands of aerospace and other fields for stable performance of piezoelectric ceramics in high-temperature environments, ensuring consistent performance across a wide temperature range has become a critical issue to address. This study developed composite ceramics by combining BNT-7BT and BNT-20BKT, both exhibiting morphotropic phase boundary (MPB) characteristics and similar piezoelectric coefficients. The multiphase coexistence in these ceramics preserved high piezoelectric performance ( d 33 ∼162pC/N) while minimizing the adverse effects of quenching on d 33 . The compositional gradient induced by inhomogeneous diffusion pinned domain walls, thereby suppressing domain disordering at high temperatures and effectively restricting the fluctuation of d 33 to ≤11.5% across the operational temperature range until depolarization. The quenching-induced thermal gradient generated a built-in electric field (E b ) that effectively compensated the depolarization field (E d ), enabling the composite ceramics to achieve an ultrahigh depolarization temperature ( T d ) of 195 °C. This work successfully integrates high d 33 , T d , and thermal stability in BNT-based ceramics, offering a promising solution for high-temperature applications.
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JOURNAL OF MOLECULAR STRUCTURE
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2025
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IF 4.7
Xianze Li,Yue Zhong,Tao Su,Yang Li,Wenming Wang,Jing Xie,Chao Wang,Yan Pan,Xiantao Wei,Yong Li
The advancement of White light emitting diodes (WLEDs) drives the demand for efficient red-emitting phosphors with superior thermal stability. In this paper, a series of Sr 3 TaGa 3 Si 2 O 14 : Sm 3+ phosphors with excellent thermal properties were successfully synthesized via high-temperature solid-phase method. The crystal structure, luminescent properties and thermal stability of the samples were systematically investigated. Under 402 nm near-ultraviolet excitation, the fluorescence emission spectra of Sr 3 TaGa 3 Si 2 O 14 : Sm 3+ with different doping concentrations were obtained, and the optimal Sm 3+ doping concentration was found to be 0.03 mol. Co-doping with M ( M = Li + , Na + , and K + ) as charge compensation ions can improve the luminescent performance of Sr 3 TaGa 3 Si 2 O 14 : Sm 3+ . Furthermore, the luminescent intensity ( 4 G 5/2 → 6 H 7/2 ) of this phosphor at 420 K remains at 74.2 % of its initial temperatures (300 K), demonstrating excellently thermal stability. The temperature sensing characteristics based on Fluorescence Intensity Ratio (FIR) technique was investigated and the maximum absolute and maximum relative sensitivities of the Sr 3 TaGa 3 Si 2 O 14 : 3 mol% Sm 3+ samples were 6.52 % and 0.80 %, respectively. In addition, the quantum yield of Sr 3 TaGa 3 Si 2 O 14 : 3 mol% Sm 3+ , 3 mol% Na + was measured to be 44.0 %, and the WLEDs fabricated with it could emit bright white light with CIE chromaticity coordinates of (0.28, 0.33). Therefore, the synthesized phosphors have great potential for applications in optical temperature measurement and solid-state lighting.
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Journal of Energy Storage
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2025
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IF 9.8
Xin-Ying Ren,Min-Peng Li,Wen-Jie Shi,Wei-Hai Yi,Hong-Yan Li,Cai-Xia Zheng,Xiao-Rui Wang,Mao-Cheng Liu,Yu-Xia Hu
Zinc metal is recognized as a highly promising anode material for aqueous zinc-ion batteries due to its high theoretical capacity and favorable oxidation-reduction potential. Nevertheless, uncontrolled zinc dendrite growth and side reactions pose critical challenges to their practical applications. Herein, the amide groups are introduced into microporous polymers (PIM-CONH 2 , denoted PC) via amine functionalization and applied as a surface engineering coating for zinc anodes. The functionalization of amide groups enhances the zincophilicity of the polymer coating through coordination interactions with Zn 2+ , while also forming hydrogen bonds with water molecules to reduce solvation and prevent side reactions. Additionally, the microporous structure of PIM-CONH 2 facilitates the uniform distribution of Zn 2+ , promoting more even ion flow, enhancing dendrite-free zinc deposition, and improving electrochemical stability. Consequently, the PC@Zn||PC@Zn symmetric battery achieves prolonged cycle stability over 1250 h at 0.5 mA cm −2 /0.5 mAh cm −2 . The PC@Zn||Cu asymmetric battery exhibits stable zinc plating/stripping over 2200 cycles at 2.0 mA cm −2 /1.0 mAh cm −2 and achieves an average CE of 99.8 %, which exhibits exceptional Zn plating/stripping reversibility. The PC@Zn||NVO full battery demonstrates outstanding cycling performance, retaining 72 % specific capacity retention after 2000 cycles at 10 A g −1 . This work establishes a generalizable strategy for high-performance zinc metal anodes through rational design of functional microporous polymer interfaces, opening new avenues for sustainable energy storage systems.
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JOURNAL OF FLUORESCENCE
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2024
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IF 2.6
Wang Xuefeng,Mejia Esteban,Zuo Yujing,Lv Zhiyan,Wang Zonghua
The development of fluorescent probes for H 2 S detection especially in living cells is of great significance due to its fundamental role as signal molecule. A promising scaffold for the development of such probes is polydimethylsiloxanes (PDMS), which is cost-effectiveness, non-toxicity, flexibility, and biocompatibility and easy to post-functionalize. Surprisingly, fluorescent probes for H 2 S detection based on PDMS have not been investigated. Moreover, 4-nitro − 2,1,3-benzoxadiazole (NBD) derivates provides high fluorescence quantum yield, a large molar absorption coefficient, and sensitivity to environmental changes. Through reasonable design and adjustment of substituents on the NBD group, precise control of its fluorescence properties can be achieved. Herein, a novel H 2 S fluorescent probe, P-NBD, was designed and synthesized by a one-step aromatic ring nucleophilic substitution of Cl-NBD with a PDMS derivative. Due to the occurrence of the cleavage reaction strategy and the intramolecular charge transfer process, P-NBD can detect H 2 S via a colorimetric method. The limit of detection is down to 93 nM. P-NBD demonstrated considerable detection capability comparable to other reported types of H 2 S probes. Moreover, the probe can also be utilized for H 2 S imaging in HeLa cells. This work provides new insights into the design and synthesis of novel H 2 S probes while also offering experimental evidence for the application of PDMS in cellular imaging.
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Xingyue Yang,Qi Wang,Xianchang Ning,Di Wu,Zhiling Guo,Zhangwen Long,Dacheng Zhou,Tao Han,Jianbei Qiu,Yuan-Hua Lin
Thermally enhanced upconversion luminescence has been widely reported in negative‑thermal‑expansion tungstates, whereas whether and how this phenomenon can occur in positive-thermal-expansion tungstates remains largely unexplored. Here we show that the thermal response of upconversion luminescence in monoclinic MIn(WO 4 ) 2 : 1%Er 3 + , 10%Yb 3+ (M=Li, Na, K) is strongly dependent on the alkali metal ion at the M site. Under 980 nm excitation, the green emission of the K‑containing sample (KIW) continuously increases up to 573 K without quenching, whereas the Li and Na samples show only a transient rise followed by thermal decay. Combining variable‑temperature XRD, XPS, EPR, DFT calculations, and luminescence decay measurements, we attribute this divergence to a competition between two temperature‑activated processes. Lattice distortion enhances radiative transitions by modulating the local crystal field around Er 3+ , while oxygen vacancies introduce nonradiative channels. KIW combines a flexible lattice that sustains continuous distortion with a high oxygen vacancy formation energy that suppresses defect generation, so radiative enhancement dominates across the whole temperature range. The Li and Na hosts, with more rigid lattices and lower defect formation energies, develop oxygen vacancies readily and their distortion saturates, leading to quenching at elevated temperatures. Using the distinct temperature responses of the 520 nm and 650 nm emissions in KIW, a ratiometric optical thermometer achieves an absolute sensitivity of 0.1052 K −1 . This work provides a mechanistic understanding of thermally enhanced upconversion in positive‑thermal‑expansion tungstates and demonstrates a structure‑based strategy for designing high‑temperature‑stable luminescent materials.
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FOOD CHEMISTRY
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2026
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IF 10.4
Qingyi Wei,Xiaojian Fei,Hongbin Pu
Allyl isothiocyanate (AITC) was effectively encapsulated within HKUST-1. • HKUST-1@AITC exhibits a humidity-responsive release mechanism. • The vapor released from HKUST-1@AITC inhibits microbial growth. • HKUST-1@AITC significantly prolonged the shelf life of strawberries. Allyl isothiocyanate (AITC), a volatile compound predominantly found in mustard essential oil, has attracted significant attention as a potent natural antimicrobial agent for postharvest preservation of horticultural products. However, its high volatility, hydrophobicity, and pungent odor limit its application. In this study, a water-unstable metal–organic framework, HKUST-1 (MOF-199), was fabricated using a solvothermal method and functioned as a carrier of AITC. AITC was successfully encapsulated into HKUST-1 via impregnation, yielding HKUST-1@AITC with excellent humidity-responsive release behavior. As the relative humidity (RH) increased from 43% to 98%, the cumulative release rate of AITC rose from 41.06% to 54.82%. Moreover, HKUST-1@AITC and vapor-phase diffusion of AITC released from HKUST-1@AITC have shown to exhibit superior antibacterial activity. Application in strawberries showed that HKUST-1@AITC reduced weight loss by 25.05%, alleviated firmness loss by 39.89%, and effectively extended the storage duration to 7 days. Overall, HKUST-1@AITC shows potential use in active packaging to improve preservation of horticultural products.
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PubMed
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Shuo Yang,Haohang Yuan,Shenghua Xue,He Kang,Shujuan Liu,Qian Ye,Feng Zhou
● A fouling-resistant coating based on silsesquioxane and ionic liquid was prepared via an epoxy-amine reaction. ● The resulting Glass/AE-IL-NH 2 demonstrates good antifouling performance and a significantly reduced friction coefficient. ● The antifouling performance stems from the synergistic effect between ionic liquids and low-surface-energy silsesquioxane. In this work, an epoxy-functional silsesquioxane (AEOS) was synthesized via the hydrolysis-condensation of 3-(glycidyl)propoxy trimethoxysilane and deposited onto glass substrates to form a silsesquioxane coating (Glass/AE). An imidazolium-based ionic liquid containing an amide group (IL-NH 2 ) was subsequently grafted onto the coating through ring-opening reactions, yielding an ionic liquid functionalized silsesquioxane coating (Glass/AE-IL-NH 2 ). The resulted coating exhibited an antibacterial rate exceeding 80% against E. coli and S. aureus , while achieving anti-adhesion removal efficiencies of 80% and 79% against Porphyridium and Dunaliella , respectively. The antifouling function results from the synergistic effect of the low surface energy of the silsesquioxane matrix and the bactericidal activity of the grafted ILs. In addition, the Glass/AE-IL-NH 2 coating demonstrated excellent water-lubrication properties and high optical transparency, making it a promising candidate for marine antifouling applications that require both optical clarity and long-term resistance to biofouling. Download: Download high-res image (245KB) Download: Download full-size image
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JOURNAL OF RARE EARTHS
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2026
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IF 9.6
Biao Xu,Zihao Xu,Chunyu Li,Jian Peng,Xingyu Li,Wubin Dai
Phosphor with thermally stable and highly efficient photoluminescence (PL) is a premise/challenge for use in high-quality phosphor-converted light-emitting diodes (pc-LEDs). Herein, via a facile solid-phase sintering method in air, a negative thermal quenching (TQ) blue emitting SrGa 2 B 2 O 7 (SGB): Bi is reported, mainly associating with the underlying collaborative effect of negative volumetric thermal expansion of rigid host, heterovalent substitution (Bi 3+ → Sr 2+ )-induced V Sr /V O vacancies, and generating self-reduction ions (Bi 2+ ). For charge balance under the condition of temperature rising, both opposite process of self-oxidation (Bi 2+ to Bi 3+ ) and charge release from trap levels can compensate blue-PL loss. This phosphor is comparable to Eu 2+ /Ce 3+ -activated blue-emitting phosphors, and even boasts superior quantum efficiency (QE) and thermal stability. Via artificially codoping Na + for charge compensation, the QE of the SGB:Bi/Na can be further significantly enhanced. Color-tunable PL is achieved via cascade-connected energy transfer (ET) from Bi 3+ to Tb 3+ (green)/Eu 3+ (red) in SGB: Bi/Na/Tb/Eu that possesses high QE/stability than the case of blue/green/red tricolor phosphor blends adopted in warm white LEDs (wLEDs). Finally, the SGB: Bi/Na and SGB: Bi/Tb/Eu/Na are respectively, encapsulated with distinct encapsulants via either traditional or remote “capping” packaging strategy to form blue LEDs and wLEDs, showcasing splendid electroluminescence behaviors and luciferous application prospects.
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INDUSTRIAL CROPS AND PRODUCTS
·
2026
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IF 6.4
Guodian Zhu,Ying Liu,Zhanhui Chen,Qingbing Guo,Jiangzhen Qiu,Buning Zhang,Jinhui Huang,Guoqiang Yin
Replacing α -hydroxyl group with an α , β -unsaturated group markedly enhanced the decomposition reactivity of dimer. • α , β -Unsaturated group promoted C α ─C β bond cleavage, while α -hydroxyl group led to β -O-4 bond cleavage. • α , β -Unsaturated group accelerated reaction rate ∼14-fold at 120 °C. • Dehydration of α -hydroxyl group into α , β -unsaturated group facilitated lignin depolymerization. Lignin is a promising feedstock for the production of monomeric aromatics, which can be further upgraded into valuable chemicals or fuel hydrocarbons. In this work, the effect of the α , β -unsaturated group on the conversion of lignin and its β -O-4 model dimers into monomeric aromatics was investigated. The results showed that replacing the native α -hydroxyl group with an α , β -unsaturated group markedly enhanced the decomposition reactivity of the dimer. Specifically, the α , β -unsaturated group promoted C α ─C β bond cleavage, whereas the native α -hydroxyl group led to β -O-4 bond cleavage. This significant enhancement in reactivity was consistent across varied reaction conditions and enabled near-quantitative yields of monomeric aromatics from the dimer containing the α , β -unsaturated group. Kinetic analyses indicated apparent first-order kinetic behavior for both dimers, showing that the α , β -unsaturated group accelerated the reaction rate by a factor of approximately 14 at 120 °C. Moreover, an α , β -unsaturated group generated in situ via dehydration of the α -hydroxyl group during pretreatment effectively facilitated lignin depolymerization. This work outlines a promising approach for developing efficient lignin depolymerization technologies targeting monomeric aromatics.
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CHEMICAL ENGINEERING JOURNAL
·
2026
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IF 12.5
Jiaqi Ruan,Ke Guo,Bin Wang,Xiao Li,Mengzhu Sun,Yilin Li,Mingkai Liu,Yong Hao,Hongguang Jin
CO 2 sorption-desorption kinetics fitting of Li 4 SiO 4 particles using power-law model • Validated model integrating Pd Ag membrane, CO 2 sorption, and SMR reaction kinetics • Achieved >99% CH 4 conversion and high-purity of H 2 /CO 2 via dual-separation synergy • Net solar-to-H 2 efficiency is enhanced to 35.2% via dual-separation solar reforming • Understood the enhanced CH 4 conversion mechanism in dual-product separation system Solar thermochemical hydrogen production is a promising approach for solar energy utilization and storage. Conventional steam methane reforming remains the dominant industrial H 2 production route, but its feasibility for producing low-carbon-footprint H 2 is constrained by high-temperature (>950 °C), high energy penalties associated with product separation, and high CO 2 emissions. Here, we propose a method of integrating mid-temperature (450–600 °C) concentrated solar energy-driven steam methane reforming with Pd Ag membrane for H 2 separation and Li 4 SiO 4 sorbent for in-situ CO 2 capture. Isothermal sorption-desorption experiments were carried out on synthesized K-doped Li 4 SiO 4 particles under varying temperatures and CO 2 concentrations, with the kinetics fitted by a power-law model. Moreover, a one-dimensional transient model of sorption-enhanced Pd Ag membrane reactor was validated by the fixed-bed experimental platform with a relative error of less than 2%. Systematic research based on multiphysics modeling demonstrates that the ordered conversion and synergy of H 2 and CO 2 can achieve multiple objectives of high conversion rates, significant temperature reduction, acquisition of high-purity H 2 , and decarbonization. The Pd Ag membrane and alternating Ni-catalyst/Li 4 SiO 4 sorbent maintain low H 2 /CO 2 partial pressures, driving the equilibrium toward near-complete methane conversion. Numerical results demonstrate that this method enables nearly complete conversion of CH 4 at a flow rate of 360 mL/min with simultaneous separation of high-purity H 2 at a significantly reduced temperature of 500 °C. The first-law thermodynamic, net solar-to-H 2 , and exergy efficiencies are enhanced to 70.9%, 35.2%, and 64.8%, respectively. The methane saving rate and CO 2 reduction rate are 14.4 and 39.5 g/h, respectively. Mid-temperature (450–600 °C) concentrated solar energy-driven steam methane reforming with Pd Ag membrane for H 2 separation and Li 4 SiO 4 sorbent for CO 2 in-situ capture. Download: Download high-res image (193KB) Download: Download full-size image
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CERAMICS INTERNATIONAL
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2026
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IF 6
Yue Wang,Zhiping Wang,Xin Li,Jiaxin Li,Hao Li,Li-Qian Cheng
The development of dielectric ceramics with high energy storage performance (ESP) is essential for the advancement of high-power capacitors and pulsed-power systems. However, achieving simultaneous improvements in both recoverable energy density ( W rec ) and energy storage efficiency ( η ) remains a significant challenge. In this study, the complementary advantages of the paraelectric CaZr 0.5 Ti 0.5 O 3 (CZT) and Bi 0.5 Na 0.5 TiO 3 (BNT) are first leveraged to synthesize the BNT-CZT (Δ S config = 1.15R), thereby enhancing the relaxor characteristic. Subsequently, K 0.5 Na 0.5 NbO 3 (KNN) is introduced to modulate the configurational entropy (Δ S config ), yielding a series of BNT-CZT- x KNN ( x = 0.05, 0.1, 0.15, 0.2) high-entropy ceramics (Δ S config = 1.57R, 1.77R, 1.89R, 1.96R). This strategy effectively delays polarization saturation, while simultaneously suppressing the remnant polarization ( P r ), thereby achieving superior comprehensive ESP. Δ S config = 1.89R ceramic achieves a high W rec of 5.75 J/cm 3 and η of 79.5%. Furthermore, the material exhibits exceptional thermal and frequency stability, with variation rates maintains below 6.2% and 4.5% across the tested ranges, respectively, while simultaneously demonstrating ultra-fast charge-discharge rates. In summary, this synergistic strategy demonstrates excellent effect in enhancing the comprehensive ESP of BNT-based relaxor ferroelectric ceramics.
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