JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
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2026
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IF 4.1
Li Shu,Wei Wenjie,Cao Zhanmin
This investigation employed high-temperature drop calorimetry to determine the high-temperature heat capacities ( C p ) of Sb 6 O 13 and three polymorphs of perovskite-type Ca 6 Sb 2 O 11-δ : cubic (Cub), tetragonal (Tet), and orthorhombic (Orth). The temperature-dependent C p relationships for Sb 6 O 13 , Cub-Ca 6 Sb 2 O 11 , Tet-Ca 6 Sb 2 O 11 and Orth-Ca 6 Sb 2 O 11-δ were derived as: C p (Sb6O13) = 493.05 + 6.61 × 10 −11 T -9498750 T −2 (573–973 K); C p (Cub-Ca6Sb2O11) = 550 + 2.00× 10 −6 T −22848000 T −2 (573–1273 K); C p (Tet-Ca6Sb2O11) = 481.03 + 1.92 × 10 −9 T -7780332.5 T −2 (573–1273 K); C p (Orth-Ca6Sb2O11-δ) = 492.474 + 3.63× 10 −9 T− 8940348.47 T −2 (573–1273 K), and then used for computing changes in entropy and Gibbs free energy.
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JOURNAL OF MATERIALS SCIENCE
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2026
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IF 4.4
Lu Yuanyuan,Wang Yiqing,Shen MengYun,Yang PengYu,Chen GuangLi,Lv Zaosheng,Huang Yanfen
The environmental risks of conventional fluorine-based superhydrophobic coatings have gained prominence due to the growth of the idea of green and sustainable development as well as the textile industry’s growing environmental demands. As a result, the creation of environmentally benign, multifunctional, superhydrophobic coated fabrics that are free of fluorine has become a research focus. Nitrogen-doped titanium dioxide (N–TiO 2 ) particles were created using urea as a nitrogen source. These particles were subsequently mixed with environmentally friendly biomass-derived coconut shell activated carbon powder (CSAC). By adding the low-surface-energy material hydroxyl-terminated polydimethylsiloxane (HTPDMS) using a straightforward impregnation procedure, a strong functional superhydrophobic material was further produced, leading to N–TiO 2 @CSAC/HTPDMS (NTCH)-coated cotton fabric. While the ecologically friendly and fluorine-free HTPDMS offers low surface energy and improves the adhesion between the particles and the cotton fabric, guaranteeing environmental stability, N–TiO 2 and CSAC contribute to the micro-/nanohierarchical roughness in this composite. With a water contact angle (WCA) of 159.8°, this coated fabric has exceptional superhydrophobicity. The fabric’s high superhydrophobic qualities allow it to prevent liquid contamination in a variety of hostile situations, even after repeated mechanical abrasion, continuous washing, acid and alkali soaking, and UV irradiation. The fabric demonstrated an 85.92% photocatalytic effectiveness against Rhodamine B (RhB) solution after 4 h of UV exposure. Additionally, the modified fabric showed good self-cleaning qualities and photocatalytic self-healing capabilities following oleic acid contamination. Furthermore, the modified fabric performs exceptionally well in oil–water separation, with a separation effectiveness of over 95.00% for a variety of oil-based compounds. In particular, dichloromethane has a separation efficiency of 99.50%. The material is recyclable, and the oil–water separation efficiency is above 97% even after ten cycles. There are many potential applications for this discovery, including enhanced treatment of industrial oily wastewater, environmental self-cleaning, and sustainable water treatment. Graphical abstract
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 9
·603
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IF 5.4
Wang Yue,Li Zetong,Wang Jie,Bian Ziyang,Yang Zhenshan,Li Hefu
A practical surface-enhanced Raman scattering (SERS) substrate is reported constructed by depositing Ag nanoparticle dimers (Ag NDs) onto a polydimethylsiloxane (PDMS) film with macroscopic cavity arrays (MCA). This design integrates the synergistic advantages of large-aperture and shallow-depth MCA, as well as Ag NDs with abundant nanogaps, achieving a well-balanced combination of sensitivity, uniformity, and operability for rapid testing. The open MCA structure, fabricated using commercial toothbrush bristles as a template, not only facilitates analyte enrichment through spatial confinement but also serves as a patterned scaffold for depositing densely plasmonic Ag dimer arrays, which generates high-density SERS hotspots. The optimized Ag NDs@MCA substrate exhibits desirable SERS performance, including good sensitivity, satisfactory uniformity, and reliable batch-to-batch reproducibility. Furthermore, the naked-eye-distinguishable cavities allow direct visual positioning of detection sites, significantly simplifying testing operation. Coupled with a portable Raman spectrometer, the as-prepared SERS substrate achieved fast trace determination of malachite green (10⁻ 6 M) in lake water and thiram (10⁻ 7 M) on apple surfaces. This low-cost, practical SERS substrate demonstrates great potential for on-site environmental monitoring and food safety screening. Graphical
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PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
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2026
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IF 3.5
Chen Yuan,Chen Yuzhu,Li Yiduo,Wang Luyue,Ma Jie
A multifunctional fluorescence sensor is an important analytical method for detecting water quality. Herein, PCBH-FS, a fluorescence sensor, is first constructed by dispersing a new compound PCBH in THF-H 2 O (fw 60%, v/v). PCBH-FS exhibits a distinct red-shifted emission from 405 to 475 nm and a “turn-on” fluorescence response to Fe 3+ and Al 3+ in the pH range of 5–9, and PCBH-FS exhibits a good fluorescence response to H + in the pH range from 1 to 5. The Al 3+ -PCBH system can be used for F − detection, while the Al 3+ -PCBH and Fe 3+ -PCBH systems can be used for sequential AcO − detection in THF/H 2 O mixed media. The binding ratio and the possible sensing mechanism between cations and PCBH molecules are discussed clearly. The LOD of the PCBH-FS reaches 0.44 µM, 0.36 µM, 2.02 µM, and 1.45 µM for detecting Fe 3+ , Al 3+ , F − , and AcO − in turn. The sensor provides a simple “on-off” & fluorescent-shift co-detection strategy for sequential detection of multiple ions in aqueous solutions.
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JOURNAL OF MATERIALS SCIENCE
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2026
·Vol. 61
·期 35
·26311-26326
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IF 4.4
Geng Laihong,Wang Xiaoyi,Li Ting,Wang Yanqing,Li Jiyan,Liang Weidong
Phase change materials (PCMs) face challenges of low thermal conductivity and poor photothermal conversion efficiency in thermal energy storage applications. To address these issues, the microstructure of materials can be engineered by constructing channel structures to enhance heat transfer pathways, or by incorporating thermally conductive fillers to improve thermal performance. In this study, novel aerogels (CMC-PVA-BP) with a directional pore structure were prepared via a directional freezing method, using polyvinyl alcohol (PVA) and sodium carboxymethyl cellulose (CMC) as the matrix, along with black phosphorus nanosheets (BP) and multi-walled carbon nanotubes (MWCNTs) as synergistic photothermal and thermally conductive fillers. The resulting CMC-PVA-BP30 aerogel exhibits a porosity of 76.70%, an average pore diameter of approximately 0.461 μm, and a compressive strength of 0.74 MPa at 80% strain, indicative of its favorable mechanical properties. After loading hexadecanol (HD) into the aerogel, the composite PCM (HD/CP-BP30) achieves a phase change enthalpy of 208.75 kJ kg −1 , which remains at 196.30 kJ kg −1 after 100 cycles. The thermal conductivity of the HD/CP-BP90 increases by 283.25% compared to pure HD, reaching 0.6132 W m −1 K −1 . Its photothermal conversion efficiency reaches 91.72%, and it also exhibits a certain thermoelectric effect. These results indicate that the composite material combines efficient thermal storage, rapid heat transfer, and excellent photothermal conversion performance, showing significant potential for applications in solar photothermal conversion and thermoelectric energy storage. Graphical abstract In this work, structurally stable composite phase change materials (HD/CP-BP) were constructed by encapsulating hexadecanol into the CMC-PVA-BP aerogels framework via directional freezing. The materials effectively prevent leakage during the phase change process and exhibit excellent mechanical properties, high photothermal conversion efficiency, reliable thermal storage capacity, and a certain thermoelectric response.
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Science China-Chemistry
·
2026
·
IF 9.8
Tang Ruixin,Li Xiaolin,Li Ying,Hao Qiuyan,Huang Wenjie,Liang Limin,Deng Yida,Zheng Xuerong,Liu Hui
The sluggish oxygen evolution reaction (OER) hinders efficient water splitting, with conventional adsorbate evolution mechanisms (AEM) facing inherent activity limitations. While the lattice oxygen activation mechanism (LOM) offers a promising pathway for enhanced activity, its practical implementation often grapples with stability issues, especially under industrial-level conditions. Herein, we report a novel ultrathin, bilayer high-entropy MoMnFeCoNiCu LDH nanosheet with a unique graphene-like wrinkled morphology. The strategic introduction of high-valent molybdenum triggers a fundamental shift in the OER mechanism from AEM to LOM, as unequivocally confirmed by in situ Raman spectroscopy and 18 O isotope gas-phase mass spectrometry. This unique Mo-triggered lattice oxygen activity leads to excellent performance: the catalyst achieves a remarkable 235 mV overpotential at 10 mA cm −2 in alkaline media, and maintains 500 h stability at 200 mA cm −2 . Crucially, when integrated into an anion exchange membrane water electrolyzer (AEMWE), our catalyst demonstrates excellent stability by maintaining consistent performance at an unprecedented 1.0 A cm −2 for 200 h, highlighting its immense potential for industrial-scale water electrolysis.
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Waste and Biomass Valorization
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2026
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IF 3.1
Zhang Yinuo,Wang Lili,Mu Ziyu,Zhang Xueke,Zheng Kaiyuan,Ma Hongxue
Rice is a major staple crop worldwide, and the management of its abundant straw is crucial. In this work, methyl cellulose (MC) as a film-forming agent and rice straw (RS) are used to prepare composite film (MRS) for constructing a high-output flexible triboelectric nanogenerator (MRS-TENG). The MRS-TENG achieves an open-circuit voltage (V OC ) of 272 V, representing a 2.06 times higher voltage than that of RS-TENG. The MRS-TENG successfully monitored human motion and powered 117 LEDs as a self-powered source. The MRS film shows eco-friendly characteristics, releasing primarily CO 2 and H 2 O during combustion without harmful emissions. The variable temperature infrared spectroscopy showed that the MRS structure was stable from − 30 to 150 °C. The V OC of MRS-TENG can still show good stability across a wide temperature range (10–90 °C) and high humidity (50–90% RH). MRS-TENG has excellent flexibility and environmental adaptability, providing a high-value-added application field for renewable straw resources. Graphical
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Nature Communications
·
2026
·
IF 18.1
Huang Zhongnian,Wang Jundi,Ge Xiaohu,Lang Junyu,Cao Yueqiang,Wan Ying,Qian Gang,Yang Yong,Zhou Xinggui,Chen De,Yuan Weikang,Duan Xuezhi
CO 2 hydrogenation over earth-abundant Ni catalysts is attractive for CO-based fuel synthesis, but Ni intrinsically favors methanation. Here we show that ordered Ni 3 Sn 2 intermetallics tune Ni–CO electron back-donation and switch CO 2 hydrogenation from CH 4 formation to the reverse water–gas shift reaction. Atomic-resolution microscopy and X-ray absorption spectroscopy reveal disruption of extended Ni–Ni ensembles by Sn, while spectroscopy and theoretical calculations show that Ni–Sn d - p hybridization downshifts the Ni 3 d band and weakens Ni→CO 2π* back-donation. The Ni 3 Sn 2 catalyst achieves CO 2 conversion approaching thermodynamic equilibrium with nearly 100% CO selectivity and remains stable for 300 h. In situ infrared spectroscopy, steady-state isotopic transient kinetic analysis and theoretical calculations indicate that H-assisted CO 2 activation, spectator-like formate species and facile CO desorption underpin the CO-selective pathway. Similar behavior over Ni–Ga and Ni–In catalysts suggests a general back-donation strategy for redirecting Ni-based CO 2 hydrogenation.
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Nature Communications
·
2026
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IF 18.1
Ji Guanrui,Zhang Zhen,Li Juan,Liu Xiaolei,Wang Zeyan,Mao Liang,Chen Xincheng,Wei Wei,Li Baojun,Lou Zaizhu
As a vital industrial feedstock, carbon monoxide (CO) is widely employed in pharmaceutical, electronic and fine chemical synthesis, yet its efficient production in high purity remains challenging. Here we report a solar-driven route to high-purity CO from formic acid using a nonmetallic plasmonic photocatalyst based on aluminum-doped tungsten oxide (Al-W 18 O 49 ). Plasmon-derived hot electrons drive the cleavage of C-H in adsorbed formic acid, while a concomitant photothermal effect markedly accelerates the overall kinetics. This synergistic mechanism lowers the apparent activation energy of HCOOH dehydration to 10.5 kJ mol −1 , substantially below its thermocatalytic barrier of 80.6 kJ mol −1 , and enables a CO production rate of 1.88 mol g −1 h −1 under 1 W cm −2 irradiation. A continuous-flow reactor operated stably for 350 hours, delivering CO at a maximum rate of 2000 L m −2 h −1 under concentrated sunlight. This work develops a practical photocatalytic system for the sustainable production of high-purity CO.
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Nature Communications
·
2026
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IF 18.1
Kuang Juner,Su Han,Zhu Jiaqi,Zhong Yu,Wang Xiuli,Tu Jiangping
All-solid-state lithium metal batteries offer high energy density and enhanced safety, yet mechanical instability at both positive electrode/solid electrolyte and Li metal/solid electrolyte interfaces severely limits cycling stability and rate performance, particularly at a low stacking pressure. Here, we report a facile, industry-compatible strategy to refine polycrystalline Li 5.5 PS 4.5 Cl 1.5 grains using Al 4 C 3 abrasives. The resulting Al 4 C 3 -engineered Li 5.5 PS 4.5 Cl 1.5 exhibits reduced average particle size and a narrowed size distribution. The refined electrolyte grains enable a high relative density in both anolytes and composite positive electrodes. Beyond particle refinement, Al 4 C 3 in the anolyte stabilizes the Li/electrolyte interface through its high modulus, low electronic conductivity, and favorable interfacial mechanics, enabling a high critical current density/capacity of 3.2 mA cm ‒2 /3.2 mAh cm −2 . Leveraging our designed electrolyte as both anolyte and catholyte, the all-solid-state lithium metal batteries demonstrate stable cycling performance under a low stack pressure of 4 MPa and a positive electrode loading of 1.4 mAh cm −2 , sustaining over 1500 cycles at 1.4 mA cm ‒2 . This study provides a potentially simple and scalable approach to optimize solid electrolyte particles and interfacial mechanics.
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JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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2026
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IF 3.1
Hou Yuancheng,Li Ming,Wang Yingjia,Song Qingqing
To address the limitations of TiO 2 as promising material that can provide photocathodic protection (PCP) for metals, a novel technique of photo-assisted electrochemical doping (PED) is developed to prepare Na-doped TiO 2 . Introducing light irradiation during electrochemical doping at an appropriate voltage leads to higher incorporation of sodium into TiO 2 , as well as the generation of more oxygen vacancies and Ti 3+ defects. These changes result in a narrower bandgap, enhanced photogenerated electron-hole separation, and faster electron transfer, ultimately improving the PCP performance of the materials. The mechanism of PED has been analyzed. The Na-doped TiO 2 prepared via PED at the optimal voltage of -1.4 V vs. SCE exhibits a photocurrent density of 180 µA/cm 2 and an open-circuit potential of -0.408 V when coupled with 316 stainless steel (316 SS) in simulated seawater without a hole scavenger. These values provide more effective cathodic protection for 316 SS than those obtained with pristine TiO 2 or with Na-doped TiO 2 prepared via conventional electrochemical doping in the absence of light. This work offers a facile and effective strategy to improve the doping reaction efficiency for preparing Na-doped TiO 2 through electrochemistry method.
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KOREAN JOURNAL OF CHEMICAL ENGINEERING
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2026
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IF 3.4
Guo Yun,Du Ming,Gao Yian,Zheng Yanqing,Du Linyan
This study introduces a sustainable and environmentally friendly process for selective co-extraction of Ni 2+ and Co 2+ from leaching solution of spent ternary lithium-ion batteries (LIBs) with neodecanoic acid (V10). The extraction conditions were systematically optimized, and a process for reducing extractant dissolution loss in the raffinate was specifically designed, with both the extraction and extractant recovery steps integrated into a continuous mixer-settler operation. Experimental results showed that under optimal conditions, the extraction efficiency of Ni and Co consistently exceeded 99.9%, and the concentrations of Li and Mg in the strip solution remained below 1 mg/L. This process achieved both ultra-high extraction of Ni and Co and deep separation from Mg and Li. Furthermore, the chemical oxygen demand (COD) of the raffinate was reduced from around 10,000 mg/L to below 1,000 mg/L, demonstrating the effectiveness of this method in significantly decreasing COD. In addition, the extraction mechanism and the mechanism for reducing extractant dissolution loss were also verified. This work provides insights for developing a potentially practical process based on the V10 extraction system to improve selective co-extraction of Ni and Co from complex solutions while reducing extractant dissolution loss.
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