CRYSTAL GROWTH & DESIGN
·
2024
·
IF 3.2
Juhe Liu,Yuwei Chen,Mengran Sun,Wenhao Liu,Xianghe Meng,Jiyong Yao
Na3LuB8O15, the first sodium lutetium borate in the Na–Lu–B–O system, was prepared by the spontaneous crystallization method. Na3LuB8O15 is crystallized in the centrosymmetric triclinic space group P1¯ with the following cell parameters: a = 6.4047(12)Å, b = 7.3342(13)Å, c = 13.081(2)Å, α = 88.999(7)°, β = 78.631(8)°, γ = 66.622(7)°, and Z = 2. The general configuration of Na3LuB8O15 can be characterized as a network structure created by infrequent multiboron anion chain skeletons [B8O17] and [LuO7] polyhedra shared by oxygen atoms, where Na ions are filled in the pores to balance charges. According to a UV–vis-NIR spectrum investigation, the chemical has a short ultraviolet cutoff edge (185 nm). Thermal analysis reveals incongruent melting compound properties. In addition, a first-principles calculation was conducted to delve deeper into the correlation between the performance and the structure.
研究领域:
材料科学
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无机化学
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晶体学
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光学材料
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固态化学
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Foods
·
2026
·Vol. 15
·期 16
·2886
·
IF 6
Luyao Wang,Xuelian Wu,Yizi Mahai,Wenjing Ma,Lin Zhou,Jing Zhang,Xinhui Wang,Jing Li
Monitoring dopamine (DA) in pork can provide useful information for assessing meat freshness and quality deterioration. In this work, an Fe@N-S-O-C nanocomposite was fabricated as an electrode modifier for DA determination. The Fe@N-S-O-C nanocomposite was synthesized via precipitation followed by calcination using melamine and ferrous sulfate as precursors. The crystal structure, surface chemical composition, and morphology were characterized by XRD, XPS, SEM, and TEM. The Fe@N-S-O-C-modified glassy carbon electrode (Fe@N-S-O-C/GCE) was then evaluated for its electrocatalytic performance toward DA. Under the optimized conditions (pH 6.0), the sensor showed linear responses to DA over 1–65 and 65–220 μM. The sensitivities for these two ranges were 4.357 and 1.685 μA μM−1cm−2, respectively, with an LOD of 40 nM. In addition, the Fe@N-S-O-C/GCE showed excellent reproducibility, good repeatability, and strong anti-interference capability against common coexisting substances. After 30 days of storage, 82.74% of the initial current response was retained by the same electrode. Practical applicability of the sensor was verified in pork samples, with recoveries of 95.97–106.73%. These results demonstrate that the Fe@N-S-O-C/GCE sensor offers a reliable and effective platform for DA detection in complex food matrices.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zhimo Fang,Zhou Zhou,Xiaomeng Li,Dongyang Li,Bin Hu,Haoyu Wang,Lin Zhang,Qin Dai,Kai Li,Yao Kong,Shiguan Yang,Qiang Lu
Superexchange-mediated dual-acceptor sites enable spatial charge separation. • Synergistic single-atom and vacancy engineering creates multifunctional sites. • Cu SA -TO-O V delivered excellent corresponding turnover frequencies of 177.52 h −1 . • The photo-Fenton system exhibited wide pH adaptability and anti-interference. Synchronously and efficiently utilizing photogenerated electrons and holes remains a significant challenge in Fenton-like reaction. Herein, the Cu single-atom (Cu SA ) and oxygen vacancy (O V ) co-modified TiO 2 nanoflake-like catalyst is successfully synthesized. O V modulate the electronic coupling interaction, which is proposed to trigger superexchange -mediated electron transfer from Cu 3 d x 2 − y 2 to Ti 3 d xy via O 2 p y orbitals. Specifically, Cu SA serves as the hole-accepting site for 1 O 2 generation, while O V and Ti 3+ functions as the electron-accepting site for •OH production and contaminant adsorption. The substrate enrichment effect and the free radical/non-radical coupling interaction significantly enhances photo-Fenton catalytic performance, achieving superior sulfanilamide removal efficiency across a broad pH range (3–11) and a high turnover frequency of of 177.52 h −1 . This work not only highlights the potential of active site engineering in designing photo-Fenton catalysts but also advances the development of efficient and sustainable water purification solutions.
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INORGANIC CHEMISTRY
·
2026
·Vol. 65
·期 30
·17706-17716
·
IF 4.6
Jin Cheng-An,Huang Zhiling,Zhang Lianyang,Meng Yue,Xia Guanghua,Xia Shengjie
Photocatalytic nitrogen reduction to ammonia intrinsically
relies
on the synergistic activation of both N 2 and H 2 O molecules by the catalyst. However, achieving simultaneous and
efficient activation of these two species on a single catalyst surface
remains a formidable challenge, constrained by poor N 2 adsorption
and the high dissociation energy barrier of the N≡N triple
bond. To address this, a vacancy engineering strategy was adopted
to design and fabricate a Bi 2 WO 6 photocatalyst
featuring both bismuth and oxygen dual vacancies (V Bi+O -BWO). The oxygen vacancies trap photogenerated electrons for N 2 activation, while bismuth vacancies enhance H 2 O adsorption and facilitate proton generation. Through this synergistic
effect, the photocatalytic nitrogen reduction performance was significantly
enhanced. Experimental results show that V Bi+O -BWO achieves
an ammonia production rate of 113.14 μmol·g –1 ·h –1 , a 4.9-fold enhancement over the unmodified
catalyst. N 2 -TPD results demonstrate that the dual vacancies
effectively enhance N 2 chemisorption, facilitating subsequent
activation. In situ FTIR confirms that N 2 adsorbs and converts
on Bi 2 WO 6 via a distal pathway. This study provides
new insights into the development of high-efficiency dual-vacancy
photocatalytic materials.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xin Wen,Guiqiang Fei,Xue Jiang,Kuan Wang,Mei-Jie Shi,Zhen-Hong He,Weitao Wang,Huan Wang,Xiaojuan Lai,Zhao-Tie Liu
A heterostructured Ag/Cu 2 O-ZrO₂ catalyst was synthesized via an interface engineering strategy. • The Ag/Cu 2 O-ZrO₂ possesses a substantial number of Cu-O-Zr heterointerfaces with dispersed Ag sites • The optimized Ag/Cu 2 O-ZrO₂ catalyst demonstrates exceptional CO₂-to-C 2 fuels conversion performance. • Possible mechanism for boosting electroreduction of CO 2 reduction was proposed. • The present work sheds light on the customization of interfacial engineering with dispersed active sites. The efficient electrocatalytic reduction of carbon dioxide (CO 2 ) into multi‑carbon (C 2+ ) products is critical for sustainable carbon management, yet remains limited by poor selectivity and sluggish C C coupling kinetics. Herein, a heterostructured Ag/Cu 2 O-ZrO 2 catalyst was synthesized via an interface engineering strategy to promote C 2 production during CO 2 electroreduction. The incorporation of highly dispersed Ag nanoparticles and ZrO 2 domains onto Cu 2 O nanocrystals generates abundant Cu-O-Zr heterointerfaces, which synergistically regulate the local electronic environment and intermediate conversion behavior. In this catalytic system, the dispersed Ag sites act as efficient *CO-generating centers to enrich local CO coverage, while the Cu-O-Zr interfacial domains stabilize oxygen-containing C C coupling intermediates and facilitate their subsequent hydrogenation toward C 2 products. Benefiting from the tandem synergy between CO enrichment and interfacial intermediate stabilization, Ag/Cu 2 O-ZrO 2 catalyst achieves a high C 2 Faradaic efficiency of 78.2% and a C 2 partial current density of 17.1 mA·cm −2 at −1.3 V vs. RHE, outperforming Cu 2 O and Cu 2 O-ZrO 2 counterparts. In situ infrared spectroscopy reveals the efficient evolution of key intermediates from *COOH to *CO and subsequently to *OCCO during electrocatalysis. Meanwhile, DFT calculations demonstrate that Ag promotes *CO accumulation and suppresses its premature desorption, whereas the Cu-O-Zr interface stabilizes *OCCO and *CHCHO intermediates and lowers the corresponding energy barriers for C 2 formation. This work provides mechanistic insights into tandem interface engineering for selective CO 2 electroreduction toward multi‑carbon fuels through the spatially cooperative regulation of CO generation and C C coupling pathways. Download: Download high-res image (321KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Xiaofang Ma,Yuxin Han,Xiaxia Liu,Yan Sun,LuXia Guo,Yang Gao,Yuanyuan Tian,He Xiao
RuNi nanoclusters confined in hollow mesoporous carbon are synthesized by a template-impregnation method. • RuNi/MCS-3 delivers superior alkaline HER performance comparable to commercial Pt/C. • Formed Ru−O−Ni bridge accelerates water dissociation and optimizes H* adsorption. • Pore confinement and electronic synergy offer a strategy for advanced HER electrocatalysts. Developing efficient and stable bimetallic electrocatalysts for the hydrogen evolution reaction (HER) in alkaline media is crucial for sustainable water splitting. However, this field still faces substantial challenges. Herein, a series of hollow mesoporous carbon-confined RuNi bimetallic nanocluster catalysts (RuNi/MCS-x) were synthesized via a facile combination of the template method and impregnation strategy. Their electrocatalytic HER performance was systematically evaluated in 1 M KOH solution. Notably, the MCS-3 material, prepared at a TPOS/TEOS volume ratio of 1:1, exhibits an optimal porous structure with a large pore size of 5.64 nm and a high specific surface area of 631.34 m 2 g −1 . The interconnected porous structure, linking the internal hollow cavities to the outer surface, provides sufficient transport channels for electrolyte penetration and hydrogen release. Benefiting from these structural advantages, the RuNi/MCS-3 catalyst delivers excellent alkaline HER performance. It requires only an overpotential of 15.6 mV to achieve a current density of 10 mA cm −2 in 1 M KOH electrolyte and displays a high mass activity of 651.4 mA mg Ru −1 at an overpotential of −50 mV. In addition, RuNi/MCS-3 achieves a Faradaic efficiency (FE) close to 100%, and its turnover frequency (TOF) is comparable to that of commercial Pt/C catalysts. The superior catalytic activity originates from three synergistic factors. First, the unique Ru−O−Ni bridging structure creates abundant electron-rich oxygen sites to promote water dissociation, optimize H* adsorption, and accelerate hydrogen desorption kinetics. Second, the pore confinement of hollow mesoporous carbon facilitates uniform dispersion of RuNi nanoclusters and full exposure of active sites. Third, the Ru−O−Ni bridge facilitates electron transfer and lowers the kinetic barrier of the alkaline HER, thereby substantially boosting the overall water-splitting efficiency. This work presents a feasible innovative strategy to rationally design and fabricate high-efficiency bimetallic carbon electrocatalysts toward high-performance HER. Download: Download high-res image (142KB) Download: Download full-size image The mesoporous carbon-confined RuNi bimetallic nanoclusters (RuNi/MCS-3) construct interfacial Ru–O–Ni bridges, which induce electron redistribution and trigger hydrogen spillover to optimize hydrogen adsorption/desorption kinetics. Benefiting from the interfacial synergistic effect, RuNi/MCS-3 exhibits substantially enhanced electrocatalytic hydrogen evolution activity compared with monometallic Ru/MCS-3.
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Advanced Science
·
2026
·
IF 14.1
Duoli Xie,Jie Huang,Chunhao Cao,Zhenchao Tang,Xingchen Li,Jianmin Guo,Xinxin Chen,Fang Wang,Dongyi He,Jie Li,Yu Du,Bing He,Jianhua Yao,Aiping Lu,Chao Liang
Rheumatoid arthritis (RA) progression is driven by the pathogenic transformation of stromal fibroblast‐like synoviocytes (FLSs). Using artificial intelligence‐guided analysis of a synovial single‐cell transcriptomic dataset, we identify O‐GlcNAc transferase (OGT) as a key regulator enriched in RA‐FLSs. Gain‐ and loss‐of‐function studies demonstrate that OGT is necessary to drive aggressive FLS phenotypes and exacerbate experimental arthritis. Mechanistically, OGT‐mediated O‐GlcNAcylation stabilizes SAP130, promoting histone deacetylation at the BTG2 promoter. This facilitates the deposition of repressive histone methylation marks, leading to BTG2 epigenetic silencing and ultimately fueling FLS aggression. To translate this mechanistic insight, we develop an FLS‐targeted proteolysis‐targeting chimera (PROTAC) by conjugating the OGT inhibitor OSMI‐1 to the AS1411 aptamer, which selectively binds surface nucleolin (NCL) overexpressed on pathogenic FLSs and, upon internalization, employs NCL as a molecular bridge to recruit the E3 ligase MDM2 for cell‐selective OGT degradation. This PROTAC suppresses FLS pathogenicity, attenuates arthritis in mice, and demonstrates additive therapeutic benefit when combined with the TNF‐α inhibitor etanercept. Collectively, our work establishes a translational paradigm that progresses from AI‐driven target discovery and mechanistic elucidation to the rational design of a cell‐type‐specific degradation therapy, offering a strategy to overcome the stromal‐driven therapeutic barrier in RA. AI‑guided single‑cell transcriptomics identifies OGT as a key regulator enriched in rheumatoid arthritis fibroblast‑like synoviocytes (RA‐FLSs). Inflammatory stimuli activate the OGT–SAP130 axis, which modulates the H3K27ac/H3K27me3 balance and epigenetically silences BTG2, promoting aggressive transformation of RA‑FLSs. A targeted PROTAC is developed to selectively degrade OGT in pathogenic FLSs, suppressing their aggressive phenotypes for RA therapy.
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JOURNAL OF MOLECULAR STRUCTURE
·
2026
·
IF 4.9
Di-Ming Chen,Yi-Han Rong,Xue-Jing Zhang,Shao-Ming Fang
A novel ultramicroporous Co-MOF has been constructed using a mixed N/O-bifunctional ligand strategy. • It exhibits preferential C 2 H 6 adsorption over C 2 H 4 at 298 K, with a C 2 H 6 uptake of 3.9 mmol/g at 1 bar. • The IAST selectivity for a C 2 H 6 /C 2 H 4 (10/90) mixture reaches 2.0 at 1 bar, and the separation potential is 1.1 mmol/g. • GCMC simulations and DFT calculations reveal that multiple C–H···O and C–H···π interactions contribute to a higher binding energy for C 2 H 6 (−12.22 kcal/mol) than for C 2 H 4 . The separation of ethane (C 2 H 6 ) from ethylene (C 2 H 4 ) is a crucial but energy-intensive process in the petrochemical industry. Developing adsorbents that preferentially capture C 2 H 6 over C 2 H 4 (inverse selectivity) enables one-step production of high-purity C₂H₄. Herein, we report a novel ultramicroporous cobalt-based metal–organic framework, 1 , constructed from a mixed N/O-bifunctional ligand strategy using 4-(4-carboxyphenyl)-1,2,4-triazole (HCPT) and isonicotinic acid (HINA). Single-crystal X-ray diffraction reveals that 1 features one-dimensional rhombic channels with pore dimensions of 4.48–5.81 Å, fully coordinated Co(II) centers, and pore surfaces decorated with aromatic rings and uncoordinated O atoms. The activated framework ( 1a ) exhibits a Brunauer–Emmett–Teller surface area of 517 m²/g and shows preferential C 2 H 6 adsorption over C 2 H 4 at 298 K, with C 2 H 6 uptake of 3.9 mmol/g at 1 bar. Ideal adsorbed solution theory selectivity for a C 2 H 6 /C 2 H 4 (10/90) mixture reaches 1.81 at 298 K and 1 bar, and the separation potential is 1.1 mmol/g. Grand canonical Monte Carlo simulations and density functional theory calculations reveal that C 2 H 6 forms multiple C–H···O and C–H···π interactions with the framework, resulting in a higher binding energy (−12.22 kcal/mol) than C 2 H 4 (−10.61 kcal/mol). This work demonstrates that the mixed N/O-donor ligand strategy is effective for designing inverse-selective MOFs for energy-efficient ethylene purification. A novel ultramicroporous Co-MOF was constructed using a mixed N/O-bifunctional ligand strategy (HCPT and HINA). The activated framework features one-dimensional rhombic channels (4.48–5.81 Å), fully coordinated Co(II) centers, and pore surfaces decorated with aromatic rings and uncoordinated O atoms. It exhibits preferential C₂H₆ adsorption over C₂H₄ at 298 K, with a C₂H₆ uptake of 3.9 mmol/g at 1 bar. The IAST selectivity for a C 2 H 6 /C 2 H 4 (10/90) mixture reaches 2.0 at 1 bar, and the separation potential is 1.1 mmol/g. Grand canonical Monte Carlo simulations and density functional theory calculations reveal that C 2 H 6 forms multiple C–H···O and C–H···π interactions with the framework, resulting in a higher binding energy (−12.22 kcal/mol) than C 2 H 4 (−10.61 kcal/mol). This work demonstrates that the mixed N/O-donor ligand strategy is effective for designing inverse-selective MOFs for one-step ethylene purification. Download: Download high-res image (319KB) Download: Download full-size image
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Xing-hong Pan,Renagul Abdurahman,Xu-yang Guo,Rui-hong Xu,Tao Li,Ming Guan,Xue-Bo Yin
For the first time, the MnO 2 @MgGa 2 O 4 composite material was made and synthesized. • Using MgGa 2 O 4 phosphorescence and MnO 2 peroxidase activity, aniline and o-toluidine can be detected simultaneously. • On-site aniline and o-toluidine testing with a mobile analysis tool on a smartphone. • The wearable patch sensor makes it easy to detect aniline and o-toluidine. Aniline and o-toluidine are crucial biomarkers for lung cancer, so their detection becomes significant for healthcare. Here we developed a stable, accurate, and sensitive wearable nanozyme patch based on MnO 2 @persistent luminescent nanoparticles (MnO 2 @PLNPs) for the detection of aniline and o-toluidine. MgGa 2 O 4 :0.1%Zn 2+ (MZGO) with the emission at 710 nm were first prepared and then loaded MnO 2 nanozyme as MnO 2 @PLNPs. The composite was embedded in polyvinyl alcohol (PVA) matrix to obtain the wearable nanozyme patch. MnO 2 exhibit broad band absorption in 300–800 nm for quenching the red phosphorescence of PLNPs. Upon the introduction of aniline and o-toluidine, MnO 2 nanozyme reacts with both analytes and degrades as Mn 2+ . Thus, the long-afterglow emission of PLNPs is recovered and this dual change enables detection of aniline and o-toluidine with a detection limit of 0.9 mmol with the phosphorescence at 710 nm and color change. Additionally, analyzing the RGB values of the reaction using a smartphone allows in-site determination of aniline and o-toluidine for early alert of lung cancer. Download: Download high-res image (117KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Zhuoran Song,Daohu Sheng,Siyao Cheng,Mengmeng Zhang,Aming Xie
The development of two-dimensional (2D) metal composite materials for electromagnetic wave (EMW) absorption is hindered by complex fabrication processes, high raw material costs, and insufficient absorption performance. We ingeniously integrate a multi-metal doping strategy with the oxygen-rich two-dimensional structure of p(C₃O₂)ₓ to successfully construct a defect-rich two-dimensional metal composite microwave absorber. Spectroscopic analysis reveals that multi-metal doping and oxygen release during pyrolysis generate abundant heterogeneous interfaces (oxides/alloys) and induce pronounced electron delocalization, promoting lattice distortions and defect formation. This synergistic effect significantly enhances both local dipole and interfacial polarization, boosting dielectric response. Consequently, the optimized OC-FeMnCuCo sample achieves exceptional EMW absorption with a minimum reflection loss (RL min ) of –55.0 dB and a broad effective absorbing bandwidth (EAB) of 6.8 GHz at an ultra-thin thickness of 1.9 mm. CST simulations further confirm its practical applicability. This work provides a simple, cost-effective strategy for designing advanced 2D absorbers.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Huizhong Ma,Yulong Wang,Mengling Hong,Hongfei Yin,Honglei Yuan
A novel Co SA-N,O-CQDs/g-C 3 N 4 (CoCCN) single-atom nano-island is synthesized for PMS activation. • 1 O 2 is identified as the dominant reactive species responsible for pollutant degradation. • DFT calculations elucidated that the N,O-CQD optimize charge transfer, reducing the energy barrier for 1 O 2 generation. The persistent contamination of aquatic ecosystems by antibiotic pollutants such as tetracycline hydrochloride (TCH) necessitates advanced oxidation processes (AOPs) for effective remediation. Peroxymonosulfate (PMS)-based AOPs offer high oxidation potential but face challenges in catalyst design, such as the conflict between catalytic activity and durability, as well as metal leaching. Herein, we developed a novel single-atom nano-island (SANI) catalyst composed of cobalt single atoms anchored on N,O co-doped carbon quantum dots (N,O-CQDs) nano-islands supported on g-C 3 N 4 , denoted as CoCCN. This configuration utilizes robust interactions between metal and support to simultaneously boost durability and facilitate PMS activation. The CoCCN catalyst achieved 98.3% TCH degradation within 40 min, with a kinetic constant (k obs = 0.0873 min −1 ) 2.66-fold higher than that of CoCN/PMS and 15.9-fold higher than CN/PMS. Mechanistic exploration uncovered that singlet oxygen ( 1 O 2 ) is the dominant reactive species responsible for pollutant degradation. Density functional theory (DFT) calculations further elucidated that the N,O-CQD nano-islands optimize charge transfer, reducing the energy barrier for 1 O 2 generation. The catalyst maintained 94.1% efficiency over ten cycles with minimal cobalt leaching, highlighting its robustness across a pH range of 3–10. This work provides a synergistic strategy to overcome activity-stability conflicts in single-atom catalysts for environmental applications. Download: Download high-res image (162KB) Download: Download full-size image
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Luo Jiawei,Liu Yuhang,Zhang Jingchao,Liu Zhedong,Guo Zhaoxin,Qian Kunyan,Li Zekun,Huang Pengfei,Wang Chunying,Zeng Jianrong,Liu Rui,Chen Yanan,Ding Jia,Hu Wenbin
Polyanionic positive electrodes with XO 4 (X = P, S, Si etc.) tetrahedra exhibit beneficial properties, making them crucial for energy storage systems. However, strong covalent X-O bonds cause electron localization, reducing intrinsic electronic conductivity and limiting rate performance. Here we show a strategy to directional design the covalency of X-O bonds for enhanced intrinsic electronic conductivity of polyanionic positive electrodes. We developed a non-equilibrium fast calcination technique to synthesize polyanionic positive electrodes inheriting weak covalent (WC) X-O bond characteristics from screened precursor. In as-synthesized NASICON-Na 3 V 2 O 1.6 (PO 4 ) 2 F 1.4 as proof-of-concept positive electrode, the WC P-O bonds effectively activate electron delocalization, thereby increasing electrons transport capability along V-O-P-O-V pathway. The intrinsic electronic conductivity of optimised material achieves 3.57 times enhancement, leading to 3.70 times and 3.86 times improvement in specific capacity and specific energy at 50 C. Meanwhile, the optimised material exhibits capacity retention of 85.9% after 3000 cycles at 1 C. This study potentially opens up a broad space for improving the intrinsic conductivity of polyanionic materials (such as phosphates, sulfates, silicates, etc.), with the potential to promote the development of next-generation high-power positive electrode.
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