CERAMICS INTERNATIONAL
·
2026
·
IF 6
Runduo Teng,Changhao Feng,Yanting Wang,Wenjun Tu,Tianyu Lan,Qiyuan Fu,Jingyu Long
N-butanol is widely used in fields such as chemical engineering and pharmaceutical synthesis; therefore, trace-level, highly sensitive detection of n-butanol is of great significance. In this study, an n-butanol gas sensor based on silver (Ag)-decorated yttrium ferrite (YFeO 3 ) nanotubes was fabricated using the electrospinning followed by the impregnation method. Compared with the pure YFeO 3 , the Ag-decorated YFeO 3 nanotubes exhibited an enhanced response of 162.06 toward 10 ppm n-butanol. This remarkable gas-sensing performance is primarily attributed to the synergistic effects of the mixed-valence states of iron, abundant surface oxygen vacancies, and the Ag spillover effect. Moreover, it exhibits excellent long-term stability and a detection limit as low as 76.5 ppb. These results indicate that Ag-decorated YFeO 3 nanotubes hold significant potential for trace n-butanol detection.
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高影响因子
Nature Communications
·
2026
·Vol. 17
·期 1
·5836
·
IF 18.1
Tursumamat Nafisa,Liu Qiannan,Lu Jihong,Guo Shuhong,Du Shuangshuang,Liu Shengyang,Wu Shuye,Li Heming,Wu Peng,Li Bin,Wei Juan
High-sensitivity glycomic analysis is essential for advancing both basic and translational biomedical research, yet remains methodologically challenging for limited-quantity samples, primarily due to complex workflows and reliance on specialized instrumentation. Here, we introduce solution-enhanced glycan reduction and permethylation (seGRAP), a streamlined, accessible, and high-sensitive method that enables glycan profiling from sub-nanogram protein inputs and picoliter-scale human plasma using widely available mass spectrometry (MS) platforms. seGRAP-MS demonstrates consistently robust and reproducible glycomic performance and enables comprehensive N -glycome characterization of human oocytes at single-cell resolution. Our single-oocyte analysis uncovers a highly conserved N -glycome across both individuals and developmental stages, revealing a previously uncharacterized layer of molecular stability in human reproduction. By significantly lowering technical and logistical barriers, seGRAP-MS redefines the benchmark for high-sensitive glycomics, expanding accessibility and empowering broader applications in fundamental biology, clinical research, and precision medicine.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Jingyi Zhang,Yuwei Li,Zongyao Guo,Yuxin He,Ying Huang,Xinquan Shen,Dan Wu
Urea tailors Co 3 O 4 nanoflakes, Co–N coordination, and interfacial disorder. • Co 3 O 4 /NF-5 reaches 1000 mA cm −2 at 1.39 V with >84.1% formate FE. • CoOOH-mediated electrochemical-chemical turnover governs glycerol oxidation. • A GOR||HER MEA sustains 200 mA cm −2 at 1.9 V for 216 h. • Techno-economic analysis estimates a net profit of $3085.7 per ton of glycerol. Electrochemical glycerol oxidation offers a sustainable pathway for valorizing biodiesel-derived glycerol while lowering the energy demand of hydrogen production. However, Co-based catalysts are often limited by inefficient coupling between the electrochemical generation and chemical consumption of oxidized Co species. Herein, a urea-mediated strategy is developed to simultaneously tailor the morphology, surface electronic structure, and local structural order of Co 3 O 4 electrodes. Urea directs the formation of vertically aligned nanoflakes, introduces Co–N coordination, increases the surface Co 3+ /Co 2+ ratio, and generates defect-rich crystalline-amorphous interfacial regions. The optimized Co 3 O 4 /NF-5 electrode delivers 1000 mA cm −2 at 1.39 ± 0.02 V, maintains a formate Faradaic efficiency above 84.1 ± 1.4% over 1.3–1.8 V, and exhibits only 3.1% activity decay after 5000 cycles. Electrochemical kinetic analysis, in situ Raman spectroscopy, and potential-step measurements reveal efficient electrochemical–chemical turnover mediated predominantly by CoOOH species, with transient Co 4+ -associated species potentially contributing at elevated potentials. Density functional theory calculations further indicate that N incorporation modulates Co 3 d states and strengthens reactant adsorption. An integrated electrolyzer operates continuously for 216 h, demonstrating device-level durability and favorable preliminary techno-economic prospects. These findings establish coupled morphological and electronic regulation as an effective strategy for promoting electrochemical–chemical turnover in glycerol electrooxidation. Download: Download high-res image (154KB) Download: Download full-size image
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高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2026
·Vol. 28
·期 6
·165
·
IF 3.5
Yang Menghui,Gao Zhen,Zhan Haoyu,Bi Mengqi,Huang Naibao,Zhang Junjie,Gan Ziqi,Wang Hao
Developing highly active, durable, and cost-effective oxygen reduction reaction (ORR) catalysts is crucial for fuel cell commercialization through the use of non-precious metal alternatives to platinum. In this study, the tunable dodecahedral Fe-N-C catalysts were synthesized through controlled pyrolysis of Fe-doped zeolite imidazolate framework-8 (ZIF-8) precursors. The optimized 5% Fe@NC-8 catalyst demonstrates excellent ORR performance with an onset potential of 0.92 V vs. RHE, a half-wave potential (E 1/2 ) of 0.83 V vs. RHE, and a limiting diffusion current density (j d ) of 6.06 mA cm −2 , surpassing commercial 20% Pt/C catalysts (onset potential 0.89 V vs. RHE; E 1/2 0.81 V vs. RHE; j d 4.27 mA cm −2 ). It also shows strong durability, retaining 86.16% of its current after prolonged polarization (@0.80 V vs. RHE for 10,000 s) and minimal negative shift in half-wave potential after extensive cycling(@200 mV s −1 for 5000 CV cycles). The enhanced catalytic performance is attributed to (i) possessing a high specific surface area (319 m 2 g −1 ) and favorable porosity to maximize active site accessibility; (ii) having abundant active sites of Fe-N x , graphitic N, and pyridinic N as active catalytic centers; and (iii) forming N-doped carbon matrices to provide a conductive framework. These advantages boost the density of accessible active sites and thus remarkably improve the ORR catalytic activity.
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高影响因子
ACS Applied Nano Materials
·
2026
·
IF 5.8
Kenan Shen,Yang Qin,Heyong Zhu,Zheming Wang,Zhenshun Mo,Yanan Wang,Zhichuan Zheng,Kai Huang,Xiaotong Zhao,Peng Du
The precise construction of bimetallic sites and the regulation of interfacial environments are crucial for accelerating the sluggish kinetics of alkaline hydrogen evolution. Transient thermochemical processing provides a unique pathway to modulate heterogeneous coordination and metal–support interaction. Herein, we report a pulse Joule-heating (PJH) strategy to activate mixed-valence PtRu nanoclusters on nitrogen-doped mesoporous carbon. The resulting PtRu/NMC-JH exhibits exceptional hydrogen evolution reaction (HER) activity in 1.0 M KOH, delivering an overpotential of only 50.4 mV to reach 100 mA cm–2 and an ultralow Tafel slope of 30.8 mV dec–1, with superior stability exceeding 100 h. Furthermore, the alkaline water electrolysis (AWE) device integrated with this cathode delivers a current density of 0.5 A cm–2 at a cell voltage of 1.59 V with robust stability over 800 h. The remarkable performance enhancement is attributed to the synergy between the subnanometer cluster size and PJH-strengthened electronic coupling, which facilitates efficient charge transfer and accelerates the alkaline HER kinetics. This work highlights the potential of ultrafast thermal activation for designing small-sized clusters and tailoring interfacial chemistry for high-performance energy conversion.
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高影响因子
JOURNAL OF SOLUTION CHEMISTRY
·
2025
·Vol. 55
·期 3
·455-480
·
IF 1.3
Wang Yuting,Wang Min,Fu Xupeng,Wang Wenxue,Chai Liming,Wang Enna,Wei Xionghui,Wu Zhaojun,Zhang Jianbin
The impact of water on the physicochemical properties and CO 2 absorption capability of the N -methyldiethanolamine (MDEA) + polyethylene glycol 300 (PEG300) solution was explored. The molar ratio of PEG300 to MDEA was fixed at 0.3734: 0.6266, and the density and viscosity of the aqueous solutions were measured at P = 100.5 kPa and T = (298.15–318.15) K. Based on these measurements, the excess properties of the system were calculated. Meanwhile, spectral analysis confirmed the formation of intermolecular hydrogen bonds among MDEA, PEG300, and H₂O. Building on these findings, the influence of water content on the cyclic CO 2 absorption performance of the H₂O + (PEG300 + MDEA) system was systematically investigated, with particular emphasis on the regeneration behavior at 15 wt% MDEA concentration. Furthermore, the underlying mechanism of the cyclic CO₂ absorption process was elucidated using multiple analytical techniques. These insights provide certain theoretical support for the industrial application of PEG300 + MDEA aqueous systems in CO 2 capture.
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RARE METALS
·
2026
·Vol. 45
·期 8
·e70443
·
IF 12.1
Weinan Yao,Wenzhuo Sun,Mengjiao Wu,Nana Li,Wenting Li,Xiaotian Guo,Bin He,Huan Pang
en This link goes to a English section zh This link goes to a Chinese section A facile coprecipitation-pyrolysis strategy was employed to fabricate Cu/Co nanoparticles (NPs) embedded in nitrogen-doped carbon matrices (Cu/Co@N-C) through the carbonization of CuCo-MOF precursors. Moreover, monometallic counterparts of Cu@N-C and Co@N-C were also prepared via carbonization of bimetallic CuZn-MOF and CoZn-MOF, respectively. Electrochemical tests confirm that Cu acts as the key active center for nitrite oxidation. By adjusting the Cu/Co molar ratios, a series of cubic Cu/Co@N-C composites with tunable sizes of 200–500 nm were achieved. The synergistic interaction between metallic Cu/Co NPs and the conductive N-C framework enhances catalytic activity and reduces overpotential compared to the monometallic Cu counterpart. The optimized Cu/Co@N-C/glass carbon electrode (GCE) sensor delivered a superior sensitivity as high as 0.461 μA μM −1 cm −2 and wide detection range of 2–10000 μM. The Cu/Co@N-C/GCE sensor also demonstrated superior selectivity, long-term stability of 92.5% retention after 21 days, and reproducibility. This work establishes a versatile approach for engineering various MOF-based catalysts, demonstrating promising potential for applications in environmental monitoring and food safety analysis. 摘要 en This link goes to a English section zh This link goes to a Chinese section 采用一种简便的共沉淀–热解策略 , 以 CuCo-MOF 前驱体为碳源进行碳化 , 成功制备了氮掺杂碳基质负载的 CuCo 双金属纳米颗粒复合材料(Cu/Co@N-C)。此外 , 还分别基于双金属CuZn- MOF和CoZn-MOF碳化制备了Cu@N-C和Co@N-C。电化学测试表明Cu是亚硝酸盐氧化的关键活性中心。通过调控 Cu/Co 摩尔比 , 获得了粒径可调、尺寸范围为 200–500 nm 的立方体 Cu/Co@N-C 复合材料。与单金属Cu@N-C相比 , 金属Cu/Co NPs与导电N-C框架之间的协同作用增强了催化活性并降低了过电位。优化后的 Cu/Co@N-C/玻碳电极(GCE) 传感器表现出优异的电化学传感性能 , 其灵敏度高达 0.461 μA μM −1 cm −2 , 检测范围宽达 2–10000 μM。Cu/Co@N-C/GCE 传感器还展现出优异的选择性、良好的重复性以及长期稳定性 , 在存放21天后仍可保持 92.5% 的电流响应。该工作为构筑各种MOF 基催化材料提供了一种通用策略 , 显示出其在环境监测与食品安全分析领域的广阔应用前景。
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Wenfang Cui,Yongmei Sun,KeYu Zhang,Chengcheng Shi,Peng Fu,Mei Ma
The development of high-performance TiP 2 O 7 anode materials has been fundamentally limited by their intrinsically poor electronic conductivity and slow Li + diffusion kinetics. Herein, we report an innovative ionic liquid-mediated strategy that simultaneously engineers oxygen vacancies and nitrogen-doped carbon in hierarchical TiP 2 O 7 architectures. Through pyrolysis gas reduction, oxygen vacancies are introduced into the TiP 2 O 7 lattice, promoting the formation of C P bonds and defect energy levels while broadening the lithium ions transport channels. The concurrent formation of a nitrogen-doped carbon matrix, rich in pyridinic-N configurations, establishes a highly conductive network and optimizes electrode-electrolyte interfacial dynamics. The co-engineered material delivers exceptional rate capability (301.5 and 241.7 mA h g −1 at 5 and 10 A g −1 , respectively), doubling the capacity of the ionic liquid-free counterpart. First-principles calculations elucidate the underlying mechanisms: oxygen vacancies substantially reduce the Li + diffusion barrier by 29% (from 0.42 eV to 0.30 eV), while synergistic coupling with nitrogen-doped carbon creates a 0.73 eV in-gap state that effectively boosts charge transfer kinetics. This multiscale engineering strategy, which synergistically integrates atomic-scale defect control with mesoscopic interface optimization, establishes a generalizable design principle for next-generation high-rate electrode materials.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.6
Qian Wang,Rubo Fang,Heng Yuan,Xinyi Zhang,Guilong Hu,Qunfeng Zhang
To address the high consumption and cost of noble metal catalysts during the production of hexanitrohexaazaisowurtzitane (HNIW, CL-20), nitrogen-doped titanium dioxide (TN) was synthesized using urea as a nitrogen source. PdO/TN catalysts were then fabricated via a deposition–precipitation route and applied to the continuous hydrogenolysis debenzylation of hexabenzylhexaazaisowurtzitane (HBIW). Characterization by XRD, TEM, Raman, XPS, and H₂-TPR revealed that nitrogen incorporation effectively promoted the generation of surface oxygen vacancies and strengthened metal–support interactions, thereby enhancing catalyst stability. Moreover, the oxygen vacancy concentration could be tuned by adjusting calcination conditions. The PdO/TN-400-2 catalyst, prepared at 400 °C for 2 h, exhibited the highest catalytic activity, with an oxygen vacancy fraction of 19.64%. Further decreasing the calcination severity increased defect density but did not yield additional performance gains. These findings demonstrate that nitrogen doping can regulate surface defect chemistry and metal–support coupling, offering a viable strategy for the design of efficient catalysts for hexabenzylhexaazaisowurtzitane (HBIW) debenzylation.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121689
·
IF 7.5
Meiling Cai,Xiaojun Miao,Xiaoyan Wang,Xueyan Xue,Hui Zhu,Liping Yang,Xinqian Zhang,Jiao Yin
Heterogeneous catalytic ozonation (HCO) is a promising technology for water purification but is often restricted by low ozone utilization and poor gas-liquid-solid mass transfer. In this work, a dual-enhanced catalytic ozonation system was developed by coupling a nitrogen-doped cotton-straw-derived biochar supported mixed-valent iron catalyst (FeO x -N-BC) with ozone micro-nanobubbles (O 3 -MNBs). The catalyst was synthesized via impregnation and two-step pyrolysis, enabling uniform dispersion of Fe active sites and electronic structure modulation through nitrogen doping. The O 3 -MNBs improved ozone dissolution and transfer efficiency at the interface. Under optimal conditions, the FeO x –N–BC/O 3 –MNBs system achieved an SMX removal efficiency of 83.3 % and a mineralization rate of 37.9 %, with a pseudo-first-order kinetic constant of 0.30 min −1 , significantly outperforming single ozonation. EPR and quenching experiments confirmed a radical-nonradical dual degradation pathway dominated by singlet oxygen ( 1 O 2 , 25.13 %). XPS revealed that C, N, and Fe species underwent synergistic valence state evolution, sustaining ROS generation and catalytic stability. The system maintained 51.1 % removal efficiency after five cycles with negligible anion interference. This study demonstrates a low-cost, efficient, and stable catalytic ozonation strategy, providing a practical route for antibiotic wastewater treatment and valorization of agricultural residues.
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ACS Applied Materials & Interfaces
·
2026
·
IF 8.2
Yuzhu Li,Tian Liang,Yuanfei Gao,Dan Zhang,Xueke Zhang,Jiahao Zhang,Bingke Li
The development of advanced carbon anodes is pivotal for enabling high-performance sodium-ion batteries (SIBs). However, their reaction dynamics and cycling stability remain a formidable challenge. In this work, we report a novel three-dimensional (3D) carbon framework anode (S-CNS@CNF), featuring engineered carbon nanosheet arrays coupled with a sulfur and nitrogen codoping strategy. Specifically, nickel hydroxide is employed as a structural inducer to facilitate the vertical anchoring of carbon nanosheet arrays onto porous carbon nanofibers, thereby constructing an interconnected 3D porous architecture. This hierarchical structure affords a wealth of active sites for Na+ adsorption while simultaneously facilitating highly efficient pathways for electron transport. Furthermore, N, S codoping introduces a high density of defect sites and enlarges the interlayer spacing of the carbon nanosheets. Experimental findings combined with theoretical calculations reveal that the incorporation of sulfur into the carbon further enhances the Na+ storage kinetics and increases Na+ adsorption energy. Benefiting from the synergistic effects between interconnected 3D porous architectures and N, S doping, the as-prepared anode delivers a high reversible capacity of 399.5 mAh g–1 at 0.1 A g–1 and outstanding rate capability, retaining 146.7 mAh g–1 at 20 A g–1. When Na3V2(PO4)3 (NVP) is employed as the cathode, the NVP//S-CNS@CNF full cell outputs a specific capacity of 117.6 mAh g–1 at 2 A g–1.
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PubMed
高影响因子
ACS ES&T Engineering
·
2026
·
IF 6.7
Xiaorong Gan,Weiwei Wu,Ran An,Kangheng Huang,Laiba Khalid,Jianlin Zhang,Sunjia Xu,Yanjun Dang,Leilei Ye,Mengzhen Sun,Wanxi Xie,Ge Song,Jiayue Yu,Changhao Li,Muhan Shi,Ting Chen,Yanhui Ao
Nitrogen-containing organic compounds are widely used in sensing, membrane separation, and adsorption for heavy metal ion detection and removal, yet their selective recognition mechanisms remain unclear. Here, we systematically investigated the interactions between representative nitrogen-containing compounds and various heavy metal ions. The results reveal that Cu2+ preferentially coordinates with nitrogen atoms rather than oxygen or sulfur, independent of external electric fields. Supervised machine learning (accuracy = 0.9449) identified three key descriptors including LUMO energy, hardness, and softness, governing selectivity based on the hard–soft acid–base principle and molecular orbital theory. Guided by these insights, an electrochemical probe derived from oxidized p-aminothiophenol was developed, exhibiting high Cu2+ selectivity with a linear detection range of 1 nM–100 μM and sensitivity of 28.157 μA/(nM·cm2), confirming the proposed mechanism.
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危险品化学品经营许可证（带存储）