Nature Communications
·
2026
·
IF 18.1
Zong Peipei,Zhao Yaqi,Shi Xiaomeng,Zhang Xun,Zhang Yiming,Sun Xiaolei,Qin Xie,Jiao Lei,Lu Xiaoquan
Pentanol represents an attractive clean-burning biofuel, yet fuel commonly contain multiple structurally similar pentanol isomers that perturb the flash-point and impair combustion performance, necessitating the differentiated identification of pentanol isomers. Herein, we propose an electrochemiluminescence (ECL) shunt strategy that redirects reaction intermediates in a Bi-based bifunctional system, thereby guiding the selective cathodic or anodic ECL emission of luminol for identification of pentanol isomers. In-situ characterization and theoretical calculations reveal that Bi single atoms selectively generate hydroxyl radicals to induce cathodic ECL signal of luminol. In contrast, Bi nanoparticles generate superoxide radicals alongside the electrooxidation of luminol, which triggers an anodic ECL signal. According to the disparate radical-scavenging behaviors of pentanol isomers, a dual-channel ECL sensor array is fabricated. We demonstrate accurate classification of five pentanol isomers by combining principal component analysis clustering with a random-forest supervised-learning model.
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高影响因子
Catalysts
·
2026
·Vol. 16
·期 10
·868
·
IF 4.5
Yanliang Yang,Huani Xu,Ying Duan,Yiyi Cheng,Yunmeng Wang,Dong Sui,Xuechuan Lv,Ming Li,Tianliang Lu
Ammonia borane (AB) is an ideal chemical hydrogen storage material owing to its high gravimetric and volumetric hydrogen capacities. However, the practical application through hydrolysis calls for catalysts that are efficient, stable, and low-cost. In this work, a CoxC/TiO2catalyst was synthesized by pyrolyzing a Co-MOF precursor supported on TiO2. The TiO2effectively dispersed the precursor and suppressed particle agglomeration, yielding highly dispersed Co nanoparticles that were uniformly embedded on the support within the carbon matrix after pyrolysis. The catalyst achieved a specific reaction rate of 10.7 molH2·molCo−1·min−1, which was approximately 9.7 times higher than that of the support-free CoC (specific reaction rate = 1.1 molH2·molCo−1·min−1), and significantly outperformed counterparts supported on SiO2or Al2O3. The catalyst also exhibited a low activation energy of 33.18 kJ·mol−1and retained about 60% of its initial activity after five cycles. XRD, SEM, and TEM characterizations confirmed the high dispersion of Co species and the morphological evolution induced by TiO2. The enhanced performance was attributed to the synergistic effect between Co active sites and the reducible TiO2via hydrogen spillover. Control experiments using Ni-based catalysts further verified that only reducible supports such as TiO2and ZrO2substantially enhanced activity, confirming the generality of the hydrogen spillover mechanism. This study provided a facile and effective strategy for developing high-performance, non-noble metal catalysts for chemical hydrogen storage.
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ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Wang Hongsheng,Zeng Yue,Lyu Shuai,Xiao Ping,Hadizadeh Mohammad Hassan,Wang Shan,Zhu Junjiang
Cu−Co bimetallic catalysts have demonstrated considerable potential for CO 2 hydrogenation to C 2 + alcohols. However, their practical application remains constrained by excessive CH 4 formation arising from the uncontrolled reduction of Co species under reaction conditions. Herein, we report a semi-encapsulated catalyst architecture constructed through a lattice-mismatching strategy. The lattice mismatch between hexagonal CoO (h-CoO) and ZnO is only 0.18%, whereas that between Cu 2 O and ZnO reaches 31.4%. When ZnO serves as the seed crystal, Cu 2 O preferentially nucleates and grows into nanoparticles on the ZnO surface, while h-CoO undergoes epitaxial growth on the exposed ZnO regions, forming a semi-encapsulated configuration in which Cu 2 O nanoparticles are partially confined by an h-CoO overlayer. The strong lattice matching between h-CoO and ZnO stabilizes Co species in an oxidized state under reaction conditions, thereby suppressing the formation of metallic Co and CH 4 production. Meanwhile, the confinement effect imposed by the h-CoO overlayer effectively restricts Cu migration, preserving the Cu−Co interfacial sites that are critical for C−C coupling. As a result, the optimized catalyst achieves a C 2 + alcohol selectivity of 63.7% at 300 ° C, with an ethanol selectivity of 30.0%, and exhibits no noticeable deactivation over 200 h of continuous operation. This work demonstrates that lattice-matching-directed interfacial engineering represents an effective strategy for simultaneously regulating active-phase stability and metal dispersion, offering new insights into the rational design of catalysts for selective CO 2 hydrogenation to C 2 + alcohols.
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Nature Communications
·
2026
·
IF 18.1
Zhang Chi,Tang Wenxiang,Li Xiangyang,Zhang Chi,Zou Zongpeng,Zhu Yifeng,Tang Shengwei,Chen Yunfa,Gao Pu-Xian
Design of active but stable interfaces in supported metal catalysts represents an emerging research theme lately, given its critical importance for tailoring and enabling selectivity and efficiency of heterogeneous reactions. Herein, we report a generic sunlight-driven epitaxial growth strategy to engineer catalytically active interfacial perimeters defined by subnanometric Pt dispersed on TiO 2 nanoparticle supports. Such interfacial perimeters are populated with a unique type of Pt 4+ -O-Ti 3+ reactive sites, resulting in much more efficient and robust CO oxidation than most supported Pt catalysts reported so far. These subnanometric PtO x -TiO 2 interfacial structures are found to dynamically evolve during CO oxidation, adaptively optimizing their adsorption behaviors toward reactants and SO 2 . Combined with the activated interfacial lattice oxygen species via the electronic metal-support interaction effect, the Mars-van Krevelen pathway is activated at low temperature to oxidize CO at high conversion efficiency. The sunlight-driven synthetic strategy is successfully extended to other metal catalysts supported by metal oxide and perovskite materials, offering a new paradigm for designing adaptive catalysts toward a variety of heterogeneous catalytic reactions.
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PubMed
高影响因子
AAPS PHARMSCITECH
·
2026
·Vol. 27
·期 4
·198
·
IF 5.1
Zhou Ziling,Chen Xian,Liu Yuxin,Zheng Rongjiao,Huang Junxiang,Pan Xin,Wu Chuanbin,Jiang Junhuang
Besides improving drug solubility and stability, co-amorphous systems (COAMS) have recently been reported to enhance the pulmonary delivery efficiency of dry powder inhalation (DPI), offering a novel approach to the development of DPI. Conventional drug formulation development utilizes trial-and-error experiments, which require a laborious workload and resources. Moreover, the correlation of forming COAMS to enhanced pulmonary deposition remains underrepresented. Therefore, we proposed applying multiple machine learning (ML) models to the development of co-amorphous DPIs. In this study, we first constructed the database of COAMS through literature mining and then preprocessed the dataset with a molecular representation method. Subsequently, we successfully developed and evaluated the predictive performance of multiple ML models (i.e., logistic regression, random forests, XGBoost, LightGBM, and support vector machines) for forming a co-amorphous system. The five ML models' performance varied, yet all achieved satisfactory predictive accuracy (ACC) of around 0.80 in the testing subset. Specifically, LightGBM exhibited the highest ACC of 0.790 in cross-validation and 0.845 in the testing subset. In addition, SHapley Additive ex Planations (SHAP) analysis revealed that several molecular features (i.e., API_EState_VSA10, Co-former_BCUT2D_MRHI) are critical for models' prediction. More importantly, we conducted experimental validation by using salbutamol sulfate and indomethacin as model drugs to prepare co-amorphous DPIs based on the fine-tuned LightGBM model. The co-amorphous DPIs showed satisfactory aerodynamic performance with fine particle fractions of 41.87%—69.30%. In conclusion, we successfully demonstrated the feasibility of ML for guiding the formation of co-amorphous DPIs, further facilitating the development process in the future. Graphical
The alternative text for this image may have been generated using AI.
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2026
·Vol. 37
·期 13
·978
·
IF 3.2
Li Xiongbin,Zhou Yuqiao,Tang Xiu-Zhi,Zhang Hong,Li Hengfeng
The aerospace, military stealth, and 5G communication fields have raised new requirements for multifunctional materials. In this study, a rigid MWCNT/Co@C/rGO/PMI composite foam (MCGP) was prepared using a UV light-initiated in-situ copolymerization hot air foaming method. The sandwich structure of MOF-GO-MOF, after calcination, achieved a uniform dispersion of magnetic Co particles and formed rich hetero interfaces. The 0D Co@C, 1D MWCNT, and 2D rGO formed a multi-dimensional filler system, and the magnetic-electrical synergy and isotropy bubble structure jointly optimized the impedance matching, and multiple loss mechanisms enhanced the absorbing performance. The results showed that M20C20/PMI achieved a RL value of -68.26 dB at a frequency of 8.92 GHz and a thickness of 40mm, and the EAB covered the full frequency band of 2—18 GHz. The RCS value of M25C15/PMI reached a minimum of -45.82 dB·m 2 . Notably, by carefully adjusting the proportion of fillers, the five MCGP composite foams prepared in this study all had a minimum RL value of < -55 dB, basically meeting the requirements of each absorption frequency band. In addition, the MCGP composite foams are lightweight (28.30 kg/m 3 ), have high strength (0.50 MPa), heat insulation (0.02856 W/(m·K)), and infrared stealth characteristics, making them promising as a new generation of integrated structural–functional protective materials.
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高影响因子
JOURNAL OF POWER SOURCES
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2026
·
IF 8.4
Chen Chen,Zhuo Chen,Yue Chen,Jinkai Chen,Xiru Ren,Haiting Li
Bowl shaped carbon nanomaterials are attractive for supercapacitor applications due to their structural advantages and excellent electrochemical performance, as demonstrated by their specific capacitance and cycling stability in this study. This article presents the shape-controllable synthesis of N/S co-doped hollow single-layer and double-layer carbon nanobowls (HSCNs (Hollow Single-layer Carbon Nanobowls) and HDCNs (Hollow Double-layer Carbon Nanobowls), respectively) for supercapacitors via a facile, sustainable, and cost-effective one-pot hydrothermal carbonization method. The micromorphology, physical properties, and chemical composition of the HSCN and HDCN samples are analyzed. According to micromorphological analyses, both HSCN-8 and HDCN-8 samples have uniform sizes, with diameters and wall thicknesses of ∼400 nm and ∼50 nm, respectively. The formation mechanism of the double-layer structure of HDCNs is discussed. Furthermore, the performances of the supercapacitors employing activated HSCN-8 and HDCN-8 (PHSCN-8 and PHDCN-8) as electrode materials are compared, demonstrating that PHDCN-8 provides a higher specific capacitance (156.0 F g −1 ) at a current density of 1 A g −1 than that of PHSCN-8. These results indicate that PHDCN-8 has a superior electrochemical performance owing to its double-layer bowl-shaped structure and relatively higher N content. These novel electrode materials have great potential for supercapacitor application.
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高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
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2026
·
IF 12.2
Kangrui Zhao,Yinan Dong,Xueyun Wen,Xuejie Shen,Yiru Hu,Dongli Li,Yudong Ren,Ziyi Wang,Ali R. Jalili,Dorna Esrafilzadeh,Jieyi Zeng,Hao Li,Keyu Chu,Dongbin Wang,Yongping Huang,Jingkun Jiang,Zehui Li
Long-term exposure to formaldehyde (HCHO) in indoor environment poses a serious threat to human health. Despite recent advances, conventional electrochemical HCHO sensors face significant challenges in sensitivity, selectivity, and stability, primarily due to competitive adsorption of interfering species and strong binding of reaction intermediates on the catalyst surface. To address these limitations, we developed an ammonia-assisted bimetallic synergistic templating method to construct a Pt–Co bimetallic and nitrogen-doped carbon nanotube (Pt2.32Co–N10/CNT) electrocatalyst. Compared to commercial Pt/C, the Pt2.32Co–N10/CNT exhibits a 2.73-fold higher catalytic activity, a sensitivity of 458.62 μA·mmol/(L·cm2) (4.12 times that of Pt/C), and anti-interference performance. The CNT provides a one-dimensional and high-surface-area structure that accelerates electron transfer and promotes uniform dispersion of active sites, including Pt/Co nanoparticles and Pt/Co single atoms. Importantly, the nitrogen-rich environment forms strong coordinate bonds with Pt and Co, finely-modulating their electronic configurations to suppress methanol interference via selective adsorption. Additionally, nitrogen doping effectively weakens the CO adsorption energy, mitigating the CO-induced catalyst poisoning. With integration with screen-printed electrodes, the portable Pt2.32Co–N10/CNT sensor achieves a high sensitivity of ca. 2.38 nA/ppb and retains over 96% of its initial response after 7 days, alongside a 10-fold improvement in anti-interference ability in the alcohol-rich environment. This advancement holds transformative potential for next-generation electrochemical sensors with broad applications in environmental health, medical diagnostics, and food safety.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xuan Zhou,Ding Du,Shan Qiao,Xiao Yang,Ranqing Zhang,Yuanyuan Dai,Tiejun Lin,Yunlei An,Liangshu Zhong
The Fischer-Tropsch synthesis (FTS) performance of Co/TiO 2 supported catalysts is strongly influenced by the TiO 2 crystal phase. It was found that Co/r-TiO 2 (rutile) exhibited high FTS activity, while Co/a-TiO 2 (anatase) showed negligible activity due to facile reduction of a-TiO 2 , which induced TiO x migration over Co nanoparticles under H 2 to form a strong metal-support interaction (SMSI) layer. The formed TiO x layer would encapsulate Co active sites and suppress CO chemisorption with low activity. However, when a-TiO 2 support was pre-reduced in H 2 before Co loading, the resulting Co/a-TiO 2 (H 2 ) catalyst achieved a remarkable increase for CO conversion from 0% to 60.7%. Structural characterization confirmed that H 2 pretreatment generated abundant oxygen vacancies in a-TiO 2 (H 2 ), which effectively regulated the interaction between Co and TiO 2 support. As a result, the SMSI-induced encapsulation was inhibited with more exposed metallic Co active sites, which would enhance CO chemisorption and catalytic activity. This work presents an effective H 2 pretreatment strategy for tailoring SMSI-governed interfacial structure and optimizing the FTS performance of Co/TiO 2 catalysts.
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高影响因子
RSC Advances
·
2026
·Vol. 16
·期 14
·12524-12536
·
IF 6.1
Zhaopeng Sun,Yaling Wu,Yingying Chen,Zhibo Li,Sen Lei,Yongyong Cao,Lianwen Zhu,Xuebo Cao,Zheng Yan
Previous studies have often focused on optimizing electrocatalytic performance by altering the type of metal centers or the morphological structure of catalysts to modulate their electronic structures and active sites. However, the precise regulation of metal valence states to enhance catalytic performance—particularly for trifunctional electrocatalysis in the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER)—remains in the exploratory stage. In this study, crystalline Co–N6 materials with controllable valence states were carefully selected as precursors. Through carbonization, Co–N–C materials with similar carbon frameworks but distinct metal valence states (Co2+ and Co3+) were successfully prepared. Both experimental tests and theoretical calculations demonstrate the superior trifunctional electrocatalytic performance of Co2+–N–C. Density functional theory (DFT) calculations provide evidence for the more favorable intermediate adsorption energies and lower reaction energy barriers exhibited by Co2+–N–C. This performance advantage stems from the 3d7 electronic configuration of Co2+, which optimizes electron cloud density and strengthens Co–N bonding interactions. This work presents a new strategy for designing highly efficient electrocatalysts by elucidating the regulatory role of metal valence states.
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高影响因子
KEY ENGINEERING MATERIALS
·
2026
·
IF 0
Dale Vert Zimon G. Manansala,Jem Valerie D. Perez,Isaac Jerome C. Dela Cruz
This investigation reports the successful synthesis and characterization of a co-crystal composed of paracetamol (PCM) and metal sulfates of zinc and iron using an adapted antisolvent addition technique which leveraged the antagonistic solvent affinities of PCM and the metal sulfates. Ethanol and water acted as solvents for PCM and the metal sulfates, respectively, while simultaneously serving as antisolvents for the other constituent. Scanning Electron Microscopy (SEM) micrographs revealed crystals exhibiting a rod-like structure and a surface covered by flakes, which are both characteristic features of PCM and zinc sulfate, suggesting the formation of a new crystalline phase. This is further supported by the distinct powder x-ray diffraction pattern for the co-crystal when compared with that of the individual constituents. Analysis of Fourier Transform Infrared (FTIR) spectra suggests that the interacting functional groups which formed a new hydrogen bond network are the amide N-H and the water in the aquo complex formed by the metals in aqueous solutions. The findings highlight the simplicity of the crystallization technique and provide insights into the structural and mechanistic aspects of organic-inorganic co-crystals. This study contributes to the advancement of co-crystal engineering and lays the groundwork for exploring the pharmaceutical and functional applications of PCM-metal sulfate co-crystals.
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BIOMASS & BIOENERGY
·
2026
·
IF 7
Yanjun Hu,Chong Yang,Fan Yu,Qianqian Guo,Xingxuan Zhang,Wei Bao,Kitae Baek,Rufei Lu,Frederik Ronsse
Co-pyrolysis is an effective way to achieve high-value utilization of biomass and waste plastics. To overcome the limitations of asynchronous heat transfer in traditional co-pyrolysis processes, a ternary molten carbonate system (Li 2 CO 3 –Na 2 CO 3 –K 2 CO 3 ) was used as the reaction medium to study the effects of temperature (450–550 °C) and feedstock ratio (CS:PE = 3:1–1:3) on the co-pyrolysis products of corn stover (CS) and polyethylene (PE) plastic. The molten-salt environment facilitated synchronized decomposition of CS and PE plastic, effectively suppressing polycondensation and coking reactions while promoting hydrodeoxygenation of functional groups and C–O bond cleavage. Moreover, alkaline sites provided by alkali-metal cations catalyzed more complete secondary cracking and reforming of volatiles, resulting in an increase in gas production and a decrease in bio-oil and biochar production. Meanwhile, the fractions of H 2 and CO in the syngas were enriched, the hydrocarbon content in the pyrolysis bio-oil increased, and oxygenated compounds such as alcohols, aldehydes, and ketones were markedly reduced. Additionally, the templating and etching effects of the molten salt improved the structural ordering of the biochar, lowered its O/C ratio, and promoted a transition from microporous to mesoporous architecture. Notably, the synergistic effect between CS and PE was most pronounced at 550 °C with a 1:1 blending ratio, where the H 2 content reached 29.26 vol% (108.11 mL g −1 ) and the hydrocarbon fraction in the bio-oil increased to 62.52%. Overall, molten salt-assisted co-pyrolysis provides a promising strategy for the targeted production of H 2 /CO-rich syngas, low-oxygen bio-oil, and structurally optimized biochar from biomass and waste plastics.
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