INORGANIC CHEMISTRY COMMUNICATIONS
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2026
·
IF 5.9
Xiaofei Guo,Zhongyao Guo,Chen Wang,Candong Liu,Honghui Cheng,Kuikui Wang
The highly active and stable oxygen reduction reaction (ORR) process is essential for driving the development of zinc-air batteries (ZABs). Therefore, by integrating the precise regulation of precursors, the tannic acid (TA) etching and nitrogen coordination strategy, a nitrogen-rich hierarchical porous Fe-N-C catalyst was successfully constructed. The uniform dispersion of particles was achieved by controlling the formation of the Fe-ZIF-8 precursor. Subsequent TA etching formed a rich mesoporous/microporous structure to improve active-site exposure. During the high-temperature pyrolysis process with melamine as the nitrogen source, a highly dispersed Fe-N X coordination structure was formed. Based on this rational design, the obtained catalyst presents a hierarchical porous structure, high nitrogen content and superior ORR activity, with a half-wave potential of 0.91 V in 0.1 M KOH solution. When applied to liquid and flexible ZABs, the catalyst delivers peak power densities of 186 mW cm −2 and 75 mW cm −2 , respectively, and cycling stability of over 1486 h is maintained in the liquid system-surpassing the performance of commercial Pt/C + RuO 2 . This research offers a fresh perspective on the design and synthesis of efficient ND-FeNC-TA catalysts and promotes the practical application of ZABs.
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CHINESE JOURNAL OF CATALYSIS
·
2026
·
IF 17.2
Bihua Hu,Hailin Cao,Zhen Chen,Zhiwei Lei,Xin Wang,Panagiotis Tsiakaras,Zhongwei Chen,Baomin Xu
Electrocatalytic carbon dioxide reduction (CO 2 RR) offers a highly promising strategy for achieving carbon-neutral energy cycles by converting CO 2 into high-value chemicals and fuels. While it remains challenging to modulate the electronic environment precisely and systematically around the active sites of catalysts to steer the reaction toward desired products, especially hydrocarbons such as methanol (CH 3 OH). This study reports a strategy that enables highly efficient CO 2 RR to CH 3 OH under neutral conditions by fine-tuning the electronic environment of cobalt center in cobalt phthalocyanine (CoPc) through nitrogen-rich supports. Among them, CoPc/TiN achieved a high Faradaic efficiency of 53.28% for CH 3 OH production at –1.0 V ( vs . reversible hydrogen electrode), with a partial current density of 68.76 mA cm ‒2 . X-ray photoelectron spectroscopy and extended X-ray absorption fine structure analyses reveal that electronic modulation at Co-N sites of CoPc, which can promote *HCO coupling, and it’s a critical step in CH 3 OH formation. Theoretical calculations further demonstrate that nitrogen carriers induce electronic redistribution within the Co center coordination environment. The projected density of states of *HCO on CoPc loaded on (Si)N-MXene)/TiN/C 3 N 4 shown electron deficient characteristics. It promotes the formation of *HCO, thereby facilitating CH 3 OH synthesis. This work provides new mechanistic insights into CO 2 RR for CH 3 OH and opens new avenues for designing efficient catalysts.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yuxin Tang,Xinyi Yang,Lingyu Zeng,Bili Tan,Fei Qi,Bo Feng,Liang Wang,Guangbo Che
Precise atomic-scale interface engineering across the entire pH range remains a formidable challenge for photocatalytic H 2 evolution. Herein, hexamethylenetetramine (HMT) is introduced as a bifunctional surface modifier that spontaneously constructs Pd-N coordination bridges on g-C 3 N 4 . The interfacial Pd-N bonds collectively down-shift the N-p-band center away from the Fermi level, break intrinsic surface charge symmetry of C/N atoms, and fully expose the originally buried N active sites, thereby steering the hydrogen adsorption free energy (|ΔG H* |) toward thermoneutral. Simultaneously, the Pd-N bond confines Pd cluster growth to ∼5 nm, doubling specific surface area and enriching edge active sites that serve as primary proton reduction centers. Transient photoelectric voltage results reveal that the Pd-N electron transfer channel shortens the carrier transfer path and prolongs photoelectron lifetime, enabling quantitative electron delivery under acidic, neutral, and alkaline environments. As a result, the Pd-CN-HMT sample presents an efficient H 2 evolution rate across the entire pH window. This work advances the field by providing a versatile ligand-based strategy to precisely tailor the interfacial electronic structure via strong chemical bonding, offering a distinct and scalable solution for constructing high-performance pH-universal photocatalysts.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
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IF 9.2
Nan Li,Xiaomi Xie,Mimi Zhang,Sitao Fang,Zifu Du,Loujun Gao,Lei Lv,Jianzhang Zhou,Deyin Wu,Rui Li,Xuan Jian
Developing efficient, stable and CO-tolerant electrocatalysts for alkaline hydrogen oxidation reaction (HOR) is vital for hydrogen fuel cells. Herein, we report a phytic acid-modified polyaniline-derived N, P-codoped porous carbon supported ruthenium catalyst (Ru/PA-Ani) for alkaline HOR. The catalyst exhibits an outstanding anodic current density of 8.97 mA cm −2 at 50 mV overpotential over 10 times higher than Ru/Ani and much better than commercial Pt/C. Mechanistic study suggested that the phosphate groups of Ru/PA-Ani catalyst establish a stable complexation system with polyaniline, and the molecular orbital distribution features of its HOMO and LUMO afford molecular-level support for the valence state modulation of Ru 3+ Meanwhile, N, P co-doping optimizes active site dispersion and electronic structure, promoting OH* generation and charge transport. This work provides an effective strategy for high-performance HOR catalysts and guides the design of low cost, stable anode catalysts for alkaline fuel cells.
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MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2026
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IF 5.2
Xueli Zuo,Feida Chen,Shujie Wu,Wei Zheng,Yuan Liu,Jun Li,Jifeng Zhang,Xiaobin Tang
Simultaneously optimizing electrical and thermal transport properties remains a major challenge for thermoelectric materials. In this work, high-entropy secondary phases (HE2P) were introduced into a Cu-doped PbTe matrix to improve the thermoelectric performance of n-type PbTe. Carbon-coated HE2P particles were incorporated into the PbTe matrix through vacuum melting and fast hot-pressing, resulting in a hierarchical microstructure with refined grains, heterointerfaces, and defect structures. The introduced HE2P effectively suppresses lattice thermal conductivity through enhanced phonon scattering induced by interfaces, lattice distortion, and mass fluctuation. Meanwhile, the heterogeneous interfaces introduced by the carbon-coated HE2P particles may also influence carrier transport behavior. As a result, the composite with 7% HE2P achieves a low lattice thermal conductivity of 0.39 W m −1 K −1 at 838 K and a peak ZT value of 1.38, together with an average ZT of 1.01 over 300–850 K. These results suggest that incorporating high-entropy secondary phases provides a feasible approach for improving the thermoelectric performance of PbTe-based materials.
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FOOD CONTROL
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2026
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IF 7
Wen Xie,Xiaoxiao Guo,Daohang Xing,Linjuan Huang,Li Zou,Cheng Fan,Qingqing Liu,Yu Lu,Xiaoqin Wang,Zhongfu Wang
Dairy quality and safety are critical in food supervision, with goat milk adulteration posing a major challenge. This study developed a sensitive HPLC-fluorescence method using N-glycolylneuraminic acid (Neu5Gc) as a specific marker to quantify bovine milk adulteration in goat milk. Analysis of pure goat milk samples from six breeds, four geographical origins, and different lactation seasons revealed that, despite variations attributed to these factors, Neu5Gc levels in goat milk were consistently more than 50-fold higher than those in bovine milk. Adulteration proportionally reduces Neu5Gc concentration. Linear regression models for water and bovine milk adulteration achieved R 2 values of 0.9857 and 0.9624, respectively, with mean absolute errors ≤4.0%. The method successfully identified commercial goat milk products adulterated with high proportions of bovine milk. Overall, this work provides a reliable and novel strategy for the authentication and quantitative adulteration analysis of goat milk, offering technical support for the supervision of dairy quality and safety.
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ACS Applied Polymer Materials
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2026
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IF 5.2
Liu Yang,Hu Guangkai,Zhang Xin,Lei Cong,Li Yongxiang
Highly flexible carbon-based electrochemical sensing
electrodes
remain a challenge. Introducing conducting polymers into carbon-based
materials is an effective strategy to enhance mechanical flexibility.
In this work, an n-type conducting polymer, poly(benzodifurandione)
(PBFDO), with intrinsic flexibility and ultrahigh conductivity (2000
S cm –1 ) was introduced into carbon-based ink (named
C:PBFDO ink). PBFDO covers the cracks in a carbon-based film, enabling
a uniform surface to dissipate stress. The electrical conductivity
of the C:PBFDO composite film (6.0 ± 0.5 S cm –1 ) was twice that of the carbon-based film, supporting a half-thickness
electrochemical sensing electrode design and further improving the
mechanical flexibility. After 10,000 bending cycles (a bending radius
of 1 mm), the sheet resistance of the C:PBFDO electrode increased
by less than 15%, and the electrochemical performance did not decline
significantly compared with that of the severely attenuated carbon-based
electrodes (CEs). The C:PBFDO composite electrode demonstrates excellent
mechanical flexibility, electrochemical performance, and storage stability,
making it a promising candidate for applications in flexible wearable
electronics.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124738
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IF 7.5
Xinyi Tao,Weiwei Chen,Xuehong Fan,Rui Hu,Xuejian Wang,Shiquan Sun,Yu-Hong Cui,Zheng-Qian Liu
Waste-derived biochar catalysts are widely used in catalytic ozonation. However, biochar is often constrained by insufficient surface active sites and low interfacial electron transfer efficiency. In this work, nitrogen (N) and sulfur (S) co-doped sediment-derived biochar (C-N 1 S 2 -600) was prepared by one-step pyrolysis using a mixed compost of black-odorous sediment, reed straw, and food waste as precursors, with melamine and thiourea using as the N and S sources, respectively. The optimized C-N 1 S 2 -600 has a well-developed mesoporous structure, abundant structural defects, and numerous reactive sites originating from N/S–C coordination. Ozonation with C-N 1 S 2 -600 achieved 62.8% Deethylatrazine degradation, which was significantly higher than that of ozonation alone (13.9%) and ozonation with pristine biochar (33.1%). C-N 1 S 2 -600 also exhibited excellent reusability over five consecutive cycles and maintained high performance in secondary effluent. Reactive species identification confirmed that C-N 1 S 2 -600 facilitated the conversion of O 3 into • OH. Theoretical calculations further revealed that N, S co-doping induced a more non-uniform surface charge distribution and narrowed the orbital energy gap, providing electronic-level insights into enhanced O 3 adsorption, interfacial electron transfer, and reactive oxygen species generation. C-N 1 S 2 -600 exhibited good operational stability and tolerance to matrix interference under the tested conditions. This study provides a feasible strategy for converting solid-waste-derived biochar into efficient carbonaceous catalysts for advanced wastewater treatment, and offers a promising strategy for micropollutant abatement and wastewater purification by catalytic ozonation with high-performance biochar catalyst.
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APPLIED CATALYSIS A-GENERAL
·
2026
·
IF 4.8
Huimin Luo,Jinming Yan,Deyun Xu,Jia Guo,Mengjie Fan,Longtian Kang,Qingfu Sun
P/N-type Z-scheme heterojunction of Co-PDI/Cu-CuTCPP is prepared by a simple way. • Multifunctional photocatalytic activity of is achieved for POE, PHE and CO 2 RR. • Catalytic activities for POE and CO 2 RR increase by ~3 and ~12 times, respectively. • The overall CO 2 RR in the aqueous phase can be achieved to yield O 2 , CO and CH 4 . • It is found that Co-O-Cu linkage exists and has important role in photocatalysis. Developing a multifunctional system for photocatalytic water splitting (PWS) and carbon dioxide reduction reaction (CO 2 RR) is a promising approach to achieve the green carbon cycling. Here, the p/n-type Z-scheme heterojunction (Co-PDI/Cu-CuTCPP) between cobalt perylene diimide nanorods (Co-PDI) and copper porphyrin metal-organic framework nanosheets (Cu-CuTCPP NSs) is constructed via a cetyltrimethylammonium bromide (CTAB)-assisted physical method. Systematical characterizations prove the existence of Co–O–Cu linkage, π-π interaction, and electrostatic forces between Co-PDI and Cu-CuTCPP. The effect of Co-PDI/Cu-CuTCPP ratio on the optical, photoelectric and electrical properties, as well as multifunctional photocatalytic activity is investigated and analyzed. Under visible light irradiation (λ > 420 nm), the Co-PDI/Cu-CuTCPP composites exhibit the photocatalytic activities of water splitting to H 2 and O 2 , as well as CO 2 RR to CO and CH 4 , respectively. After optimizing photocatalytic system, the oxygen evolution rate of 18.7 mmol·g −1 ·h −1 is reached, which is a 4.4-fold compared that of pure Co-PDI. The photogenerated electron conversion efficiency during CO 2 RR is 12.9-fold higher in Co-PDI/Cu-CuTCPP than in Cu-CuTCPP. Meanwhile, the overall CO 2 RR in the aqueous phase can be achieved without H 2 production. Mechanism studies reveal the photoelectrical conversion process, and confirm the synergistic role between Co-PDI and Cu-CuTCPP. Download: Download high-res image (310KB) Download: Download full-size image
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COMBUSTION AND FLAME
·
2026
·
IF 5.9
Fanggang Zhang,Jiahui Zhang,Lei Luo,Florian Jacob,Steffen Tischer,Kai Hong Luo,Olaf Deutschmann,Ran Sui
The catalytic total oxidation of n -decane, a key surrogate component for aviation kerosene, over platinum catalysts was investigated through a combination of wire microcalorimetry, in situ DRIFTS, fixed-bed catalytic experiments, and CFD simulations. Surface reaction rates were measured over a temperature range of 465–650 K at atmospheric pressure. To elucidate the underlying reaction pathways, a semi-detailed microkinetic mechanism was developed by integrating two lumped reaction steps with an existing elementary H–C 3 mechanism. In situ DRIFTS identified key surface intermediates, including carbonate, carboxylate and acetate species, which were subsequently incorporated into the reaction mechanism. The constructed kinetic model was rigorously validated against heat release data from microcalorimetry experiments and independently verified using fixed-bed reactor measurements, demonstrating strong predictive performance across various reactor configurations and operating conditions. CFD simulations further revealed the transition from kinetics-controlled to transport-controlled regimes with increasing catalyst temperatures, characterized by the evolution of surface species coverages and the adjacent gas-phase concentration gradients. Overall, this work provides fundamental kinetic insights into the catalytic oxidation of n -decane and establishes a framework for the development and optimization of catalytic combustion systems for advanced propulsion applications.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Xiangyang Gao,Jingfei Zhang,Xin Liu,Shukun Yin,Yafei Zhao,Yuanzheng Zhang,Bangbang Nie,Qiyan Wang,Xiaobo Wang,Ruya Guo,Ronghan Wei
Photorechargeable power systems (PPSs) based on supercapacitors (SCs) provide a sustainable solution for alleviating the energy crisis. However, sluggish kinetics in SCs are insufficient to meet the requirements of rapid photogenerated charge storage; achieving efficient self-charging remains a challenge. Here, PPSs integrating flexible solid-state asymmetric SCs (FSASs) with N-doped carbon-stabilized CoSe/NiSe 2 heterojunction (N-C@CoSe/NiSe 2 ) and flexible solar cells (FSs) are precisely designed to achieve efficient self-charging capacity. Theoretical calculations reveal that the robust built-in electric field (BIEF) at the heterointerface accelerates electron reconstruction and enhances the affinity of OH − , thereby endowing abundant electroactive sites and fast reaction kinetics. The stable interfacial chemical bond between the N-C frame and the CoSe/NiSe 2 heterojunction significantly strengthens the BIEF while buffering volume expansion during electrochemical, improving the integral structural stability. The N-C@CoSe/NiSe 2 ingeniously combines synergistic optimization of reaction kinetics and structural stability, achieving high capacitance (2124 F g −1 ) and excellent cycling stability. The assembled FSASs deliver excellent energy storage capacity (70.8 Wh Kg −1 ). More importantly, integrated PPSs achieve a highly efficient photogenerated charge storage capacity of 4.5 V min −1 and sustainability, powering wearable electronic devices and small unmanned aircraft. This work provides scientific insights and guidance for designing robust heterogeneous and advancing the exploitation of next-generation sustainable power systems.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Xiaolin Wang,Hexi Yu,Zhihong Dong,Zhouyang Sun,Yajuan Cai,Xueting Zhao,Jiefeng Pan
Covalent organic frameworks (COFs) are ideal candidates for constructing high-performance molecular separation membranes. Interfacial polymerization (IP) represents an important approach for fabricating continuous COF membranes. This study presents an N-heterocyclic organobase-mediated IP (N-het-IP) strategy to rapidly fabricate highly crystalline, continuous COF membranes at the interface. The key of the N-het-IP strategy lies in the presynthesized aqueous-phase tertiary amine intermediates derived from the N-heterocyclic organobase (such as piperazine) and aldehyde monomers (such as Tp). The tertiary amine intermediates with a Tp core and N-heterocyclic segments take part in the dynamic amine exchange reaction with organic-phase amine monomers, inducing interfacial membrane formation and COF crystalline transformation within 30 min under mild conditions. Simultaneously, the interfacial assembly of the tertiary amine intermediates constructs an amphiphilic interfacial microenvironment, regulating self-arrangement and suppressing disordered stacking, thereby yielding highly crystalline, continuous, and defect-free COF membranes. Moreover, the N-het-IP strategy exhibits broad universality, being compatible with various N-heterocyclic organobases and amine monomers of diverse COF membranes. Constructed via the N-het-IP strategy, the resulting COF membrane exhibits moderately high permeance and enables precise molecular sieving of dyes. The N-het-IP strategy provides a facile and efficient method to synergize the rapid synthesis and continuous assembly of COF membranes, paving the way for the development of COF membranes tailored for on-demand molecular separations.
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