CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Qida Peng,Huihui Su,Jiannan Qin,Hao Cheng,Mingfu Li,Pingjun Zhang,Liqun Jiang
2,5-Furandicarboxylic acid (FDCA) is a promising renewable alternative to petroleum-derived terephthalic acid for the production of bio-based polyesters. However, achieving efficient thermocatalytic oxidation of 5-hydroxymethylfurfural (HMF) to FDCA under mild conditions remains challenging. Herein, we report a lignin-derived nitrogen-doped carbon-supported Co–Mn dual single-atom catalyst (CoMn/LNC) prepared by a chelation-pyrolysis method, which achieves a 99.9% FDCA yield with a productivity of 1542.0 μmol FDCA ·g cat −1 ·h −1 at 65 °C using air as the oxidant. Physicochemical characterizations indicate that an asymmetric CoN 3 –MnN 3 electronic configuration in CoMn/LNC serves as the key catalytic center, which lowers the reaction activation energy and promotes the formation of FDCA under mild condition. Combined density functional theory calculations and in situ DRIFTS reveal that the asymmetric coordination modulates the d-band center, enhances interfacial electron transfer, and promotes HMF adsorption and subsequent oxidation. Furthermore, the asymmetric configuration facilitates oxygen activation and shifts the rate-determining step from the oxidation of HMFCA to FFCA toward FDCA desorption. This work provides a feasible strategy for designing transition metal dual single-atom catalysts for HMF oxidation to FDCA.
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EES Catalysis
·
2026
·
IF 9.8
Mingge Zhi,Jinan Niu,Chaoyao Yao,Ruixuan Zhang,Shunle Zhou,Sonehra Anjum,Fangfang Liu,Yihan Ling,Guiqing Liu,Guohua Fan,Arianit A. Reka,Farid Akhtar,Peizhong Feng,Hermenegildo Garcia
Developing efficient and durable oxygen evolution reaction (OER) electrodes for alkaline water electrolysis requires not only catalytically active components but also strong interfacial integration between the catalyst layer and the conductive substrate. Herein, we report a one-step hydrothermal route for constructing a six-metal NiZnCuCoMnFe LDH-based heterostructure directly on copper foam, denoted as M6-LDH/CF. Rather than forming an ideal homogeneous multimetal LDH phase, the synthesis produces an integrated architecture consisting of a six-metal LDH nanosheet framework, segregated Co/Mn-containing oxide or oxyhydroxide surface phases, and a reconstructed Cu/Cu₂O/CuO interfacial region derived from the substrate. Structural analyses indicate that differences in hydrolysis, oxidation, and precipitation behavior among the metal species, together with substrate oxidation under hydrothermal conditions, govern this non-ideal growth pathway. The optimized M6-LDH/CF electrode exhibits overpotentials of 181, 392, and 502 mV at 10, 50, and 100 mA cm⁻², respectively, and maintains stable operation at 50 mA cm⁻² for 100 h. Post-OER XPS further reveals pronounced surface-state evolution, including Cu oxidation, Zn leaching, and the formation of more metal–oxygen–metal coordination environments, indicating that M6-LDH/CF functions as a precatalyst architecture that evolves toward a more oxidized working state during operation. These results suggest that controlled non-ideal in situ growth can be used constructively to fabricate integrated multimetal OER electrodes with favorable activity and operational stability in alkaline media.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Jingran Li,Longyan Cui,Chen Wang,Xuetao Liang,Mengying Wang,Han Wang,Qi Yang,Zhilin Yang
A three-dimensional particle electrode was established by integrating MoS 2 with nitrogen-doped Fe Mn biochar (MoS 2 /NFMB-1.0), enabling efficient electrochemical oxidation of tetracycline (TCH) in aqueous environments. Under optimized conditions, the MoS 2 /NFMB-1.0 achieved a TCH removal efficiency of 96.60%, substantially outperforming the two-dimensional electrode system. After five successive cycles, the degradation efficiency remained at 89.65%. The MoS 2 /NFMB-1.0 also promoted stronger mineralization, with a TOC removal of 74.31%, outperforming NFMB (65.21%), MoS 2 (38.43%). Reactive oxygen species (ROS) analysis revealed that the reaction was primarily driven by 1 O 2 (39.37%), accompanied by O 2 ·- (31.73%) and ·OH (28.90%). The incorporation of MoS 2 facilitated the Fe/Mn redox cycle and ensured continuous ROS generation throughout the reaction. The 3D/MoS 2 /NFMB-1.0 system maintained strong reactivity across a broad pH range from 3 to 11 and remained effective toward several representative antibiotics. Liquid chromatography-mass spectrometry (LC-MS) further clarified the transformation pathways of TCH, while ecotoxicity prediction confirmed that the toxicity of intermediates progressively declined as the reaction proceeded. These results highlight the significant potential of the MoS 2 /NFMB-1.0-based 3D particle-electrode system for future electrochemical water treatment.
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SENSORS AND ACTUATORS B-CHEMICAL
·
2025
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IF 7.7
Yuchen Jiang,Jiaru Yang,Linlin Dong,Xiaolian Liu,Lanlan Guo,Yingli Yang,Jianliang Cao,Yan Wang,Guodong Wang
Hydrogen sulfide (H 2 S), as a highly toxic gas, poses severe threats to human health when its concentration exceeds safety thresholds. Therefore, it is crucial to develop H 2 S sensors with high response, excellent selectivity and fast response characteristics. In this work, we successfully synthesized In 2 O 3 -based nanotubes through a synergistic strategy combining variable-valence metal ion doping (Ni, Mn) and oxygen plasma treatment, achieving ultra-sensitive H 2 S detection at a low operating temperature of 75°C. Remarkably, the oxygen plasma-treated Ni-doped In 2 O 3 nanotubes (denoted as Ni-In 2 O 3 -plasma) exhibited outstanding sensing performance to 5 H 2 S gas: An unprecedented response value of 6601.4, a low detection limit of 100 ppb and superior anti-interference selectivity. Moreover, in situ diffuse reflectance infrared Fourier transform spectra (DRIFTS) proves the possible products in the gas-sensing reactions. Mechanistic investigations through electron paramagnetic resonance (EPR) and X-ray photoelectron spectroscopy (XPS) revealed that the enhanced performance is mainly attributed to the two synergistic effects of abundant oxygen vacancies and high Ni 3 + /Ni 2⁺ ratio in the composite materials. This study provides an efficient and controllable optimization strategy for the development of high-performance metal oxide semiconductor (MOS)-based H 2 S sensors.
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JOURNAL OF POWER SOURCES
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2025
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IF 7.9
Yukun Pan,Yuhu Li,Lei Hu,Yudong Yang,Jiacheng Guo,Sijie Yang
To address the rapid capacity degradation of spinel LiMn 2 O 4 caused by Mn dissolution and Jahn-Teller distortion, this work develops a surface-engineered LiMn 2 O 4 material (LMO@NCM) through a urea-assisted homogeneous precipitation and gradient sintering strategy. The resultant gradient Ni-Co co-doped LiNi x Co y Mn 2-x-y O 4 coating synergistically combines bulk-phase doping and surface modification benefits. Systematic investigations reveal that LMO@NCM1 % delivers enhanced cycling stability with an initial discharge capacity of 119.74 mA h g −1 and 92.25 % capacity retention after 200 cycles at 1C (148 mA h g −1 ) under 25 °C, significantly outperforming pristine LMO (116.48 mA h g −1 , 84.47 % retention).Characterization results revealed that the Ni-Co gradient co-doping improved the electrode's interfacial kinetics, suppressed manganese dissolution, and mitigated side reactions between the electrolyte and the electrode, thereby significantly enhancing the battery's rate capability and cycling stability.
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JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
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2022
·Vol. 97
·期 5
·1293-1304
·
IF 3.709
Le-Yao Wang,Zhen Yang,Feng Guo,Xiang-Li Long
BACKGROUND 2-nitro-4-methylsulfonylbenzoic acid (NMSBA) is commercially produced from the oxidation of 2-nitro-4-methylsulfonyltoluene (NMST) with nitric acid as oxidant and V 2 O 5 as catalyst in a strong acid solution; this process suffers from the following shortcomings: the discharge of large amounts of wastewater and waste gas, as along with the generation of polynitro compounds. It is necessary to develop a technology to avoid the pollution caused by oxidizing NMST with nitric acid. NMSBA can be synthesized by oxidizing NMST with air under the catalysis of the porous carbon made from coconut shell with ZnCl 2 as an activator together with Co/Mn/Br. RESULTS The optimum conditions for the preparation of the porous carbon are as follows: impregnation temperature 60 °C, ZnCl 2 concentration 0.50 mol L −1 , impregnation duration 6 h, carbonization temperature 600 °C, and carbonization time 4 h. The surface characterization suggests that the carbon made in this study holds smaller surface area, acidic groups, and basic groups than the commercial carbon but owns more carboxyl. CONCLUSION The Co/Mn/Br/AC (AC,the porous carbon made in this study) catalytic system is superior to the Co/Mn/Br/H 3 PMo 12 O 40 @CAC(CAC,commercial activated carbon) catalytic system in the production of NMSBA from the oxidation of NMST. The NMSBA selectivity gained by the former is 93.40%, while that gained by the latter is 87.14%. The former can cut down the consumption of NMST and the expenditure of catalysts. The catalytic ability of the AC catalyst relies on its surface chemical characteristics and physical properties. More carboxyl on AC is the reason for the upgrade of NMSBA selectivity. © 2022 Society of Chemical Industry (SCI).
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CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
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2022
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IF 0.847
Hui-Chao GUAN,Xiao-Tong SONG,Gui-Bao LIU,Shu-Mei YUE
Complexes [Zn(pbm)(5-hip)3] ( 1 ), [Zn(pbm)(5-nip) 3 ] ( 2 ), [Mn(pbm)(H 3 btc) 2 (H 2 O)] ( 3 ) and [Mn(pbm)(5-nip) 3 ] ( 4 ), where H 2 HIPA = 5-hydroxyisophthalic acid, H 2 nip = 5-nitroisophthalic acid, H 3 btc = trimesic acid and pbm (pyridine benzene chelate material) = 2-(2-pyridyl)benzimidazole, were identified via single-crystal XRD analyses. 1, 2 and 4 pertain to the monoclinic space group C 2/ c , while 3 belongs to the triclinic space group P ① . The interplay of CT-DNA with those complexes was delineated using ultraviolet, fluorescence, and circular dichroism (CD) spectroscopy and viscosity measurements. Complexes 1, 2, 3 and 4 interact with CT-DNA in an electrostatic or grooving mode. We wish to offer a theory-wise foundation for developing anti-tumor medicines.
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CHEMICAL ENGINEERING JOURNAL
·
2022
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IF 16.744
Yuan Qin,Zihao Ou,Chuanlan Xu,Jianping Liu,Qi Lan,Rong Jin,Xinru Xu,Chaozhong Guo,Honglin Li,Yujun Si
Carbon-supported single Mn atoms catalysts are seen as one of the most promising substitutes for the conventional Pt-based catalysts owing to weaker Fenton reaction , higher stability and lower cost. We here report a confined thermal-erosion strategy for converting Mn-based MOF materials (Mn-ZIF-8) into a pore-rich graphene structure (4 ∼ 5 layers) with highly accessible defect-hosted Mn-N 3 sites and ultrahigh specific surface area (1419 m 2 g −1 ) via high-temperature full-gasification of graphitic C 3 N 4 , which can serve as an efficient single Mn atoms catalyst for oxygen reduction reaction (ORR). The catalyst shows superior ORR catalytic activity with a half-wave potential of 0.863 V ( vs. RHE), high cycling stability and four-electron selectivity for the ORR. Theoretical calculations indicate that the promoted ORR activity of the Mn-SAC catalyst may be mostly attributed to the defective Mn-N 3 sites with a lower free energy barrier and a higher intrinsic activity compared to in-plane Mn-N 4 sites. The Zn-air battery assembled with this catalyst represents a maximum power density (226 mW cm −2 ) and superior energy density of 857 Wh kg Zn -1 , far exceeding the air battery performance using the Pt/C catalyst. Our findings can provide new design methods and in-depth insights for defect-hosted active single-metal-atoms ORR catalysts. W h
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ACS Applied Energy Materials
·
2022
·
IF 6.959
Jian Sun,Shengbin Bai,KeKe Li,Yue Zhou,Yuning Chen,Lei Liu,Zijian Zhou
CaCO3/CaO materials possess the advantages of low cost, high energy storage density, and working temperature, which offer these materials the potential to be used in thermochemical energy storage systems for concentrated solar power plants. However, CaCO3/CaO materials possess poor antisintering and optical absorption abilities, largely limiting their practicability for direct solar utilization. In this study, binary ion doping of Fe/Mn and Zr-based stabilizer incorporation were simultaneously conducted to improve the cyclic thermal energy storage/release performance of CaCO3/CaO materials. The spectral absorbance of synthetic CaO-based composites (ranging from 77.8% to 84.0%) doped with binary ions of Fe/Mn is greatly increased in comparison to that of pure CaO (∼12.2%) due to the generation of black Ca2Fe2O5 and Ca4Mn3O10. The cyclic thermal energy storage/release performances of synthetic CaO-based composites were comparatively investigated under two thermal energy storage modes (CSP-N2 and CSP-CO2). The Zr-doped, CaO-based composites exhibit a cycling stability superior to those of Zr-free CaO-based composites due to the generated inert CaZrO3 with desirable antisintering ability, and the superiority is more prominent under CSP-CO2 mode. After 50 cycles, the CaO-based composite with a molar ratio of Ca:Zr = 100:6.7 exhibits a remarkably stable energy release density of 1.02 MJ/kg under CSP-CO2 mode, retaining 88.9% of its initial energy release density.
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JOURNAL OF HAZARDOUS MATERIALS
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2022
·
IF 14.224
Chengyun Zhou,Yuntao Liang,Wu Xia,Eydhah Almatrafi,Biao Song,Ziwei Wang,Yuxi Zeng,Yang Yang,Yanan Shang,Chaohai Wang,Guangming Zeng
Highly efficient single atom catalysts are critical to substantially promote for peroxymonosulfate (PMS) activation to organic pollutant degradation , but it remains a challenge at present. Herein, single atom Mn anchored on N-doped porous carbon (SA-Mn-NSC) was synthesized by ball milling of Mn-doped carbon nitride and spirulina biochar to dominantly activate PMS . The precursor of carbon nitride and spirulina possessed a strong coordinating capability for Mn(II), facilitating the formation of highly dispersed nitrogen-coordinated Mn sites (Mn-N 4 ). The SA-Mn-NSC catalyst exhibited high activity and stability in the heterogeneous activation of PMS to degrade a wide range of pollutants within 10 min, showing an outstanding degradation rate constant of 0.31 min −1 in enrofloxacin (ENR) degradation. The high surface density of Mn-N 4 sites and abundant interconnected meso–macro pores were highly favorable for activating PMS to produce 1 O 2 and high-valent manganese (Mn(IV)) for pollutant degradation. This work offers a new pathway of using a low-cost and easily accessible single-atom catalysts (SACs) and could inspire more catalytic oxidation strategies.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Zhiqun Xie,Zhiping Lyu,Jinnan Wang,Aimin Li,Philippe François-Xavier Corvini
Ultrafine-Mn 2 O 3 @N-doped porous carbon hybrids [Mn 2 O 3 @NC] derived from Mn-MOFs was constructed with 1 O 2 and O 2 −• as main Reactive oxygen species (ROS). Cation-π bonds and N-Mn complexation induced the formation of electron-rich Mn centre which provided electron for peroxymonosulfate activation to produce radicals, accompanying with generation of 1 O 2 via chain reaction. Notably, the porous structure of N-doped carbon shell could not only facilitate free radical recombination for generation of 1 O 2 but also provide adsorption sites for organics. On the other hand, as electron-poor centre, N-doped carbon shell could improve the electrons transfer from organic intermediate radicals to electron-rich Mn centre via π -π reaction, C-O-Mn and C-N-Mn bonds, which promote the redox of Mn to avoid peroxymonosulfate invalid decomposition. Being attributed to synergistic effects of dual-reaction centres and strong oxidation ability of 1 O 2 , Mn 2 O 3 @NC achieved high mineralization of BPA at low-dose peroxymonosulfate (0.033 g/L).
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CRYSTENGCOMM
·
2021
·Vol. 23
·期 39
·6899-6908
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IF 3.545
Huimin Wang,Tingting Wang,Zibin Huang,Yizhuo Liu,Dehui Leng,Junli Wang
The growth of metal chalcogenide nanowires (NWs) on metal substrates is challenging work since the direct reactions taking place between the chalcogen (S, Se or Te) and zero-valent metal (M0) are frequently unable to regulate the crystallization of nanocrystals in an anisotropic one-dimensional (1D) manner. We here report the use of Ag2Se seeds as catalyst particles to realize the growth of metal selenide (MSe) NWs on their respective metal foil or flakes, including ZnSe/Zn, CdSe/Cd, and MnSe/Mn material systems. Metal foil or flakes (M = Zn, Cd and Mn) serve as a support substrate as well as a metal cation source during the NW synthesis. The preformed Ag2Se seeds play the roles of not only catalytic particles that initiate a so-called solution–solid–solid process to produce crystalline MSe NWs on metal substrates, but also inert impurities that promote an electrochemical anodic reaction of the metal to supply metal cations (M0 − 2e → M2+) for the NW formation. The microstructural studies by HRTEM reveal the polytypism and particularly the diameter-dependence of crystal phases and growth directions in the resulting MSe NWs, which can be rationalized from the viewpoints of the energetics and the catalyst/NW interfacial structures. These semiconductor NWs grown on metal foil or flakes may find wide use in photoelectric catalysis and devices without a transfer process of free-standing NWs onto a conductive support substrate.
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危险品化学品经营许可证（带存储）