INORGANIC CHEMISTRY COMMUNICATIONS
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2025
·
IF 5.4
Hao Liu,Aihua Tang,Weixiang Xu,Hanzhong Ren,Yiting Xu,Birong Zeng,Conghui Yuan,Lizong Dai
Inorganic nanoparticle modified epoxy resins (EP) has been widely studied to enhance anti-corrosion performance. However, the effect of nanofillers dimensions plays an important role, which has not been systematically explored. Herein, the dimensional effect of nanofillers was systematically investigated by selecting homologous carbon-based materials, i.e., carbon black (CB), carbon nanotubes (CNT) and graphene (G) as zero-dimensional (0D), one-dimensional (1D) and two-dimensional (2D) material. The dimension of nanofillers was confirmed by transmission electron microscopy. Electrochemical impedance spectroscopy and salt spray testing revealed the differences in corrosion protection of composite coating. The morphology and types of corrosion products were investigated in depth. After soaking for 28 days, the charge transfer resistance ( R ct ) of EP decreased from 2.17 × 10 10 Ω⋅cm 2 to 3.45 × 10 7 Ω⋅cm 2 . However, the R ct of EP doped G coating only decreased by one order of magnitude and remained at 1.94 × 10 11 Ω⋅cm 2 , exhibited superior anti-corrosion performance. This research provided unique insights into the development of new anti-corrosion nanofillers.
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ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2025
·
IF 11.3
Ying-Jie Zhang,Jia-Shu Tao,Han-Qing Yu
Metal oxides and carbon materials, which can be readily obtained from minerals and biomass, respectively, offer both performance and cost advantages and are the catalysts of choice for catalytic wastewater treatment applications. In this work, we explore the optimal compatibility between catalysts, with metal oxides and carbon materials as examples, and oxidants with peroxymonosulfate and peroxydisulfate (PMS and PDS) as representatives. Metal oxides catalyze PMS effectively and exhibit an efficiency 1–3 orders of magnitude higher than when catalyzing PDS. Conversely, carbon materials catalyze PDS much more effectively, with an efficiency 1–3 orders of magnitude higher than when catalyzing PMS. The scientific mechanism behind such a compatibility is found to be attributed to the polarity-based matching effect between valence bonds on the catalyst surface and the oxidant molecules, following the polarity principle of “similarity-intermiscibility” theory. Composite materials containing metal and carbon prepared according to this mechanism demonstrate robust performance for both PMS and PDS, consistent with the predictions and validating the rationality and expandability of the compatibility principle. This work provides guidance for catalyst selection in the application of persulfate-catalyzed water purification technology.
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WATER RESEARCH
·
2025
·
IF 12.4
Lingzhi He,Siqi Wang,Yadong Yang,Zhuqi Chen
Electrochemical reductive dechlorination provides an environmentally friendly and sustainable method for the remediation of chlorinated ethenes (CEs) without chemical additives. However, the limited mass and electron transfer of commonly commercial electrodes restricts surface reactions with CEs. Herein, metal-free biochars (BCs) with high adsorption capacity (22.68∼51.32 mg/g) and conductivity (84∼303 Ω) were utilized as cathode materials for the effective dechlorination of CEs. The BC900 cathode exhibited a dechlorination efficiency of 98.14 % for 10 mg/L trichloroethylene (TCE) within 24 h, with a k obs of 0.161 h⁻¹ under an applied potential of -1.0 V. Carbon balance and chloride form analyses indicated that nearly all C Cl bonds were cleaved, with ethylene and acetylene identified as the primary end products. Quenching, kinetic, and electrochemical experiments demonstrated that the dechlorination process involves a direct electron transfer reduction pathway via conductive structures of BCs. Moreover, the synergistic effect on TCE dechlorination was superior to that of commercial electrocatalysts, achieving high reusability and wide adaptability in environmental water. This methodology can also be extrapolated to other CEs, including tetrachloroethylene, cis -1,2-Dichloroethylene, and vinyl chloride. These findings highlight an adsorption-coupled electrochemical reductive dechlorination mechanism for CEs, providing a theoretical foundation for the development of high-performance, biomass-based electrocatalysts in environmental applications.
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ACS Applied Energy Materials
·
2025
·
IF 5.5
Yu Zhang,Xiang Cui,Panpan Xie,Zengming Man,Shouyu Ren,Xiaohui Liang,Guan Wu
Rechargeable aqueous Zn–Mn batteries have attracted significant attention for their potential as high-safety energy storage systems in the next generation. However, the main limitation of Mn-based cathodes lies in their low practical capacity and unclear energy storage mechanism. In this study, a core–shell manganese–iron oxide nanoarchitecture (FMFO@C) cathode was introduced for the first time. This cathode not only possesses a robust structure and high conductivity but also enables three-dimensional (3D) transport of Zn ions, resulting in a significantly enhanced specific capacity, superior rate performance, and prolonged cycle life. Consequently, the evaluated aqueous Zn//FMFO@C battery demonstrates an impressive specific capacity of 441 mA h g–1 at 0.1 A g–1 and excellent capacity retention of 118 mA h g–1 at 2 A g–1 over 3000 cycles. Combined with density functional theory (DFT) calculations, the core–shell FMFO@C cathode allows for a reversible insertion of Zn2+ into the redox-active FMFO and reversible deposition–dissolution of Zn4SO4(OH)6·xH2O (ZSH) on the amorphous carbon skeleton. The proposed strategy exhibits significant merits in terms of overall practical capacity and cycling stability, which can be extended to the elaborately modifying design of cathode materials for reliable and cost-effective energy storage.
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NANOTECHNOLOGY
·
2025
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IF 2.8
Abdudin Geremu TEMAM,Adil Alshoaibi,Chawki Awada,Assumpta Chinwe Nwanya,Fabian I Ezema,P. M. Ejikeme
The development of renewable energy technologies requires effective energy storage devices. Supercapacitors are promising energy storage devices that have attracted considerable attention from researchers due to their fast charging and discharging rates. In this study, V2O5 and f-CNT integrated V2O5 composites (f-CNT/V2O5) were synthesized and studied for electrochemical capacitors' application. While the V2O5 was synthesised using a hydrothermal process. The f-CNT integrated V2O5 (f-CNT/V2O5) composites at various percentages of f-CNT were synthesized using a wet impregnation process. The specific capacitance obtained for V2O5 nanoparticles was 20.78 F.g-1 at 0.1 A.g-1, but f-CNT integrated V2O5 composites showed enhanced specific capacitance of 66.58, 140.94 and 73.15 F.g-1 at 0.1 A.g-1 for f-CNT/V2O5 (10:90), f-CNT/V2O5 (20:80) and f-CNT/V2O5 (30:70) composite, respectively. These results confirmed the enhancement in the supercapacitive performance of V2O5 due to the integration of f-CNT into it. The f-CNT facilitates electron transfer through enhanced conductivity and promote redox reactions through an increased electrode surface area. The best performing f-CNT/V2O5 composite (f-CNT/V2O5 (20:80)) electrode was used to assemble an asymmetrical supercapacitor cell. The f-CNT/V2O5//C device shows a specific capacitance of 261.1 F.g-1 at 1 A.g-1, and 81.8 % of coulombic efficiency for 5000 cycles at 4 A.g-1. Additionally, the assembled device shows a characteristic energy density (52.2 Wh.kg-1) and power density (2400 W.kg-1), which is better than many similar devices.
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Communications Materials
·
2025
·Vol. 6
·期 1
·1-8
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IF 9.6
Lin Qicai,Jin Junjie,Jiang Yongkang,Sheng Guan,Schwingenschlögl Udo,Wu Junwei,Tu Shaobo,Liu Xingjun,Zhang Xixiang
Al-ion batteries (AIBs) have emerged as a promising energy storage technology due to their high theoretical capacity, cost-effectiveness, and superior safety. However, the lack of stable and efficient cathode materials capable of reversible Al-complex ion (e.g., [AlCl 4 ] − ) insertion/extraction remains a critical challenge. In this work, we developed TiNbCT x MXene as a high-performance cathode material for AIBs, achieving remarkable capacity and cycling stability. Unlike symmetric-structured Ti 2 CT x , the TiNbCT x cathode leverages synergistic Ti–Nb bimetallic effects to enhance the electronic conductivity and electrochemical activity. Here we show, TiNbCT x delivers a high reversible capacity of 194 mAh·g −1 at 0.2 A·g −1 with 800-cycle stability. Through combined experimental characterization and density functional theory (DFT) calculations, we elucidate the kinetic mechanisms of energy storage, offering fundamental insights for the rational design of advanced cathode materials in AIBs.
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ACS Nano
·
2026
·
IF 16
Dengke Wang,Le Chang,Yu Xie,Tengxuan Zhang,Liguo Zhang,Shuo Chen,Qiancheng Zhu
Aqueous Zn//V2O5 batteries (ZVBs) hold promise for large-scale energy storage due to their high safety and low cost, but face critical challenges of Zn dendrite growth and parasitic side reactions at the Zn anode, coupled with severe vanadium dissolution and shuttle at the V2O5 cathode. Conventional strategies, such as electrolyte engineering or separator modifications, often focus on single-component optimization, neglecting synergistic anode and cathode regulation. Herein, we developed a Zeolite Socony Mobil-5 (ZSM-5) filled glass fiber separator (ZSM-5@GF) to address these issues simultaneously. The ZSM-5 zeolite facilitates the Zn2+ desolvation via binding H2O molecules, suppressing HER and side reactions. And it could also homogenize the ion concentration distribution for dendrite-free Zn plating/stripping. Concurrently, ZSM-5 zeolite could also immobilize dissolved vanadium species via electrostatic adsorption, mitigating cathode degradation and shuttle-induced capacity fading. Benefiting from the synergistic anode/cathode interface regulation, both electrodes dramatically extended their cycle life, and an Ah-level pouch-type Zn//V2O5 cell is also realized for continuous cycling. This bifunctional separator realizes synergistic stabilization of the Zn anode and V2O5 cathode, offering a cost-effective and scalable strategy for high-performance AZVBs toward practical applications.
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ACS Applied Materials & Interfaces
·
2026
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IF 7.8
Lingmei Zhu,Hengyu Pan,Huijie Wei,Tiance Zhang,Boyang Tian,Jianhua Wang,Yongping Hou,Yongmei Zheng
A bioinspired photothermic MOF-spindle-knot microfiber (BPMM) is designed by using polyisopropylacrylamide, α-polyvinylidene fluoride as-grown metal–organic framework (MOF-303), and carbon black. A mechanism of water harvesting is related to the integrative effects of chemical and structural, i.e., BPMM composed of periodic-distributed MOF-spindle-knot with rough curvature gradient features, displaying the three-dimensional skeleton with porous channel and high-hydrophilic sites and photothermal responsive hydrophilic–hydrophobic switches as well, which runs a synergistic effect to achieve an ultrahigh water uptake-release and propel water-molecule capture in high efficiency under atmospheric low humidity. BPMM takes on ∼ 100% of water release under 1 sun for as-uptaked water and, accordingly, achieves the water harvesting capability of ∼0.16–0.62 g g–1 h–1 at ∼25 °C and ∼10–60% relative humidity (RH), which outperforms 2–8 times higher than that of normal MOF-303 or other fibers. BPMM maintains 72 cycles day–1, achieving water harvesting capability of ∼12.27 g g–1 in ∼10% RH, under 1 sun. As outdoor at ∼33.4 °C with ∼42.7% RH and ∼0.66 kW m–2, BPMM reaches water harvesting capability of ∼24.71 g g–1 day–1. This finding provides an insight into the design of supermaterials, which would be extended into some realms, e.g., water engineering, energy system, sensor devices in situations with water scarcity, etc.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Jiachen Zhao,Huilin Hu,Chao Wang,Yingting Li,Xueyu Jiang,Ming Zhang,Fangkai Han,Ning Yang,Xiaodan Liu,Jiahua Wang,Yingli Wang,Shuo Duan,Huang Dai,Fuwei Pi
Capsaicin, the primary bioactive compound responsible for the pungency in chilli peppers, poses potential health risks at excessive levels. This study introduced a novel approach for capsaicin detection in food products using a reduced graphene oxide and multi-walled carbon nanotubes (rGO/MWCNTs)-based conductive ink integrated electrodes (IDE) produced via inkjet printing. A hybrid ink was synthesized by dispersing rGO and MWCNTs in polyethylene glycol 400, with the mass ratio of 1:2 to facilitate electron transfer. The rGO/MWCNTs-printed IDE sensor provided a dynamic range of 0.1 μM to 100 μM and a detection limit as low as 0.035 μM. The sensor exhibited good repeatability and selectivity, and maintained 97.5% of its initial response over 28 days. Practical applicability was validated in red, green, millet chilli pepper extracts and hotpot seasoning, yielding recoveries of 92.71–108.48%. The printed rGO/MWCNTs IDE platform enables sensitive capsaicin analysis and is suitable for food quality control
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123915
·
IF 7.5
Jumeng Di,Xiaohua Li,Songyu Guan,Wenwen Ma,Wen Li,Jie Gao,Yuzhi Xu,Bing Yu,Hailin Cong
Nanoplastics (NPs) pose severe risks to aquatic environments, and adsorption technology provides a promising strategy for their removal. Metal-organic frameworks (MOFs) are promising adsorbents, but their practical application is limited by insufficient water stability and restricted pore accessibility. To bridge this gap, defect-engineered Al/Mn bimetallic MOFs were synthesized via mild post-synthetic ion exchange. n-Octanoic acid (OA) was employed to modulate the crystallization process of MIL-53(Al), inducing missing linker defects, suppressing excessive crystal growth, and generating mesoporous structure. Subsequently, the partial substitution of terephthalic acid linkers with manganese clusters could introduce additional active sites, alter the surface properties while maintain the overall crystallinity of MOFs. The optimized Mn-0.2-OA maintained high PS removal efficiency under acidic to neutral conditions, with removal efficiencies above 92% over pH 1–7. It also showed good tolerance to representative interference factors, retaining removal efficiencies above 97.5% in the presence of common cations and 89.37% at 40 mg/L humic acid. The adsorption of 500 nm polystyrene microspheres was mainly driven by the synergistic effects of electrostatic attraction, π-π interactions, enhanced hydrophobic affinity, and hierarchical pore structure. Meanwhile, Mn-0.2-OA achieved a Langmuir-fitted maximum adsorption capacity of 849.17 mg/g and exhibited rapid adsorption kinetics, removing 96.4% of PS within 10 min at an initial concentration of 25 mg/L. Regeneration tests further confirmed its acceptable reusability for repeated PS adsorption. This strategy provides a feasible approach for designing efficient and reusable adsorbents for nanoplastic removal from aquatic environments.
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NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 47
·期 3
·1081-1088
·
IF 3.925
Shuchao Jiang,Guoqing Ren,Tie Yu
Formic acid (FA) is regarded as a promising hydrogen storage material, and designing efficient catalysts for the dehydrogenation of high-concentration FA (HCF) is attractive but challenging. Herein, a catalyst comprising PdAu nanoparticles (NPs) anchored on amine-functionalized commercial active carbon (PdAu/AC-NH2) was synthesized and evaluated for the dehydrogenation of HCF without additives under ambient conditions. The Pd3Au2/AC-NH2 catalyst exhibits durable performance and 100% H2 selectivity when the FA concentration is ≤5 M and affords an excellent turnover frequency (TOF) of 3300 h−1 for 5 M FA and 603 h−1 for neat FA at 303 K. Subsequent characterizations reveal that the Au content affects the surface energy and electron property of Pd on PdAu alloy nanocatalysts, which play an indispensable role in the rate committed step of HCOO* adsorption and C–H cleavage. Besides, ultrafine PdAu NPs (2.20 nm) and amine groups synergistically accelerate catalyst activity. This work may pave the way for HCF-based high hydrogen density storage under ambient conditions.
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NANOTECHNOLOGY
·
2022
·Vol. 33
·期 48
·485404
·
IF 3.953
Shang Wu,Xin Xu,Xiangtao Yan,Huanlei Zhao,Chaoyang Liu,Yanbin Wang,Qiong Su,Fenping Yin,Quanlu Yang
In this work, a mild chemical precipitation method and simple hydrothermal treatment of the nickel hexamyanocobaltate precursor strategy are developed to prepare a sea urchin-like CoNi2S4 compound with remarkable specific capacity and excellent cycling stability. The prepared CoNi2S4 has an outstanding specific capacity of 149.1 mA h g−1 at 1 A g−1 and an initial capacity of 83.1% after 3000 cycles at 10 A g−1. Moreover, the porous carbon nanospheres (PCNs) with exhibit cycling stability (94.7% of initial specific capacity after 10 000 cycles at 10 A g−1) are selected as negative electrode to match CoNi2S4 positive electrode for assembly of CoNi2S4//PCNs asymmetric supercapacitor (ASC). Satisfactorily, the as-assembled CoNi2S4//PCNs ASC exhibits an impressive energy density of 41.6 Wh kg−1 at 797 W kg−1, as well as the suitable capacity retention of 82.8% after 10 000 cycles. The superior properties of the device demonstrated that the as-prepared material is potential energy storage material.
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危险品化学品经营许可证（带存储）