JOURNAL OF POWER SOURCES
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2025
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IF 7.9
Fanghui Wang,Yinlei Li,Yitong Dou,Hong Zhu
In situ polymerization of ethylene dioxythiophene (EDOT) on Keqin Black EC-300 J (CB) to obtain a support (PEDOT@C) with polyethylene dioxythiophene coating on CB. By coating PEDOT on CB, the structural characteristics and surface functionalization degree of CB can be optimized. Then, highly dispersed Pt nanoparticles (NPs, 3–5 nm) was prepared by reducing chloroplatinic acid using an improved sodium borohydride reduction method and loaded onto PEDOT@C to obtain a high loading amount of 40 wt% Pt/PEDOT@C catalyst. The optimization of PEDOT@C structure can strengthen the dispersion of Pt NPs, increase the exposed active sites, thus improve the Electrochemical Active Surface area (ECSA) of Pt/PEDOT@C catalyst (reaching 114.28 m 2 /g), which is 127.5 % and 60.01 % higher than that of JM Pt/C and Pt/CB, respectively. Meanwhile, the Mass activity (MA) of Pt/PEDOT@C catalyst is 0.142 A/mg Pt, which is 38 % and 0.7 % higher than JM Pt/C and Pt/CB, respectively. The stability of Pt/PEDOT@C catalyst is also significantly improved. After accelerated testing, the ECSA loss is 8.33 %, much lower than the 17.33 % and 19.4 % of JM Pt/C and Pt/CB, respectively; the loss of MA is 9.8 %, much lower than the 41.7 % and 18.4 % of JM Pt/C and Pt/CB, respectively. The Pt/PEDOT@C catalyst also has the highest power density (1470 mW/cm 2 ), indicating that the PEDOT modification strategy helps to improve the catalytic performance of the catalyst. The results of this study will promote the development of PEMFCs power sources.
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高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 43
·e05445
·
IF 2
Hui Li
Direct methanol fuel cells (DMFCs) face significant challenges due to sluggish methanol oxidation reaction (MOR) kinetics and catalyst poisoning by carbon intermediates (e.g., CO ads ). To address this, we rationally designed nitrogen-doped carbon (NC) carriers with tailored N-configurations (pyridinic-N, pyrrolic-N, and graphitic-N) via controlled pyrolysis temperatures (700–1000 °C) and anchored Pt nanoparticles (NPs) to enhance metal-support interaction (MSI). The NC-900 carrier achieved optimal N-configuration distribution (56.7% pyridinic-N, 25.2% pyrrolic-N, 18.1% graphitic-N) and the highest defect density ( I D /I G = 1.12), enabling ultra-dispersed Pt NPs (1.69 nm) and strong electron donation to Pt. XPS confirmed a 61.2% Pt° content in Pt/NPC-900, facilitating efficient methanol adsorption/activation. In alkaline media, Pt/NPC-900 delivered a record mass activity of 4687.5 mA mg −1 Pt - 4.36 × higher than Pt/PC—along with exceptional stability (79.6 % current retention after 500 cycles). In situ Raman spectroscopy revealed a non-CO pathway, circumventing poisoning intermediates. This work establishes a precise N-configuration engineering strategy to optimize MSI for next-generation DMFC catalysts. Graphical Schematic diagram for the preparation of N-doped carbon-supported Pt nanoparticles catalysts by chemical reduction method.By adjusting the roasting temperature, it is possible to control the proportion of different N-configuration distributions. This enables effective control of the dispersion degree and electronic properties of the active metal Pt, thereby enhancing the activity and stability of the catalyst during the alkaline methanol oxidation reaction.
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高影响因子
FOOD RESEARCH INTERNATIONAL
·
2025
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IF 8
Mengqiong Wang,Baifei Hu,Jimin Ni,Kun Liu,Shuanggui Tian,Junping Zheng,Songlin Liu,Hongtao Liu
Functional constipation (FC) has become a prevalent gastrointestinal disorder worldwide. Arctii Fructus , a plant used for both food and medicine, contains oils, dietary fiber and arctiin as its core components, which have been demonstrated to alleviate constipation. However, its underlying mechanisms remain unclear. This study evaluated the interventive effects of the water extract of Arctii Fructus (WAF) in constipated mice induced by loperamide. Integrated metabolomics and 16S rDNA sequencing revealed that WAF significantly reshaped the gut microbiota structure, regulated the plasma metabolic profile, and inhibited the glycerophospholipid metabolism pathway in constipated mice. MetOrigin analysis further indicated that microbiota-host interactions play a critical role in WAF-mediated constipation relief. Serum pharmacochemical analysis identified five WAF-dependent active components that were absorbed into the bloodstream following microbial transformation. Based on network pharmacology predictions, we proposed that WAF alleviates constipation by suppressing the NLRP3 inflammasome pathway. This mechanism was subsequently validated through assessment of the spleen index, histopathological examination of intestinal tissues, and detection of key protein expression in the NLRP3 signaling pathway. In conclusion, this study systematically elucidates the multi-dimensional mechanisms by which WAF alleviates functional constipation through the gut microbiota-metabolism-inflammation axis. These findings provide a solid scientific foundation for its development as a functional food to improve intestinal health.
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PubMed
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Yunxin Ai,Zhaoqi Zhu,Weijun Liu,Hanxue Sun,Jiyan Li,Rui Jiao,An Li
The development of high-performance flame-retardant materials with favorable thermal insulation properties is crucial for mitigating fire hazards and energy consumption in applications such as packaging and modern buildings. In this study, flame-retardant microcapsules (VUMF-APP) were synthesized via microencapsulation and electrostatic self-assembly with ammonium polyphosphate (APP) as the core, urea–melamine–formaldehyde (UMF) resin as the shell, and thermoelectric-responsive VO2 (M) as the functional outer layer. These microcapsules were incorporated into epoxy resin (EP) to enhance the composite’s (VUMF–APP–EP) thermal stability, flame retardancy, and intelligent early warning function. The VUMF–APP–EP composite exhibits notable thermal insulation performance with a thermal conductivity of 0.0117 W m–1 K–1. Compared to pristine EP, the composite shows reductions of 46.7% in peak heat release rate (pHRR) and 78.3% in total smoke production (TSP) and achieves a UL-94 V-0 rating, indicating its effective flame-retardant characteristics. Owing to the thermoelectric-responsive property of VO2 (M) decorated onto the microcapsules, the epoxy resin composite demonstrates an intelligent early warning function, triggering alerts before fire ignition while maintaining flame retardancy. This dual functionality contributes to timely fire prevention and the reduction of potential property damage and casualties.
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高影响因子
Small
·
2025
·
IF 12.1
Mohamed Nabeel Mattath,Yingying Lu,Ajith Manayil Parambil,Yan Gao,Tian-Ming Yao,Jing-Jing Li,Rui-Min Zang,Song Hu,Shuo Shi
Molecular information coding (MIC) involves biomolecules to encrypt and transmit messages, remains in its early stages of development. This work presents a versatile molecular integration framework and a proof-of-concept multi-level security system that combines Morse code, ASCII code, and Beale's cipher through molecular logic computing, using a molecular dye-oligonucleotide platform (single-stranded DNA, duplex DNA, stem-loop, and G-quadruplex (G-4) structures). This study demonstrates the integration of nanotechnology with crypto-steganographic methods to visualize and decipher codes, embedding elementary logic operations into molecular signal transduction. Additionally, a graphical user interface (GUI) is developed for classifying elementary logic gates using a decision tree algorithm, providing researchers with an accessible tool for rapid prediction. The Morse code-mediated strategy enables static key generation using dots, dashes, and intervals, and dynamic key generation through a polyalphabetic cipher framework. In parallel, ASCII-based logic gate operations facilitate multi-key decryption of decimal values to recover hidden information. Furthermore, a multilayered hybrid cryptographic technique combining Beale's cipher with Morse code implemented via a pangramic codebook, establishes an exceptionally resistant system against brute-force attacks. These methods provide insights into the evolution of communication and highlight the importance of encryption without relying on highly complex materials or sophisticated instruments.
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JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Huyan Shen,Fang Song,Yanyu Li,Hongjie Li,Yiyan Zhu,Shenming Zhu,Keryn Lian,Yao Li,Di Zhang
Pore structure modulation and heteroatom doping are two very important strategies for designing high performance porous carbon materials. Herein, we prepare nitrogen, oxygen and sulfur co-doped hierarchical porous carbon electrode by a scalable ZnO-KOH dual activation treatment of CMC-LS-urea aerogel (CMC: sodium carboxymethyl cellulose; LS: sodium lignosulfonate). The achieved porous carbon material possesses a high specific surface area (2898.2 m 2 g −1 ), hierarchical porous structure (V meso = 0.43 cm 3 g −1 , V micro = 0.93 cm 3 g −1 ) and rich heteroatom contents (O: 17.4 at%; N: 5.96 at% and S: 0.59 at%). The optimal sample demonstrates an exceptional specific capacitance of 342.5 F g −1 at the current density of 0.1 A g −1 and a high capacitance retention rate of 93.7 % after 30000 cycles in 6 M KOH electrolyte. Furthermore, the assembled symmetric capacitors exhibit a high energy density of 33 Wh kg −1 in 1 M TEABF 4 /AN organic electrolyte. This method also can be applied to other natural polymers precursors system for highly efficient and environmentally friendly energy storage.
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Journal of Functional Foods
·
2025
·
IF 4
Xiaoyu He,Yu Zhang,Haitian Fang,Ni Ma,Xueni Yan,Huabing Yang,Lu Cao,Lu Xu,Haiming Hu,Hongtao Liu
This study investigated the effects of Lactobacillus paracasei ( L. paracasei )-fermented Goji juice supernatant (FGS) on constipation. GC–MS data showed that the critical metabolites of FGS were nicotinamide, squalene, L-proline, melatonin, and sarcosine. FGS intervention significantly promoted intestinal peristalsis. Meanwhile, FGS ameliorated intestinal inflammation and mucosal barrier damage by inhibiting the expressions of pro-inflammatory factors (TNF-α, IL-1β, COX-2), promoting the expressions of Mucin 1, Mucin 3, ZO-1, AQP4, and ENac-γ. In addition, FGS treatment modulated gut microbiota composition, reduced the abundance of harmful bacteria ( Faecalibaculum , Bacteroides , Alloprevotella and Alistipes ), induced a bloom of probiotics, including Marvinbryantia , Eubacterium _ xylanophilum _group, Colidextribacter , and Candidatus _ Soleaferrea . Conclusively, this study demonstrated that FGS significantly reduced inflammatory response, prevented intestinal barrier damage, and modulated microbiota dysbiosis to improve constipation. Compared to unfermented Goji juice (UFGJ), FGS has shown a more effective anti-constipation effect, indicating that FGS could relieve constipation as a dietary therapeutic.
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高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Pin Hou,Jiaqi Yan,Xiaoyu Yang,Ridha Djellabi,Xinrui Ge,Xinyu Sun,Jianli Jia,Jianbing Wang
Metal-organic framework (MOF)-derived carbon-based electrodes have demonstrated outstanding capacitive deionization (CDI) performance, owing to their special structures and configurations. Developing novel low-cost controllable protocols to obtain highly efficient Nitrogen-doped carbon-derived MOFs is the most challenging factor to transfer widely the application of these materials at real world. This work aims to develop a low-cost one-step growth route to produce N-doped carbon (NGZC) utilizing N-doped graphene quantum dots (N-GQDs) and zeolitic imidazolate frameworks-8 (ZIF-8) as starting substrates. The surface chemistry, morphology and CDI performance of the as-synthesized NGZC electrode were investigated, compared with conventional materials. The authors found that the introduction of N-doped graphene quantum dots dramatically enhances the mesopore volume (0.742 cm 3 /g) and pyrrolic-N ratio (19.21 %) for NGZC. These improvements effectively shorten the electron and sodium ion transport paths which in turn facilitate the pseudocapacitive activity and charge transfer in NGZC. The specific capacitance and salt adsorption capacity were found to be 283.16 F/g and 17.86 mg/g, respectively, demonstrating superior values than commonly used electrodes. NGZC shows a high stability over 30 adsorption-desorption cycles with a capacity retention of 90 %. DFT results further demonstrate the pseudocapacitive superiority of pyrrolic-N to reinforce the Na + capture. This finding provides new insights into the design of an economical and controllable N-doped carbon electrode for efficient CDI desalination.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Shuai Li,Yuanshu Xiao,Jihan Wang,Pengyan Dai,Ying Wang,Hongyan Zhang,Guohua Shan,Lixia Jia
Structural color materials inspired by nature have garnered significant attention in textile dyeing and printing. However, most studies focus on eco-friendly fabric coloring, overlooking the functionality of structural colors. Designing intelligent structural color fabrics that integrate visual sensing and textile finishing technologies presents an ideal yet challenging research opportunity. Herein, a structural color fabric with photoelectric dual-signal outputs that mimics the skin of a chameleon is reported for smart wearable devices, and it is fabricated by integrating knitted fabric with conductive MXene materials and flexible photonic crystal films featuring a non-close-packed structure through thermal bonding, achieving visualized color variation and electrical signal outputs under mechanical strain. The prepared structural color fabric exhibits cyclic and sensitive changes in structural color ( GF f = 2.07) and relative resistance ( GF e = −1.45). It is worth mentioning that the MXene is introduced with two important functions: The primary function of the MXene pertains to the establishment of a conductive network, while the secondary function relates to the absorption of the scattered light produced by the photonic crystals. In addition, the black appearance of the conductive fabric is replaced by an adjustable structural color that serves the user’s aesthetic needs for the product. This work provides novel insights into the development of functional structural color fabrics and demonstrates the great promise of non-close-packed photonic crystals structural color materials for smart wearable applications.
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高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Lingling Li,Yingliang Feng,An Pei,Lihua Zhu,Weizhen Wang,Guang Li,Chengxiu Huang,Zhiqing Yang,Hengqiang Ye
Different atomic ratios of PtPd alloy nanoparticles (NPs) supported on carbon doping with nitrogen-NC (Pt x Pd y /NC) are successfully prepared to simultaneously enhance hydrogen evolution reaction (HER) and methanol oxidation reaction (MOR), in which Pt 5 Pd 5 /NC with an atomic ratio of 5:5 has the best performance. Pt 5 Pd 5 /NC exhibits a significantly reduced HER overpotential (12 mV@10 mA cm −2 ) and the mass activity (MA) for MOR is up to 6.85 A mg −1 PtPd , 11.61 and 34.25 times higher than that of commercial Pt/C (Pt/C-JM) and commercial Pd/C (Pd/C-JM), respectively. Remarkably, coupling boosted HER on the cathode with accelerated MOR on the anode, efficient H 2 generation is achieved. This two-electrode flow cell only requires a cell voltage of 1.100 V at 100 mA cm −2 and can be stably operated for >300 h at 1.960 V with impressive long-life stability. Such performance even outperforms that of (IrO 2 ) OER‖HER (Pt/C-JM) cell. Electrochemical in-situ Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis show that electronic effect is formed between N and PtPd and can oxidize the intermediate HCOO - at a lower potential (0.300 V), promote the desorption of the toxic intermediates and improve the catalytic property.
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高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Lingling Li,Mingli Ouyang,Lihua Zhu,Yingliang Feng,An Pei,Guang Li,Tongxiang Liang
Investigating how rare earth elements optimize the surface electronic states of noble metal-based electrocatalysts to enhance catalytic activity is of great importance, however, relevant studies on these reactions are significantly lacking. This study reports the synthesis of PdRE/C (RE = La, Nd, or Dy) catalysts and evaluated for methanol oxidation reaction (MOR) and ethanol oxidation reaction (EOR). PdLa/C exhibits superior catalytic activity, with a mass activity (MA) of 2.28 A mgPd-¹ for MOR, outperforming PdNd/C, PdDy/C, and commercial Pd/C-JM with a high stability retention of 95.6%. For EOR, PdLa/C achieves a MA of 5.67 A mgPd-¹, 31.5 times higher than Pd/C-JM. The results show that RE doping has reduced the electronic density of Pd and attenuated CO* adsorption at Pd sites, RE2O3 can improve the dispersion of Pd nanoparticles (NPs) and expose more catalytically active sites, and the optimal performance of PdLa/C is attributed to the strongest electronic synergism of Pd-La2O3. In addition, in-situ Fourier transform infrared (FT-IR) shows that PdLa/C has enhanced ethanol adsorption and C-C bond cleavage and improved CO₂ selectivity.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Miao Wang,Chen Mou,Kai Wang,Wenjun Wang,Zhenyue Zhang,Ruan Chi
The rapid development of electrical vehicle urgently requires high-performance Li-ion battery that can operate over a wide temperature range. Herein, disodium hydrogen phosphate dodecahydrate encapsulated with silica were embedded to polyvinylidene fluoride as DHPD@SiO 2 /PVDF (DSP) membrane. The DSP based cell exhibited superior average discharge capacity (132 mAhg −1 ) and coulombic efficiency (96%) under room temperature as the silica shell in nanocapsules could enhance electrolyte affinity, separator porosity and mechanical strength to reduce interfacial resistance and increase Li-ion conductivity. Furthermore, the DSP membrane is leakage-proof with a comparable latent heat due to the synergistic effect between porous silica and hydrophobic PVDF. When battery discharged in cold environment, heat release from hydrate salt solidification could mitigate the damage to alleviate discharge capacity degradation by 57.7%. The present design of separator that integrating electrochemical properties promotion and low-temperature thermal management provides a novel and efficient strategy to enhance wide-temperature-range performance of battery.
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高影响因子
危险品化学品经营许可证（带存储）