Joule
·
2024
·
IF 38.6
Yige Guo,Shuo Wang,Rongtan Li,Jingcheng Yu,Xiaomin Zhang,Mingrun Li,Xusheng Zheng,Junfa Zhu,Yuefeng Song,Guoxiong Wang,Xinhe Bao
Replacing the sluggish oxygen evolution reaction with a favorable methane (CH 4 ) reforming reaction at the anode of solid oxide electrolysis cells (SOECs) can greatly reduce the electrical demand for CO 2 electroreduction at the cathode. However, the perovskite anode always displays limited activity and stability for CH 4 reforming. Herein, through fine-tuning of the average exsolution energy of the B-site components, high-density CoFe alloy nanoparticles are exsolved on the surface of La 0.6 Sr 0.4 Ti 0.3 Fe 0.5 Co 0.2 O 3-δ (LSTFC2) anode after reduction, which shows superior anodic CH 4 reforming performance, with a CH 4 conversion of 86.9% and CO selectivity of 90.1% at 800°C. Moreover, stable operation over 1,250 h with a CO selectivity above 95% is achieved. The electrical energy consumption for CO production decreases from 3.46 kWh m −3 for conventional SOECs to 0.31 kWh m −3 for CH 4 -assisted SOECs. This work provides an efficient strategy to thermodynamically boost the cathodic CO 2 electroreduction performance and simultaneously convert CH 4 to syngas at the anode.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Baolei Li,Qingsong Cai,Jianmin Zhang,Kai Zhang,Zongmin Zheng
The lithium metal batteries (LMBs) using Li metal as the anode are becoming one of the representatives of next-generation high-energy–density batteries. However, uneven deposition and stripping of Li usually cause capacity loss during cycling. To address these issues, NO 3 − intercalated LiAl layered double hydroxides (LiAl-LDHs) nanosheets were used as novel solid additives for conventional carbonate electrolytes. The abundant Li + transport pathways brought by LiAl-LDHs and the interlayer NO 3 − in LiAl-LDHs are beneficial to the uniform concentration distribution of Li + and high-quality solid electrolyte interface (SEI), thereby achieving stable deposition/stripping of Li. The assembled Li||Li symmetric cell was cycled stably for 500 h at a current density of 0.5 mA cm −2 . The Li||LFP(LiFePO 4 ) full cell had a capacity retention of 90 % after 800 cycles at 1C. Even at a high operating temperature of 50 °C, the Li||Li symmetric cells and Li||LFP full cells can still obtain steady charging-discharging performances.
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Plants-Basel
·
2025
·Vol. 14
·期 2
·260
·
IF 4.1
Wenli Wang,Xiaogui Zhou,Qiang Hu,Qiuhong Wang,Yanjun Zhou,Jingbo Yu,Shibei Ge,Lan Zhang,Huawei Guo,Meijun Tang,Xin Li
Tambocerus elongatus(Shen) (Hemiptera: Cicadellidae) is a devastating insect pest species ofCamellia sinensis, significantly affecting the yield and quality of tea. Due to growing concerns over the irrational use of insecticides and associated food safety, it is crucial to better understand the innate resistance mechanism of tea trees toT. elongatus. This study aims to explore the responses of tea trees to different levels ofT. elongatusinfestation. We first focused on the primary metabolism and found that the amino acid levels decreased significantly with increasingT. elongatusinfestation, while sugar accumulation showed an opposite trend. Moreover, secondary metabolite analysis showed a significant increase in flavonoid compounds and lignin content afterT. elongatusinfestation. Metabolomics analysis of the flavonoid compounds revealed a decrease in the proanthocyanidin level and an increase in anthocyanidin glycosides (anthocyanins and their derivatives) afterT. elongatusinfestation.T. elongatusinfestation also caused a decrease in the abundance of non-ester catechins and an increase in the abundance of ester catechins. Furthermore, the gene expression analysis revealed that transcripts of genes involved in flavonoid biosynthesis, such asCsCHI,CsF3H,CsF3′H,CsFNS,CsFLS, andCsUFGT, were down-regulated, while genes involved in the lignin pathway were up-regulated by insect infestation, suggesting that lignin probably plays a pivotal role in tea plant response toT. elongatusinfestation. Analysis of the expression of related genes indicates that the jasmonate (JA) pathway primarily responds to leafhopper damage. These findings suggest that the lignin pathway and JA play a preferential role in tea plant response toT. elongatus. Furthermore, the production of saccharides and the accumulation of anthocyanin glycosides in the flavonoid metabolic pathway are critical during this stress response. Further exploration of the roles of anthocyanin glycosides and lignin in tea tree resistance could provide a theoretical basis for understanding the defense mechanism of tea trees againstT. elongatusdamage.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Yuechao Zhao,Junqi Li,Hongyu Li,Lijia Zhang,Fengshi Deng,Abdulhakeem S. Alamri,Majid Alhomrani,Fahad Al-Asmari,Wenjuan Wu,Yuntao Liu,Zhen Zeng
Lentinus edodes is widely cultivated and utilized globally, and Lentinus edodes polysaccharides (LEPs) are recognized as its primary bioactive components. However, the influence of regional variations LEPs has not yet been elucidated. This study aimed to investigate the differences in the and activity of LEPs from various sources following simulated in vitro digestion, as well as their impact on gut microbes. Our work demonstrated that while the three LEPs were partially digested during digestion progress, yet their structural integrity remained largely unchanged. These LEPs exhibited variations in the monosaccharide molar ratios and molecular weights (Mw), which contributed to differences in their biological activities. Furthermore, the three LEPs were found to promote the growth of Megasphaera and Bacteroides and enhance the production of short-chain fatty acids (SCFAs). Finally, we investigated the correlations between monosaccharide composition, SCFAs, and the growth of gut microbes. Taken together, these results provide important insights into the regional characteristics of LEPs, supporting their personalized application in various contexts.
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高影响因子
Foods
·
2024
·Vol. 13
·期 18
·3019
·
IF 4.7
Yutong Li,Shangkun Li,Di Li,Yuan Gao,Shuhua Kong,Jingyi Liu,Shu Liu,Yichao Ma,Hui Zhou,Dandan Ren,Qiukuan Wang,Yunhai He
In this study, a quantitative method based on fluorescein isothiocyanate (FITC)-labelledHizikia fusiformepolyphenol–polysaccharide complex (HPC) and its purified fractions (PC1, PC4) was used, and its pharmacokinetics and tissue distribution were investigated in mice. The results showed that the FITC-labelled method had good linearity (R2> 0.99), intra-day and inter-day precision (RSD, %) consistently lower than 15%, recovery (93.19–106.54%), and stability (RSD < 15%), which met the basic criteria for pharmacokinetic studies. The pharmacokinetic and tissue distribution results in mice after administration showed that all three sample groups could enter the blood circulation. and HPC-FITC had a longer half-life (T1/2: 26.92 ± 0.76 h) and mean retention time (MRT0–∞: 36.48 h) due to its larger molecular weight. The three groups of samples could be absorbed by the organism in a short time (0.5 h) mainly in the stomach and intestine; the samples could be detected in the urine after 2 h of administration indicating strong renal uptake, and faecal excretion reached its maximum at 12 h. The samples were also detected in the urine after 2 h of administration. This study provides some theoretical basis for the tissue distribution pattern of polyphenol–polysaccharide complex.
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Journal of Energy Chemistry
·
2025
·
IF 14.9
Jing Gao,Qitao Liu,Haotian Wang,Muhammad Bilal Akbar,Zhihua Wu,Jiabo Le,Jianming Li,Qinglu Liu,Yongbo Kuang
CuBi 2 O 4 (CBO) photocathodes hold significant promise for efficient photoelectrochemical (PEC) water splitting due to their favorable band gap and theoretical onset potential. However, their practical application is hindered by poor charge separation efficiency. Herein, we introduce a characteristic in-situ solution Fe-doping strategy that markedly improves photoelectrochemical performance of CBO, doubling the photocurrent density and achieving an unprecedented 190 mV anodic shift in the onset potential. By integrating with an electrochemical oxidation post-treatment, a record incident photon-to-current efficiency (IPCE) exceeding 40% at 0.6 V vs. RHE under visible light illumination is achieved. The versatility of the doping strategy is demonstrated across CBO photocathodes synthesized by different methods with various morphologies, grain sizes, and crystallinities. Mechanistic studies reveal that the gradient distribution of Fe 3+ ions generates an internal electric field that facilitates efficient charge separation and increases acceptor density. The strong Fe–O bonding also enhances structural stability against photo-induced corrosion. Notably, our investigation uncovers the non-temperature-dependent nature of CBO photocurrent, indicating that PEC performance enhancement primarily depends on reducing carrier recombination rather than improving bulk conductivity. This work lays the groundwork for future advancements in water splitting performance of CBO photocathodes, offering a complementary strategy to conventional methods for enhancing charge separation efficiency.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Keying Hua,Yongjia Shi,Miaomiao Tang,Xiangyu Zuo,Jun Gao,Xia Zhang
Water-based lubricants are essential in the field of tribology , and the application of nanoparticles as additives in water-based lubricants shows promise and significant practical importance. In this study, water-soluble Cu nanoparticles modified with methoxypolyethyleneglycol xanthate long-chain polymers were fabricated by a in-situ surface modification method. The tribological behavior of the Cu nanoparticles synthesized as additives in a water-PEG system was evaluated using a universal micro-tribotester. It was found that the synthesized nanoparticles could be stably dispersed in the water-PEG system and could enhance the tribological properties and load-carrying capacity of the system significantly. For example, the coefficient of friction could be reduced to 0.052, and the P B value increased to 588 N when the Cu nanoparticles were added at a mass fraction of 1.5 %. This was mainly attributed to the formation of a boundary lubrication film consisting of Cu, Fe 2 O 3 , Fe 2 (SO 4 ) 3 , and FeS throughout the entire friction process. The boundary film effectively prevents direct contact between the friction surfaces, thereby improving the tribological properties. The incorporation of Cu nanoparticles as additives into commercial cutting fluids resulted in a lower coefficient of friction and significantly enhanced the extreme pressure performance of the cutting fluids, demonstrating promising application prospects.
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Journal of Building Engineering
·
2024
·
IF 6.7
Xianle Hua,Kailu Han,Zhihao Lin,Bing Yin,Pan Wang,Dongmei Qi,Dongshuai Hou,Jizhou Chen
Due to its inherent brittleness and heterogeneity, high performance cement-based materials continue to be a challenge. An enhancing cement-based composite is prepared based on polymer-fiber synergies, combining the structure design and toughening strategy of the dual organic networks. Crucially, the modification is performed by in-situ polymerization of acrylamide and synergies with fiber. The mechanical properties of the composite are significantly improved, such as flexural strength and toughness. Incorporating 4 wt% polymers and 1.75 vol% fibers, this approach shows that the remarkable flexural strength is increased by 151.7 %. And the brittle fracture of conventional cement-based materials is transformed into a distinct ductile fracture . The composite has obvious performance advantages over the single reinforcing material. Further, the dual network and synergistic modification mechanisms are revealed by microscopic characterizations. On the one hand, through structural design, in-situ polymers and fibers promote the formation of an interwoven dual network. On the other hand, the bonding interaction between polymers, fibers, and hydration products is confirmed by the experimental results, including hydrogen bonding and carboxyl-metal ion bonding, facilitating the formation of an interwoven and tightly integrated polymer-fiber ductile organic network. In addition, the bonding interaction establishes an efficient energy dissipation mechanism to enhance the bonding properties between fibers and hydration products significantly. Notably, in-situ polymerization can in-situ modify the fiber surface's interfacial structure, improving pore size distribution. The dual network structure and toughening strategy based on in-situ polymerization provide a viable and promising instance for manufacturing high-toughness cement-based composites and in-situ microstructure design.
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MOLECULES
·
2024
·Vol. 29
·期 18
·4461
·
IF 4.2
Yiling Quan,Changhao Hu,Peifeng Feng,Yujie Song,Kun Liang,Xigao Jian,Jian Xu
Polymer-derived silicon oxycarbide (SiOC) ceramics have garnered significant attention as novel silicon-based anode materials. However, the low conductivity of SiOC ceramics is a limiting factor, reducing both their rate capability and cycling stability. Therefore, controlling the free carbon content and its degree of graphitization within SiOC is crucial for determining battery performance. In this study, we regulated the free carbon content using divinylbenzene (DVB) and controlled the graphitization of free carbon with the transition metal iron (Fe). Through a simple pyrolysis process, we synthesized SiOC ceramic materials (CF) and investigated the impact of Fe-induced changes in the carbon phase and the amorphous SiOC phase on the comprehensive electrochemical performance. The results demonstrated that increasing the DVB content in the SiOC precursor enhanced the free carbon content, while the addition of Fe promoted the graphitization of free carbon and induced the formation of carbon nanotubes (CNTs). The electrochemical performance results showed that the CF electrode material exhibited a high reversible capacity of approximately 1154.05 mAh g−1at a low current density of 100 mA g−1and maintained good rate capability and cycling stability after 1000 cycles at a high current density of 2000 mA g−1.
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BRAIN RESEARCH
·
2024
·
IF 2.7
Zhu Wang,Bowen Li,Jingrui Yang,Ying Gao,Liu Gao,Qiang Jia,Li Yu,Yunzhi Ling
The aim of this study was to examine the effects of ML365, a two-pore potassium channel (K2P) inhibitor, on postoperative cognitive impairment (POCD). A mouse model of POCD was constructed by subjecting aged C57BL/6 mice to exploratory laparotomy. Changes in cognitive function were assessed using the Morris water maze test. Western blotting and qPCR were used to detect hippocampal NLRP3, Caspase-1 and IL-1β expression levels on days 3 and 7 post-surgery. Apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) expression level was also assessed by western blotting. Pathological changes and nerve damage in the hippocampal CA1 and CA3 regions were detected by H&E staining, while the concentration of malondialdehyde (MDA) in the plasma was measured. We found that pretreatment with ML365 (administered intraperitoneally at a dose of 10 mg/kg) 30 min prior to exploratory laparotomy effectively ameliorated POCD in mice. ML365 pretreatment also reduced NLRP3, Caspase-1, ASC and IL-1β expression levels in the hippocampus, improved POCD-induced pathological changes in the hippocampal CA1 and CA3 areas of aged mice, and decreased levels of plasma MDA and oxidative stress. Together, our findings indicate that ML365 can alleviate POCD in mice by inhibiting NLRP3 inflammasome activation in the hippocampus.
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CHEMISTRY OF MATERIALS
·
2024
·
IF 7.2
Longhai Zhang,Yingjie Deng,Jiaxi Zhang,Weiquan Tan,Liming Wang,Li Du,Huiyu Song,Shijun Liao,Dai Dang,Shuhui Sun,Zhiming Cui
Tuning surface strain has been proven to be an efficient strategy for improving the kinetics of the oxygen reduction reaction of Pt–M electrocatalysts (M = non-noble metals). However, it remains a grand challenge to achieve optimal compressive strain, particularly on a platform of low-Pt nanocrystals. Herein, we report a novel approach involving the partial substitution of a Pt site with Ga, resulting in the development of a high-performance L10-type Pt0.8Ga0.2Co intermetallic catalyst. The incorporation of Ga not only fine-tunes the surface strain to approach the optimum region of the theoretical volcano plot but also facilitates the formation of a more stable intermetallic structure dynamically. This enhancement significantly improves long-term electrochemical durability. Pt0.8Ga0.2Co/C exhibits a markedly improved intrinsic activity of 3.39 mA cm–2 and, more importantly, a high mass activity of 0.77 A mgPt–1 at 0.90 V in a fuel cell, surpassing the performance of most previously reported L10 Pt-based intermetallics. Notably, catalytic durability is confirmed through only 28% mass activity loss after 30,000 potential cycles (vs 40% loss for the DOE target). This work paves the way for the development of promising low-Pt electrocatalysts for efficient energy conversion devices.
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SENSORS AND ACTUATORS B-CHEMICAL
·
2018
·
IF 5.667
Jing Li,Wenyu Xie,Rong Shao,Xionghua Ju,Hongbo Li
The development of cost-effective and highly sensitive SO 2 sensors is an urgent task since SO 2 causes worldwide serious environmental security and human diseases. Herein, a first photoelectrochemical (PEC) sensing platform for SO 2 was constructed based on Ba 2+ doped amorphous TiO 2 hollow spheres. They were successfully prepared by SiO 2 template method before in situ Ba 2+ ions exchanging and doping. Before assay, SO 2 was oxidized by hydrogen peroxide and generated H 2 SO 4 , which was further neutralized by NaOH resulting in the generation of Na 2 SO 4 . When it reacted with Ba 2+ -doped TiO 2 hollow spheres, the produced BaSO 4 nanoparticles leaded to the photocurrent remarkably decreased due to the photo-induced electron pathways shut down. The fabricated PEC sensor was linear with the concentration of SO 4 2− in the range from 1 to 4000 pmol L −1 with a detection limit of 0.4 pmol L −1 . The other conventional species did not interfere in the detection of SO 4 2− in aqueous system and the fabricated PEC sensor was successfully applied in monitoring of SO 2 in industry waste gas. It demonstrated good performance including wide dynamic linear range, high selectivity, ultrasensitivity, excellent stability and low cost. This strategy paves a new way for other similar air pollutants.
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