JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Yi Gan,Youzhi Cen,Junchen Li,Xinyue Li,Keming Hu,Xiangyu Luo,Liwen Hu,Yang Song,Liangying Wen
Developing efficient and low-cost non-precious metal electrocatalysts for the alkaline HER is crucial for green hydrogen production. Nickel-rich phosphides (Ni 12 P 5 ) offer high conductivity but suffer from strong hydrogen adsorption, limiting their activity. This work presents a V doping strategy to directly modulate the electronic structure of pure-phase Ni 12 P 5 . V doping induces lattice distortion and drives the formation of a hierarchical porous nanoflower morphology, increasing the active surface area. More importantly, it optimizes the ΔG H* by downshifting the Ni d-band center and reduces the water dissociation barrier, enhancing intrinsic activity. The resulting V-Ni 12 P 5 /NF exhibits outstanding HER performance in 1 M KOH, with low overpotentials of 81 and 117 mV at 10 and 100 mA cm −2 , a Tafel slope of 60 dec −1 , and remarkable stability for over 230 h. This work demonstrates that rational heteroatom doping is an effective strategy for designing high-performance, stable, and cost-effective HER electrocatalysts.
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DOI
高影响因子
RARE METALS
·
2023
·Vol. 42
·期 12
·3985-3992
·
IF 8.8
Yang Yang,Liang Qing-Rong,Zhu Chun-Li,Zheng Guo-Zhong,Zhang Jian,Zheng Shou-Jun,Lin Yung-Chang,Zheng De-Zhi,Zhou Jia-Dong
Van der Waals coupling with different stacking configurations can significantly affect the optical and electronic properties of ultrathin two-dimensional (2D) materials, which is an effective way to tune device performance. Herein, we report a salt-assisted chemical vapor deposition method for the synthesis of bilayer V-doped MoS 2 with 2H and 3R phases, which are demonstrated by the second harmonic generation and scanning transmission electron microscopy. Notably, the mobility of the 3R phase V-doped MoS 2 is 6.2% higher than that of the 2H phase. Through first-principles calculations, we further reveal that this particular behavior is attributed to the stronger interlayer coupling of 3R compared to the 2H stacking configuration. This research can be further generalized to other transition metal chalcogenides and will contribute to the development of electronic devices based on 2D materials in the future.
研究领域:
材料科学
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纳米科技
·
凝聚态物理
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二维材料
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半导体材料
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表面科学
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计算材料学
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DOI
高影响因子
JOURNAL OF ETHNOPHARMACOLOGY
·
2025
·
IF 5.4
Yan-Ling Qian,Bang-Yin Tan,Shi-Shi Qin,Xian-Run Wu,Zhuo-Qi Shi,Yun-Li Zhao,Xiao-Dong Luo
Ethnopharmacological relevance Crotalari a assamica Benth, one of the folk medicinal plants in the "Dai" of China, is commonly used to treat liver and bile related diseases. However, its bioactive compounds and the mechanism related to traditional use remain unclear. Aim of the study To investigate the protective compounds and mechanism of C . assamica on drug-induced liver injury. Materials and methods The acetaminophen (APAP)-induced mice and cell model were carried out to reveal the liver protection of the extract of C . assamica (ECA) and bioactive compounds in vitro and in vivo . The protective pathway was explored using transcriptome analysis, and binding targets were predicted by structure-based binding prediction and dynamic simulation, which were further supported by qPCR and Western Blot experiments on the livers of treated mice. Results ECA reduced the contents of serum lactate dehydrogenase, aspartate transaminase, and alanine transaminase significantly, adjusted the oxidative indices of serum and liver tissues, and ameliorated inflammation and necrosis of liver tissues, as well as up-regulated expressions of NQO1, HO-1, Nrf2, p-AKT, BCL-2, AKT, and IL-6 in vivo . Moreover, its bioactive compound sarosiensin V increased the viability of APAP-induced HepG2 cells, and restored liver function activity, accompanied by enhanced antioxidation and mitochondrial membrane potential significantly. Conclusion C. assamica and its bioactive compound sarosiensin V inhibited oxidative stress, inflammation, apoptosis and necrosis of liver tissues, which was associated with the upregulation of the Nrf2 pathway, and then supporting its traditional use for liver protection.
研究领域:
药理学
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肝脏病学
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分子生物学
·
天然产物化学
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氧化应激
·
药物代谢
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产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2020
·
IF 6.215
Peng Zhou,Xingshuai Lv,Yugang Gao,Zhong Liang,Yuanyuan Liu,Zeyan Wang,Peng Wang,Zhaoke Zheng,Ying Dai,Baibiao Huang
Recently, Ni x Mo y N materials attach much attention in the field of electrocatalytic hydrogen evolution due to their good performance and high stability. However, most of the reports on Ni x Mo y N materials are Ni 0·2 Mo 0·8 N, and there are few reports on Ni 2 Mo 3 N. In fact, as one member of the Ni x Mo y N materials, Ni 2 Mo 3 N also has rich electronic properties and high electrical conductivity. Herein, we report the novel Ni 2 Mo 3 N and compare it to the traditional Ni 0·2 Mo 0.8 N. The results show that the Ni 2 Mo 3 N exhibits better performance than the Ni 0·2 Mo 0·8 N which means that it has great research potential in the field of hydrogen evolution. In order to further improve its catalytic performance, we regulate its electronic structure by V doping (V–Ni 2 Mo 3 N). The V–Ni 2 Mo 3 N material exhibits lower overpotential (54 mV at 10 mA cm −2 ) and outstanding stability. According to the theoretical calculation, the reason why the material exhibits superior performance is that V doping optimizes the chemical adsorption and bonding ability of the material to water molecule and reaction intermediate H, improves the electrical conductivity of the material.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
Journal of Environmental Sciences
·
2022
·
IF 6.796
Zhihui Lv,Guangzhi He,Wenshuo Zhang,Jingjing Liu,Zhihua Lian,Yang Yang,Zidi Yan,Guangyan Xu,Wenpo Shan,Yunbo Yu,Hong He
TiO 2 -supported V 2 O 5 catalysts are commonly used in NO x reduction with ammonia due to their robust catalytic performance. Over these catalysts, it is generally considered that the active species are mainly derived from the vanadia species rather than the intrinsic structure of V-O-Ti entities, namely the interface sites. To reveal the role of V-O-Ti entities in NH 3 -SCR, herein, we prepared TiO 2 /V 2 O 5 catalysts and demonstrated that V-O-Ti entities were more active for NO x reduction under wet conditions than the V sites (V=O) working alone. On the V-O-Ti entities, kinetic measurements and first principles calculations revealed that NH 3 activation exhibited a much lower energy barrier than that on V=O sites. Under wet conditions, the V-O-Ti interface significantly inhibited the transformation of V=O to V-OH sites thus benefiting NH 3 activation. Under wet conditions, meanwhile, the migration of NH 4 + from Ti site neighboring the V-O-Ti interface to Ti site of the V-O-Ti interface was exothermic; thus, V-O-Ti entities together with neighboring Ti sites could serve as channels linking NH 3 pool and active centers for activation of NH 4 + . This finding reveals that the V-O-Ti interface sites on V-based catalysts play a crucial role in NO x removal under realistic conditions, providing a new perspective on NH 3 -SCR mechanism.
研究领域:
催化化学
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环境科学
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Yinghao Xue,Wei Teng,Yanyan Chen,Qian Ma,Xiaoqian Chen,Yu Sun,Jianwei Fan,Yuping Qiu,Rongbing Fu
Simultaneous removal of cation (e.g., Pb(Ⅱ), Cd(Ⅱ)) and oxyanion (e.g., As(Ⅴ)) heavy metals have attracted increasing interest for adsorption applications due to the complexity of heavy metal polluted groundwater. Manganese-lanthanum binary oxides immobilized on hydrothermal carbonization carbon (Mn x La 1-x @HTCC) were therefore rationally designed in this work, and the Mn-La oxides immobilized on HTCC exhibited more uniform dispersion compared to bulk phase. In single adsorption systems, superior adsorption of different heavy metals could be achieved by tuning the molar ratio of Mn to La, and Mn leaching was reduced by ∼ 75% compared with Mn@HTCC (without La doping). In the coexisting systems, the simultaneous presence of As(Ⅴ) and Pb(Ⅱ) greatly enhanced adsorption of both two heavy metals, while competition was observed in the coexistence of As(Ⅴ) and Cd(Ⅱ). By analyzing the “release-readsorption” phenomenon of Mn and the variation of Mn valence during adsorption, the different roles of Mn species in the removal of three heavy metals were proposed. Finally, high-speed flow adsorption column experiments confirmed that the Mn x La 1-x @HTCC composite can effectively and continuously adsorb heavy metals accompanied by trace Mn leaching content. Overall, this study indicates the potential of Mn-La carbon composites as a novel adsorbent in groundwater remediation.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
Foods
·
2023
·Vol. 12
·期 19
·3658
·
IF 5.2
Wenxiu Zhu,Jiaxiu Liu,Yue Zou,Shugang Li,Dongyun Zhao,Haisong Wang,Xiaodong Xia
Vibrio parahaemolyticusis a primary seafood-associated pathogen that could cause gastroenteritis. It can attach to various surfaces and form a biofilm, which poses serious threats to food safety. Hence, an effective strategy is urgently needed to control the biofilm formation ofV. parahaemolyticus. Laurel essential oil (LEO) is used in food, pharmaceutical and other industries, and is commonly used as a flavoring agent and valuable spice in food industries. The potential antibiofilm effects of LEO againstV. parahaemolyticuswere examined in this study. LEO obviously reduced biofilm biomass at subinhibitory concentrations (SICs). It decreased the metabolic activity and viability of biofilm cells. Microscopic images and Raman spectrum indicted that LEO interfered with the structure and biochemical compositions of biofilms. Moreover, it also impaired swimming motility, decreased hydrophobicity, inhibited auto-aggregation and reduced attachment to different food-contact surfaces. RT-qPCR revealed that LEO significantly downregulated transcription levels of biofilm-associated genes ofV. parahaemolyticus. These findings demonstrate that LEO could be potentially developed as an antibiofilm strategy to controlV. parahaemolyticusbiofilms in food industries.Keywords:V. parahaemolyticus;laurel essential oil;biofilm formation;gene expression;motility
研究领域:
食品安全
·
微生物学
·
药学
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产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Junjun Lv,Panpan Liu,Rushuo Li,Linmeng Wang,Kaiyue Zhang,Peiyun Zhou,Xiubing Huang,Ge Wang
A series of self-supported electrocatalysts composed of tri-metallic CoFeV-LDHs generated on conductive carbon cloth (denoted as CoFeV@CC) have been constructed. The specific interaction among Co, Fe and V is systematically revealed via tuning the molar ratios of M 2+ :M 3+ and Fe 3+ :V 3+ in these tri-metallic LDHs. Finally, the optimal synergistic effect is reached when the molar ratios of M 2+ :M 3+ and Fe 3+ :V 3+ are respectively 4:1 and 1:1, resulting in the product named Co 8 FeV@CC, which displays the best overall OER and HER performance. Only rather low overpotentials of 235 and 182 mV are required to attain the current density of 100 mA cm −2 with a Faradaic efficiency of nearly 100 % for OER and HER, respectively. Co 8 FeV@CC can thus be applied as both an anode and cathode in the symmetrical two-electrode and possesses a current density of 100 mA cm −2 at the cell voltage of 1.65 V, and further demonstrates ultra-high stability for 100 h.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
Journal of Water Process Engineering
·
2024
·
IF 6.3
Weimin Chen,Renjian Deng,Yilin Chen,Chuang Wang,Baolin Hou,Saijun Zhou,Andrew Hursthouse
Arsenic and antimony removal technology have received significant attention due to their considerable danger to aquatic ecosystems. In this study, we designed HCO–(Fe 3 O 4 ) x adsorbents with substantial functional groups, ample pore spaces, and considerable surface area , specially tailored for the simultaneous adsorption of pentavalent arsenic (As( V )) and pentavalent antimony (Sb(V)). The adsorption performance of HCO–(Fe 3 O 4 ) x was subjected variably to the Ce/Fe molar ratio (CFMR), solution pH, and co-existing anions (SO 4 2− , PO 4 3− , SiO 3 2− ). The affinity order of As(V) and Sb(V) onto HCO–(Fe 3 O 4 ) x in binary systems was pH-dependent. At a pH of 2.0, Sb( V ) exhibited stronger adsorption than As(V), whereas the opposite trend occurred at pH levels above 4.0. Analysis of the kinetic data revealed the pseudo-second-order kinetic model was the most appropriate, indicating that chemical adsorption was the predominant mechanism. Notably, the formation of inner-sphere complexes led to a higher adsorption rate for As( V ) compared to Sb(V), attributed to a lower energy barrier of 0.863 eV, facilitating the breakdown of the Fe O bond in As(V)'s asymmetric tetrahedral structure. Various analyses (FTIR, XRD, and XPS) demonstrated that adsorption mechanisms involved multiple processes like hydrogen bonding , ligand exchange, electrostatic attraction, and complexation. The primary contributions for the adsorption of As( V ) and Sb(V) were the inner-sphere complex of cerium , oxygen and arsenic atoms (Ce O As) and the outer-sphere complex of iron, oxygen and antimony atoms (Fe O Sb), respectively, indicating significant differences in the mechanisms. These findings underscored the potential of HCO–(Fe 3 O 4 ) x in mitigating As( V ) and Sb(V) water pollution, emphasizing its considerable promise as an effective remediation agent.
研究领域:
环境化学
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水污染治理
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吸附科学
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环境功能材料
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重金属去除
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DOI
高影响因子
DESALINATION
·
2025
·
IF 9.8
Peng Liu,Yanrui Liu,Hui Ruan,Yujue Wang,Fuqiu Ma,Mingbo Ji
Adsorption materials for treating radioactive wastewater must exhibit outstanding adsorption capabilities and robust mechanical, chemical, and radiation stability. In this study, amine-functionalized polyether ether ketone (NPEEK) was synthesized via a Schiff base reaction using a solvothermal method, demonstrating high uranium (U(VI)) adsorption performance. Specifically, NPEEK prepared at 125 °C for 12 h achieved a peak U(VI) adsorption capacity of 220.28 mg/g within 90 min at pH 5, maintaining good adsorption performance after five cycles of experiments. The successful modification of PEEK through ethylenediamine grafting was confirmed by various analyses including Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The adsorption process aligns well with pseudo-second-order kinetics, Langmuir, intra-particle diffusion, and liquid film diffusion models. It is predominantly governed by chemisorption and monolayer sorption, characterized as a spontaneous endothermic process. Density functional theory (DFT) calculations and molecular dynamics (MD) simulations were employed to elucidate the unique structure and adsorption mechanism from a structural viewpoint. Uranium adsorption occurs via coordination, electrostatic interactions, and intra-particle diffusion. In conclusion, this innovative PEEK-based composite has the potential to address the limitations of existing PEEK-based adsorption materials and emerge as a promising adsorbent for treating uranium(VI)-contaminated wastewater.
研究领域:
材料科学
·
环境科学
·
核化学
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产品关联
DOI
高影响因子
EMBO JOURNAL
·
2020
·Vol. 39
·期 5
·e101679
·
IF 9.889
Jun Wu,Wen-Jia Tian,Yang Liu,Huanhuan J Wang,Jiangli Zheng,Xin Wang,Han Pan,Ji Li,Junyu Luo,Xuerui Yang,Lester F Lau,H Troy Ghashghaei,Qin Shen
Adult neural stem cells (NSCs) reside in specialized niches, which hold a balanced number of NSCs, their progeny, and other cells. How niche capacity is regulated to contain a specific number of NSCs remains unclear. Here, we show that ependyma-derived matricellular protein CCN1 (cellular communication network factor 1) negatively regulates niche capacity and NSC number in the adult ventricular–subventricular zone (V-SVZ). Adult ependyma-specific deletion of Ccn1 transiently enhanced NSC proliferation and reduced neuronal differentiation in mice, increasing the numbers of NSCs and NSC units. Although proliferation of NSCs and neurogenesis seen in Ccn1 knockout mice eventually returned to normal, the expanded NSC pool was maintained in the V-SVZ until old age. Inhibition of EGFR signaling prevented expansion of the NSC population observed in CCN1 deficient mice. Thus, ependyma-derived CCN1 restricts NSC expansion in the adult brain to maintain the proper niche capacity of the V-SVZ.
研究领域:
神经科学
·
干细胞生物学
·
分子生物学
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DOI
PubMed
高影响因子
Environmental Technology & Innovation
·
2021
·
IF 5.263
Zhixu Lu,Xuezhu Li,Xianjin Qi
Most current arsenic(As(V)) removal technologies are designed for low-As(V) wastewater. Consequently, the efficacy of treating high-As(V) wastewater with these technologies is generally unsatisfactory. Here, the Cobalt(Co)-loaded resin removal of As(V) in wastewater and its mechanism are discussed. Rapid adsorption and a slow equilibrium were achieved during the reaction, and the As(V) removal efficiency exceeded 99% within 0–30 min with an initial As(V) concentration of 100 mg/L. The adsorption capacity of the Co-loaded resin was as high as 116 mg/g. The Co-loaded resin has the best As(V) removal efficiency when the pH = 8. The adsorption kinetics of the Co-loaded resin material revealed the adsorption behavior. FTIR and XPS studies showed that As(V) was removed on the Co-loaded resin material, and As(V) was primarily removal through ion exchange adsorption and chemical co-precipitation. Thus, this Co-loaded resin material provides a simple and effective means to remove As(V) from high-As(V) wastewater.
研究领域:
环境科学
·
化学工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）