ADVANCED MATERIALS
·
2020
·Vol. 32
·期 39
·2002382
·
IF 27.398
Changming Zhao,Gan Luo,Xiaokang Liu,Wei Zhang,Zhijun Li,Qian Xu,Qinghua Zhang,Huijuan Wang,Deming Li,Fangyao Zhou,Yunteng Qu,Xiao Han,Zezhou Zhu,Geng Wu,Jing Wang,Junfa Zhu,Tao Yao,Yafei Li,Henny J.M. Bouwmeester,Yuen Wu
Electrochemical reduction of CO to value-added products holds promise for storage of energy from renewable sources. Copper can convert CO into multi-carbon (C 2+ ) products during CO electroreduction. However, developing a Cu electrocatalyst with a high selectivity for CO reduction and desirable production rates for C 2+ products remains challenging. Herein, highly lattice-disordered Cu 3 N with abundant twin structures as a precursor electrocatalyst is examined for CO reduction. Through in situ activation during the CO reduction reaction (CORR) and concomitant release of nitrogen, the obtained metallic Cu° catalyst particles inherit the lattice dislocations present in the parent Cu 3 N lattice. The de-nitrified catalyst delivers an unprecedented C 2+ Faradaic efficiency of over 90% at a current density of 727 mA cm −2 in a flow cell system. Using a membrane electrode assembly (MEA) electrolyzer with a solid-state electrolyte (SSE), a 17.4 vol% ethylene stream and liquid streams with concentration of 1.45 m and 230 × 10 −3 m C 2+ products at the outlet of the cathode and SSE-containment layer are obtained.
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高影响因子
Advanced Energy Materials
·
2024
·
IF 24.4
Gaojing Yang,Yaxun Zhu,Zhimeng Hao,Qiu Zhang,Yong Lu,Zhenhua Yan,Jun Chen
Redox flow batteries (RFBs) are considered as promising candidates for large-scale energy storage. However, traditional RFBs based on toxic metal ions have deficiencies in resource utilization and environmental protection. Considering the corrosiveness of acidic and alkaline electrolytes and sustainability of energy storage devices, neutral aqueous organic redox flow batteries (AORFBs) have more development prospects. Herein, an AORFB is reported, using 9,10-anthraquinone-2,7-disulfonic salt (2,7-AQDS) and 1,4-dihydroxyphenylsulfonate potassium (HQS) as negative and positive electroactive materials, respectively. It is found that the anions in the neutral solution further affected the solubility and kinetics of the electroactive materials by affecting the hydrogen bond in the solution, and the Na 2 SO 4 solution showed the optimal comprehensive performance. Therefore, an all-quinone AORFB employing neutral Na 2 SO 4 electrolytes with a cell voltage of 0.9 V is constructed, which presented a capacity utilization of 70.1% and delivered stable cycling performance at 60 mA cm −2 . This work designs an innovative neutral all-quinone AORFB and points out how anions affect the properties of the electrolyte by affecting hydrogen bonds within the solution. These findings open a new avenue for the design and application of neutral all-organic aqueous RFBs.
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SusMat
·
2025
·
IF 21.3
Xuechun Hu,Yuchen Pang,Chaoqun Li,Xiaoyue Zhang,Xuebin Yu,Fang Fang,Guanglin Xia
Magnesium hydride (MgH 2 ) has been regarded as an attractive candidate for solid-state hydrogen storage, yet its practical applications are limited by the requirement of elevated temperatures and sluggish hydrogen uptake and release kinetics. Herein, TiO 2 polyhedral frameworks with uniformly distributed V 2 O 5 (denoted as V 2 O 5 /TiO 2 ) are constructed to improve hydrogen storage performance of Mg/MgH 2 . During the reversible hydrogenation and dehydrogenation process, metallic V and Ti along with low-valent Ti- and V-based oxides are in situ formed. Among them, metallic V supported on TiO 2 exhibits the lowest hydrogen adsorption energy, enabling superior catalytic performance over TiO 2 and V 2 O 5 . As a result, the peak dehydrogenation temperature of MgH 2 decreases to 215°C, 105°C lower than that of pristine MgH 2 , with a decrease of the apparent activation energy from 139.50 kJ·mol −1 to 68.99 kJ·mol −1 . Moreover, electron migration from V toward TiO 2 leads to charge accumulation around Ti and O atoms, shifting the V 3 d -band center toward the Fermi level and thereby improving the catalytic function of V's d-electrons, facilitating hydrogen dissociation without energy barriers. Therefore, the V 2 O 5 /TiO 2 -catalyzed Mg absorbs 4.12 wt% H 2 under an ultralow pressure of 1 bar at 25°C. This provides a new strategy for developing advanced Ti and V-based catalysts for mild-condition hydrogen storage of MgH 2 .
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PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2024
·
IF 2.9
Jianzhi Wang,Jie Yang,Fuhua Huang,Yuru Li,Yu Luo,Yanan Xue,Ning Cai,Hui Li,Faquan Yu
The design of efficient, stable and cost-effective electrocatalysts for hydrogen evolution reaction holds substantial significance in water electrolysis, but it remains challenging. Tremella-like nickel-molybdenum bimetal phosphide encapsulated cobalt phosphide (NiMoP/CoP) with hierarchical architectures have been effectively synthesized on nickel foam (NF) via a straightforward hydrothermal followed by a low-temperature phosphating method. Based on the unique structural benefits, it significantly increases the number of redox active centers, enhances the electrical conductivity of materials, diminishes ion diffusion path lengths, thereby promoting the efficient electrolyte penetration and reducing the inherent resistance. The as-obtained NiMoP/CoP/NF electrocatalyst exhibited remarkable catalytic activity with a ultralow overpotential of 38 mV (10 mA cm-2) and low Tafel of slope (83 mV dec-1). The straightforward synthesis process and exceptional electrocatalytic properties of NiMoP/CoP/NF demonstrate great potential for HER to replace the precious metal catalyst.
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高影响因子
Toxins
·
2022
·Vol. 14
·期 2
·93
·
IF 5.075
Hongmei Liu,Zhihong Xuan,Jin Ye,Jinnan Chen,Meng Wang,Stephan Freitag,Rudolf Krska,Zehuan Liu,Li Li,Yu Wu,Songxue Wang
An immunoaffinity magnetic beads (IMBs) based automatic pretreatment method was developed for the quantitative analysis of deoxynivalenol (DON) by ultra-performance liquid chromatography and ultraviolet detector (UPLC-UV). First, N-hydroxysuccinimide-terminated magnetic beads (NHS-MBs) with good magnetic responsivity and dispersibility were synthesized and characterized by optical microscopy, scanning electron microscopy (SEM), and laser diffraction-based particle size analyzer. Then, the amino groups of anti-DON monoclonal antibody (mAb) and the NHS groups of NHS-MBs were linked by covalent bonds to prepare IMB, without any activation reagent. The essential factors affecting the binding and elution of DON were meticulously tuned. Under optimal conditions, DON could be extracted from a real sample and eluted from IMB by water, enabling environmentally friendly and green analysis. Hence, there was no need for dilution or evaporation prior to UPLC-UV analysis. DON in 20 samples could be purified and concentrated within 30 min by the mycotoxin automated purification instrument (MAPI), allowing for automated, green, high-throughput and simple clean-up. Recoveries at four distinct spiking levels in corn and wheat ranged from 92.0% to 109.5% with good relative standard deviations (RSD, 2.1–7.0%). Comparing the test results of IAC and IMB in commercial samples demonstrated the reliability and superiority of IMB for quantitatively analyzing massive samples.Keywords:deoxynivalenol;immunoaffinity magnetic beads;automatic;UPLC-UVKey Contribution:An immunoaffinity magnetic beads-based automatic pretreatment method was developed for the quantitative analysis of deoxynivalenol by UPLC-UV, with water used as the solvent for extraction and elution.
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PubMed
高影响因子
ACS Omega
·
2019
·
IF 2.584
Chaochao Qu,Ji Wang,Hongyao Yin,Guangliang Lu,Zuyou Li,Yujun Feng
Foams are widely used to remove liquid loading at the bottom of gas wells to improve natural gas production. However, it becomes ineffective when a gas well contains a large amount of hydrocarbon condensate because oil will rupture the foams. In this work, condensate oil-tolerant foams were developed and stabilized by a mixture of cocamidopropyl hydroxyl sulfobetaine (CHSB) and sodium dodecyl sulfate (SDS). The foam properties are examined at different temperatures under atmospheric conditions and high pressures with various contents of condensate oil. It is found that the foam stability is improved when the oil content is increased; in addition, high temperature, high salinity, and high pressure are beneficial for foam stabilizing. To reveal the mechanism of stable foam in the presence of high content of oil, a confocal microscope was employed to visualize oil–foam interactions. It was observed that the high stability of the SDS–CHSB foams is ascribed to the formation of stable pseudoemulsion between oil droplets and the gas–liquid interface. Such condensate oil-tolerant foams show promising potential to be used in the foam-assisted lift process during natural gas production.
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高影响因子
POLYMER
·
2020
·
IF 4.231
Yi Wang,Zhenxing Cao,Changshu Ma,Rui Wu,Anji Du,Guangsu Huang,Jing Zheng,Jinrong Wu
The emerging soft electronics and robots are eagerly seeking for soft materials possessing not only comprehensive mechanical properties but also smart stimuli-responsive property, whose fabrication however remains a great challenge. Herein, we develop a series of high-performance smart hydrogels crosslinked and reinforced by an organic-inorganic hybridized crosslinker composed of multi-functional polymer adsorbed molybdenum disulfide (v-MoS 2 ). The multi-functional polymer is synthesized by grafting polyethyleneimine with multiple vinyl groups. Such molecular design enables it to serve as a surfactant to assist the exfoliation and stabilization of v-MoS 2 nanosheets through hydrophobic and electrostatic interactions , thereby forming the hybridized crosslinker to crosslink polyacrylamide (PAM) hydrogels through both chemical bonds and physical interactions. The crosslinking points can effectively transfer load between the molecular chains and v-MoS 2 , and moreover dissipate energy through hydrophobic and electrostatic interactions. Therefore, the hydrogels not only are mechanically robust with tensile strain up to 3500% and strength up to 645 kPa, but also show outstanding notch-insensitivity and anti-fatigue property. Combining with the photothermal effect of MoS 2 , robust biomimetic fish and butterfly with dual photoresponsivity and thermosensitivity are designed, which can well mimic the self-defense process of marine and terrestrial organisms under external stimulations.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2017
·Vol. 53
·期 3
·1623-1633
·
IF 2.599
Qiao Yujie,Liu Xuelong,Fu Gongbu,He Zhongyuan,Hou Chengyi,Li Yaogang,Zhang Qinghong,Yan Hexin,Wang Hongzhi
Nanofiber scaffolds are widely used as the platform for three-dimensional culture of hepatocytes in vitro. The pore size of scaffolds plays an important role in promoting the infiltration and proliferation of hepatocyte. We show that the average pore size of electrospun scaffold increases from ~ 7.6 to 13.2 μm, while the average fiber diameter decreases from ~ 2.0 to 1.5 μm when collected by probe array collectors. Though increase in pore size decreases the tensile stress of scaffolds, it leads to enhance the proliferation and attachment of hepatocytes. Specifically, a 6 × 6 array scaffold which was prepared by probe collector was orderly arrayed. Compared with the conventional scaffold, the pore size of the arrayed scaffold doubled and the hydrophilicity was improved. When HepG 2 cells were seeded on the arrayed scaffold, cells showed superior adhesion ability, better cell morphology and three-dimensional growth. These results indicated that the ordered 6 × 6 array scaffold has the potential as a suitable substratum for in vitro culture of hepatocytes.
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CLINICAL BIOCHEMISTRY
·
2020
·
IF 2.573
Tianhua Zhang,Xiaoyu Tang,Ling Mao,Jin Chen,Jie Kuang,Xin Guo,Danyan Xu,Daoquan Peng,Bilian Yu
Background The mechanism for an abnormal pattern of triglyceride (TG) metabolism in response to a meal still needs further investigation. Extensive pieces of evidence have shown that apolipoprotein CIII (apoCIII) is a critical modulator of plasma TG metabolism mostly by inhibiting the hydrolysis of TG. Little is known about the role of apoCIII contained in high density lipoprotein (HDL) in plasma TG metabolism after a meal. Methods Fasting and 4-hour postprandial peripheral venous blood were collected in 91 subjects selected from our hospital. Serum lipid parameters, apoCIII levels and HDL subcomponents were tested by standard laboratory procedures, ELISA, and nuclear magnetic resonance (NMR), respectively. The t -test, and Non-parametric tests were performed to examine differences between groups, Pearson’s correlation and multiple regression analysis were used to assess the correlations between apoCIII (HDL-associated or nonHDL-associated) and postprandial TG. Results There was a significant increase in TG after a meal compared to fasting status [155.40(96.70–251.07) mg/dl .vs. 118.53(83.38–173.29)mg/dl, p < 0.001]. However, the total apoCIII levels were unchanged before (11.56(7.89–16.22) mg/dl) and after a meal (11.66(7.75–16.02)mg/dl, p = 0.124), while a significant increase in HDL-associated apoCIII (HDL-apoCIII) was observed from fasting (5.25(3.92–7.83)mg/dl) to post-meal (6.46(4.57–8.76)mg/dl, p = 0.001). Unlike nonHDL-apoCIII, HDL-apoCIII was positively correlated with both fasting and postprandial plasma TG in subjects with baseline plasma TG > 118.53 mg/dl (R = 0.503, p < 0.001 for fasting, R = 0.584, p < 0.001 for postprandial). Besides, in the subjects who had an abnormal TG response to a meal, which was defined as postprandial plasma TG increase of>30% compared to baseline TG levels, postprandial HDL-apoCIII was also increased significantly [5.37(3.52–7.02)mg/dl .vs. 6.64(4.61–8.86)mg/dl, p = 0.001]. The enrichment of apoCIII in HDL led to changes of TG, cholesterol, free cholesterol, phospholipid and apoAII contents in HDL particles defined by NMR. Conclusion Enrichment of apoCIII in HDL particles potentially plays an independent role in postprandial hypertriglyceridemia.
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高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2019
·Vol. 20
·期 24
·6239
·
IF 4.183
Yu-Jiao Liu,Xiao-Yang Fan,An-Dong Wang,Yin-Zheng Xia,Wen-Rong Fu,Jun-Yi Liu,Feng-Lei Jiang,Yi Liu
Based on the potential therapeutic value in targeting metabolism for the treatment of cancer, an organic arsenical PDT-BIPA was fabricated, which exerted selective anti-cancer activity in vitro and in vivo via targeting lactate dehydrogenase A (LDHA) to remodel the metabolic pathway. In details, the precursor PDT-BIPA directly inhibited the function of LDHA and converted the glycolysis to oxidative phosphorylation causing ROS burst and mitochondrial dysfunction. PDT-BIPA also altered several gene expression, such as HIF-1α and C-myc, to support the metabolic remodeling. All these changes lead to caspase family-dependent cell apoptosis in vivo and in vitro without obvious side effect. Our results provided this organic arsenical precursor as a promising anticancer candidate and suggested metabolism as a target for cancer therapies.Keywords:organic arsenicals;lactate dehydrogenase A;metabolism;ROS;mitochondria;apoptosis
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高影响因子
Natural Product Communications
·
2019
·
IF 0.554
Zhi Yang,Wen-Jia Dan,Yi-Xiao Li,Guang-Rui Peng,An-Ling Zhang,Jin-Ming Gao
Six metabolites (1–6), including 1 new fusaric acid derivative, designated atransfusarin (1), and 5 known compounds, (3R,6R)-3-benzyl-6-isopropyl-4-methylmorpholine-2,5-dione (2), daucoterol (3), adenosine (4), cerebroside B (5), and 2,3-dihydroxypropyl (Z,Z)-9,12-octadecadienate (6), were isolated from the solid culture of an endophytic Alternaria atrans MP-7, associated with the medicinal plant Psidium guajava. The structure of the new compound was elucidated by spectral data. The antifungal test indicated that (3R,6R)-3-benzyl-6-isopropyl-4-methylmorpholine-2,5-dione (2) showed obvious inhibitory activity against Alternaria solani, Colletotrichum gloeosporioides, and Phyricularia grisea. Compared to fusaric acid (1a), even though the antifungal activity of atransfusarin (1) against A. solani, C. gloeosporioides, and P. grisea was greatly decreased, its inhibitory effect against Botrytis cinerea was still retained.
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FOOD AND AGRICULTURAL IMMUNOLOGY
·
2017
·
IF 1.392
Liqiang Liu,Steven Suryoprabowo,Qiankun Zheng,Shanshan Song,Hua Kuang
A rapid, simple, and sensitive immunochromatographic strip test has been developed to detect aldicarb (ALD) in 0.01 M phosphate buffer solution (PBS) (pH 7.4) and cucumber samples. The test was developed with a sensitive monoclonal antibody specific for ALD, generated by immunizing BALB/c mice with a well-characterized ALD – keyhole limpet hemocyanin conjugate, produced in our laboratory. Under the optimized condition, the cut-off limits of test strip for ALD were found to be 25 ng/mL in 0.01 M PBS (pH 7.4) and 100 ng/mL in cucumber samples, and the highest standard relative deviation was 9.05%. Both results were obtained within 5 min. The data indicate that the method is sensitive, rapid, and specific, so this immunochromatographic test strip has utility for the rapid high-throughput screening of the pesticide, especially in food samples.
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危险品化学品经营许可证（带存储）