JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Shuo Yang,Guangpeng Wu,Jing Zhang,Yuning Guo,Yushuang Chen,Yuanmin Zhu,Xiaofeng Zhang,Liujiang Zhou
Aqueous Zn-ion batteries (AZIBs) are considered as a promising energy storage device owing to their inherent safety, cost-effectiveness, and environment friendliness. However, their commercialization is hindered by critical challenges, including severe dendrite growth and poor electrochemical performance stemming from an inefficient cathode-electrolyte interaction, thus leading to inevitable short circuits and significant capacity decay. Herein, sec-butanol (SBT) is applied as a bifunctional electrolyte additive in a 1 M Zn(ClO 4 ) 2 aqueous electrolyte to achieve high-performance AZIBs. Profiting from the strong coordination and adsorption capabilities, SBT effectively reshapes the solvation structure of Zn 2+ ions in the electrolyte and inhibits the two-dimensional diffusion of Zn 2+ ions. Moreover, SBT also enhances the wettability of the electrolyte on the V 2 O 5 cathode, facilitating better electrode–electrolyte interactions. Benefiting from those positive effects, the Cu//Zn half cell with SBT demonstrates stable cycling performance over 1000 cycles at 5 mA cm −2 in the modified electrolyte, markedly outperforming cells with pure aqueous electrolyte. Most notably, the V 2 O 5 //Zn full battery achieves a remarkable capacity of 247.78 mAh g −1 at 4 A g −1 in the modified electrolyte, significantly surpassing the performance of systems without SBT.
研究领域:
材料科学
·
电化学
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产品关联
DOI
PubMed
高影响因子
COMBUSTION AND FLAME
·
2019
·
IF 4.12
Yan Zhang,Bowen Mei,Chuangchuang Cao,Xiaoyuan Zhang,Wenhao Yuan,Jiuzhong Yang,Yuyang Li
This work reports the investigation on pyrolysis and laminar flame propagation of sec- butylbenzene. The pyrolysis experiments were performed in a flow reactor using synchrotron vacuum ultraviolet photoionization mass spectrometry from 780 to 1166 K at 0.04 and 1 atm. The pyrolysis products were identified and their mole fraction profiles versus the heating temperature were evaluated. The laminar burning velocities of sec- butylbenzene/air mixtures were measured at the initial temperature of 423 K and initial pressures of 1–10 atm in a high-pressure constant-volume cylindrical combustion vessel with the equivalence ratio from 0.7 to 1.5. Furthermore, a kinetic model was developed to predict the pyrolysis and laminar flame propagation of sec ‑butylbenzene. Validation of the present model was performed against the new experimental data in this work. Rate of production analysis and sensitivity analysis were performed to provide insight into the chemistry in fuel decomposition and polycyclic aromatic hydrocarbons (PAHs) formation. In the flow reactor pyrolysis , the consumption of sec ‑butylbenzene is mainly controlled by the unimolecular decomposition reactions and H-atom abstraction reactions at both low and atmospheric pressures. Fuel specific pathways through propenylbenzene and α-methylstyrene become the dominant formation pathways of indene and naphthalene . In the laminar flame propagation, the laminar burning velocity of sec ‑butylbenzene is sensitive to the reactions of both small species and fuel-relevant intermediates under all investigated conditions. In particular, the pyrolysis reactions in the fuel sub-mechanism play inhibition effects on the laminar flame propagation of sec ‑butylbenzene under rich conditions. The laminar burning velocity of sec ‑butylbenzene is also compared with benzene, toluene and ethylbenzene under same initial conditions. Both the thermodynamic and kinetic effects are responsible for the difference in laminar burning velocities of these aromatic fuels.
研究领域:
化学工程
·
燃烧科学
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产品关联
DOI
高影响因子
Cell Reports
·
2023
·Vol. 42
·期 11
·113349-113349
·
IF 8.8
Shao Q,Wijaya CS,Wang S,Meng X,Yuan C,Ma C,Xu S
Maintaining cellular viability relies on the integrity of the plasma membrane, which must be repaired upon damage. Soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE)-mediated membrane fusion is a crucial mechanism involved in membrane repair. In C. elegans epidermal cell hyp 7, syntaxin-2 (SYX-2) facilitates large membrane wound repair; however, the underlying molecular mechanism remains unclear. Here, we found that SNAP-25 protein RIC-4 and synaptobrevin protein SEC-22 are required for SYX-2 recruitment at the wound site. They interact to form a SNARE complex to promote membrane repair in vivo and fusion in vitro. Moreover, we found that SEC-22 localized in multiple intracellular compartments, including endosomes and the trans-Golgi network, which recruited to the wounds. Furthermore, inhibition of RAB-5 disrupted SEC-22 localization and prevented its interaction with SYX-2. Our findings suggest that RAB-5 facilitates the formation of the RIC-4/SEC-22/SYX-2 SNARE complex and provides valuable insights into the molecular mechanism of how cells repair large membrane wounds.
研究领域:
细胞生物学
·
分子生物学
·
发育生物学
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Chengming Wu,Zhanyang Gao,Yi Wang,Yunbai Luo
Three kinds of imidazolide basic ionic liquids were prepared and employed as efficient catalysts for the synthesis of sec -butanol from the transesterification of sec -butyl acetate and methanol. The effect of anions and cations of basic ionic liquids on the catalytic activity were explored, and the relationship between their catalytic activities and basicities was established. Among various of basic ionic liquids, 1-butyl-3-methyl-imidazolium imidazolide ([Bmim]Im) performed better and was chosen for the further studying the influence of experimental conditions. The conversion of sec -butyl acetate reached 90.4% at 60 °C for 60 min under ambient pressure. In addition, the catalyst [Bmim]Im was repeatedly used for five times without noticeable drop in activity and obvious change in chemical structure. The reaction mechanism of the transesterification catalysed by [Bmim]Im was also proposed.
研究领域:
化学工程
·
催化化学
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DOI
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
·
2024
·
IF 2.2
Jing Xia,Zhigao Sun
Thermodynamic inhibitors may be used to inhibit hydrate formation in industry. Alcohol substances, due to their hydrophilic hydroxyl groups in their molecular structure, are prone to form hydrogen bond with water molecules to inhibit hydrate formation. In this work, sec -butyl alcohol is chosen to study the effects on CO 2 hydrate dissociation equilibrium conditions, where the step-heating method is utilized to obtain hydrate equilibrium conditions. The equilibrium curve of carbon dioxide hydrate dissociation moves to the region of lower temperatures or higher pressures. The higher mass fraction of sec -butyl alcohol, the better effect of inhibiting hydrate formation. Sec-butyl alcohol can be used as a thermodynamic hydrate inhibitor.
研究领域:
化学工程
·
物理化学
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产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2021
·
IF 4.126
Tengteng Li,Qingyan Li,Xin Tang,Zhiliang Chen,Yifan Li,Hongliang Zhao,Silei Wang,Xin Ding,Yating Zhang,Jianquan Yao
The preparation of a high-quality perovskite film is very important for improving the device performance of perovskite photodetectors (PPDs). At present, one of the most commonly used methods to obtain high-quality perovskite films is to regulate the nucleation and crystal growth processes through antisolvent-assisted crystallization. In this work, we employ a low-toxicity antisolvent sec-pentanol (SPA) as a polar auxiliary agent to modify the perovskite films, which can effectively regulate the MAI·PbI2·DMSO intermediate phase because of its moderate polarity, leading to the formation of a uniform and pinhole-free perovskite morphology. As a result, the photoresponsivity reaches 1.06 A/W under an illumination of the 532 nm laser with a power density of 12.74 μW/cm2 at a bias voltage of −2 V, which is the known champion responsivity for vertical PD based on an indium tin oxide glass substrate and with CH3NH3PbI3 as the only photosensitive material. Moreover, we study the effects of chlorobenzene with polarity less than SPA and n-butanol with polarity greater than SPA on perovskite formation and device performance as an antisolvent and find that the crystallization quality of the perovskite film is greatly affected by the polarity of the antisolvent. This work provides a reference for the preparation of high-performance PPDs.
研究领域:
材料科学
·
光电子学
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产品关联
DOI
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2015
·
IF 2.912
Xiongliang Huang,Zhe Li,Chenyu Du,Jufang Wang,Shuang Li
A xylanase gene was cloned and characterized from Thermoanerobacterium aotearoense SCUT27, which was attested to consist of a signal peptide, one glycoside hydrolase family 10 domain, four carbohydrate binding modules, and three surface layer homology domains. The change of expression host from Escherichia coli to Bacillus subtilis resulted in a 4.1-fold increase of specific activity for the truncated XynAΔSLH. Five different versions of secretion signals in B. subtilis indicated that it was preferably routed via a Sec-dependent pathway. Purified XynAΔSLH showed a high activity of 379.8 U/mg on beechwood xylan. XynAΔSLH was optimally active at 80 °C, pH 6.5. Thin layer chromatography results showed that xylobiose and the presumed methylglucuronoxylotriose (MeGlcAXyl3) were the main products liberated from beechwood xylan catalyzed by the recombinant xylanase. All of the results suggest that XynAΔSLH is a suitable candidate for generating xylooligosaccharides from cellulosic materials for industrial uses.
研究领域:
生物技术
·
酶学
·
微生物学
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产品关联
DOI
PubMed
高影响因子
FLUID PHASE EQUILIBRIA
·
2015
·
IF 2.2
Dan Huang,Chen Yang,Xueliang Xue,Qinglian Wang,Ting Qiu
Isobaric vapor–liquid equilibrium (VLE) of sec -butyl acetate + para -xylene binary system and methyl acetate + para -xylene + sec -butyl acetate + acetic acid quaternary system were determined at 101.3 kPa in a modified Rose still, so as to provide a basis for the design and simulation of the separation process of acetic acid dehydration system. In the present study, the L–W integral test was used to check the thermodynamic consistency of binary VLE data. The results indicated that the thermodynamic consistency of binary VLE data measured in this paper was satisfactory. Furthermore, binary experimental data were correlated well by three models, which are the NRTL, Wilson and UNIQUAC models, respectively. Subsequently, the corresponding binary interaction parameters of each model were obtained. In addition, the NRTL activity coefficient model in combination with Marek–Standart chemical theory was used to predict the quaternary system VLE data for the association of acetic acid.
研究领域:
化学工程
·
热力学
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DOI
高影响因子
FLUID PHASE EQUILIBRIA
·
2010
·Vol. 293
·期 1
·73-78
·
IF 1.857
Song Hu,Qing-lin Chen,Bing-jian Zhang,Yuan-lan Liang,Xue-nong Gao
Experimental liquid–liquid equilibrium (LLE) of the water–acetic acid–sec-butyl acetate ternary system was investigated at 298.15, 303.15, 308.15 and 313.15 K and at atmospheric pressure. Separation factors were also evaluated for the immiscibility region. The NRTL and UNIQUAC models were applied to fit the experimental data for the ternary system . The binary interaction parameters obtained from both models were found to be successfully correlated with the equilibrium compositions . The UNIFAC group contribution method was employed to predict the observed ternary LLE data. It was found that four types of the UNIFAC model (UNIFAC, UNIFAC-LL, UNIFAC-DMD, and UNIFAC-LBY) did not provide a good prediction of the LLE data for this ternary system .
研究领域:
化学工程
·
热力学
·
分离科学
·
过程工程
✓ 已验证
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2014
·
IF 2.045
Qing Chai,Hui Wan,Lei Wang,Guofeng Guan
Isobaric vapor–liquid equilibrium (VLE) data for the sec-butyl acetate + acetic acid binary system, as well as the sec-butyl acetate + acetic acid + water ternary system, were measured at 101.33 kPa using a modified Rose still. The second virial coefficients and apparent fugacity coefficients were calculated to analyze the nonideal behavior in vapor phase caused by the association of acetic acid, which were corrected by the chemical theory and Hayden–O’Connell method. The binary experimental data were tested for thermodynamic consistency by the Herington method and the point-to-point test and correlated by the nonrandom two-liquid (NRTL) and universal quasichemical activity coefficient (UNIQUAC) models using the nonlinear least-squares method. The model parameters of the binary system were used to correlate the ternary VLE data. The ternary correlated values obtained in this way agreed well with the experimental values.
研究领域:
化学工程
·
热力学
·
相平衡
✓ 已验证
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Xianglong Zhou,Shiyao Yu,Yunfei Liu,Wenwen Yu
This study employed an integrated multimethod approach to investigate how size-exclusion chromatography (SEC) operational parameters influence the starch hydrodynamic and topological characterization. The effects of two column configuration (GRAM 10000/100 vs. 3000/100) and sample concentration on starches with varying amylose contents were systematically evaluated using SEC coupled with differential refractive index and multi-angle light scattering (SEC-DRI-MALS). Results demonstrated that column pore size critically affected the resolution of large amylopectin molecules (hydrodynamic radius, R h ≥ 100 nm), while amylose-rich fractions ( R h < 100 nm) were less sensitive. Increasing concentration from 1 mg/mL to 4 mg/mL induced amylopectin aggregation, elevating apparent density ( ρ ). A strong positive ρ - R h correlation in amylopectin topology indicated that large amylopectin molecules achieve their size through numerous short branches rather than fewer long chains. This topological model was unequivocally supported by chain length distribution (CLD) analysis. A comparative evaluation of fluorophore-assisted carbohydrate electrophoresis (FACE) and high-performance anion-exchange chromatography (HPAEC) revealed that FACE provides superior resolution for short and long branches, while HPAEC was limited by co-elution, peak broadening, and a restricted dynamic range (DP ∼ 70). Our findings establish an optimized analytical framework for starch topology analysis, highlight critical SEC methodological considerations for reliable structure-function correlations.
研究领域:
高分子科学
·
碳水化合物化学
·
分析化学
·
食品科学
·
大分子结构
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
·
2024
·Vol. 149
·期 10
·4491-4503
·
IF 3
Chen Yongjia,Zhao Yilin,Hua Min,Pan Xuhai,Jiang Huichun,Jiang Juncheng
We investigated the inhibition of thermal runaway of styrene polymerization by DNPB. DNBP is an inhibitor in styrene polymerization reaction. Polymerization is one of eighteen hazardous processes. Styrene polymerization reaction is characterized by high heat production and fast reaction rate. Firstly, differential scanning calorimetry (DSC) and adiabatic calorimetry (ARC) were chosen to study the effect of different mass of DNBP on thermal behavior in non-isothermal and adiabatic environments. Secondly, exploring the inhibitory effect of DNBP at different runaway temperatures using an oil bath reactor. The results showed that when DNBP was at 0.80%, effective inhibition was obtained at different runaway temperatures. Finally, GC/MS and Gauss16 were used to infer the mechanism of inhibition in terms of macroscopic products and microscopic instabilities. The results showed that the products of the oil bath reactor experiments were related to the mass of DNBP, and when DNBP was 0.80%, the products increased and the main reaction was inhibited. Finally, it was deduced that the nitro group undergoes a possible path of direct addition reaction with the styrene radical before bond breaking.
研究领域:
化学工程
·
材料科学
·
安全工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）