FUEL
·
2026
·
IF 7.8
Yushi Feng,Peng Su,Jiaan Jing,Liheng Zhang,Fang Wang,Jingwei Li,Yu Shen
The development of reversible protonic ceramic cells (R-PCCs) is limited by the sluggish reaction kinetics of oxygen electrode. Herein, we propose that introducing potassium (K) into Ba(Co 0.7 Fe 0.3 ) 0.85 Ta 0.15 O 3-δ (BCFT) not only promotes the oxygen vacancy formation and proton uptake, but also enhances oxygen exchange and oxygen dissociation capability, thereby leading to enhanced catalytic activity. R-PCCs with the obtained Ba 0.9 K 0.1 (Co 0.7 Fe 0.3 ) 0.85 Ta 0.15 O 3-δ (BKCFT10) oxygen electrode exhibit good performance in both fuel cell mode (1.21W cm −2 at 650 °C) and electrolysis mode (−1.76 A cm −2 at 1.4 V and 650 °C) compared to pristine BCFT (1.06W cm −2 in fuel cell mode and −1.63 A cm −2 at 1.4 V in electrolysis mode, respectively). Additionally, the R-PCCs show excellent stability in fuel cell (200 h), electrolysis (200 h) modes, and reversible cycling measurement (15 cycles for 30 h). The systematic experiments and theoretical calculations convincingly demonstrate that potassium substitution is an effective method for developing novel oxygen electrode materials for R-PCCs.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Xinming Wu,Bin Huang,Qiguan Wang,Yan Wang
The application of two-dimensional layered hybrid materials in supercapacitor electrodes has high energy density. However, the hybrid assembly and electrochemical energy storage mechanism of multifarious layered electrode materials are still unclear. In this work, a two-dimensional interstratification assembly hybrid electrode by using electrostatic assembly between MXene modified with cetyl trimethylammonium bromide cation (CTAB) and NiCo-LDHs modified with dodecyl benzene sulfonic acid anion (DBS) is presented. As a result, the self-restacking of MXene and NiCo-LDHs nanosheets are effectively prevented, leading to a regular interstratification structure and large interlayer spacing, which accelerate diffusion of electrolyte ions and possess more electrochemical activity sites. The freestanding MXene/NiCo-LDHs electrode displays a much higher specific capacitance of 1207 F g −1 at a scan rate of 0.5 A g −1 , an impressive rate capability with 93% capacitance retention after 5000 cycles. Moreover, it shows maximum energy density of 107.3 Wh kg −1 (98.5 mWh cm −3 ) at a power density of 571 W kg −1 (524 mW cm −3 ), which is among the highest values reported for MXene and NiCo-LDHs based materials in aqueous electrolytes. This significant electrochemical performance is mainly attributed to hydration of two-dimensional electrodes and exchange or adsorption of interlayer anion-cation.
研究领域:
材料科学
·
电化学
·
储能
·
纳米材料
·
超级电容器
✓ 已验证
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2019
·
IF 7.65
Linlin Zhang,Jianang Sha,Rongrong Chen,Qi Liu,Jingyuan Liu,Jing Yu,Hongsen Zhang,Cunguo Lin,Jun Wang
Herein, several novel composite films consisting of three-dimensional (3D) Bi 5 O 7 I flower-like shaped microsphere and zwitterionic fluorinated polymer (ZFP) were successfully fabricated with the aim of achieving high anti-fouling performance. The prepared Bi 5 O 7 I flower-like shaped microsphere particles with diameters in the range of 2∼3 μm were uniformly distributed on the surface and in the internal of ZFP. Benefiting from the hydration layer formed by the ZFP and the efficient photocatalytic performance of Bi 5 O 7 I flower-like microsphere, the resultant optimized Bi 5 O 7 I/ZFP composite film exhibited an excellent diatom anti-settling performance and a high antibacterial rate of 99.09% and 99.66% towards Escherichia coli and Staphylococcus aureus . In addition, the composite films possessed the strengthened visible light absorption, the effectively separation and transfer of the photo-induced electrons and holes, the large number of hydroxyl (O H) radicals and superoxide radicals (O 2 − ) all in Bi 5 O 7 I/ZFP systems, all of which were beneficial for the photocatalytic antifouling activity. More importantly, the synergistic hydration-photocatalytic effect of the Bi 5 O 7 I/ZFP composite films are answerable for the improvement of the antifouling property compared to the control. Thus, the synergistic hydration-photocatalytic contribution of Bi 5 O 7 I/ZFP composite film will shows promise for potential application in marine antifouling.
研究领域:
材料科学
·
海洋生物学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2017
·
IF 3.648
Yong Zhou,Yinyan Gong,Yongli Huang,Zengsheng Ma,Xi Zhang,Chang Q. Sun
Solvation of acid, base, and salt is ubiquitously important to all subject areas in chemistry , health care and life science. However, fine resolution of the solvation dynamics, solute-solvent molecular interactions , and solute capability of transforming the hydrogen bond (O:H O, or HB) and surface stress remain great challenge. Incorporating the notion of O:H O bond cooperativity with a strategy of differential phonon spectroscopy (DPS) has enabled resolution on the fraction and stiffness of the solvent HB from the mode of water to the hydration shells upon NaOH, NaI and HI solvation. Results show that Na + and I + ionic polarization shortens the H O bond and stiffens its phonon from 3200 to 3500 cm − 1 in the hydration shells. The H + in the HI solution forms a H ↔ H anti-HB that disrupts the solution network and surface stress. The excessive electron lone pairs of OH – form the O : ⇔ : O super-HB that compresses the network, sharing the same effect of mechanical compression shifting the H O phonon from above 3100 cm − 1 to its below; the solute H O bond performs the same to the H O dangling bond at surface featured at 3610 cm − 1 . The fraction coefficients or phonon abundance transition, f H = 0, f HO ∝ C, and f x ∝ 1-exp(− C/C 0 ) (x = Na + and I − and C the solute concentration) towards saturation, feature the solute capability of HB transformation. Practice not only confirms the essentiality of the H ↔ H anti-HB point fragilization, the O : ⇔ : O super-HB point compression, and the ionic polarization to the performance of the respective HI, NaOH, and NaI solutions, but also demonstrate the power of the DPS that enables fine-resolution of solvation dynamics and solute capabilities.
研究领域:
化学
·
医疗保健
·
生命科学
·
物理化学
·
光谱学
✓ 已验证
DOI
高影响因子
CEMENT AND CONCRETE RESEARCH
·
2022
·
IF 11.958
Fang Sun,Xueyu Pang,Shiho Kawashima,Guodong Cheng,Shenglai Guo,Yuhuan Bu
In order to study the abnormal viscosity evolution behavior of oil well cement slurries containing tartaric acid, the influence of tartaric acid on the early-age hydration of oil well cement at high temperatures was investigated by isothermal calorimetry (IC), thermogravimetric analysis (TGA) and quantitative XRD (QXRD) analysis in the temperature range of 60 °C to 89 °C. Results show that, a high dosage of tartaric acid can fundamentally change the typical shape of the cement hydration heat flow curve - two additional exothermic peaks associated with aluminate phase hydration (C 3 A and C 4 AF) appear before the main hydration peak. The unsynchronized hydration of the aluminate phases and the silicate phases was found to be the cause of premature setting. Additionally, long-term curing study (up to 28 d) showed that increasing the dosage of tartaric acid decreased the ultimate hydration extent of C 2 S while it increased the ultimate hydration extent of C 4 AF.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Water
·
2022
·Vol. 14
·期 5
·745
·
IF 3.53
Qiong Wu,Nengyu Lin,Li Li,Feng Chen,Baoyong Zhang,Qiang Wu,Xianfu Xv,Xinyan Wang
Natural gas is a resource-rich clean energy source, and natural gas hydration technology is a promising method for natural gas storage and transportation at present. To realize the rapid generation of hydrates with a high gas storage capacity, in this paper NiMnGa micro/nanoparticles (NMGs) with different mass fractions (0.1 wt%, 1 wt%, 2 wt%) were prepared with 0.05 wt% sodium dodecyl sulfate (SDS) and 1 wt% L-tryptophan to form static suspension solutions of gellan gum, and the methane hydration separation kinetics experiments were carried out under the condition of 6.2 MPa for the SDS-NMG-SNG (SNG) and L-tryptophan-NMG-LNG (LNG) systems. The results showed that the induction time of the systems with NMG micro-/nanoparticles was shortened to different degrees and the gas consumption rate was increased. The best effect was achieved in the SNG system with 1 wt% NMG, and the induction time was shortened by 73.6% compared with the SDS-gellan system (SG). The gas consumption rate of the system with L-tryptophan was better than that of the system with SDS, and the best effect was achieved in the system with 2 wt% NMG. The system with 2 wt% NMG had the best effect, and the problem of foam decomposition did not occur. The analysis concluded that NMG has strong mass transfer and phase-change heat absorption properties, which can significantly improve the kinetics of the natural gas hydrate generation process; L-tryptophan can weaken the diffusion resistance of methane molecules in the suspended static solution, further enhancing the mass transfer of the hydrate generation process. These findings will provide new perspectives regarding the application of phase-change micro-/nanoparticles in methane hydrate generation under static conditions.Keywords:gas hydrate;phase-change nanoparticles;surfactants;static system;kinetic characteristics
研究领域:
能源科学
·
材料科学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Yuanyang Yan,Yafei Ren,Yiye Li,Xue Chang,Zhaochuan Chen,Zehao Chen,Xinjuan Zeng,Kangquan Yang,Cailong Zhou,Sucheng Liu,Gang Zhang
Hofmeister effect induces a dense network with <10% swelling ratio over 7 days. • In-situ SnO 2 growth and PDA anchoring prevent hydrogel coating delamination. • High flux (∼2323 L m −2 h −1 bar −1 ) and >99.3% efficiency for O/W emulsions. • Superior durability against fouling, hydraulic shear, and harsh chemicals. Hydrogel-functionalized membranes hold immense promise for the purification of oily wastewater but are persistently plagued by the intrinsic trade-off between hydration capacity and structural stability—specifically, excessive swelling and interfacial delamination. Herein, a robust, interface-locked zwitterionic hydrogel composite membrane (SPSPM) is engineered to defy these limitations for sustainable, high-performance oil/water separation. The strategy involves the in-situ growth of SnO 2 nanoparticles on a stainless-steel mesh to create a hierarchical micro/nanostructured foundation, followed by polydopamine anchoring to ensure robust interfacial adhesion. Crucially, a zwitterionic PSBMA/polyvinyl alcohol hydrogel coating is constructed via a Hofmeister effect-induced salting-out strategy. This approach synergistically promotes dense physical crosslinking and polymer chain crystallization, endowing the hydrogel with exceptional anti-swelling resistance (swelling ratio < 10% over 7 days) and high mechanical toughness. The resulting membrane exhibits superior superhydrophilicity and underwater superoleophobicity, achieving great separation efficiency (>99.3%) and high permeation flux (∼2323 L m −2 h −1 bar −1 ) for diverse surfactant-stabilized emulsions. Moreover, the SPSPM demonstrates remarkable long-term stability against dynamic hydraulic shear, chemical corrosion (acid/alkali/salt), and irreversible fouling, maintaining >96% flux recovery over extended cycles. This work presents a facile and effective strategy to resolve the swelling and delamination issues of hydrogel membranes, providing a reliable material for durable oily wastewater treatment. Download: Download high-res image (203KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHYSICAL CHEMISTRY B
·
2026
·
IF 3.2
Tao Zhu,Xujing Zhang,Yan Xu,Wu Wang,jiahao Ma,Zhitao Yin,Yutong Chen
This study prepared a composite hydrogel using polyethylene glycol diacrylate (PEGDA) and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) as raw materials, aiming to investigate the relationship between its hydration lubrication mechanism and friction behavior. By adjusting the mass fractions of PEGDA and AMPS, the hydrogel’s mechanical properties were matched to those of articular cartilage, achieving a compressive modulus of 3.63 MPa. Friction tests revealed that the hydrogel exhibited a low coefficient of friction, consistently maintained within the range of 0.01–0.03 under various frequencies and load conditions, while demonstrating excellent lubrication stability throughout 7200 cycles of testing. Wetting and swelling tests demonstrate that AMPS effectively enhances the hydrogel’s hydrophilicity while suppressing swelling, simultaneously increasing the bound water content within the system. Molecular dynamics simulations validate the excellent compatibility between PEGDA and AMPS. Constrained shear simulations reveal the hydrated lubrication layer’s crucial role in mitigating shear stress, dispersing heat dissipation, and maintaining lubrication stability.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2024
·
IF 7.4
Penghao Xin,Hui Liu,Jianfeng Wang,Yali Wang,Hui Wang,Suping Cui
In this study, the impacts of CO 2 -absorbed triethanolamine solutions (TEA-CO 2 ) on the mechanical property, phase composition and micro-structure of cement mortars were investigated. The results showed that TEA-CO 2 addition increased the 1d, 3d, and 28d compressive strength by 47%, 19%, and 4%, respectively, which suggests a synergistic effect of triethanolamine and absorbed CO 2 on strength development of cement mortars. The enhancement is due to TEA-CO 2 accelerates hydration of aluminate and silicate phases in early age. TEA-CO 2 facilitated CaCO 3 formation to increase cement hydration degree and modify the pore structures . However, the hydration of silicate phases was delayed slightly by TEA-CO 2 at 28d. The above results provide theoretical support for further utilization of CO 2 in cementitious materials .
研究领域:
土木工程
·
材料科学
✓ 已验证
DOI
高影响因子
Nano Today
·
2025
·
IF 10.9
Ran Zhao,Jianmin Gu,Zhihao Shang,Xiaopeng Cheng,Chunxiao Liang,Desong Wang,Shutao Wang,Jingxin Meng
Scale deposition severely degrades the heat-transfer efficiency of industrial equipment, leading to substantial energy wastage. While several advanced scalephobic surfaces have been developed to mitigate scaling, their poor stability under harsh operating conditions hinders practical implementation. Herein, we report a dynamic hydration layer-synergistic ion-releasing (DHLIR) coating that exhibits exceptional energy-saving potential, enabled by ultrahigh scale resistance under boiling conditions. The DHLIR coating was facilely fabricated via a combined spraying and heat-treatment process, utilizing aluminum phosphate (AP) as the inorganic binder, titanium dioxide (TiO₂) nanoparticles as the structural reinforcement phase, and hexagonal boron nitride ( h BN) nanosheets as the thermally conductive filler. Notably, the superior scalephobic performance of the DHLIR coating stems from two key mechanisms: the surface hydration layer minimizes mineral ion adsorption, while the released scale inhibitors reduce scale adhesion. Furthermore, the DHLIR coating demonstrates robust durability under extreme environments, including high temperatures, abrasion, and corrosive liquids. In a simulated industrial boiler setup, the DHLIR coating conserved approximately 15.3 % of energy compared to stainless steel. This work thus presents a promising strategy for anti-scaling and energy conservation in boiling environments.
✓ 已验证
产品关联
DOI
高影响因子
CEMENT & CONCRETE COMPOSITES
·
2022
·
IF 9.93
Ruiquan Jia,Qiang Wang,Ting Luo
Understanding the workability of alkali-activated phosphorus slag (AAPS) pastes is fundamental for their efficient application. This study revealed the novel mutual inhibition mechanism through which the alkali dose and silicate modulus affect the workability of AAPS pastes based on the hydration reaction . The slump loss of NaOH-activated phosphorus slag (NAPS) paste was slow, and that of waterglass-activated phosphorus slag (WAPS) paste was faster because the soluble Si in waterglass accelerated the dissolution of the phosphorus slag (PS). At a moderate waterglass modulus, the slump losses of the WAPS pastes were slow because the moderate [Al]/{[Ca]+[Mg]} ratio in the pore solution minimized the difference in the magnitude of mutual inhibition between Ca, Mg and Al, causing all hydrates to form slowly. However, at higher and lower waterglass moduli, the WAPS pastes exhibited fast slump losses because hydrates with excess elements formed rapidly due to the excessively high or low [Al]/{[Ca]+[Mg]} ratio.
研究领域:
土木工程
·
材料科学
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
·
IF 7.632
Di Li,Yanyan Gong,Minchen Du,Chao Bu,Cheng Chen,Somboon Chaemcheun,Jia Hu,Yongxing Zhang,Ye Yuan,Francis Verpoort
α-Hydroxy ketones are a series of biologically active fragments in nature as well as important synthons for organic chemistry. Herein, an AgOAc/1-ethyl-3-methylimidazolium acetate ionic liquid system was developed for the CO2-promoted hydration of propargylic alcohols and H2O to produce α-hydroxy ketones. Diverse desired products could be obtained in satisfactory yields under 1 bar of CO2 pressure with the catalysis of only a trace amount of silver (0.005–0.25 mol %), which is the lowest level ever reported for the metal-catalyzed systems. In particular, this system had robust recyclability, and it could be reused effectively at least 5 times. Furthermore, an unprecedented turnover number (TON) of 9200 was achieved, which is considered to be the highest TON ever reached for this hydration.
研究领域:
有机化学
·
催化
·
绿色化学
✓ 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）