ACS Nano
·
2025
·
IF 16
Juexin Huang,Jingyi Xia,Sravan Baddi,Yu Zhao,Chuan-liang Feng
Piezoelectric biomaterials hold immense potential for next-generation microdevices, yet their piezoelectric performance often trails behind that of conventional synthetic counterparts. This study demonstrates a dual-scale polarization strategy to significantly enhance the piezoelectric response of d-phenylalanine derivatives (d-PheAD). Molecular-level polarization is amplified through ionic interactions with l-glutamic acid-modified Fe3O4 magnetic nanoparticles, while macroscopic alignment of d-PheAD nanoarrays under magnetic fields optimizes collective dipole orientation. This synergistic approach elevates the effective piezoelectric coefficient (deff) from 10.4 to 121.9 pm V–1, outperforming most biomaterial-based piezoelectric systems and many inorganic piezoelectric systems. Integrating these engineered assemblies into a triboelectric-enhanced piezoelectric nanogenerator yields unprecedented electrical outputs (2853 nA, 51.9 V), a 25-fold improvement over baseline configurations. The device achieves real-time detection of trace HCl gas at low concentrations, demonstrating superior sensitivity compared to commercial electrochemical sensors. By bridging molecular design and macroscopic engineering, this work establishes a scalable paradigm for deploying eco-friendly piezoelectric biomaterials in high-performance microelectronics and environmental monitoring technologies.
研究领域:
材料科学
·
纳米技术
·
生物医学工程
·
传感器技术
·
环境监测
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CATALYSIS
·
2025
·
IF 6.5
Mengshan Deng,Chaosi Liu,Jiaqi Xu,Xinqing Lu,Rui Ma,Yanghe Fu,Weidong Zhu
Rutile-type TiO 2 supported RuO 2 catalysts show a remarkably low-temperature activity in the catalytic gas-phase oxidation of HCl to Cl 2 , i.e. , the Deacon process. Although it is found that the oxygen vacancies in TiO 2 can enhance the activity and stability of supported RuO 2 catalysts in the Deacon process, the role of oxygen vacancies in the catalytic performance has not been clearly illustrated yet. In the current study, oxygen vacancies were introduced onto TiO 2 through a straightforward yet highly effective treatment of the commercial rutile-TiO 2 with H 2 at an optimal reduction temperature of 600 °C, named TiO 2 -600, which was then used as the support for preparing RuO 2 /TiO 2 -600 via an incipient wetness impregnation method. The comprehensive characterizations of TiO 2 , TiO 2 -600, and their supported RuO 2 catalysts conclusively demonstrate that the introduced oxygen vacancies on TiO 2 are consumed for the formation of the RuO 2 nanoparticles with the enhanced RuO 2 dispersion and the increased interactions between RuO 2 and TiO 2 -600, resulting in the higher catalytic activity and stability of RuO 2 /TiO 2 -600 in the Deacon process, compared to RuO 2 /TiO 2 . Consequently, this study not only clarifies the role of oxygen vacancies on TiO 2 but also offers valuable insights to guide the development of Deacon catalysts with a high low-temperature activity and a long-term stability.
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2016
·
IF 5.393
Ting Liu,Lucheng Xue,Xin Guo,Yu Huang,Chuguang Zheng
To investigate the mechanism of Hg0 adsorption on the α-Fe2O3(001) surface in the presence of HCl, which is considered to be beneficial for Hg0 removal, theoretical calculations based on density functional theory as well as corresponding experiments are carried out. HCl adsorption is first performed on the α-Fe2O3(001) surface, and the Hg0 adsorption on HCl-adsorbed α-Fe2O3(001) surface is subsequently researched, demonstrating that HCl dissociates on the surface of α-Fe2O3, improving the Hg0 adsorption reactivity. With further chlorination of the α-Fe2O3(001) surface, FeCl3 can be achieved and the adsorption energy of Hg0 on the FeCl3 surface reaches −104.2 kJ/mol, representing strong chemisorption. Meanwhile, a group of designed experiments, including Hg0 adsorption on HCl-preadsorbed α-Fe2O3 as well as the coadsorption of both gaseous components, are respectively performed to explore the pathways of Hg0 transformation. Combining computational and experimental results together, the Eley–Rideal mechanism with HCl preadsorption can be determined. In addition, subsequent X-ray photoelectron spectroscopy analysis verifies the appearance of Cl species and oxidized mercury, exhibiting the consistency with experiments.
研究领域:
环境化学
·
计算化学
·
表面科学
·
污染控制
✓ 已验证
DOI
高影响因子
ChemistrySelect
·
2026
·Vol. 11
·期 36
·e74557
·
IF 2.3
Xiaowei Zhou,Yuerong Wang,Youqing Sun,Dan Liu,Thabo T. I. Nkambule,Alex T. Kuvarega,Bhekie B. Mamba,Jianzhou Gui
In this study, a series of Ionic liquid-derived carbon dots (IL-CDs) were synthesized by microwave method from L-histidine and imidazolium-based ILs included 1-butyl-3-methylimidazolium chloride, 1-hexyl-3-methylimidazolium chloride and 1-decyl-3-methylimidazolium chloride. Their structures were elucidated using Fourier transform infrared spectroscopy (FTIR), Ultraviolet–visible spectrum (UV–vis), and nuclear magnetic resonance (NMR). The inhibition efficacy of IL-CDs on 45# steel within a 298 K, 1 M HCl solution system was investigated employing various techniques, including electrochemical analysis, weight loss measurement, scanning electron microscopy (SEM), atomic force microscopy (AFM), and molecular dynamics simulations. The microstructure and surface properties IL-CDs were obtained through a series of characterizations; and their corrosion inhibition performance for 45# steel was evaluated using weight loss and electrochemical methods in 1 M HCl solution. The electrochemical impedance spectroscopy (EIS) results showed that the corrosion inhibition efficiency of CDs in 1 M HCl solution could reach 98.2% at a concentration of 15 ppm, and 95% even at an increased temperature of 313 K. The strong adsorption of IL-CDs follows the Langmuir adsorption model, and the Gibbs free energy increases with the chain length of ionic liquids. The adsorption behavior of the IL-CDs on the carbon steel surface shows the chemisorption feature. Graphical The corrosion inhibition mechanism involves carbon dots that adsorb on the surface of carbon steel to form a hydrophobic film, which suppresses hydrogen evolution at the cathode and oxidation reactions at the anode.
✓ 已验证
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2025
·
IF 6.6
Chunmiao Liu,Bin Wang,Xiaofang Peng,Yuxin Qin,Guanhui Gao,Jie Liu
This study prepared N-doped carbon dots (N-CDs) as an inhibitor by employing citric acid and ethylenediamine as precursors via a hydrothermal method. The corrosion inhibition behavior of N-CDs on X65 steel and 7A04 aluminum alloy in HCl solution was systematically studied and compared using electrochemical measurements, weight loss test and surface analysis techniques. The results indicate that the synthesized N-CDs function as mixed-type inhibitors primarily inhibiting the anodic reaction, and they exhibit better corrosion inhibition performance on X65 steel compared to 7A04 aluminum alloy. The corrosion inhibition efficiencies of N-CDs increase and then decrease with concentration, and the extreme-value-phenomena of concentration appears at 100 mg/L, which is related to the stability and agglomeration degree of N-CDs in the solution. In addition, this study also compares and analyzes the corrosion inhibition mechanisms of N-CDs for both types of metals in HCl solution.
研究领域:
材料科学
·
腐蚀工程
·
电化学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Lei Zhang,Wanbang Zhu,Xin Wen,Huiying Ding,Hongsen Hui,Yujun Zhang,Hongzi Tan,Qian Zhuang,Jiakai Chen,Xianhui Li,Hongchang Pei
Nanofiltration (NF) membrane with good permselectivity is highly desired. However, it often suffers from permeability-selectivity trade-off in practical applications. To overcome this challenge, a novel in-situ template strategy was proposed for the preparation of high-performance thin film nanocomposite (TFN) NF membrane by adding AgNO 3 in the aqueous solution. The AgCl nanoparticles can be in-situ incorporated into the polyamide film due to the by-product of HCl from the interfacial polymerization and AgNO 3 at the oil/water interface. Besides, water transportation channels can be further constructed in the polyamide film via removal the AgCl template using ammonia as post-treatment solution. The optimized NF-3 membrane with low water transportation resistance shows a two-fold permeance as well as equal salt rejection compared with the controlled NF-1 membrane, indicating that the “trade-off” effect is effectively inhibited. Consequently, the in-situ template strategy provides a new sight for the preparation of high-performance NF membrane.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2020
·
IF 5.065
Meng Li,Yuanyong Ouyang,Wenzhong Yang,Yun Chen,Kegui Zhang,Zhaoshun Zuo,Xiaoshuang Yin,Ying Liu
This work tests the anti-corrosion ability of three imidazolium-based ionic liquids with different anions—bis(fluorosulfon)imide ([FSI] − ), bis(trifluoromethylsulfonyl)imide ([NTF 2 ] − ) and bis(pentafluoroethylsulfon)imide ([BETI] − )—on carbon steels in 1 M HCl solution at 298 K. Electrochemical impedance spectroscopy (EIS) indicated that increasing the number of –CF 2 groups in the anion vastly enhanced the corrosion-inhibition efficiency ( η ). Even at small concentrations (1.25 mM), [(OHC 2 )MIm][BETI] achieved an η of 86%. The polarisation curve verified that [(OHC 2 )MIm][BETI] acted as a mixed-type inhibitor and that its adsorption followed the EI-Away adsorption model. Scanning electron microscope (SEM) imaging intuitively confirmed the superior inhibition performance of [(OHC 2 )MIm][BETI]. X-ray photoelectron spectroscopy (XPS) showed that [(OHC 2 )MIm][BETI] was stably absorbed on the carbon-steel surface. Contact angle measurements indicated that adding the –CF 2 groups effectively decreased the hydrophilicity and surface energy of carbon steel from 69.39 to 19.93 mJ/m 2 , hindering the adsorption of water molecules. Moreover, a frontier molecular orbital theory (FMOT) study confirmed that the –CF 2 groups enhanced the donation and drawing of electrons, and molecular dynamics (MD) simulations revealed that they reduced the interaction energy (E interact ) values between the corrosion inhibitor molecule and the iron surface (from −321.08 to −612.74 kJ·mol −1 ). It was inferred that among the three ionic liquids, [(OHC 2 )MIm][BETI] absorbed most strongly to the carbon-steel surface.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Shiliu Yang,Quanzhou Yin,Jiabiao Lian,Guochun Li,Yijun Wei,Qiyong Zhu
Polyaniline (PANi) has brought new enthusiasm in the field of aqueous Zn-ion batteries due to the unique nature of high conductivity, excellent structural flexibility, and fast ions de-/intercalation ability. However, the naked and densified PANi usually suffers from capacity fade and limited rate performance owing to the deprotonation of the polymer and imbalanced electron-ion transmission. Herein, a HCl-doped porous PANi electrode was prepared by electrodepositing the aniline monomer onto a porous carbon cloth (PCC), which plays an important role in elevating the loading mass and inducing porous structure of the PANi, thus enhancing the mass energy density and ions diffusion coefficient of the electrode; On the other hand, the HCl-doping could facilitate the charge delocalization and increase the conductivity of the PANi. Besides, a convertible behavior of the energy storage sites during charging-discharging processes was firstly observed for PANi, which should be responsible for the high-rate and cycling performance of the Zn-ion batteries, there is very small capacity decay from 170 mAh g −1 at 1 A g −1 to 161 mAh g −1 at 10 A g −1 , and 87 % of the initial the capacity can maintain after 2000 cycles at 5 A g −1 . Furthermore, the quasi-solid-state Zn-ion battery can also display superior performance, showing potential application of the PCC@PANi for wearable devices
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
·
2026
·
IF 2.6
Li Shanjian,Ren Jie
Polydopamine (PDA) coatings have great potential for corrosion protection in harsh acidic industrial environments. However, their performance and failure mechanisms in strongly acidic media at identical H⁺ concentrations but with different anions remain unclear. This work systematically compares the corrosion inhibition behavior of PDA coatings on N80 steel in hydrochloric acid and sulfuric acid media using static weight-loss measurements, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), UV-Vis spectrophotometry, and surface characterization. The results demonstrate significant anion-dependent behavior. At 25 °C, the corrosion inhibition efficiency reached 96.55% in 0.05 mol L −1 H 2 SO 4 with a coating peeling rate of only 1.22%. In contrast, the efficiency was only 59.72% in 0.10 mol L⁻ 1 HCl with a peeling rate of 3.38%. The charge-transfer resistance was higher and the coating structure was more stable in H 2 SO 4 . Increasing the acid concentration or temperature reduced the protective performance of the coating, with faster degradation observed in HCl. The Mechanistic analysis indicates that small, highly mobile Cl⁻ ions penetrate the coating and disrupt intermolecular interactions, whereas SO 4 2 ⁻ interacts weakly with protonated PDA, thereby preserving coating integrity. These results provide a theoretical basis for designing PDA-based anticorrosion coatings for high-chloride acidic industrial environments.
✓ 已验证
产品关联
DOI
高影响因子
CORROSION SCIENCE
·
2025
·
IF 8.5
Z.N. Jiang,J.M. Duan,S.Y. Tian,R.Y. Xue,C.F. Dong,G.A. Zhang
A green corrosion inhibitor, (2 E , 4 E )-2-cyano-5-phenyl-2,4-pentadienoic acid (CPPA), was synthesized via one-step modification of cinnamaldehyde. CPPA exhibits outstanding inhibition effect for mild steel (MS) in HCl medium with an inhibition efficiency of 98.83 % at a concentration of 0.6 mM with good inhibition stability. The inhibition mechanism of CPPA was elucidated by combining surface characterization techniques with ab initio molecular dynamics (AIMD) simulations. XPS and ToF-SIMS analyses indicate that CPPA molecules could adsorb on MS surface by covalent bonding through N, C, and O atoms. AIMD simulations reveal that CPPA approaches to steel surface motivated by van der Waals force, i.e., physisorption occurs. Subsequently, the physisorption of CPPA is transformed into a strong and stable chemisorption, which was demonstrated by IGMH, CPPA-Fe bond length, electron density difference and PDOS characteristics. The adsorbed CPPA film significantly improves the hydrophobicity of MS surface, and acts as a shield to effectively hinder the diffusion and access of corrosive particles to steel surface, thus exhibiting outstanding and stable corrosion inhibition performance.
研究领域:
材料科学
·
腐蚀工程
·
表面化学
·
计算化学
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Mingjun Cui,Yujie Qiang,Wei Wang,Haichao Zhao,Siming Ren
In this work, nitrogen doped carbon dots (NCDs) were prepared with citric acid monohydrate (CA·H 2 O) and ethanolamine (EA) via microwave method. In combination with electrochemical techniques, weight loss and SEM, it is found that nitrogen doping in carbon dots effectively suppresses the corrosion of Q235 carbon steel in HCl solution owing to the presence of pyrrolic N in NCDs. Especially for NCDs (1:10), the optimum inhibition efficiency is about 89% after 1 h of immersion in 0.1 M HCl solution with 500 ppm of concentration. By further calculation, the Δ G ads 0 value for NCDs (1:10) is -26.65 kJ·mol -1 , indicating the adsorption of NCDs on Q235 carbon steel surface involves both chemisorption and physisorption. In addition, NCDs still remain superior corrosion inhibition performance with the prolonged immersion time and ascending temperature.
研究领域:
材料科学
·
腐蚀与防护
·
电化学
✓ 已验证
DOI
高影响因子
Food Packaging and Shelf Life
·
2022
·
IF 8.749
Huawei Zhou,Ning Yang,Jingwen Hou,Chunwei Yu,Zhu Jin,Ping Zeng,Lingxin Yang,Yuli Fu,Yuanyuan Shen,Shengrong Guo
The effects of CaCl 2 , HCl , acetic acid or citric acid on dynamic mechanical performances and physicochemical properties of sodium alginate (SA) edible films are investigated. The results showed that the storage or loss modulus of the films were greater at 33 % relative humidity (RH) and decreased much slower with temperature (30–90 ℃) at 57 % or 75 % RH after different treatments, with their glass transition temperatures shifting higher. All the treatments improved the water resistance and mechanical properties of SA films. Specifically, CaCl 2 -treated films had the lowest solubility, and highest water contact angle and tensile strength . Acetic acid-treated films had the highest elongation at break. Citric acid-treated films had the lowest equilibrium moisture content and water vapor permeability. Film surface morphology kept dense and compact after various treatments. FT-IR spectra revealed that all the acid treatments increased hydrogen-bond interaction. This work provides new information for SA edible film modification.
研究领域:
食品科学
·
材料科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）