APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Wenpei Kang,Xuqiang Hu,Mengjia Han,Danyang Bai,Yurong Zhao,Daofeng Sun
Alloying-type anode materials have been demonstrated to be potential alternatives for the sodium ion batteries (SIBs). Nevertheless, the serious capacity decay inhibits their practical application. Herein, alloying-typed amorphous Sb species confined into N,O,P-doped biomass carbon microsphere (Sb@BCM) through Sb-O-C bonds is prepared via in-situ galvanic replacement of the Ni nanoparticles wrapped into the BCM (Ni@BCM), which is obtained from the hydrothermal and carbonization reaction with the Ni 2+ and porphyra. Benefitted from the optimized Sb species anchoring, stable Sb–O–C bond and N,O,P-doped carbon skeleton, Sb@BCM-3 anode exhibits enhanced reaction kinetics and cycling stability in SIBs. Sb@BCM-3 anode can deliver high rate capability of 210.0 mAh g −1 at 5.0 A g −1 and stable capacities of 171.1 mAh g −1 at 1.0 A g −1 over 1000 cycles. The fast sodium storage capability should be promoted by the pseudo-capacitive contribution. And in the Sb@BCM-3//Na 3 V 2 (PO 4 ) 3 @C full cell, a capacity of 121.2 mAh g −1 can be retained at 0.1 A g −1 over 50 cycles. Moreover, the ex-situ X-ray diffraction measurement illustrates the alloying reaction mechanism and the high reversibility for the Sb@BCM-3, which can guarantee the high capacity and good cycling stability. This study offers a method to enhance Sb anode performance through interfacial bonding with carbon.
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICAL SCIENCES
·
2015
·Vol. 31
·期 7
·669-675
·
IF 1.394
Yan Kai,Zhu Yuhan,Cheng Ling,Zhang Jingdong
A novel photoelectrochemical strategy for the sensitive determination of p-nitrophenol (PNP) was developed using a glassy carbon electrode (GCE) modified with CdSe quantum dots (QDs) and DNA composite film (CdSe-DNA/GCE). Various surface analytical techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM), were employed to characterize the synthesized CdSe QDs and CdSe-DNA modified electrode. The interfacial behaviors of the modified electrodes were analyzed by electrochemical impedance spectroscopy (EIS), and the interaction between PNP and DNA was studied by UV-visible spectrometry. Due to the PNP-DNA interaction, CdSe-DNA/GCE exhibited a sensitive photocurrent response toward PNP under visible-light irradiation. The influencing factors, such as the concentration of DNA used for fabricating CdSe-DNA/GCE and the bias potential applied in the photoelectrochemical measurement, were investigated. Under the optimized conditions, the photocurrent on CdSe- DNA/GCE was linearly increased with the PNP concentration from 0.7 to 50 μmol L −1 , with a detection limit (3 S/N ) of 0.27 μmol L −1 . The proposed photoelectrochemical strategy was successfully applied to monitoring the degradation of PNP.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Mingjun Sun,Kuan Ding,Yujie Lu,Xiaopeng She,Yi Chen,Mengqing Wang,Cheng Zou,Xiaoyu Liu,Yong Zhou
Of diverse NH 3 gas-detection strategies applied in the fields of individual healthcare and industrial production, chemiresistive gas sensors gain the most popularity owing to the superior merits of low cost, convenient signal processing and high sensitivity. However, severe challenges still exist such as elevated operation temperature (>200 °C), limited sensitivity and unsatisfactory selectivity especially under low-concentration and high-humidity conditions. To overcome these hindrances, a sensing layer of black phosphorus nanosheets (BP)-modified α-MoO 3 nanoflakes was prepared in this work. After subtle optimization of ingredient composition and operation temperature, the composite sensor S2 could recognize NH 3 gas with the concentration spanning from 0.4 to 25 ppm at 40 °C. In particular, a larger mean response (27 % vs. ∼ 2.3 %) with a response/recovery speed of 275/388 s toward 10 ppm NH 3 and lower detection of limit (LoD, 0.4 ppm vs. 10 ppm) was achieved with respect to pure BP counterpart. In addition, excellent repeatability, selectivity, long-term stability and humidity-tolerant features were demonstrated for Sensor S2 . The improved sensing performance after α-MoO 3 incorporation was primarily ascribed to abundant p-n heterojunctions, excellent conductivity of BP and hydrophilic MoO 3 that mitigated the water corrosion effect on susceptible BP nanosheets. This work offers an alternative strategy for sensitive and low-temperature NH 3 detection, and well cater for the demanding requirements of high sensitivity and low-power consumption in the field of novel gas sensors applicable in the future Internet of Things and exhaled breath-oriented medical diagnosis.
✓ 已验证
DOI
高影响因子
Soft Matter
·
2015
·Vol. 11
·期 35
·7059-7065
·
IF 4.029
Lei Hou,Peiyi Wu
The UCST-type transition of poly(acrylamide-co-acrylonitrile) (P(AAm-co-AN)) (molar fraction of AN: 13.3%; PDI = 3.2) in H2O and D2O is explored and compared by applying turbidity, DLS as well as FTIR measurements. The transition temperature of P(AAm-co-AN) in D2O is observed to be almost 10 °C higher than that in H2O at the same concentration, demonstrating a dramatic solvent isotope effect. Such a phenomenon could be rooted from a stronger interaction among polymer chains in D2O than in H2O, as indicated from DLS results. It is also observed in second-derivative analysis of FTIR spectra in the ν(CO) region, where all CO groups participate in the formation of inter-/intra-chain hydrogen bonds (CO⋯H–N) in D2O while there is still part of relatively “free” CO groups in H2O. Moreover, we find in the temperature-dependent FTIR spectra that CN groups exhibit hydrating behavior while CO groups present increased inter-/intra-molecular hydrogen bonding interaction (CO⋯H–N) upon cooling, revealing the later process to be the driving force of the UCST-type transition.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FITOTERAPIA
·
2025
·
IF 2.6
Jiwen Wang,Yajing He,Mengqun Liu,Hanxiang Jiang,Dong Feng,Xinna Liu,Junbiao Yang,Xuzhe Zhou,Zhilong An,Yuanyuan Lu,Xiaoqian Jia,Chun Ge,Ying Wang
Methicillin-resistant Staphylococcus aureus (MRSA) presents a formidable challenge to public health, necessitating alternative strategies to address the superbug-related infections. This study systematically evaluates the antibacterial efficacy of Viridicatol, a compound isolated from the fermentation products of Penicillium crustosum derived from marine. Special emphasis was placed on its potent activity against MRSA USA300. Through a comprehensive suite of morphological, biophenotypic, genomic, and metabolomic analyses, we elucidate the mechanisms of action of this agent. Our findings reveal that Viridicatol exhibits significant bactericidal effects, primarily through the disruption of bacterial structural integrity and the induction of severe intracellular metabolic disturbances. These effects were further corroborated in an animal full-thickness wound infection model. Our study provides both a foundational understanding and mechanistic insight into Viridicatol, while also shedding light on the clinical control and management of MRSA.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF BIOMATERIALS APPLICATIONS
·
2015
·
IF 2.197
Yan-Ling Luo,Yuan Wang,Xuan Wang,Feng Xu,Ya-Shao Chen
Tribrachia star-shaped random copolymers with tunable thermosensitive phase transition temperature were designed and synthesized via a simple one-pot ammonolysis reaction approach with trimesic acid as cores. The self-assembly micellization behavior of the copolymers in aqueous solution was examined by surface tension, UV–vis transmittance, transmission electron microscope, and dynamic light scattering measurements, etc. The results indicated that the resultant copolymers formed thermosensitive micelle aggregates through hydrophobic interactions among the isopropyl groups of poly(N-isopropylacrylamide) PNIPAM chains and inter-star association at a polymer concentration above critical aggregation concentrations from 4.06 to 6.55 mg L−1, with a cloud point range from 36.6℃ to 52.1℃, and homogeneously distributed micelle size below 200 nm. The arm length and the compositional ratios of the two comonomers had effect on physicochemical properties of the polymer micelle aggregates. Particularly, the cloud point values were enhanced as the (N,N-dimethylacrylamide) DMAM monomer was introduced and reached to 36.6℃ and 41.0℃–44.7℃ when the mass ratio of NIPAM to DMAM was 90:10 and 80:20, respectively. The thermo-triggered drug release and cytotoxicity were evaluated to confirm the applicability of the random copolymer micelle aggregates as novel drug targeted release carriers.
✓ 已验证
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2021
·Vol. 29
·期 1
·1289-1300
·
IF 4.223
Huang Tao,Du Jing,Yu Danni,Deng Shihan,Zhang Shuwen,Liu Longfei
Aqueous Fe(II)-catalyzed activation commonly deteriorates the oxidation performance of persulfate (PS) to the treatment of organic contaminants. In this study, a PS-doped layered bimetallic hydroxide (Fe–Mn hydroxide) was synthesized to construct a heterogeneously catalytic system to solve the issue brought by homogeneity. The molar ratio of Fe(II) to Mn(II) and the mass ratio of PS to Fe–Mn hydroxide both had a significant impact on the catalytic degradation of p-CP. Reaction temperatures engaged in the most essential role in influencing the degradation and removal of p-chlorophenol (p-CP). The optimal combination of factors for the preparation of PS-hydroxide and the treatment of p-CP was finally determined by significance analysis. The degradation process was appropriately fitted by the pseudo-first-order kinetic model. The benzene ring in p-CP was broken by PS-hydroxide during the adsorption. The surface modification of PS-hydroxide caused by the valence transition of Mn was beneficial to the adsorption and catalytic degradation of p-CP.
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2020
·
IF 7.489
Jingwei Huang,Tingting Liu,Rongfang Wang,Mingyi Zhang,Lei Wang,Houde She,Qizhao Wang
Cobalt oxide is an excellent water oxidation cocatalyst used in photoelectrochemical (PEC) water splitting field. Finding a facial way to load cobalt oxide on a semiconductor anode is important to effectively realize PEC water splitting on a large scale. In this work, a simple impregnation and calcination method is developed to fabricate CoO x /BiVO 4 anode. The constructed CoO x /BiVO 4 anode provides a photocurrent of 3.1 mA cm −2 at 1.23 V vs. RHE, about 2.8 times that of BiVO 4 anode (1.1 mA cm −2 ). Furthermore, both the charge separation and injection efficiency are improved by loading CoO x nanoparticles onto the BiVO 4 layer. Importantly, input voltage–output current characteristic curves are used for the first time to prove the formation of p-n junction between CoO x and BiVO 4 , which benefits to the separation of photogenerated holes and electrons. All results indicate that the impregnation and calcination method is efficacious for facile fabrication of CoO x /BiVO 4 photoanode with high performance.
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Shun Yang,Zhigang Hao,Shaohua Zhang,Yanjun Gao,Xiangyang Li,Jiong Peng,Lijie Li,Xin Li
An exquisitely designed nanostructure and hybridizing with heteroatom-doped carbon can significantly improve the electrochemical performance of the transition metal sulfides (TMSs). Herein, three-dimensional (3D) hollow N, P, S codoped carbon (NPSC) shells encapsulated with uniformly dispersed cobalt sulfide nanoparticles (Co1–xS/HNPSCS) are synthesized for supercapacitors (SCs) by the sulfuration and carbonization of poly(cyclotriphosphazene-co-4,4′-sulfonyldiphenol) (PZS)-functionalized cobalt-based zeolitic imidazolate framework-67 (ZIF-67). The PZS protects the ZIF-67 from collapsing and convert it in situ into NPSC shells, which are conducive to exposing abundant active sites and accelerating the kinetics of electrochemical reactions. As a result, the Co1–xS/HNPSCS presents an unrivaled specific capacity of 1058.9 C g–1 at 1 A g–1. The assembled Co1–xS/HNPSCS//AC hybrid SC (HSC) demonstrates a remarkable energy density of 57.8 W h kg–1 at a power density of 375 W kg–1. Density functional theory calculations show that the synergy between the Co1–xS and NPSC can optimize the electronic configuration, improve the conductivity, and enhance the adsorption of OH– on the surface of the electrode material. Besides, the quantum capacitance of the carbon layer is also increased by N, P, S codoping. This work exhibits an effective strategy to fabricate TMS/HNPSCS and offers theoretical and methodological guidance for the study of NPSC coating materials.
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2022
·
IF 7.968
Zhe Su,Shunyan Ning,Zengyuan Li,Shichang Zhang
A silica-polymer-based adsorbent ( iso Pentyl-BTBP/SiO 2 -P) was prepared via a vacuum impregnation method for efficient and continuous separation of palladium from complex systems. The results revealed that the distribution coefficient ( K d ) value of iso Pentyl-BTBP/SiO 2 -P toward Pd in 3 M HNO 3 solution was 5226 mL/g, with a maximum adsorption capacity of 31.7 mg/g. Besides, iso Pentyl-BTBP/SiO 2 -P exhibited a superior adsorption selectivity toward Pd to the other 14 coexisting interfering fission product ions, with the separation factor SF Pd/M value over 433 in 0.1–6 M HNO 3 solution. Moreover, column experiments results demonstrated that iso Pentyl-BTBP/SiO 2 -P can efficiently separate Pd with approximately 100% recovery, from simulated high level liquid waste (HLLW) solutions with multiple competing ions. Finally, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy analysis results revealed strong interactions between nitrogen-containing functional groups (C-N C) and Pd throughout the adsorption process , wherein the NO 3 − acting as the counterions to balance the charge. In conclusion, iso Pentyl-BTBP/SiO 2 -P has shown promising applications for effectively separating Pd from multi-component and highly acidic environments.
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2018
·
IF 4.229
Jiqiong Lian,Yihui Wu,Houan Zhang,Siyong Gu,Zhiwei Zeng,Xiaoyun Ye
Design of inexpensive and highly efficient bifunctional electrocatalyst is paramount for overall water splitting . In this study, amorphous Ni–Fe–P alloy was successfully synthesized by one-step direct-current electrodeposition method. The performance of Ni–Fe–P alloy as a bifunctional electrocatalyst toward both hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) was evaluated in 30 wt% KOH solution. It was found that Ni–Fe–P alloy exhibits excellent HER and OER performances, which delivers a current density of 10 mA cm −2 at overpotential of ∼335 mV for HER and ∼309 mV for OER with Tafel slopes of 63.7 and 79.4 mV dec −1 , respectively. Moreover, the electrolyzer only needs a cell voltage of ∼1.62 V to achieve 10 mA cm −2 for overall water splitting. The excellent electrocatalytic performance of Ni–Fe–P alloy is attributed to its electrochemically active constituents, amorphous structure, and the conductive Cu Foil.
✓ 已验证
DOI
高影响因子
Industrial Chemistry & Materials
·
2023
·Vol. 2
·期 1
·141-153
·
IF 0
Yiman Gu,Yanchao Zhang,Zhe Wang,Di Liu,Yan Wang,Tianming Dong,Song Wang,Zhanyu Li,Jingyi Wu,Yijia Lei
Research on anion exchange membrane fuel cells (AEMFCs) mainly focuses on the membrane module, and improving its performance has always been the focus of researchers. To create high-performance anion exchange membranes (AEMs), a series of side chain type AEMs were prepared by introducing different proportions of side chains containing anisotropic poly cations with relatively stable piperidinium ring cations and side quaternary ammonium cations as cation groups, using poly(p-terphenyl isatin) (PTI), a main chain polymer without aryl ether bonds. The dense surface of the PTI-N-n series membranes is shown by SEM images; TEM images show that the ion domains are clearly distributed in the membrane, so a continuous ion transport channel is constructed. PTI-N-100 has the highest hydroxide conductivity at 80 °C, reaching 96.83 mS cm−1 due to multiple transport sites. The PTI-N-100 membrane has a peak power density of 180 mW cm−2 based on the highest ionic conductivity. Therefore, we believe that the introduction of multi-cations contributes to the performance of anion exchange membranes.
✓ 已验证
DOI
危险品化学品经营许可证（带存储）