Small Methods
·
2023
·
IF 12.4
Chunlai Song,Qiang Wang,Ruihang Wen,Qiben Tang,Zhiqiang Luo,Zhihao Yuan
Benzoquinone (BQ) is considered to be a desirable cathode material for aqueous zinc-based batteries. The major limitations of BQ electrode are the severe sublimation and poor electrical conductivity, which results in serious mass loss during electrode preparation and inferior rate performance. In this study, iodine (I 2 ) species are utilized as an efficient catalyst for the highly reversible conversion of BQ/BQ 2− couple in the Zn-BQ battery system, wherein N-doped porous carbon is employed as a host material for anchoring the BQ molecule. In the combination electrode (denoted as BQ-I@NPC) with 1wt% I 2 additive where I 2 can serve as a carrier to accelerates the Zn 2+ transmission, and reduce the voltage hysteresis of the electrode. As a result, the BQ-I@NPC cathode delivers a high specific capacity of ≈482 mAh g −1 at 0.25 A g −1 , realizing a high energy density of 545 Wh kg −1 (based on BQ), which is the highest values among reported organic cathode materials for aqueous Zn-based batteries. Also, a high BQ loading (8 mg cm −2 ) can be attained, and achieving a superior cycling stability with a capacity retention of ≈80% after 20,000 times at 10 C. The work proposes an effective approach toward high performance organic electrode materials.
研究领域:
材料科学
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化学工程
·
能源技术
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DOI
PubMed
高影响因子
Nanomaterials
·
2018
·Vol. 8
·期 2
·103
·
IF 3.504
Ying Wu,Jixiao Wang,Bin Ou,Song Zhao,Zhi Wang,Shichang Wang
Electrochemical polymerization of aniline is one of the most promising methods to prepare polyaniline (PANI) materials. However, during this process, the electrolyte solution must be replaced after electropolymerization of a certain time because of the generation and the accumulation of the by-products, which have significant effects on the morphology, purity and properties of PANI products. Treatment and recycling of the used electrolyte solution are worthwhile to study to reduce the high treatment cost of the used electrolyte solution containing aniline and its polymerization by-products. Here, the composition of the used electrolyte solution was separated and determined by high performance liquid chromatography coupled with diode array detection (HPLC-DAD) in the range of ultraviolet and visible (UV-Vis) light. The analysis results revealed that the used electrolyte solution consisted of aniline, p-hydroquinone (HQ), p-benzoquinone (BQ), co-oligomers of aniline and p-benzoquinone (CAB) and acid. Then, n-octanol and 2-octanone were selected as extracts to remove HQ, BQ and CAB from the used electrolyte solution. Following that, the recycled electrolyte solution was prepared by adjusting the concentration of aniline and acid of the aqueous phase, and the electrochemical polymerization process was conducted. Finally, the obtained PANI was characterized by scanning electron microscope (SEM) and electrochemical methods. The experimental results clearly demonstrate that the morphology and specific capacitance of PANI produced from the recycled electrolyte solution can be recovered completely. This research paves the way for reusing the used electrolyte solution for aniline electrochemical polymerization.Keywords:polyaniline nanowires;electrochemical polymerization;p-benzoquinone;supercapacitor;extraction
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2021
·
IF 4.098
Lan Li,Meiling Fu,Deyuan Yang,Yifeng Tu,Jilin Yan
A method for a sensitive fluorescence detection of glutathione was established. Glutathione-stabilized copper nanoclusters (CuNCs) were synthesized via a facile process. These CuNCs showed blue fluorescence with a peak around 450 nm. In the presence of p-benzoquinone (PBQ), the electron transfer from the copper nanoclusters to PBQ quenched the fluorescence of the CuNCs. Glutathione (GSH), as a reducing agent, formed a complex with PBQ. This formation inhibited the quenching from PBQ, and a restored fluorescence was obtained. This interaction provided a fluorescence enhancement for the measurement of GSH. Under the optimal condition, linear responses were obtained toward GSH in the ranges of 0.06–6.0 μM, with a limit of detection at 20 nM. This developed assay was easy in operation with high sensitivity and selectivity. The applicability was approved with successful glutathione measurements in real samples.
研究领域:
分析化学
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纳米技术
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Fengming Zhao,Huadong Hu,Lili Zhao,Hui Yan,Huihui Zhou,Yinghong Zhu,Youqun Chu
A real-time p-benzoquinone (PBQ) sensor with simplified fabrication was developed and integrated with organic electrosynthesis for in situ detection during electrochemical production. The portable microneedle sensor was constructed using a self-supporting nanoporous gold wire substrate, fabricated through a two-step process: anodization under fluoride ion modulation, and followed by chemical reducing in a mixed solution of ascorbic acid and SnCl 2 . The introduction of fluoride ions during the anodization significantly enhanced the electrochemical detection performance (83 % PBQ reduction property improvement), attributed to their strong coordination capability in pore structure engineering. The sensor's detection range (5.56 μM-1.53 mM) was designed to encompass both initial and terminal PBQ concentrations in typical production processes. Comparative validation with HPLC demonstrated a measurement accuracy of ±3.9 %, maintaining precision in both blank matrices and complex reaction mixtures containing additives. Key performance metrics included 1.0 second response time and sustained operational stability over 7 continuous days (<5 % signal attenuation). The device exhibited exceptional selectivity against common coexisting species: phenol (99 % recovery), resorcinol (92.8 %), catechol (CT, 94.8 %), hydroquinone (HQ, 98.9 %), maleic acid (MH, 91.6 %), and oxalic acid (OA, 90.4 %). This methodology establishes a prototype for adaptive chemical monitoring platforms, demonstrating significant potential for real-time process analytics in diverse electrochemical synthesis applications.
研究领域:
分析化学
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电化学
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材料科学
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产品关联
DOI
高影响因子
TALANTA
·
2021
·
IF 6.057
Weiliang Xue,Na Li,Zhuomin Zhang,Gongke Li
Trace disinfection by-products (DBPs) produced during the disinfection of drinking water are potentially carcinogenic , teratogenic and mutagenic, which has aroused much attention recently. In this study, a molecularly imprinted (MIP) solid -phase microextraction (SPME) fiber coating was prepared by an in-situ polymerization method using a dummy template molecule for the analysis of trace 2,6-dichloroindole-1,4-benzoquinone (2,6-DCBQ), a typical DBP. The characterization results suggested that this monolithic SPME fiber under the optimized conditions had the porous structure, large surface area and good thermal stability. Due to the strong structural recognition and molecular interaction between MIP SPME coating and target molecule, it showed good extraction selectivity and capacity to trace 2,6-DCBQ with an imprinting factor of 4.7. Then, coupling with high-performance liquid chromatography (HPLC)-ultraviolet (UV) detection, a sensitive analytical method for trace 2,6-DCBQ in water samples was successfully established with a detection limit down to 2.3 ng/mL. The recoveries of the proposed method were in range of 84.4–122% with the relative standard deviations of 1.0–13% (n = 3). The results showed that this MIP SPME-HPLC-UV method possessed high analytical selectivity and sensitivity for trace 2,6-DCBQ in water, which would benefit the improvement of the practicability of DBPs monitoring and detection methodology.
研究领域:
环境科学
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分析化学
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产品关联
DOI
PubMed
高影响因子
MOLECULES
·
2022
·Vol. 27
·期 22
·7962
·
IF 4.927
Shuhan Chen,Wei Wen,Xue Zhao,Zelang Zhang,Weishuang Li,Yaoyao Zhang,Bojie Li,Lei Zhu
Here, we describe the preparation of copper nanoparticles that are stabilized on a chitosan composite film (CP@Cu). This material could catalyze the 1,6-hydroboration reactions ofp-quinone methides with B2pin2as a boron source under mild conditions. This reaction exhibited very good functional group compatibility, and the organoboron compounds that were formed could easily be converted into corresponding hydroxyl products with good to excellent yields. This newly developed methodology provides an efficient and sequential pathway for the synthesis ofgem-disubstituted methanols.Keywords:copper nanoparticles;chitosan composite film;hydroboration reactions;p-quinone methides;organoboron compounds
研究领域:
化学
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材料科学
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有机合成
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产品关联
DOI
PubMed
高影响因子
ENVIRONMENT INTERNATIONAL
·
2025
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IF 9.7
Zirui Liu,Dehua Ma,Qiang Cheng,Aroob Abid,Shuaijie Zhao,Chenyi Li,Qingzhuo Niu,Min Zheng
p- Benzoquinone analogues, a class of ubiquitous oxidation byproducts, are increasingly detected in effluents from various oxidative treatment systems. While halogenated derivatives have received substantial research attention, the ecotoxicological impacts of non-halogenated analogues—particularly in vivo —remain poorly characterized. This study systematically compared the toxicity of 2,6-dichloro- p -benzoquinone (2,6-DCBQ) and 2,6-dimethyl- p -benzoquinone (2,6-DMBQ) using zebrafish embryos. 2,6-DMBQ exhibited comparable lethality to 2,6-DCBQ (48 h EC 50 = 221.72 vs. 169.17 μg/L), with developmental malformations of cardiac edema and notochord malformation mainly emerging in juvenile fish at 250 μg/L. Exposure to 2,6-DCBQ of 2.5 μg/L and 2,6-DMBQ of 25 μg/L induced significant oxidative stress, elevating reactive oxygen species (ROS) levels and upregulating antioxidant enzymes of total superoxide dismutase, catalase, and glutathione peroxidase. PCR gene chip analysis showed that 23 oxidative stress-related genes were coordinately upregulated in both treatment groups. Co-exposure with N-acetylcysteine (20 μM) or Na 2 SO 3 (Na 2 SO 3 : p -BQs = 10:1) synergistically mitigated toxicity of 2,6-DCBQ and 2,6-DMBQ at 250 μg/L, restoring morphological and biochemical endpoints to control levels. Electron paramagnetic resonance confirmed semiquinone radicals and hydroxyl radicals as key drivers of ROS amplification. These findings establish radical-mediated mechanisms as critical toxicological pathways and inform risk management strategies for quinoid byproducts in water treatment systems.
研究领域:
环境毒理学
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水处理化学
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分子生态毒理学
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发育毒理学
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自由基生物学
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产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2021
·Vol. 12
·期 1
·1-9
·
IF 14.919
Lin Zirui,Shi Hua-Yu,Lin Lu,Yang Xianpeng,Wu Wanlong,Sun Xiaoqi
Rechargeable aqueous zinc-organic batteries are promising energy storage systems with low-cost aqueous electrolyte and zinc metal anode. The electrochemical properties can be systematically adjusted with molecular design on organic cathode materials. Herein, we use a symmetric small molecule quinone cathode, tetraamino-p-benzoquinone (TABQ), with desirable functional groups to protonate and accomplish dominated proton insertion from weakly acidic zinc electrolyte. The hydrogen bonding network formed with carbonyl and amino groups on the TABQ molecules allows facile proton conduction through the Grotthuss-type mechanism. It guarantees activation energies below 300 meV for charge transfer and proton diffusion. The TABQ cathode delivers a high capacity of 303 mAh g −1 at 0.1 A g −1 in a zinc-organic battery. With the increase of current density to 5 A g −1 , 213 mAh g −1 capacity is still preserved with stable cycling for 1000 times. Our work proposes an effective approach towards high performance organic electrode materials.
研究领域:
材料科学
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电化学
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能源存储
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产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Yujiao An,Xiaowan Li,Zihao Liu,Zhilan Wang,Xiaoquan Lu
Quinones, widely considered as environmental pollutants in wastewater, have been identified as redox-active substances capable of activating persulfate for decontamination purpose. However, the mechanism of peroxydisulfate (PDS) activation by quinones under alkaline conditions remains elusive. In this study, methyl- p -benzoquinone (MBQ) was chosen as a model quinone to elucidate the intrinsic mechanism of activating PDS. The results showed that MBQ/PDS system can effectively degrade atrazine (ATZ) under alkaline conditions (especially at pH 10.5) and achieve simultaneous removal of MBQ. Derivatization analysis, quenching experiments and electron spin resonance tests revealed that the self-transformation product of MBQ, methyl-semiquinone radical (MSQ − ), played a major role in activating PDS while alkali served as an auxiliary activator. Specifically, MSQ − functioned as a mediator in PDS activation, regulating the generation of sulfate radical (SO 4 − ) and hydroxyl radical ( OH), thereby inducing the degradation of ATZ through free radical pathways. Two degradation pathways of ATZ were proposed based on UPLC-Q-TOF-MS analysis and DFT calculation. ECOSAR evaluation indicated MBQ/PDS system can detoxify ATZ, yet it remains imperative to concern the formation of more toxic by-products. Furthermore, MBQ/PDS system exhibited strong resistance to water matrixes (excluding Cl − ) and favorable degradation capabilities towards diverse contaminants. This work broadened the possibility of applying the persulfate system in actual water bodies with alkaline environments, achieving the dual benefit of degrading target contaminants and simultaneously removing the activator quinones themselves, providing a novel “treating pollution with waste” water treatment strategy.
研究领域:
环境化学
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水处理
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污染物降解
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产品关联
DOI
高影响因子
Food & Function
·
2020
·Vol. 11
·期 5
·4193-4201
·
IF 4.171
Xianghe Meng,Chaosheng Xia,Qin Ye,Xiaohua Nie
tert-Butyl-p-benzoquinone (TBBQ), a metabolite of tert-butylhydroquinone from food, has cytotoxicity, the underlying mechanism of which is not clear. In this study, the viability of RAW 264.7 cells exposed to TBBQ at concentrations of 0.5–10 μg mL−1 was assayed by MTT. Results suggest that TBBQ decreased the viability in a dose-dependent manner. Monodansylcadaverine (MDC) staining results indicate the occurrence of autophagy induced by TBBQ, which was manifested by activation of LC3-II concurrent with the increased levels of Beclin1 and reduced levels of p62. Elevated lipid peroxide and decreased SOD activity by TBBQ exposure suggest the overproduction of ROS, which may account for the increase in the genotoxic stress protein p53. Both upregulation of p53 and reduction of Akt levels inhibited mTOR, which activated autophagy. Addition of 3-MA counteracted the impact of TBBQ on ATG proteins and cell viability. All of these results suggest that TBBQ induces autophagy of RAW 264.7 cells principally by inhibition of the Akt/mTOR signaling pathway, and they implicate ROS in this regulation.
研究领域:
药理学
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细胞生物学
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毒理学
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产品关联
DOI
PubMed
高影响因子
Nature Chemistry
·
2025
·
IF 20.2
Hu Yang,Su Han,Fu Jiamin,Luo Jing,Yu Qihang,Zhao Feipeng,Li Weihan,Deng Sixu,Liu Yu,Yuan Yi,Gan Yi,Wang Yijia,Kim Jung Tae,Chen Ning,Shakouri Mohsen,Hao Xiaoge,Gao Yingjie,Pang Tianlu,Zhang Nian,Jiang Ming,Li Xia,Zhao Yang,Tu Jiangping,Wang Changhong,Sun Xueliang
Organic electrode materials offer a versatile, sustainable approach for next-generation lithium-ion batteries but are limited by low working voltages and poor cycling stability. Here we report a solid-solvation-structure design strategy to improve both the voltage and stability of organic electrode materials in all-solid-state batteries. As a proof of concept, we incorporate halide electrolytes as solid solutes and tetrachloro- o -benzoquinone as a solid solvent to form homogeneous solid cathode solutions. Systematic optimization of the inner solvation configuration enables tetrachloro- o -benzoquinone to achieve a high working voltage (3.6 V vs. Li + /Li) at room temperature within an asymmetric solid solvation sheath. Moreover, the equilibrium redox pathway and electrostatically driven self-healing interfaces revealed rapid redox kinetics and stable performance over 7,500 cycles in all-solid-state batteries under low stack pressures. This work demonstrates that organic electrode materials can serve as viable, durable and cost-effective alternatives to transition metal oxides in all-solid-state batteries.
研究领域:
储能
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材料科学
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电化学
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固态化学
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电池技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Carbon Neutralization
·
2023
·Vol. 2
·期 6
·738-745
·
IF 0
Dabei Wu,Joseph Nzabahimana,Xianluo Hu
The development of organic lithium batteries (OLBs) offers a promising opportunity for the advancement of green and sustainable energy storage systems. However, organic cathode materials face challenges in terms of conductivity, electrochemical activity, and dissolution. Here, we address these limitations by introducing a sulfur-linked carbonyl compound called poly(dichlorobenzoquinone sulfide) (PDBS), which is polymerized in situ on reduced graphene oxide by a mixed solvent thermal method. The resulting carbonyl compound electrode materials exhibit favorable properties as organic cathode materials for OLBs. After 4000 cycles at a current density of 1000 mA g −1 , the carbonyl compound electrodes exhibit a discharge capacity of 102 mAh g −1 . This remarkable performance indicates excellent stability and long cycle life, which are crucial for practical applications. These results suggest that PDBS, a designable sulfur-linked carbonyl compound, holds great promise as an effective organic cathode material for OLBs. In addition, this work provides valuable insights into improving the electrochemical performance of organic cathode materials.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米复合材料
·
有机电极材料
✓ 已验证
DOI
危险品化学品经营许可证（带存储）