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Journal of Energy chemistry 2025年第1期100卷 215-225页

作者： Jiaye Li Shuang Pan Yihuang Chen Qiong Liu College of chemistry and Materials Engineering Wenzhou University Guangdong provincial key laboratory of Chemical Measurement and Emergency Test Technology (China) Institute of Analysis Guangdong Academy of Sciences (China National Analytical CenterGuangzhou)

Photocatalytic oxygen reduction for hydrogen peroxide （H2O2） synthesis presents a green and costeffective production ***,achieving highly selective H2O2synthesis remains challenging,necessitating precise control over free radical reaction pathways and minimizing undesirable oxidative ***,we report for the visible light-driven simultaneous co-photocatalytic reduction of O2to H2O2and oxidation of biomass using the atomic rubidium-nitride modified carbon nitride（CNRb）.The optimized CNRb catalyst demonstrates a record photoreduction rate of 8.01 mM h-1for H2O2generation and photooxidation rate of 3.75 mM h-1for furfuryl alcohol to furoic acid,achieving a remarkable solar-to-chemical conversion （SCC） efficiency of up to 2.27%.Experimental characterizations and DFT calculation disclosed that the introducing atomic Rb–N configurations allows for the high-selective generation of superoxide radicals while suppressing hydroxyl free radical *** is because the Rb–N serves as the new alternative site to perceive a stronger connection position for O2adsorption and reinforce the capability to extract protons,thereby triggering a high selective redox product *** study holds great potential in precisely regulating reactive radical processes at the atomic level,thereby paving the way for efficient synthesis of H2O2coupled with biomass valorization.

关键词： Free radical reactions

Investigation on property and mechanism of redox wave of methylhesperidine at Hg electrode

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science China chemistry 2005年第z1期48卷 20-24页

作者： ZHENG Jianbin MENG Zuchao ZHANG Hongfang institute of analytical science/shaanxi provincial key laboratory of electroanalytical chemistry Northwest University Xi'an 710069 China Institute of Analytical Science/Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Northwest University Xi'an 710069 China Institute of Analytical Science/Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Northwest University Xi'an 710069 China

The voltammetric behaviors of methylhesperidine (MH) were studied by means of linear sweep voltammetry, cyclic voltammetry and normal pulse voltammetry. In the Brit ton-Robinson buffer solutions with pH values from 2.05 to 6.37, MH could yield three reduction waves PC1, PC2 and PC3. PC1 wave is an adsorptive pre-wave. PC2 wave is an irreversible reduc tion of pre-protonated MH involving one electron and one proton. PC3 wave is an irreversible wave of reduction species radical of MH involving one electron.

关键词： voltammetric behavior, polarography, mechanism, reduction, methylhesperidine.

Progress in oscillographic chronopotentiometry

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science China chemistry 2005年第z1期48卷 1-8页

作者： GAO Hong ZHANG Hongfang ZHOU Yuanzhen ZHENG Xiaohui ZHENG Jianbin institute of analytical science/shaanxi provincial key Lab of electroanalytical chemistry Northwest University Xi'an 710069 China Institute of Analytical Science/Shaanxi Provincial Key Lab of Electroanalytical Chemistry Northwest University Xi'an 710069 China Institute of Analytical Science/Shaanxi Provincial Key Lab of Electroanalytical Chemistry Northwest University Xi'an 710069 China Institute of Analytical Science/Shaanxi Provincial Key Lab of Electroanalytical Chemistry Northwest University Xi'an 710069 China Institute of Analytical Science/Shaanxi Provincial Key Lab of Electroanalytical Chemistry Northwest University Xi'an 710069 China

The investigation on oscillographic chronopotentiometry after 2000 is reviewed. The development course of oscillographic chronopotentiometry is looked back. Some new instrumentations and new methods about oscillographic chronopotentiometry as well as applications of chemometrics in oscilloanalysis are introduced. The prospects of oscillographic chronopotentiometry development are also discussed in this paper.

关键词： virtual instrument, chemometrics, oscillographic chronopotentiometry, oscillographic analysis.

Investigation on Voltammetric Behavior of Camptothecin and Its analytical Application

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Chinese Journal of chemistry 2006年第4期24卷 551-556页

作者：郑建斌孟祖超刘波张宏芳 shaanxi provincial key laboratory of electroanalytical chemistry Institute of Analytical Science Northwest University Xi'an Shaanxi 710069 China

The voltammetric behavior of camptothecin （CPT） in Britton-Robinson （B-R） buffer solutions （pH 2.09-9.07） was studied by the means of linear sweep voltammetry （LSV）, cyclic voltarnmetry （CV） and normal pulse voltammetry （NPV） at a hanging mercury drop electrode. In different pH range of B-R buffer solutions, CPT could cause three reduction waves. In B-R buffer solutions （pH 2.09-5.46）, wave P1 yielded by CPT was a two-electron wave. Between pH 6.01 and 9.07, CPT could yield two reduction waves P2 and P3. In addition, the pure CPT obtained from camptotheca acumina grown only in China was determined by NPV, and a linear response was observed in the range of 2.0 × 10^-3-4.0 × 10^-2 mmol·L^-1 with a 0.9991 correlation coefficient and a 8.0 × 1^-4 mmol·L^-1 detection limit for CPT.

关键词： camptothecin drug analysis catalytic hydrogen wave mercury electrode voltammetry

Synthesis of hollow Prussian blue cubes as an electrocatalyst for the reduction of hydrogen peroxide

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Frontiers of Materials science 2017年第2期11卷 147-154页

作者： Qinglin SHENG Dan ZHANG Yu SHEN Jianbin ZHENG institute of analytical science Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Northwest University Xi'an 710069 China

A cubic Prussian blue （PB） with the hollow interior was successfully synthesized by direct dissociation followed by a controlled self-etching process. The etching process also made hollow Prussian blue （HPB） a porous structure. SEM, TEM and XRD were employed to confirm the structure and morphology of the prepared materials. Then HPB and chitosan （CS） were deposited on a glassy carbon electrode （GCE）, used to determine H202. The amperometric performance of HPB/CS/GCE was investigated. It was found that the special structure of HPB exhibits enhanced performance in the H202 sensing.

关键词： Prussian blue hollow structure hydrogen peroxide sensor non-enzyme electrocatalyst

Investigation on Electrochemical Behavior and Scavenging Superoxide Anion Ability of Chrysin at Mercury Electrode

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Chinese Journal of chemistry 2005年第8期23卷 1042-1046页

作者：郑建斌张宏芳高鸿 institute of analytical science Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Northwest University Xi'an Shaanxi 710069 China

The electrochemical behavior of chrysin in pH 2.0-9.0 Britton-Robinson （B-R） buffer solutions was studied by the means of linear sweep voltammetry and cyclic voltammetry at a static mercury drop electrode. In different pH range of B-R buffer solutions, chrysin could cause four reduction waves. In pH 2.0-5.8 B-R buffer solutions, wave P1 yielded by chrysin is a one-electron reduction wave, and wave P1 caused by further reduction of the products of wave P1 in pH〈3.0 B-R buffer solution is also a one-electron reduction wave. But in 3.0〈pH〈5.8 B-R buffer solution wave P1 was overlapped by the hydrogen wave. Between pH 5.8 and 9.0, chrysin could yield two reduction waves P2 and P3- The former is an irreversible adsorptive wave of ionized chrysin involving one electron and the latter is also an irreversible adsorptive wave of reduction intermediate radical of chrysin involving one electron and one proton. And a linear relationship between ip3 and the concentration of chrysin can be established from 1.0×10^-6 to 4.0×10^-5 mol·L^-1 （r=0.9924） with the detection limit of 5×10^-7 mol·L^-1. In addition, the antioxidant ability of chrysin was investigated by linear sweep voltammetry （LSV）. The determination result of IC50 of chrysin showed that chrysin is a good antioxidant.

关键词： chrysin pyrogallol superoxide anion radical mercury electrode voltammetry

A MnOOH-Polyaniline Nanocomposite Modified Gold Electrode for Electrochemical Sensing of Nitrite

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Chinese Journal of chemistry 2017年第8期35卷 1317-1321页

作者： Yu Shen Jian Zhang Qinglin Sheng Jianbin Zheng institute of analytical science Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Northwest University Xi'an Shaanxi 710069 China

A novel non-enzymatic nitrite sensor was fabricated by immobilizing MnOOH-PANI nanocomposites on a gold electrode （Au electrode）. The morphology and composition of the nanocomposites were investigated by transmission electron microscopy （TEM） and Fourier transform infrared spectrum （FTIR）. The electrochemical results showed that the sensor possessed excellent electrocatalytic ability for NO2 oxidation. The sensor displayed a linear range from 3.0 μmol·L^-1 to 76.0 mmol·L^-1 with a detection limit of 0.9 μmol·L^-1 （S/N=3）, a sensitivity of 132.2 μA·L·mol^-1·cm^-2 and a response time of 3 s. Furthermore, the sensor showed good reproducibility and long-term stability. It is expected that the MnOOH-PANI nanocomposites could be applied for more active sensors and used in practice for nitrite sensing.

关键词： electrochemical sensor nanocomposites polyaniline MnOOH nitrite

Phenylboronic acid and dopamine as probe set for electrochemical detection of saccharides

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Chinese Chemical Letters 2013年第4期24卷 291-294页

作者： Jian Li Ya-Qin Sun Yin-Mao Wei Jian-Bin Zheng institute of analytical science/shaanxi key laboratory of electroanalytical chemistry Northwest University

A novel electrochemical approach for detection of saccharides via indicator displacement assay was presented. In this system, 2-fluorophenylboronic acid and dopamine （DA） were performed as probe set. The electrochemical properties of DA and the binding to 2-fluorophenylboronic acid in phosphate buffer at different pH values were investigated by cyclic voltammetry. After addition of fructose to the solution, a competition for the binding 2-fluorophenylboronic acid occurred that led to the release of the DA. The regenerate oxidation current of DA increased with increasing fructose concentration. Under optimized experimental conditions, the peak current was linearly related to fructose concentration in the range of 0.3-5.0 mmol[L with a detection limit of 0.1 mmolJL In addition, the interaction between 2- fluorophenylboronic acid and other cis-diol compounds such as glucose, galactose and mannose was investigated.

关键词： ElectrochemistrySaccharidesDopaminePhenylboronic acidIndicator displacement assay

Fourier Self-deconvolution Using Approximation Obtained from Frequency Domain Wavelet Transform as a Linear Function

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Chinese Chemical Letters 2006年第3期17卷 380-382页

作者： Yuan Zhen ZHOU Jian Bin ZHENG institute of analytical science/shaanxi provincial key Lab of electroanalytical chemistry Northwest University Xi＇an 710069

A new method of resolving overlapped peak, Fourier self-deconvolution （FSD） using approximation CN obtained from frequency domain wavelet transform of F（ω） yielded by Fourier transform of overlapped peak signals f（t） as the linear function, was presented in this paper. Compared with classical FSD, the new method exhibits excellent resolution for different overlapped peak signals such as HPLC signals, and have some characteristics such as an extensive applicability for any overlapped peak shape signals and a simple operation because of no selection procedure of the linear function. Its excellent resolution for those different overlapped peak signals is mainly because F（ω） obtained from Fourier transform of f（t） and CN obtained from wavelet transform of F（ω） have the similar linearity and peak width. The effect of those fake peaks can be eliminated by the algorithm proposed by authors. This method has good potential in the process of different overlapped peak signals.

关键词： Fourier deconvolution wavelet transform signal processing HPLC signal

Investigation on a Small Oscillogram

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Chinese Chemical Letters 2005年第9期16卷 1249-1251页

作者： Hong Fang ZHANG Jian Bin ZHENG Hong Gang NI Hung KAO institute of analytical science/shaanxi provincial key Lab of electroanalytical chemistry Northwest University Xi＇an 710069

A small oscillogram, one end of which was substituted by a bright point caused by the redox of an appropriate depolarizer and the other end of which was the redox of Hg or the redox of supporting electrolyte cation, was investigated in this paper. Experimental results of application of the small oscillogram to oscillographic determination of cefoperazone showed that the small osciUogram was more stable, sensitive, and less interference than classical oscillogram.

关键词： Electroanalysis oscillographic analysis oscillogram