Article
Chemistry, Physical
Dan Wang, Sitan Li, Xiaoxin Zhang, Bo Feng, Yan Pei, Yunfeng Zhu, Wei Xu, Zhen-Hua Li, Minghua Qiao, Baoning Zong
Summary: In this study, a slightly nitrogen-doped carbon catalyst was synthesized using a simple method. The catalyst showed low overpotential and high selectivity in producing H2O2 in an acidic electrolyte, and stable H2O2 production was achieved. The relationship between the surface content of C-O/C-N and C=O species and the H2O2 partial current suggested that C atoms act as active sites for 2e-ORR to H2O2. The catalyst, with its inexpensive starting materials and excellent catalytic performance, may contribute to the development of an affordable, safe, and direct electrochemical process for O2-to-H2O2 conversion.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Applied
Basil Sabri Rawah, Wenzhen Li
Summary: The study presents a straightforward method for preparing cobalt-nitrogen-doped carbon using low-energy dry-state ball milling, followed by controlled pyrolysis. The material shows significant activity and selectivity in the oxygen reduction reaction, as well as stable durability.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Lina Sun, Liping Sun, Lihua Huo, Hui Zhao
Summary: A study has successfully synthesized porous carbon catalysts co-doped with nitrogen and oxygen by pyrolysis and oxidation. The catalyst exhibits high selectivity and generation rate for 2e(-) ORR, and the introduction of -COOH functional group enhances its performance. The study provides new insights for the production of H2O2 using MOF-derived carbon catalysts via electrocatalytic oxygen reduction.
Article
Chemistry, Multidisciplinary
Huihui Qi, Yunjie Zhou, Yi Li, Fan Liao, Zhenzhen Wang, Xiao Wang, Hui Huang, Mingwang Shao, Yang Liu, Zhenhui Kang
Summary: Introducing light into an electrocatalytic system can enhance the efficiency of electrocatalytic carbon dioxide reduction. A composite catalyst prepared for CO2RR under light conditions exhibited higher efficiency and lower overpotential. Studies show that activated CO2 forms intermediate CO2- in the electrocatalytic system under light, leading to highly efficient CO2RR.
Article
Chemistry, Multidisciplinary
Zhuangzhuang Wu, Junming Luo, Ying Liang, Xinxin Yu, Yuzhen Zhao, Yongpeng Li, Wenxin Wang, Zhuyin Sui, Xinlong Tian, Qi Chen
Summary: In this study, a new tetrazole-functionalized covalent organic framework (COF-TZ) was synthesized and applied to electrocatalytic oxygen reduction reaction (ORR) and selective H2O2 production. The COF-TZ showed high H2O2 yield and COF-TZ could effectively coordinate cobalt for use in Li-S batteries. This study provides a logical design of functional COFs and promotes the development of electrocatalytic H2O2 production and Li-S batteries.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Materials Science, Multidisciplinary
V. S. Haritha, S. R. Sarath Kumar, R. B. Rakhi
Summary: In this study, WS2 nanosheets were synthesized and used to modify glassy carbon electrodes for the detection and quantification of H2O2. The sensor showed good linearity, sensitivity, and selectivity in detecting H2O2. The practical utility of the WS2/GCE sensor for H2O2 probing was demonstrated.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Engineering, Chemical
Paulo Jorge Marques Cordeiro-Junior, Cristina Saez Jimenez, Marcos Roberto De Vasconcelos Lanza, Manuel Andres Rodrigo Rodrigo
Summary: This work presents the development and application of a gas diffusion electrode based on Printex L6 carbon for the production of high concentrations of hydrogen peroxide. The Printex L6 carbon-based electrode achieved significantly higher H2O2 concentrations compared to the Vulcan XC-72R carbon-based electrode, and also exhibited high stability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Min Zheng, Pengtang Wang, Xing Zhi, Kang Yang, Yan Jiao, Jingjing Duan, Yao Zheng, Shi-Zhang Qiao
Summary: Ampere-level CO2-to-C2+ electrolysis is achieved by heteroatom engineering on Cu catalysts, which demonstrates high CO2-to-C2+ productivity and Faradaic efficiency under a large current density.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Applied
Yachao Zeng, Gang Wu
Summary: Efficient production of hydrogen peroxide can prevent epidemics and provide an environmentally-friendly solution for on-site disinfection. The review discusses the efficacy of hydrogen peroxide in disinfection and highlights key factors for achieving efficient production. Future research should focus on advanced electrocatalysts and electrolytic cell design.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Runjia Lin, Liqun Kang, Karolina Lisowska, Weiying He, Siyu Zhao, Shusaku Hayama, Graham J. Hutchings, Dan J. L. Brett, Furio Cora, Ivan P. Parkin, Guanjie He
Summary: In this study, an approach based on construction-driven principle is proposed for the design of electrocatalysts, which can achieve selectivity of the 2e(-)-pathway in the oxygen reduction reaction (ORR), thus improving both activity and selectivity of the catalysts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Xuheng Li, Chunli Wang, Feng Liu, Zhihao Zhang, Jafar Ali, Qingwen Long, Jing Zhang
Summary: The MoS2 film electrode prepared by electrochemical deposition-annealing method successfully reduced the overpotential in the electrochemical reduction of Cr(VI), enhancing electron utilization and achieving a 99% reduction efficiency. In-situ generated hydrogen peroxide played a critical role in accelerating the reduction process. The selective oxygen reduction reaction on the MoS2 cathode, along with the preserved interfaces between 2H and 1T' in the heterophase MoS2, contributed to the high electrocatalytic activity and productivity of hydrogen peroxide.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Analytical
Jasmina Anojcic, Keerati Kullawanichaiyanan, Sanja Mutic, Valeria Guzsvany, Nararak Leesakul, Neda Mimica Dukic
Summary: In this study, a carbon paste electrode was modified with a previously synthesized iridium(III) complex and used as a working electrode for H2O2 amperometric determination. The modified electrode showed promising results for the analysis of H2O2, with a wide working potential range and good stability. The optimized amperometric method demonstrated good linearity and was successfully applied for the determination of H2O2 content in commercially available color cream developers.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Brianna N. Ruggiero, Kenzie M. Sanroman Gutierrez, Jithin D. George, Niall M. Mangan, Justin M. Notestein, Linsey C. Seitz
Summary: This study investigates the impact of electrolyte composition on the kinetics and mechanism of the oxygen reduction reaction (ORR) by monitoring local pH changes. The results demonstrate that local pH strongly dictates changes in mechanisms and performance, while the cation identity modulates local pH to influence these trends.
JOURNAL OF CATALYSIS
(2022)
Review
Chemistry, Physical
Yulin Wang, Geoffrey I. N. Waterhouse, Lu Shang, Tierui Zhang
Summary: This review highlights the recent advancements in homogenous and heterogenous catalysts for electrocatalytic O-2 reduction reaction (ORR) to H2O2, covering the basic principles of ORR and methodology for investigating ORR to H2O2. It discusses H2O2 production over homogenous catalysts and recent breakthroughs with heterogenous catalysts, emphasizing nonnoble metal-based nanomaterials, carbon materials, and single-atom catalysts. Challenges and opportunities for electrochemical ORR to H2O2 are also critically examined in the review.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zhaoquan Xu, Ziyu Ma, Kai Dong, Jie Liang, Longcheng Zhang, Yongsong Luo, Qian Liu, Jinmao You, Zhesheng Feng, Dongwei Ma, Yan Wang, Xuping Sun
Summary: In this study, outstanding nitrogen doped hollow carbon nanospheres were successfully synthesized for electrochemical production of hydrogen peroxide with high efficiency and selectivity. The nitrogen doped hollow carbon nanospheres exhibited superior catalytic activity and demonstrated high yield rate and faradaic efficiency in an H-cell system.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Ayemeh Bagheri Hashkavayi, Jahan Bakhsh Raoof
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2019)
Article
Chemistry, Multidisciplinary
Nastaran Ebrahimi, Jahan Bakhsh Raoof, Reza Ojani, Maryam Ebrahimi
Summary: Electroactive label crystal violet (CVi) was used as an intercalator for G-quadruplex (G4) DNA to achieve sensitive electrochemical detection of Tl+. The difference in DPV reduction peak currents of CVi before and after intercalation into G4 was linearly related to the concentration of Tl+, with a detection limit of 0.341 nM and good selectivity in real sample analysis of Tl+.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
Ayemeh Bagheri Hashkavayi, Jahan Bakhsh Raoof, Ki Soo Park
Article
Chemistry, Multidisciplinary
Rokhsareh Abedi, Jahan Bakhsh Raoof, Ayemeh Bagheri Hashkavayi, Maryam Asghari, Razieh Azimi, Mohammad Saeid Hejazi
Summary: An electrochemical DNA hybridization biosensor based on modified graphite screen-printed electrodes was developed for detection of short-sequence DNA of prostate cancer gene. The sensor demonstrated high selectivity and sensitivity in detecting the hybridization process through differential pulse voltammetric signals.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2022)
Article
Biochemistry & Molecular Biology
Tahereh Zahedi, Abasalt Hosseinzadeh Colagar, Habibollah Mahmoodzadeh, Jahan-Bakhsh Raoof
Summary: COX-2 over-activity can lead to inflammation, tumorigenesis, and angiogenesis. This study examined the effects of 166 missense mutations of COX-2 on protein features, with 44 of them identified as deleterious.
NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS
(2021)
Article
Biochemical Research Methods
Nastaran Ebrahimi, Jahan Bakhsh Raoof, Reza Ojani, Maryam Ebrahimi
Summary: This work presents a novel electrochemical biosensor for the detection of Ba2+ ions, utilizing G-quadruplex DNA and a Carbon Paste Electrode modified with Ag nanoparticles incorporated in reduced Graphene Oxide. The biosensor showed good selectivity towards Ba2+ ions in the presence of other metal ions and achieved a low Limit of Detection. It was successfully applied for the analysis of natural samples.
ANALYTICAL BIOCHEMISTRY
(2022)
Article
Chemistry, Analytical
Fariba Hasani, Jahan Bakhsh Raoof, Milad Ghani, Reza Ojani
Summary: This study focuses on the electrochemical deposition of copper benzene-1,4-dicarboxylate framework (Cu-BDC MOF) on a cheap pencil graphite substrate for solid-phase microextraction of pesticides. The technique showed good analytical performance and was successfully applied for pesticide quantification in various fruit juices and honey.
Article
Biochemical Research Methods
Nastaran Ebrahimi, Jahan Bakhsh Raoof, Reza Ojani, Maryam Ebrahimi
Summary: In this study, an electrochemical aptasensor was developed for the sensitive determination of strontium ions. The aptasensor was constructed using carboxylated graphene oxide-modified carbon paste electrode and the G-quadruplex aptamer as the recognition element. Carmoisine was used as the electrochemical label. The aptasensor showed excellent stability, selectivity, and reproducibility, and demonstrated promising results in the analysis of strontium in real samples.
ANALYTICAL BIOCHEMISTRY
(2023)
Article
Biochemical Research Methods
Milad Ghani, Zahra Jafari, Jahan Bakhsh Raoof
Summary: In this study, a three-dimensional graphene oxide coated agarose/chitosan porous film was synthesized and used as a sorbent in thin film microextraction (TFME) technique for the extraction of various model analytes. The effect of different variables on the extraction efficiency was studied and optimized. The method showed a wide linear range, high correlation coefficients, low limits of detection, and satisfactory relative standard deviations. The prepared film demonstrated potential applications in environmental, food safety, and drug analysis.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Chemistry, Multidisciplinary
Seyedeh Masoumeh Mousavi, Jahan Bakhsh Raoof, Milad Ghani
Summary: Graphene oxide (GO) was synthesized by Hummers' method, and a composite of Cu-Al-layered double hydroxide (Cu-Al-LDH) and GO was prepared via co-precipitation method. The structural characteristics of the composite were analyzed using various techniques. The modified carbon paste electrode (CPE) with the Cu-Al-LDH/GO composite showed improved catalytic performance for methanol oxidation reaction (MOR) compared to CPE with Cu-Al-LDH and GO alone. The study also investigated the influence of different parameters on the electrocatalysis of MOR.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Analytical
Rokhsareh Abedi, Jahan Bakhsh Raoof, Mojtaba Mohseni, Ayemeh Bagheri Hashkavayi
Summary: An electrochemical aptasensor has been developed for the detection of A. baumannii by modifying carbon screen-printed electrodes with a synthesized nanocomposite and binding A. baumannii-specific aptamer. The aptasensor showed high sensitivity, stability, reproducibility, and specificity.
Article
Chemistry, Analytical
Samira Ghasemi, Jahan Bakhsh Raoof, Milad Ghani, Reza Ojani
Summary: In this study, rod-like ZIF-8 was prepared using Escherichia coli bacteria as a bio-template and used for microextraction. A new sorbent was prepared using electrospun nanofiber mats and demonstrated satisfactory performance in the analysis of benzoylurea insecticides. The extraction method was optimized using experimental design strategy, and the model analytes were detected using high-performance liquid chromatography.
Article
Chemistry, Analytical
Mohadeseh Rahimi-Mohseni, Jahan Bakhsh Raoof, Tahereh A. Aghajanzadeh, Reza Ojani
Summary: In this study, a highly sensitive biosensor for phytic acid determination was developed using rice sprout extract and nanoparticles. The assembly process of the sensor on graphite screen-printed electrodes was investigated, and the electrochemical determination of PA was performed using differential pulse voltammetry. The biosensor showed excellent sensitivity for the determination of PA in real samples such as biscuits and wheat flour.
ANALYTICAL METHODS
(2022)
Article
Chemistry, Analytical
Faezeh Alipour, Jahan Bakhsh Raoof, Milad Ghani
ANALYTICAL METHODS
(2020)
Article
Chemistry, Multidisciplinary
Jahan Bakhsh Raoof, Zahra Bagheryan, Ayemeh Bagheri Hashkavayi
NEW JOURNAL OF CHEMISTRY
(2020)
