Related references
Note: Only part of the references are listed.
Article
Chemistry, Multidisciplinary
Zhe Li et al.
Summary: This study demonstrates that the oxidase-like activity of single-atom Co catalysts greatly depends on their local N coordination around the Co catalytic sites. We synthesized a series of Co single-atom catalysts with different nitrogen coordination numbers (Co-Nx(C), x = 2, 3, and 4) and demonstrated that the oxidase-like activity of single-atom Co catalysts could be effectively tailored by fine-tuning the N coordination. Among the studied single-atom Co catalysts, the Co-N3(C) with three-coordinate N atoms shows the optimum oxygen adsorption structure and robust reactive oxygen species (ROS) generation, thus presenting the preferable oxidase-like catalytic activity. This work facilitates the future development of rational nanozyme designs for targeting reactions at the atomic level.
Article
Chemistry, Inorganic & Nuclear
Jian Cai et al.
Summary: This study designs and synthesizes dual-metal Fe/Co-N/S-x-C catalysts with different doping amounts of sulfur and investigates the influence of N/S local coordination on the electrochemical catalytic oxygen reaction. It is found that the doping of S atoms changes the active center structure, resulting in localized strain and electron rearrangement. Furthermore, S atoms modulate the orbital hybridization and accelerate the ORR. Theoretical and experimental results demonstrate the bifunctional electrocatalytic performance of Fe-Co-N/S-2-C, making it promising for zinc-air batteries.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Analytical
Yu-Xin Yang et al.
Summary: In this study, heteroatom-doped single-atom catalysts (SACs) of Fe-N/P-C were synthesized for the catalysis of cathodic luminol electrochemiluminescence (ECL). The doping of phosphorus (P) could improve the catalytic efficiency of the oxygen reduction reaction (ORR) by lowering the reaction energy barrier. The catalysis of ORR by SACs triggered the generation of reactive oxygen species (ROS) and greatly enhanced the ECL emission. The Fe-N/P-C SACs exhibited higher catalytic activity compared to Fe-N-C SACs. The system's dependence on oxygen allowed for ultra-sensitive detection of antioxidants, such as ascorbic acid.
ANALYTICA CHIMICA ACTA
(2023)
Article
Biophysics
Lihua Shen et al.
Summary: Machine learning algorithms combined with SANs sensors can efficiently process large quantities of data and accurately detect substances such as ascorbic acid. This method has broad application prospects and can be used for the detection of disease-related proteins and cells in the future.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Analytical
Rui Zou et al.
Summary: Interface modulation between metal and supports is an effective strategy to improve the weak cathodic electrogenerated chemiluminescence (ECL) of the luminol-dissolved O-2 system. In this study, an Ag-O-Co interface was designed to enhance the ECL performance of the luminol-dissolved O-2 system. The increased amounts of reactive oxygen species (ROSs) generated through electrocatalytic oxygen reduction reaction (ORR) at the Ag-O-Co interface contribute to the improved ECL intensity.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Yanmei Gong et al.
Summary: A multicatalytic centers electrocatalyst Fe3C/Mn3O4 encased by N-doped graphitic layers (FeMn PDA-900) is synthesized and exhibits high catalytic oxygen reduction reaction (ORR) performance in both acidic and neutral electrolyte solutions. It has potential applications in proton exchange membrane fuel cells and microbial electrolysis cells.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Hongyin Xia et al.
Summary: In this study, the relationship between intrinsic oxygen reduction reaction (ORR) activity and electrochemiluminescence (ECL) behavior was explored using single-atom catalysts (SACs). By combining electrochemical ORR catalyzed via SACs and chemical oxidation of luminol, the traditionally neglected cathodic ECL emission of luminol was significantly enhanced. This work is important for guiding the development of an amplified sensing platform through rational tailoring of the ORR activity of SACs and potential-resolved ECL assays based on high-efficiency cathodic ECL.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Fuad Abduro Bushira et al.
Summary: In this study, an efficient luminol-DO ECL system was developed through the complexing of Fe, Co dual single-atom catalysts (D-SACS) supported by N-doped graphene with the luminol-capped Ag nanoparticles (AgNPs). The performance of the corresponding ECL system could be significantly boosted up to 677-fold under optimal testing conditions, comparable to the classic luminol-O-2 system. The developed luminol-DO ECL system was successfully applied for the stable ultrasensitive detection of prostate-specific antigen (PSA) in a wide linear range of 1 fg/mL to mu g/mL, with a low limit of detection (0.98 fg/mL).
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ming-Ming Chen et al.
Summary: The super-resolution ECLM technique allows for high-resolution imaging of single nanoparticles' catalytic activity, revealing surface characteristics of nanocatalysts. This technology has great potential applications in catalysis, biological imaging, and single-entity analysis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
Fuad Abduro Bushira et al.
Summary: In this study, the ECL response of the iron SAC-based system was significantly enhanced for the first time by exciting two-dimensional plasmons derived from the AugSiO(2) nanomembrane. The Fe-SAC ECL system was successfully applied for the detection of dopamine, hemin, and mercury with low limits of detection and wider linear ranges under optimal conditions.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Zhe Chen et al.
Summary: In this study, a novel dual-site electro-catalyst with atomically dispersed Fe/Mn-N-x-C dual metal sites embedded in N-doped carbon matrix was successfully designed and synthesized, showing excellent oxygen reduction reaction (ORR) activity and superior stability. The catalyst achieved high power density and specific energy density in Zn-air battery, surpassing most reported non-precious catalysts. The superior performance is attributed to a synergic dual-site cascade mechanism, as revealed by theoretical DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Review
Chemistry, Multidisciplinary
Wei Zhao et al.
Summary: Electrogenerated chemiluminescence (ECL) is a process in which light is produced by excited luminophores generated during redox reactions induced by electrochemistry. Analyzing single entities such as molecules, micro/nanoparticles, and cells using ECL can provide insights into new truths of nature that may be hidden in complex systems or averaged out in ensemble assays.
Review
Chemistry, Multidisciplinary
Lei Jiao et al.
Summary: The development of highly sensitive biosensors has been a focus in recent years. Single-atom catalysts show promise in enhancing signal amplification in biosensing, offering improved sensitivity and selectivity through tunable metal-support interactions and the structural features of active sites.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Wenling Gu et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Physical
Mingyu Hu et al.
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Review
Chemistry, Multidisciplinary
Ying Chen et al.
MATERIALS CHEMISTRY FRONTIERS
(2020)
Article
Chemistry, Analytical
Jingjing Zhang et al.
ANNUAL REVIEW OF ANALYTICAL CHEMISTRY, VOL 12
(2019)
Article
Chemistry, Physical
Hua Bing Tao et al.
Article
Chemistry, Multidisciplinary
Ming-Ming Chen et al.
Article
Chemistry, Multidisciplinary
Jia-Li Liu et al.
Article
Chemistry, Multidisciplinary
Meng-Jiao Zhu et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2018)
Article
Chemistry, Multidisciplinary
Serena Carrara et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Article
Materials Science, Multidisciplinary
J. Y. Kim et al.
JOURNAL OF MATERIALS CHEMISTRY C
(2017)
Article
Chemistry, Analytical
Huai-Rong Zhang et al.
ANALYTICAL CHEMISTRY
(2016)
Article
Chemistry, Multidisciplinary
Feng Wang et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2016)
Article
Chemistry, Multidisciplinary
Suli Liu et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2016)
