Article
Chemistry, Physical
Hadi Feizi, Seyedeh Maedeh Hosseini, Zahra Zand, Mohammad Mahdi Najafpour
Summary: Recent studies have shown the important role of Mn(III) ions in the structure of Mn(IV) oxide in the oxygen-evolution reaction (OER). However, the challenge lies in using a stable and perdurable force to induce Mn(III) ions during OER.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Jing Jiang, Xinzhi Wang, Xin Liang, Jiayi Zhang, Lunhong Ai
Summary: We report a robust multi-functional MoS2-MoP2 heterostructure formed on nickel foam (Mo-S-P/NF) to boost both the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER) in alkaline medium. The optimal Mo-S-P/NF exhibits excellent electrocatalytic performances with ultralow overpotentials of 202 mV for OER, 50 mV for HER as well as a low cell voltage of 1.56 V for overall water splitting at a current density of 10 mA cm(-2), along with outstanding long-term durability, owing to prominent superwetttability, abundant defective surface and unique heterointerface. Remarkably, the successful implementation of solar thermoelectricity-driven water electrolysis self-powered by the Mo-S-P/NF inspires its practical application in sustainable hydrogen production.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Marko Malinovic, Paul Paciok, Ezra Shanli Koh, Moritz Geuss, Jisik Choi, Philipp Pfeifer, Jan Philipp Hofmann, Daniel Goehl, Marc Heggen, Serhiy Cherevko, Marc Ledendecker
Summary: In this study, a precise control over the size of structurally ordered iridium oxide nanoparticles is achieved during high-temperature thermal treatment by utilizing a silica nanoreactor as a hard template. This approach maintains high durability while avoiding the common problem of reduced surface area and altered particle morphology.
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Zehao Yin, Xuan Liu, Siru Chen, Haijiao Xie, Liguo Gao, Anmin Liu, Tingli Ma, Yanqiang Li
Summary: Developing advanced electrocatalysis for overall water splitting is crucial for sustainable hydrogen production. The self-template method used in this work successfully synthesized MoS2/NiS2/CoS2 nanotube, which exhibited enhanced electron density and improved adsorption properties for H and OH-containing intermediates. The heterogeneous catalyst displayed low overpotentials and stable overall water splitting, showing great potential for practical applications.
MATERIALS TODAY NANO
(2022)
Article
Engineering, Environmental
Mengtian Zhang, Hao Li, Junxiang Chen, Luocai Yi, Ping Shao, Cheng-Yan Xu, Zhenhai Wen
Summary: This study reported a hybrid electrocatalyst RuCo@NG/N-GNs with RuCo alloy nanoparticles encapsulated by N-doped graphite loading on N-doped graphite nanosheets, showing highly desirable electrocatalytic features towards both acidic OER and alkaline HER with impressively high activity, fast kinetic, and excellent stability. Experiments combined with DFT calculations reveal the critical role of Co element in enhancing the performance for both OER and HER reactions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Physical
Cehuang Fu, Thomas O'Carroll, Shuiyun Shen, Liuxuan Luo, Junliang Zhang, Hui Xu, Gang Wu
Summary: Water electrolysis is the most promising solution for clean hydrogen generation, but its energy efficiency is limited by the slow oxygen evolution reaction (OER), especially in proton exchange membrane (PEM) water electrolyzers. Expensive and scarce Ir-based catalysts are the only candidate for their promising catalytic activity and stability in challenging acidic media. This article highlights recent achievements in developing advanced Ir catalysts with reduced loading and improved performance, as well as the grand challenges and possible innovative strategies.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shujiao Yang, Xialiang Li, Yifan Li, Yabo Wang, Xiaotong Jin, Lingshuang Qin, Wei Zhang, Rui Cao
Summary: By studying two isomorphous manganese phosphates, the significant effect of proton transfer on water oxidation has been observed, with the hydrogen-bonding network in NH4MnPO4 center dot H2O proven to be the sole reason for its better catalytic activity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Physical
Michaela Plevova, Jaromir Hnat, Karel Bouzek
Summary: This review systematically compares different materials based on their reported overpotential in the oxygen evolution reaction (OER) at a current density of 10 mA cm(-2). Through classifying the catalysts based on their chemical composition, insights into the theoretical identification of the most active materials are provided. The study also explores the application of catalysts under different pH conditions.
JOURNAL OF POWER SOURCES
(2021)
Article
Green & Sustainable Science & Technology
Daniel Escalera-Lopez, Kim D. Jensen, Neil Rees, Maria Escudero-Escribano
Summary: The study proposed a method of decorating IrOx thin films with amorphous tungsten sulphide to enhance OER stability in acidic conditions. The research showed that this decoration method could improve specific activity metrics for OER and minimize roughening of the Ir surface.
ADVANCED SUSTAINABLE SYSTEMS
(2021)
Article
Chemistry, Multidisciplinary
Piao Wang, Changle Zhang, Jiabao Ding, Yujin Ji, Youyong Li, Weifeng Zhang
Summary: Combining iridium dopants with highly active iridium atoms, Ir-SMO exhibits excellent performance for water oxidation in acidic conditions, making it an efficient and stable electrocatalyst.
Article
Chemistry, Physical
Chunxu Jia, Chao Zhen, Lichang Yin, Huaze Zhu, Peipei Du, Ali Han, Gang Liu, Hui-Ming Cheng
Summary: Highly active, robust and low-cost oxygen evolution reaction (OER) electrodes are urgently needed for industrial hydrogen production via water electrolysis. This study obtained ultrathin NiFeOOH nanosheets with abundant undercoordinated Fe active sites on a Ni foam electrode for OER through electrochemical topologic transition. These electrodes exhibit low overpotentials of 210 mV at 10 mA cm(-2) and a small Tafel slope of 32 mV dec(-1) due to the abundant Fe active sites. They also show high stability at high current densities of 400-600 mA cm(-2) over 2000 hours, thanks to their strong adhesion to Ni foam. Moreover, a high current density of 400 mA cm-2 can be achieved with only a 370 mV overpotentials in a two-electrode water electrolysis system, resulting in an energy efficiency of approximately 77%.
Article
Chemistry, Inorganic & Nuclear
Rui Xiang, Yunchuan Nong, Kejin Song, Maoting Li, Xingyu Wang
Summary: A hydrothermal etching strategy is reported for the synthesis of Fe doped Co oxides/hydroxide hybrid catalyst with hierarchical nanosheet array architecture. The as-obtained catalyst exhibits excellent electrocatalytic performance, attributed to the highly active Fe doped Co oxides/hydroxide species together with the unique 3D hierarchical structure.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Mingquan Yu, Claudia Weidenthaler, Yue Wang, Eko Budiyanto, Ezgi Onur Sahin, Minmin Chen, Serena DeBeer, Olaf Ruediger, Harun Tueysuez
Summary: Researchers have found that coupling boron with cobalt oxide can modify its structure and significantly enhance its electrocatalytic performance. Through a simple precipitation and thermal treatment process, a series of Co-B oxides with adjustable morphologies and textural parameters were prepared. The experimental results demonstrate that boron modulation can improve the reactivity of the oxygen evolution reaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Guyue Bo, Peng Li, Yameng Fan, Qiang Zhu, Linlin Xia, Yi Du, Shi Xue Dou, Xun Xu
Summary: This study introduces the use of a eutectic GaInSn alloy as an intermediate to fabricate low-dimensional ordered catalyst support materials, demonstrating the preparation method and advantages. By forming metal oxide nanosheets at the interface of liquid metal and water, the structural stability and overall electrocatalytic performance of catalyst supports were enhanced.
Review
Chemistry, Physical
Michael John Craig, Max Garcia-Melchor
Summary: Using green hydrogen to reduce dependence on fossil fuels is important, but large-scale production is still not economical due to the cost and efficiency issues of electrocatalysts for the oxygen evolution reaction (OER). This mini-review outlines recent advances in the discovery and application of descriptors in OER catalysis, and discusses the challenges and opportunities in catalyst design strategies.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Physical
Zhiping Lin, Bo Lin, Zongpeng Wang, Shougang Chen, Chengwei Wang, Mengyao Dong, Qiang Gao, Qian Shao, Tao Ding, Hu Liu, Shide Wu, Zhanhu Guo
Article
Chemistry, Physical
Yanjie Zhai, Jun Wang, Qiang Gao, Yuqi Fan, Chuanxin Hou, Yue Hou, Hu Liu, Qian Shao, Shide Wu, Lanling Zhao, Tao Ding, Feng Dang, Zhanhu Guo
JOURNAL OF CATALYSIS
(2019)
Article
Chemistry, Multidisciplinary
Mengmeng Cui, Qiang Gao, Christopher C. Bowland, Eric M. Burgeson, Kunlun Hong, Pengtao Yue, Amit K. Naskar
ADVANCED MATERIALS INTERFACES
(2020)
Review
Chemistry, Multidisciplinary
Ivan Bobrinetskiy, Marko Radovic, Francesco Rizzotto, Priya Vizzini, Stefan Jaric, Zoran Pavlovic, Vasa Radonic, Maria Vesna Nikolic, Jasmina Vidic
Summary: This review examines the potential of utilizing nanomaterials and electrochemical technologies to develop novel diagnostic devices for detecting foodborne pathogens and their biomarkers. The overview covers basic electrochemical methods, electrode functionalization, and the use of various nanomaterials to design rapid, ultrasensitive, specific, and affordable biosensors, illustrating how limitations of traditional technologies can be overcome.
Article
Chemistry, Multidisciplinary
Marko Pavlovic, Heman Kumar Ramiya Ramesh Babu, Saveh Djalali, Zoran Pavlovic, Milan Vranes, Lukas Zeininger
Summary: A method for visualizing and quantifying surfactant effectiveness in different electrolyte environments using reconfigurable Janus emulsions as optical probes is presented. The effect of different types and concentrations of salt counter-ions on the surfactant surface excess was investigated for both ionic and non-ionic surfactants. It was found that the interfacial tensions of the ionic surfactants varied significantly, while the effect on the non-ionic surfactant was less pronounced. Overall, this study demonstrates the potential of Janus emulsions as powerful tools for studying surfactant properties at liquid interfaces.
Article
Chemistry, Analytical
Ivana Podunavac, Miroslav Djocos, Marija Vejin, Slobodan Birgermajer, Zoran Pavlovic, Sanja Kojic, Bojan Petrovic, Vasa Radonic
Summary: The connection of macrosystems with microsystems is crucial for in-line measurements in biotechnological processes. It enables precise monitoring of process parameters at a small scale, providing valuable insights and improving process control and optimization. Continuous monitoring without manual sampling also enhances production efficiency and cost-effectiveness.
Article
Chemistry, Analytical
Ivana Podunavac, Manil Kukkar, Vincent Leguillier, Francesco Rizzotto, Zoran Pavlovic, Ljiljana Janjusevic, Vlad Costache, Vasa Radonic, Jasmina Vidic
Summary: This study presents an affordable method for the rapid fabrication of an electrochemical immunosensor using gold electrodes. The gold electrode was generated using gold leaves and low-cost adhesive sheets, and was modified to detect Escherichia coli cells. The biosensor exhibited high reliability and reproducibility, making it suitable for use in low-resource settings.
Article
Energy & Fuels
Qiang Gao, Maria-Magdalena Titirici
JOURNAL OF PHYSICS-ENERGY
(2020)
Article
Chemistry, Multidisciplinary
Qiang Gao, Weiwei Sun, Poorandokht Ilani-Kashkouli, Alexander Tselev, Paul R. C. Kent, Nadine Kabengi, Michael Naguib, Mohamed Alhabeb, Wan-Yu Tsai, Arthur P. Baddorf, Jingsong Huang, Stephen Jesse, Yury Gogotsi, Nina Balke
ENERGY & ENVIRONMENTAL SCIENCE
(2020)
Review
Chemistry, Multidisciplinary
Guangwei Zheng, Jinshu Wang, Hu Liu, Vignesh Murugadoss, Guannan Zu, Haibing Che, Chen Lai, Hongyi Li, Tao Ding, Qiang Gao, Zhanhu Guo
Article
Chemistry, Multidisciplinary
Pan Yang, Lijun Yang, Qiang Gao, Qiang Luo, Xiaochong Zhao, Xianmin Mai, Qinglong Fu, Mengyao Dong, Jingchuan Wang, Yawei Hao, Ruizhu Yang, Xinchun Lai, Shide Wu, Qian Shao, Tao Ding, Jing Lin, Zhanhu Guo
CHEMICAL COMMUNICATIONS
(2019)
Article
Chemistry, Inorganic & Nuclear
Bo Lin, Zhiping Lin, Shougang Chen, Meiyan Yu, Wen Li, Qiang Gao, Mengyao Dong, Qian Shao, Shide Wu, Tao Ding, Zhanhu Guo
DALTON TRANSACTIONS
(2019)
Article
Chemistry, Inorganic & Nuclear
Kai Le, Zhou Wang, Fenglong Wang, Qi Wang, Qian Shao, Vignesh Murugadoss, Shide Wu, Wei Liu, Jiurong Liu, Qiang Gao, Zhanhu Guo
DALTON TRANSACTIONS
(2019)
