Article
Chemistry, Physical
Yizhen Wang, Yingying Jiao, Junchao Qin, Jianshe Wang
Summary: In this work, a one-step strategy was explored for the preparation of holey carbon nitride nanosheets (HCNS) by using melamine and copper oxide. The thermal polymerization of melamine led to the decomposition of released ammonia by copper oxide, resulting in the preparation of HCNS. The filled copper oxide also effectively decomposed ammonia and improved the photocatalytic activity of carbon nitride.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Multidisciplinary Sciences
Yu Xia, Juan Li, Yuanzheng Zhang, Yongguang Yin, Bolei Chen, Yong Liang, Guibin Jiang, Richard N. Zare
Summary: Spontaneous generation of reactive oxygen species (ROS) occurs when water vapor contacts hydrogen-bonded hydroxyl groups on a silicate surface, which is confirmed by time-resolved FT-IR spectroscopy. The involvement of water vapor in ROS generation is further supported by studying the reaction of D2O vapor and hydroxyl groups on a silicate surface. It is proposed that the change of the hydrogen-bonding network and electron transfer onto the silicate surface during water vapor-solid contact process contribute to ROS production.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Materials Science, Multidisciplinary
Nicholas Senior, Taylor Martino, Peter G. Keech, Wilfred Jeffrey Binns, Nikitas Diomidis, Christina Lilja
Summary: Copper has potential as a corrosion barrier for used fuel containers in deep geological repositories. Laboratory simulations have shown the production of small amounts of hydrogen gas, indicating a corrosion process. New corrosion results for different copper materials under simulated ground waters have been reported. The origin of the hydrogen remains unclear.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2023)
Article
Chemistry, Physical
Wathone Oo, Ji Hye Park, Zakia Akter Sonia, May Zaw Win, Dooyong Cho, Kwang Bok Yi
Summary: In this study, the Cu-CeO2 catalyst was synthesized via the Reverse Microemulsion (RME) method to overcome the drawbacks of aggregate formation and nanoparticles' instability in the conventional Impregnation (IMP) method. The RME method resulted in the preparation of porous particles with uniform size distribution and improved interaction within the composites. The 20% Cu-CeO2 catalyst prepared by the RME method exhibited superior Water Gas Shift (WGS) catalytic activity and sustained catalytic activity throughout the entire 48 h period without any signs of deactivation, highlighting the potential of RME method for developing more effective nanoparticle catalysts for hydrogen production.
Article
Chemistry, Multidisciplinary
Shu Liu, Jiayao Li, Seiichi Oshita, Mohammed Kamruzzaman, Minming Cui, Wenhong Fan
Summary: Hydrogen nanobubble water has been shown to significantly alleviate copper-induced acute toxicity in algae, by reducing copper uptake rate and lowering endogenous reactive oxygen species (ROS) levels.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Lei Zhang, Xiaorui Gao, Ying Zhu, Acan Liu, Huilong Dong, Dajun Wu, Zhida Han, Wei Wang, Yong Fang, Jie Zhang, Zongkui Kou, Bin Qian, Ting-Ting Wang
Summary: The study demonstrates that copper doping can enhance water adsorption and dissociation of Ni3S2, leading to improved hydrogen evolution reactions in alkaline and neutral solutions. The tailored control of water adsorption/dissociation capability of Ni3S2 opens significant opportunities for the rational design of electrocatalysts.
Article
Chemistry, Multidisciplinary
Xuke Chen, Yu Xia, Zhenyuan Zhang, Lei Hua, Xiuquan Jia, Feng Wang, Richard N. Zare
Summary: Contact between water and oil can result in new chemical reactions, producing CO2, H·, H2, and short-chain hydrocarbons. This reaction is caused by contact electrification at the water-oil microdroplet interface, generating reactive oxygen species.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Energy & Fuels
Tawanda Matamba, Stefan Iglauer, Alireza Keshavarz
Summary: This review paper explores the research progress in the formation of hydrogen rich gas from innovative coal gasification parameters, including the effects of pressure, temperature, catalyst, coal type, and the advantages of coal and biomass co-gasification. The study found that co-gasification and elevated temperatures, pressures, and steam-carbon ratios positively influence hydrogen gas yields, while the presence of different catalysts and sorbents enhances hydrogen concentration in the gaseous products.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Materials Science, Multidisciplinary
Nicholas A. Senior, Taylor Martino, Jeff Binns, Peter Keech
Summary: This paper presents a study on the construction of the fuel container used in the Canadian deep geological repository and its adaptability to different groundwater chemistry to ensure the long-term integrity of the fuel container. The experiments found that under specific conditions, chloride or hydrogen sulphide may stimulate short-term corrosion behavior.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2021)
Article
Engineering, Environmental
Jyoti Shanker Pandey, Jesper Lundtoft Hansen, Nicolas von Solms
Summary: This study investigates the effects of different types of promoters on the adsorption capacity of hydrogen-rich natural gas hydrates and suggests that promoter selection should be based on the hydrogen gas mol% in the mixture. The results reveal that kinetic promoters are effective at low hydrogen concentrations, while thermodynamic promoters are effective at high hydrogen concentrations. Furthermore, the study emphasizes the influence of the CH4/C2H6 mixture on formation kinetics and crystal structure, and the impact of hydrogen mol% on H-2 cage occupancy.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Gianluca Landi, Giulia Sorbino, Fortunato Migliardini, Giovanna Ruoppolo, Almerinda Di Benedetto
Summary: In this study, we propose a novel bimetallic iron-copper catalyst supported on ceria for the high-temperature water gas shift reaction. The catalyst exhibits excellent catalytic performance with low active phase content, good thermal stability, and no chromium content. The outstanding performance is attributed to the strong iron-copper and metal-support interactions.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Nicholas Senior, Taylor Martino, Nikitas Diomidis, Roberto Gaggiano
Summary: The long-term disposal of low- and intermediate-level radioactive waste involves encapsulating the material in cement before placing it in a deep geological repository. This process results in the production of hydrogen gas due to the corrosion of emplaced metals, which requires knowledge of the rate at which hydrogen is generated for pressure assessment. Through monitoring the corrosion behavior of mild steel in simulated cement conditions, it was found that it takes several years for steel and cement to reach a steady hydrogen production rate, but only months when steel is directly immersed in simulated cement pore water. After more than 4 years of exposure, all measured steel corrosion rates were significantly below 1 nm year(-1) at 50 degrees C, regardless of the test environment.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2023)
Article
Chemistry, Applied
Menekse Bulut, Yasemin Celebi Sezer, M. Murat Ceylan, Duried Alwazeer, Mubin Koyuncu
Summary: The use of hydrogen-rich water in washing food products can effectively reduce the formation of biogenic amines, contributing to the prevention of food spoilage.
Article
Chemistry, Multidisciplinary
Sebastian Werner, Clarissa Glaser, Thomas Kasper, Trung Nghia Nguyen Le, Silvia Gross, Bernd M. Smarsly
Summary: The study focused on the precise detection of toxic gas H2S using CuO sensors, revealing that the decrease in sensing performance is mainly due to the irreversible formation of CuSO4 during regeneration. By developing strategies to reduce CuSO4 formation, the researchers were able to substantially maintain sensing stability and prolong sensor lifetime. The CuO-based dosimeters achieved a response time of just a few minutes for 10 ppm H2S and demonstrated prolonged life-time.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Geochemistry & Geophysics
Matthew S. Dodd, Haiyang Wang, Chao Li, Martyn Towner, Andrew R. Thomson, John F. Slack, Yu-sheng Wan, Franco Pirajno, Chakravadhanula Manikyamba, Qiang Wang, Dominic Papineau
Summary: Experiments show that ferrous iron readily oxidizes in analogs of Archean anoxic seawater, contributing to the formation of iron minerals in banded iron formations (BIF). This finding provides new insights into the environmental and biological conditions on early Earth.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Chemistry, Physical
Zahra Besharat, Joakim Halldin Stenlid, Markus Soldemo, Kess Marks, Anneli Onsten, Magnus Johnson, Henrik Ostrom, Jonas Weissenrieder, Tore Brinck, Mats Gothelid
JOURNAL OF CHEMICAL PHYSICS
(2017)
Article
Biochemistry & Molecular Biology
Magnus Liljenberg, Joakim Halldin Stenlid, Tore Brinck
JOURNAL OF MOLECULAR MODELING
(2018)
Article
Chemistry, Physical
Magnus Liljenberg, Joakim Halldin Stenlid, Tore Brinck
JOURNAL OF PHYSICAL CHEMISTRY A
(2018)
Article
Chemistry, Physical
Heloise Tissot, Chunlei Wang, Joakim Halldin Sterdid, Tore Brinck, Jonas Weissenrieder
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Chemistry, Physical
Joakim Halldin Stenlid, Adam Johannes Johansson, Tore Brinck
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2018)
Article
Biochemistry & Molecular Biology
Tore Brinck, Andre Nyberg Borrfors
JOURNAL OF MOLECULAR MODELING
(2019)
Article
Chemistry, Physical
Ge Li, Joakim H. Stenlid, Marten S. G. Ahlquist, Tore Brinck
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Applied
Dhebbajaj Yaempongsa, Ann Brinck, Tore Brinck
Summary: Chemical substitution of the NO2 group in trinitramide with NF2 significantly improves stability and performance, especially evident in N(NO2)(2)NH2. The use of N(NF2)(3) propellants shows superior performance in condensed phase, suitable for propellant formulations with fuels rich in hydrogen and/or aluminum.
PROPELLANTS EXPLOSIVES PYROTECHNICS
(2021)
Article
Chemistry, Physical
H. Tissot, J. Halldin Stenlid, C. Wang, M. Panahi, S. Kaya, T. Brinck, Y. Sassa, F. O. L. Johansson, J. Weissenrieder
Summary: Our experimental observations and mechanistic DFT studies suggest that Cu2O can operate as an efficient catalyst for the green generation of ketene from acetic acid.
JOURNAL OF CATALYSIS
(2021)
Article
Biochemistry & Molecular Biology
Tore Brinck, Andre Nyberg Borrfors
Summary: Through theoretical modeling, this study found that the interaction energy of hydrogen-bonded complexes between Br- and halogen, oxygen, and sulfur donors can be accurately reproduced using scaled interaction energy with a point charge.
JOURNAL OF MOLECULAR MODELING
(2022)
Article
Chemistry, Physical
Tore Brinck, Suman Kalyan Sahoo
Summary: This study shows that Lewis acids of the types B(SiR3)(3) and B(GeR3)(3) can form anomalously short and strong B-N or B-C bonds with N-2 and CO. The selective binding enhancement of N-2 and CO is due to π-backbonding from Lewis acid to Lewis base. This interaction activates N-2 for chemical transformation and reduction.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Kjell Jorner, Tore Brinck, Per-Ola Norrby, David Buttar
Summary: The study introduces hybrid models combining traditional transition state modeling and machine learning to accurately predict reaction barriers, offering competitive accuracy in low-data scenarios.
Article
Chemistry, Physical
Joakim Halldin Stenlid, Adam Johannes Johansson, Tore Brinck
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2019)
Article
Multidisciplinary Sciences
Tore Brinck, Joakim H. Stenlid
ADVANCED THEORY AND SIMULATIONS
(2019)
Article
Chemistry, Multidisciplinary
Camilla Gustafsson, Serguei Vassiliev, Charlotte Kurten, Per-Olof Syren, Tore Brinck