Article
Engineering, Environmental
Xue Yang, Han Sun, Chuntong Liu, Le Yu, Haijun Chen
Summary: The addition of methanol into KPF6-DMF non-aqueous electrolyte effectively suppresses the poisoning of platinum electrode during ammonia electrolysis, resulting in enhanced electrochemical performance and more stable electrolysis process. This finding provides a promising strategy to prevent platinum electrode poisoning by rational electrolyte design.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Yan Lin, Haitao Wang, Shiwen Fang, Hongming Jiang, Zhen Huang, Guoqiang Wei, Xiaobo Wang, Zengli Zhao, Hongyu Huang
Summary: The study investigates the effects of particle size and temperature on the chemical looping combustion (CLC) of lignite, using iron ore as the oxygen carrier with added alkaline-earth metals and transition metals. The modification of the oxygen carrier with Cu, K, Na, Ca, and Mn enhances its capacity to transform lignite and improve CO2 selectivity, with potential applications in the design of oxygen carriers for the CLC process.
Article
Energy & Fuels
Yan Lin, Haitao Wang, Shiwen Fang, Hongming Jiang, Zhen Huang, Guoqiang Wei, Xiaobo Wang, Zengli Zhao, Hongyu Huang
Summary: This paper investigates the effects of particle size and temperature on the chemical looping combustion of lignite using iron ore as the oxygen carrier. The modification of the oxygen carrier with Cu, K, Na, Ca and Mn effectively enhances the capacity for lignite transformation.
Article
Chemistry, Physical
Anis Biswas, Shalabh Gupta, Dustin Clifford, Yaroslav Mudryk, Ravi Hadimani, Radhika Barua, Vitalij K. Pecharsky
Summary: Sub-micron particles of FeRh powder synthesized via solid-state mechanochemical co-reduction exhibit an abrupt, bulk-like first-order magnetoelastic transformation, and the phase content, particle size, and magnetic properties of the powder can be tuned through heat treatments.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Electrochemistry
Bo Qin, Geir Martin Haarberg
Summary: In this study, jarosite waste was treated through thermal analysis and washing processes to concentrate hematite, and an electrolysis process was used to reduce iron from the hematite in order to explore a new way for recycling the value of the resource.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Igor Crego Ferreira, Roberto Galery, Andreia Bicalho Henriques, Ana Paula de Carvalho Teixeira, Caroline Duarte Prates, Athos Silva Lima, Isnaldi R. Souza Filho
Summary: This study uses iron ore tailings as aggregates to produce geopolymer-based materials. The addition of iron ore tailings significantly improves the strength of the material.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Electrochemistry
Ahmed M. Abdelrahim, Muhammad G. Abd El-Moghny, Mohamed E. El-Shakre, Mohamed S. El-Deab
Summary: Graphite felt (GF) is electrochemically modified via a controlled method by scanning the potential from +2 to -1.5 V in solutions with different NiCl2 concentrations. Increasing the NiCl2 amount enhances the anodic oxidation and cathodic deposition processes and functionalizes the GF surface. The modified GF, Ni(OH)2/GF-100, exhibits excellent catalytic activity for hydrogen evolution reaction and urea oxidation. Furthermore, a two-electrode cell for urea electrolysis shows promising energy-saving performance.
ELECTROCHIMICA ACTA
(2023)
Article
Green & Sustainable Science & Technology
Chen-Mu Zhang, Yao Shi, Lin-Hua Jiang, Ying-Yan Hu, Qiang Li, Hui-Quan Li
Summary: The research found that low concentrations of manganese ions can inhibit the release of lead (Pb) and control the microtopography evolution of anode slime. However, high concentrations of manganese ions may lead to deterioration of the microtopography of anode slime and ineffective control of lead release.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Yuan Shi, Kai-xi Jiang, Ting-an Zhang, Xiao-feng Zhu
Summary: A significant amount of coal fly ash is generated leading to severe environmental hazards, but metal extraction from it is beneficial. This study presents a novel electrolysis method that can effectively separate Fe3+ and Al3+ for extraction of Fe.
Article
Energy & Fuels
Vivian A. Luciano, Fabiano G. de Paula, Paula S. Pinto, Caroline D. Prates, Rafael Cesar G. Pereira, Jose D. Ardisson, Marcelo G. Rosmaninho, Ana Paula C. Teixeira
Summary: This study aimed to use iron ore tailings and oleic acid as raw materials for the production of high-value products through thermal decomposition reactions. The composition of reaction products varied with increasing temperature, mainly consisting of liquid, gas, and different iron phases.
Article
Green & Sustainable Science & Technology
Lingyun Yi, Nan Zhang, Haowen Hao, Lin Wang, Huarong Xiao, Guanghui Li, Zhikai Liang, Zhucheng Huang, Tao Jiang
Summary: This work presents a system that co-produces syngas and direct reduced iron through the conversion of biomass and iron ore. The system achieved a high syngas yield and DRI metallization ratio, and it has potential applications in green fuel gasification or DRI processes.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Seyed Hadi Shahcheraghi, Mehdi Dianatpour, Mohammad Hayati
Summary: A novel strategy using the particles physical properties-based Response Surface method and Monte Carlo simulation was introduced to model and estimate the Blaine number of iron ore concentrate. The proposed strategy was validated in an industrial iron ore processing plant.
ADVANCED POWDER TECHNOLOGY
(2023)
Article
Chemistry, Physical
Chang Li, Yushuang Xu, Wenjun Deng, Na Shen, Yan Chen, Chao Huang, Jinlin Zhu, Runduo Zhu, Wenxia Zou, Rui Li
Summary: In this study, an aqueous iron-organic battery was constructed using polyaniline as the cathode, Fe plate as the anode, and Fe(CF3SO3)2 as the electrolyte. The battery demonstrated a hybrid storage mechanism of iron plating/stripping in the anode and transmission of CF3SO3- in the cathode. The polyaniline-Fe battery exhibited high specific capacity and stable cycle performance, providing a new direction for the development of aqueous iron-ion batteries.
JOURNAL OF POWER SOURCES
(2023)
Article
Metallurgy & Metallurgical Engineering
Yuan Shi, Kai-xi Jiang, Ting-an Zhang, Xiao-feng Zhu
Summary: This study presents a nonhazardous and efficient electrolysis method to extract selective iron products from coal fly ash leachate, providing an alternative clean and efficient approach for sustainable development. The electrolysis process allows for controlled reduction of iron, production of different iron products, and generation of clean energy. Overall, this method enables zero pollution discharge and economic benefits, making it a promising solution for extracting high value metals from coal fly ash.
Article
Energy & Fuels
Francesco Superchi, Alessandro Mati, Carlo Carcasci, Alessandro Bianchini
Summary: This study explores the implementation of green hydrogen production systems for emission reduction in the steelmaking sector. By coupling onshore wind farms with lithium-ion batteries, alkaline electrolyzers, and the electricity grid, green hydrogen is produced to feed the Hydrogen Direct Reduction process. Techno-economic analyses are conducted to assess the performance of various system configurations, considering the levelized cost of hydrogen and the Green Index. The study also evaluates the emission reduction potential in comparison to the current scenario in EU-27 countries.
Article
Electrochemistry
Mary-Elizabeth Wagner, Rodrigo Valenzuela, Tomas Vargas, Melanie Colet-Lagrille, Antoine Allanore
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2016)
Article
Chemistry, Multidisciplinary
Davide Ciceri, Marcelo de Oliveira, Antoine Allanore
Editorial Material
Environmental Sciences
Davide Ciceri, Antoine Allanore
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Materials Science, Multidisciplinary
Andrew H. Caldwell, Antoine Allanore
Article
Agronomy
Davide Ciceri, Thomas C. Close, Allen V. Barker, Antoine Allanore
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2019)
Article
Chemistry, Analytical
Andrew H. Caldwell, Antoine Allanore
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2020)
Article
Electrochemistry
Mary-Elizabeth Wagner, Antoine Allanore
Summary: The development of new high temperature electrolytes is hindered by lack of information about their thermodynamic solution properties. Current models are unable to predict the behavior of complex multicomponent liquids accurately, and gathering sufficient experimental data for analysis is a lengthy and expensive process. The study aims to generalize the approach from binary cathode alloys to multicomponent cathodes exhibiting real solution behavior, using targeted experimental data and classical Gibbs energy curves to map out the thermodynamic nature of complex electrolytes.
ELECTROCHIMICA ACTA
(2021)
Article
Multidisciplinary Sciences
Caspar Stinn, Antoine Allanore
Summary: This study proposes a metal-processing approach based on selective anion exchange to achieve efficient separation of metallic elements. By manipulating process control parameters, the target metal can be selectively sulfidized from a mixed metal-oxide feed, and the differences between sulfide and oxide compounds can be exploited for improved separation. The results of this study indicate significant reductions in energy and chemical consumption, as well as positive environmental and economic impacts.
Article
Electrochemistry
Mary-Elizabeth Wagner, Antoine Allanore
Summary: The behavior of copper and silver in molten sulfide electrolytes was studied, and it was found that the solubility of Ag2S in the supporting electrolyte is higher than that of Cu2S. Electrolysis experiments in molten sulfide were conducted to validate the thermodynamic model, and it was found that the cathode chemistry of Ag-Cu influences the electrochemical selectivity in the Ag-Cu-Ba-La-S system.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Katrin E. Daehn, Caspar Stinn, Lucas Rush, Ethan Benderly-Kremen, Mary Elizabeth Wagner, Charles Boury, Brian Chmielowiec, Carolina Gutierrez, Antoine Allanore
Summary: This study demonstrates that extracting elements from chalcopyrite using an oxygen-free environment and a sulfide electrolyte is an effective method, offering solutions to the challenges faced by the copper industry and meeting the requirements for clean production.
Article
Physics, Multidisciplinary
J. Paras, A. Allanore
Summary: Cu3Au undergoes a phase transition at 662 K from an ordered low-temperature phase to a disordered solid solution. Despite challenges in apportioning the entropy, a recent formalism has been used to calculate an electronic entropy difference, aligning some estimates of entropy with experimental measurements.
PHYSICAL REVIEW RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
J. Paras, A. Allanore
Article
Electrochemistry
Bradley R. Nakanishi, Antoine Allanore
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2019)
Article
Electrochemistry
Brian Chmielowiec, Tatsuki Fujimura, Tomohiro Otani, Kiego Aoyama, Toshiyuki Nohira, Takayuki Homma, Yasuhiro Fukunaka, Antoine Allanore
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2019)
Article
Electrochemistry
Antoine Allanore
ELECTROCHEMICAL SOCIETY INTERFACE
(2017)