Understanding corrosion behavior of aluminum current collector in LiFSI electrolyte
ChemSusChem. 2024 Apr 18:e202400164. doi: 10.1002/cssc.202400164. Online ahead of print.ABSTRACTCycling aging is the one of the main reasons affecting the lifetime of lithium-ion batteries and the contribution of aluminum current collector corrosion to the ageing is not fully recognized. In general, aluminum is corrosion resistant to electrolyte since a non-permeable surface film of alumina is naturally formed. However, corrosion of aluminum current collector can still occur under certain conditions such as lithium bis(fluorosulfonyl)imide (LiFSI)-based electrolyte or high voltage. Herein, we investigates the corrosion of ...
Source: ChemSusChem - April 18, 2024 Category: Chemistry Authors: Zijie Yuan Yongjing Wang Yaqi Chen Xiaodong Zhu Shizhao Xiong Zhongxiao Song Source Type: research
Manganese Oxide / Silica catalysed Decarboxylative Ketonization of Aliphatic Carboxylic Acids in a Continuous Flow Reactor
ChemSusChem. 2024 Apr 18:e202400094. doi: 10.1002/cssc.202400094. Online ahead of print.ABSTRACTThe sustainable synthesis of long carbon chain molecules from carbon dioxide, water and electricity relies on the development of waste-free, highly selective C-C bond forming reactions. An example for such a power-to-chemicals process is the industrial-scale fermentation for the production of hexanoic acid. Herein, we describe how this product is transformed into 6-undecanone via decarboxylative ketonization using a heterogeneous manganese oxide / silica catalyst. The reaction reaches full conversion with near-complete selectivi...
Source: ChemSusChem - April 18, 2024 Category: Chemistry Authors: Jonas Felix Goebel Florian Belitz Daniel Sowa Prendes Yannik Haver Patrick Diehl Martin Muhler Lukas J Goossen Source Type: research
Implications of Defect Density and Polymer Interactions for CO2 Capture on Amine-Functionalized MIL-101(Cr)
ChemSusChem. 2024 Apr 16:e202400249. doi: 10.1002/cssc.202400249. Online ahead of print.ABSTRACTRising anthropogenic carbon emissions have dire environmental consequences, necessitating remediative approaches, which includes use of solid sorbents. Here, aminopolymers (poly(ethylenimine) (PEI) and poly(propylenimineimine) (PPI)) are supported within solid mesoporous MIL-101(Cr) to examine effects of support defect density on aminopolymer-MOF interactions for CO2 uptake and stability during uptake-regeneration cycles. Using simulated flue gas (10 % CO2 in He), MIL-101(Cr)-ρhigh (higher defect density) shows 33 % higher upta...
Source: ChemSusChem - April 17, 2024 Category: Chemistry Authors: Rachel A Yang Stanley Cho Sydney N Hughes Michele L Sarazen Source Type: research
Adaptability of Heteropolytungstate Anions as Efficient Anode Redox Mediators in Redox Flow Polymer Electrolyte Fuel Cells
In this study, heteropolytungstate anions with different heteroatoms were adapted as anodic redox mediators in a redox flow PEFC. In power generation tests, the redox flow PEFC with an anolyte of zinctungstate anion showed the highest performance. Zinctungstate anion exhibited the fastest reduction and oxidation rates among the W-HPAs investigated in this study.PMID:38628077 | DOI:10.1002/cssc.202301305 (Source: ChemSusChem)
Source: ChemSusChem - April 17, 2024 Category: Chemistry Authors: Shinji Naruse Hiroki Muroyama Toshiaki Matsui Koichi Eguchi Source Type: research
CO2 Valorization in Deep Eutectic Solvents
ChemSusChem. 2024 Apr 17:e202400197. doi: 10.1002/cssc.202400197. Online ahead of print.ABSTRACTThe deep eutectic solvent (DES) has emerged in recent years as a valuable medium for converting CO2 into valuable chemicals because of its easy availability, stability, and safety, and its capability to dissolve carbon dioxide. CO2 valorization in DES has evolved rapidly over the past 20 years. As well as being used as solvents for acid/base-promoted CO2 conversion for the production of cyclic carbonates and carbamates, DESs can be used as reaction media for electrochemical CO2 reduction for formic acid and CO. Among these produ...
Source: ChemSusChem - April 17, 2024 Category: Chemistry Authors: Zhenbo Guo Zhicheng Zhang Yuchen Huang Tianxing Lin Yixin Guo Liang-Nian He Tianfei Liu Source Type: research
Microwave Depolymerization of Lignin via Dynamic Vapor Flow Reaction System: HCOOH as Pretreatment Solvent or Reforming Solvent Vapor
This study provided potential strategies for the efficient conversion of kraft lignin into high-value platform chemicals.PMID:38629614 | DOI:10.1002/cssc.202400151 (Source: ChemSusChem)
Source: ChemSusChem - April 17, 2024 Category: Chemistry Authors: Wenliang Wang Yishuai Fu Yutong Chen Hui Miao Hui Zheng Jiawen Pan Ziwei Wang Yuchen Liu Weikun Jiang Source Type: research
Magnetically Recyclable Borane Lewis Acid Catalyst for Hydrosilylation of Imines and Reductive Amination of Carbonyls
ChemSusChem. 2024 Apr 17:e202400058. doi: 10.1002/cssc.202400058. Online ahead of print.ABSTRACTFluorinated arylborane-based Lewis acid catalysts have shown remarkable activity and serve as ideal examples of transition metal-free catalysts for diverse organic transformations. However, their homogeneous nature poses challenges in terms of recyclability and separation from reaction mixtures. This work presents an efficient technique for the heterogenization of boron Lewis acid catalysts by anchoring Piers' borane to allyl-functionalized iron oxide. This catalyst demonstrates excellent activity in the hydrosilylation of imine...
Source: ChemSusChem - April 17, 2024 Category: Chemistry Authors: Vitthal B Saptal Prabodh Ranjan Radek Zbo řil Marek Nowicki Jedrzej Walkowiak Source Type: research
Exploring Advanced Oxygen Reduction Reaction Electrocatalysts: The Potential of Metal-Free and Non-Pyrolyzed Covalent Organic Frameworks
ChemSusChem. 2024 Apr 17:e202400558. doi: 10.1002/cssc.202400558. Online ahead of print.ABSTRACTOxygen reduction reaction (ORR) electrocatalysis is an area of increasing interest for the in-situ production of H2O2 or the development of energy-related devices such as hydrogen fuel cells. Although pyrolyzed catalysts still offer the best performances to date with reference to the organic-based catalysts, metal-free and non-pyrolyzed covalent organic frameworks (COFs) stands out as promising alternatives candidates due to their favourable characteristics such as crystallinity, porosity, and organic composition, allowing the s...
Source: ChemSusChem - April 17, 2024 Category: Chemistry Authors: Marcos Mart ínez-Fernández Jose L Segura Source Type: research
Implications of Defect Density and Polymer Interactions for CO2 Capture on Amine-Functionalized MIL-101(Cr)
ChemSusChem. 2024 Apr 16:e202400249. doi: 10.1002/cssc.202400249. Online ahead of print.ABSTRACTRising anthropogenic carbon emissions have dire environmental consequences, necessitating remediative approaches, which includes use of solid sorbents. Here, aminopolymers (poly(ethylenimine) (PEI) and poly(propylenimineimine) (PPI)) are supported within solid mesoporous MIL-101(Cr) to examine effects of support defect density on aminopolymer-MOF interactions for CO2 uptake and stability during uptake-regeneration cycles. Using simulated flue gas (10 % CO2 in He), MIL-101(Cr)-ρhigh (higher defect density) shows 33 % higher upta...
Source: ChemSusChem - April 17, 2024 Category: Chemistry Authors: Rachel A Yang Stanley Cho Sydney N Hughes Michele L Sarazen Source Type: research
Adaptability of Heteropolytungstate Anions as Efficient Anode Redox Mediators in Redox Flow Polymer Electrolyte Fuel Cells
In this study, heteropolytungstate anions with different heteroatoms were adapted as anodic redox mediators in a redox flow PEFC. In power generation tests, the redox flow PEFC with an anolyte of zinctungstate anion showed the highest performance. Zinctungstate anion exhibited the fastest reduction and oxidation rates among the W-HPAs investigated in this study.PMID:38628077 | DOI:10.1002/cssc.202301305 (Source: ChemSusChem)
Source: ChemSusChem - April 17, 2024 Category: Chemistry Authors: Shinji Naruse Hiroki Muroyama Toshiaki Matsui Koichi Eguchi Source Type: research
CO2 Valorization in Deep Eutectic Solvents
ChemSusChem. 2024 Apr 17:e202400197. doi: 10.1002/cssc.202400197. Online ahead of print.ABSTRACTThe deep eutectic solvent (DES) has emerged in recent years as a valuable medium for converting CO2 into valuable chemicals because of its easy availability, stability, and safety, and its capability to dissolve carbon dioxide. CO2 valorization in DES has evolved rapidly over the past 20 years. As well as being used as solvents for acid/base-promoted CO2 conversion for the production of cyclic carbonates and carbamates, DESs can be used as reaction media for electrochemical CO2 reduction for formic acid and CO. Among these produ...
Source: ChemSusChem - April 17, 2024 Category: Chemistry Authors: Zhenbo Guo Zhicheng Zhang Yuchen Huang Tianxing Lin Yixin Guo Liang-Nian He Tianfei Liu Source Type: research
Hierarchical Ni3V2O8@N-Doped Carbon Hollow Double-Shell Microspheres for High-Performance Lithium-Ion Storage
ChemSusChem. 2024 Apr 16:e202400091. doi: 10.1002/cssc.202400091. Online ahead of print.ABSTRACTTransition metal oxides (TMOs) are highly dense in energy and considered as promising anode materials for a new generation of alkaline ion batteries. However, their electrode structure is disrupted due to significant volume changes during charging and discharging, resulting in the short cycle life of batteries. In this paper, the hierarchical Ni3V2O8@N-doped carbon (Ni3V2O8@NC) hollow double-shell microspheres were prepared and used as electrode materials for lithium-ion batteries (LIBs). The utilization efficiency and ion trans...
Source: ChemSusChem - April 16, 2024 Category: Chemistry Authors: Yu Zhao Xiaobin Li Ning Li Dongqiang Zhang Haowen Ma Xuecheng Zhan Shiling Zhao Source Type: research
Towards the Use of Renewable Syngas for the Decarbonization of Industry
ChemSusChem. 2024 Apr 16:e202400059. doi: 10.1002/cssc.202400059. Online ahead of print.ABSTRACTIn this article we analyze how syngas produced in a renewable way can replace fossil-fuel based syngas production and thereby play an essential role in the decarbonization of industry. We show that in essentially all industrial applications renewable H2 and/or CO can replace syngas from fossil fuel feedstocks, and quantify the flows of these chemical building blocks required for the transformation of industry towards a net-zero emitting sector. We also undertake a techno-economic analysis, in which we demonstrate that under spec...
Source: ChemSusChem - April 16, 2024 Category: Chemistry Authors: Remko Detz Marit Beerse Nicole Meulendijks Pascal Buskens Bob van der Zwaan Source Type: research
Photo-switchable Collectors for the Flotation of Lithium Aluminate for the Recycling of the Critical Raw Material Lithium
ChemSusChem. 2024 Apr 16:e202301900. doi: 10.1002/cssc.202301900. Online ahead of print.ABSTRACTFlotation of the mineral lithium aluminate by application of the natural product punicine and some derivatives as collectors is examined. Punicines, 1-(2´,5´-dihydroxyphenyl)-pyridinium compounds, are switchable molecules whose properties can be changed reversibly. They exist as cations, neutral mesomeric betaines, anions, and dianions depending on the pH. In light, they form radicals. Five punicine derivatives were prepared which possess β-methyl, β-chlorine, γ-tert.-butyl, and γ-acetyl groups attached to the pyridinium r...
Source: ChemSusChem - April 16, 2024 Category: Chemistry Authors: Ali Zgheib Maximilian H Fischer Jan C Namyslo Ursula E A Fittschen Annett Wollmann Alfred P Weber Andreas Schmidt Source Type: research
Triflic Acid-Assisted Regioselective Bromination of Quinoxaline Derivatives Enables a Facile Synthesis of Polymer PTQ10
This study investigates triflic acid-assisted regioselective bromination of quinoxaline derivatives and proposes an alternative synthetic pathway for PTQ10. The developed route benefits from concise synthetic steps, a dependable procedure, and high overall yield. Starting with the condensation of 4,5-difluorobenzene-1,2-diamine with ethyl oxoacetate to yield 6,7-difluoroquinoxaline-2-ol, subsequent triflic acid-assisted regioselective bromination produces 5,8-dibromo-6,7-difluoroquinoxaline-2-ol in high yield. Alkylation under Mitsunobu reaction conditions yields 5,8-dibromo-6,7-difluoro-2-(2-hexyldecyloxy)quinoxaline, fol...
Source: ChemSusChem - April 16, 2024 Category: Chemistry Authors: Junmo Kang Shin Yeong Kim Hwan Hee Jo Kyukwan Zong Source Type: research
