Article
Chemistry, Multidisciplinary
Oscar R. Andrade, Veronica Rodriguez, Rafael Camarillo, Fabiola Martinez, Carlos Jimenez, Jesusa Rincon
Summary: The effect of carbon support on the activity and selectivity of N-doped TiO2 nanoparticles was analyzed in this study. The results showed that the photocatalytic performance of the prepared catalysts was enhanced due to the synergistic effect of N doping and carbon support.
Article
Polymer Science
Wenxiang Jing, Chai Yang, Shuang Luo, Xiaoyan Lin, Min Tang, Renhong Zheng, Dongming Lian, Xuegang Luo
Summary: The study introduces a novel method to synthesize silver nanoparticle-modified bamboo-based carbon aerogels for formaldehyde removal, demonstrating their high efficiency and effectiveness in adsorbing formaldehyde.
Article
Polymer Science
Halimatuddahliana Nasution, Esam Bashir Yahya, H. P. S. Abdul Khalil, Marwan Abdulhakim Shaah, A. B. Suriani, Azmi Mohamed, Tata Alfatah, C. K. Abdullah
Summary: Cellulose nanofibers (CNFs) are advanced bio-nanomaterials with unique properties that make them suitable for various applications. This study demonstrates the extraction and isolation of CNFs from carpet wastes using a supercritical carbon dioxide (Sc.CO2) treatment approach. The Sc.CO2 treatment not only increases the yield of CNFs, but also improves their quality, thermal stability, and zeta potential.
Article
Chemistry, Multidisciplinary
Kaihao Chen, Zhiqi Zhu, Tianwen Bai, Yixuan Mei, Tianlun Shen, Jun Ling, Xufeng Ni
Summary: We designed and performed a novel strategy to produce polyesters using CO2 and olefins, by individually synthesizing PCL and EVL oligomers through anionic ring-opening polymerization and conjugated addition oligomerization, and then inserting EVL oligomers into PCL by transesterification, resulting in polyesters with tunable topology and composition.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Gustavo Costa, Anita Garg, Michael P. Brady
Summary: The performance of several alumina-forming austenitic stainless steel alloys exposed to simulated CO2-based Venus atmospheric conditions was investigated. The alloys formed multilayered oxide scales, with the outer layer mainly composed of magnetite and nickel sulfides, and the inner layer mainly containing aluminum chromia. The most corrosion-resistant alloy exhibited similar performance to SS304.
Article
Chemistry, Multidisciplinary
Yanxiong Pan, Hui Li, Mary Lenertz, Yulun Han, Angel Ugrinov, Dmitri Kilin, Bingcan Chen, Zhongyu Yang
Summary: This study presents a green enzyme@MOF/MOM platform derived from lignin, which allows for immobilization of enzymes without limitations on size or isoelectric point. The co-precipitation of DDVA and low-toxicity metals Ca2+ and Zn2+ results in stable enzyme composites, with Zn-DDVA MOMs showing higher enzyme restriction than Ca-DDVA MOMs. The synthesis method has minimal environmental impact, non-toxic products, and potential applications in enzyme delivery for nutrition or biomedical purposes.
Article
Chemistry, Applied
Fan Yang, Yuta Saiki, Koichi Nakaoka, Tadashi Ema
Summary: This study reported the solvent-free N-formylation reaction catalyzed by Cu(OAc)(2), which used CO2 and phenylsilane to react with 2-(methylamino)pyridine and produced N-methyl-N-(2-pyridyl)formamide. The improved solubility of copper ion and enhanced nucleophilicity of acetate ion played positive roles in the activation of phenylsilane.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Materials Science, Multidisciplinary
Gokul Obulan Subramanian, Sung Hwan Kim, Junjie Chen, Changheui Jang
Summary: Two different types of alloys showed varying levels of corrosion behavior in high temperature and pressure supercritical-CO2 environment, with the chromia-forming alloy exhibiting more severe corrosion. Pre-oxidation treatment improved corrosion resistance by preventing Fe-rich oxide nodule formation and oxide spallation, especially for alloy A with formation of alpha-Al2O3.
Article
Engineering, Environmental
Mahdi Ghorbani, Hossein Tajik, Mehran Moradi, Rahim Molaei, Arash Alizadeh
Summary: In this study, multifunctional carbon dots (CDs) were synthesized from the secreted metabolites of baker's yeast. The CDs exhibited antimicrobial and antioxidant activities and were found to be non-toxic. Furthermore, the CDs were used to fabricate antimicrobial bacterial nanocellulose membranes, which showed broad-spectrum antimicrobial activity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Kentaro Kadota, You-Lee Hong, Yusuke Nishiyama, Easan Sivaniah, Daniel Packwood, Satoshi Horike
Summary: Conversion of CO2 into highly porous crystalline MOFs at ambient temperature and pressure has been achieved in a one-pot process, offering a potential solution to the challenge of realizing a carbonneutral society.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Ting Li, Minghui Chen, Quan Shi, Ji Xiong, Yaqing Feng, Bao Zhang
Summary: TE-POPs, a pyridinium-based ionic porous organic polymer, was synthesized via a one-pot method and exhibited high thermal and chemical stability. It showed great CO2 adsorption capacity and could efficiently catalyze CO2 and epichlorohydrin to produce chloropropylene carbonate without the need for co-catalysts or metals. Additionally, it displayed a wide substrate scope and excellent recyclability, making it a promising heterogeneous catalyst for CO2 cycloaddition.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Huda Al Qader, Ahmed M. Jasim, Hani Salim, Yangchuan Xing, David Stalla
Summary: This study evaluated the effect of carbon nanofibers coated by aluminum oxide as a reinforcement on the properties of cement mortars. It was found that the addition of aluminum oxide/carbon nanofiber led to improved compressive strength, reduced strength degradation, and decreased drying shrinkage.
Article
Chemistry, Multidisciplinary
Miao Shen, Weiyan Jiang, Kun Liang, Sufang Zhao, Rui Tang, Linjuan Zhang, Jian-Qiang Wang
Summary: A new molten-salt-assisted electrochemical etching method was developed to synthesize fluorine-free Ti3C2Cl2, allowing for the modification of surface terminations and enhancement of electrode material performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Materials Science, Multidisciplinary
Victor Morales-Florez, Arturo Dominguez-Rodriguez
Summary: This review article provides a comprehensive overview and discussion on the fabrication methods and mechanical properties improvement of ceramic matrix composites using different carbon allotropes as reinforcements. Although significant improvements have been achieved, there are still some critical issues that need to be addressed in order to fully exploit the potential of this reinforcement strategy.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Engineering, Environmental
Leizhi Zheng, Guoqiang Yang, Jia Liu, Xingbang Hu, Zhibing Zhang
Summary: This study introduces an effective method for synthesizing various carbamates from amines, alcohol, and CO2, proposing two pathways to achieve this process and allowing for the easy recovery and reuse of DBU.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Ruohong Sui, John M. H. Lo, Christopher B. Lavery, Connor E. Deering, Kyle G. Wynnyk, Nancy Chou, Robert A. Marriott
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Chemistry, Physical
Ruohong Sui, Christopher B. Lavery, Dao Li, Connor E. Deering, Nancy Chou, Norman I. Dowling, Robert A. Marriott
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Energy & Fuels
Christopher B. Lavery, Juan J. Marrugo-Hernandez, Ruohong Sui, Norman I. Dowling, Robert A. Marriott
Article
Engineering, Chemical
John H. Jacobs, Kyle. G. Wynnyk, Romani Lalani, Ruohong Sui, Jingfeng Wu, Vicente Montes, Josephine M. Hill, Robert A. Marriott
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Chemistry, Physical
Mojgan Lotfali Kazemi, Ruohong Sui, Peter D. Clark, Robert A. Marriott
APPLIED CATALYSIS A-GENERAL
(2019)
Article
Chemistry, Physical
Ruohong Sui, Christopher B. Lavery, Connor E. Deering, Rohen Prinsloo, Dao Li, Nancy Chou, Kevin L. Lesage, Robert A. Marriott
APPLIED CATALYSIS A-GENERAL
(2020)
Review
Chemistry, Multidisciplinary
Ruohong Sui, Paul A. Charpentier, Robert A. Marriott
Summary: The self-assembly of dendritic metal oxide structures involves anisotropic polycondensation or molecular recognition mechanisms, with unique structures and properties that have a wide range of applications in drug delivery, energy conversion and storage, biomaterials, and electronic noses.
Editorial Material
Chemistry, Analytical
Ruohong Sui
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Marwa Atwa, Xiaoan Li, David O'Connell, Ruohong Sui, Robert Marriott, Viola Birss
Summary: In this study, a novel approach was used to control the pore structure of carbon powders, which improved their mass transport properties during electrochemical reactions. The results showed that adjusting the size and connectivity of the pores effectively reduced the mass transport resistance, leading to higher achievable power densities. This research has important implications for the application of porous electrode materials in fuel cells, batteries, capacitors, and other advanced energy and environment devices.
CHEMISTRY OF MATERIALS
(2023)
Article
Materials Science, Ceramics
Ruohong Sui, John H. Jacobs, Nancy Chou, Connor E. Deering, Christopher B. Lavery, Robert A. Marriott
Summary: Both affordability and stability are crucial for commercial-scale production and industrial applications of TiO2. This study investigated a facile sol-gel process using titanyl sulfate as a feedstock, which resulted in the stable formation of anatase phase with bimodal mesopores and macropores. These unique nanostructures make it suitable for catalysis and filtration applications.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
John H. Jacobs, Nancy Chou, Kaylan H. McKelvie, Jerry A. Commodore, Ruohong Sui, Kevin L. Lesage, Kyle G. Wynnyk, Ye Xiao, Mark C. Biesinger, Josephine M. Hill, Robert A. Marriott
Summary: Activated carbons derived from petcoke have the potential to reduce sulfur dioxide and carbon dioxide emissions while utilizing a common waste product. A sodium hydroxide activated petcoke carbon showed high selectivity for H2S/CH4 and H2S/CO2 in adsorption experiments. The selectivity was influenced by the surface area and oxygen content of the activated carbons.
Article
Chemistry, Multidisciplinary
John H. Jacobs, Connor E. Deering, Ruohong Sui, Amelia P. Cann, Kevin L. Lesage, Robert A. Marriott
Summary: The degradation of desiccants is an important factor in natural gas conditioning processes. Previous studies have mainly focused on the effects of regeneration gas water content, regeneration temperature, and number of thermal cycles. However, the impact of other components on the lifespan of desiccants over numerous thermal cycles remains less understood. This study explores the influence of CO2 in the process fluid on desiccant degradation. The findings reveal that increasing CO2 concentration leads to reduced degradation in zeolite 4A, zeolite 13X, and silica gels. Moreover, higher water concentrations in the regeneration gas contribute to decreased degradation at the same CO2 concentration.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Environmental
John H. Jacobs, Connor E. Deering, Ruohong Sui, Kevin L. Lesage, Robert A. Marriott
Summary: This study investigates the degradation rates of different materials during long-term cycling using a rapid cycling thermal swing adsorption apparatus. It is found that higher regeneration temperatures result in greater capacity loss for all tested materials. Interestingly, the inclusion of water in the regenerating gas stream mitigates the degradation of the desiccants.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Ruohong Sui, Connor E. Deering, Rohen Prinsloo, Christopher B. Lavery, Nancy Chou, Robert A. Marriott
Summary: This study presents a simple method for preparing 2D TiO2 nanostructures and investigates both products and reaction intermediates. Metal complexes are considered promising building blocks for desired architectures, and the self-assembly of an acetate bidentate ligand is identified as a versatile tool for manipulating the shape of final products.
FARADAY DISCUSSIONS
(2021)
Review
Chemistry, Multidisciplinary
Ruohong Sui, Paul A. Charpentier, Robert A. Marriott