Article
Chemistry, Applied
Kai Chen, Sen Weng, Jing Lu, Jianfeng Gu, Guoqi Chen, Oudong Hu, Xiancai Jiang, Linxi Hou
Summary: This study reported a facile approach to prepare nitrogen-doped carbon material with tunable pore structure, showing excellent electrochemical performance. By adjusting the calcination temperature and active agents, the morphology and pore structure of the material can be effectively controlled. The final product exhibited outstanding performance in terms of specific capacitance and cycle stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Environmental
Changming Zhang, Xiaoxia Ren, Lifang Kou, Xiaochao Zhang, Rongxian Wang, Lijing Xie, Caimei Fan
Summary: In this study, millimeter-sized N-doped porous carbon spheres were synthesized with rich micropore volume and nitrogen species under mild conditions using NaNH2 as a bifunctional activator and nitrogen source. The porous carbon spheres exhibit high CO2 uptake, excellent selectivity, recyclability, and fast adsorption rate due to the synergistic effect of micropore volume and nitrogen species, showing promising application potential for CO2 capture. Additionally, NaNH2 activation shows outstanding advantages compared to steam and KOH activation, providing a feasible method for enhancing CO2 adsorption capacity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Tianjiao Meng, Ningzhao Shang, Jianing Zhao, Ming Su, Chun Wang, Yufan Zhang
Summary: This study developed a unique class of amorphous Co coordination polymer spheres anchored onto 3D macroporous carbon support, exhibiting excellent electrocatalytic activity and oxidation ability towards glucose. The synergistic effects between the superior electrical conductivity of the 3D carbon supports and the excellent electrocatalytic activity of Co coordination polymer spheres result in exceptional catalytic activity and electroanalysis performance towards glucose.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Lingling Ma, Zhifeng Dou, Daguang Li, Jun Liu, Yang Xu, Guizhen Wang
Summary: Nitrogen-doped porous Ni@C microwave absorbers with excellent microwave absorption and thermal management capabilities were successfully fabricated using a facile Liquid-Solid-Solid method. The outstanding performance of these absorbers can be attributed to the special 3D nitrogen-doped porous Ni@C hybrid hierarchical architecture, which promotes the formation of a three-dimensional transmission network and provides multiple pathways of electromagnetic loss to enhance microwave absorption. The synthesis of these absorbers provides a new idea for low-cost development of high-performance absorbing materials.
Article
Engineering, Environmental
Hui Wang, Liang Shan, Wen Shi, Ming Wang, Guixiang Quan, Zourui Wang, Liqiang Cui, Jinlong Yan
Summary: Developing economic and efficient adsorbents is crucial for removing antibiotic residuals from contaminated water. Nitrogen-doped porous graphene-like carbon (NPGC) adsorbents were successfully synthesized and showed a high removal capacity for TC. The adsorption mechanism of TC onto N-doped carbon adsorbents was systematically studied, and NPGC demonstrated potential environmental application, including anti-interference capacity and reusability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Xueyu Cao, Xinyu Wu, Yong Liu, Haojie Geng, Siyu Yu, Shetian Liu
Summary: The study presents a new strategy of using heteroatom co-doped carbon-based catalysts with improved activity for ODHE at lower temperatures. BXCN exhibited higher catalytic performance compared to other carbon catalysts reported in literature for ODHE.
Article
Electrochemistry
Tae Hwa Hong, Yoon Hak Lee, Hyeonji Jang, Jung Tae Lee
Summary: In this study, starfish are transformed into nitrogen-doped carbon materials with high porosity to enhance the performance of electric double layer capacitors. The synthesized starfish-derived carbon exhibits a large surface area and specific capacitance, with a high capacitance retention at different current densities.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Agricultural Engineering
Lili Gai, Kai Li, Debao Niu, Ailin Zhang, Yongniu Zhang, Yuanxin Feng, Jianbin Li, Tao Liu
Summary: This study proposes an advanced approach of using sugarcane-derived porous carbon membranes as flexible binderless self-supported electrodes. The carbon membranes have a highly porous, multi-level structure and contain abundant nitrogen and oxygen functional groups, which facilitate ion adsorption and rapid electron transfer. The electrodes demonstrate favorable electrochemical characteristics in experiments.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Physical
Yan Wu, Jing-Pei Cao, Zhi-Hui Yang, Yu-Lei Wei, Qi-Qi Zhuang, Xiao-Yan Zhao, Zhi Zhou, Yao Lu, Hong-Cun Bai
Summary: The use of K2FeO4 as both an activation agent and a catalyst in the synthesis of porous carbon spheres offers a more environmentally friendly and efficient method compared to traditional methods. The resulting carbon spheres exhibit high specific capacitance and cycling stability, making them promising candidates for energy storage applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Lei Zhong, Wenhao Pan, Zhikai Shi, Chengwei Mao, Jiayao Peng, Jianlin Huang
Summary: This study reports the preparation of nickel-single-atom catalysts anchored on hollow nitrogen-doped porous carbon spheres (HNCS) for highly efficient CO2 reduction. The obtained catalyst exhibits excellent activity, selectivity, and stability, achieving high Faradaic efficiency and partial current density in the electrocatalytic CO2-to-CO conversion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Polymer Science
Mahmoud M. Abdelnaby, Mansur Aliyu, Medhat A. Nemitallah, Ahmed M. Alloush, El-Hassan M. Mahmoud, Khaled M. Ossoss, Mostafa Zeama, Moataz Dowaidar
Summary: The synthesis of nitrogen-rich porous organic polymers (POPs) through crosslinking melamine and pyrrole monomers followed by pyrolysis at different temperatures resulted in high surface area nitrogen-doped porous carbons (NPCs) with excellent CO2 uptake capacities and selectivity. The method developed in this work highlights the potential of POPs as precursors for synthesizing nitrogen-doped porous carbons with high nitrogen content and yield.
Article
Chemistry, Applied
Chuan Yuan, Mao Chen, Kai Zhu, Jun Ni, Shuang Wang, Bin Cao, Shan Zhong, Jingsong Zhou, Shurong Wang
Summary: Three-dimensionally nitrogen-doped interconnected porous carbons were prepared from cost-effective biomasses and utilized as EDLC electrodes, showing excellent capacitive behaviors and cycling stability.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Shaokun Chong, Lingling Yuan, Ting Li, Chengyong Shu, Shuangyan Qiao, Shihong Dong, Zhengqing Liu, Jing Yang, Hua Kun Liu, Shi Xue Dou, Wei Huang
Summary: The use of nitrogen and oxygen co-doped yolk-shell carbon sphere as anode material for potassium-ion batteries shows improved electrochemical performance including high initial charge capacity and cycling stability. Experimental results demonstrate the potential for high-performance hard carbon anode for PIBs.
Article
Engineering, Environmental
Feitian Ran, Xiaobin Yang, Xueqing Xu, Songwei Li, Yuyan Liu, Lu Shao
Summary: By synthesizing nitrogen-doped oxygen-rich carbon nanosheets with hierarchical pores through green activation processes, this study demonstrates excellent performance in terms of high specific capacitance and superior rate capability, showcasing promising application prospects for sustainable and cost-efficient energy storage materials.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Lantao Liu, Baopan Du, Ran Liu, Xiaohong Chen, Huaihe Song
Summary: In this study, Znchitosan aerogels were successfully synthesized and further carbonized to obtain NHPC aerogels. Zn ions acted as activators and soft templates to fabricate hierarchical porous structures in a carbon matrix. The structure and morphology of NHPC could be controlled by adjusting the ratio of zinc-chitosan complexes. The optimal NHPC showed excellent capacity and cycle stability in three-electrode systems, and high energy density and power density in two-electrode systems.
Article
Chemistry, Applied
Cristina Nita, Biao Zhang, Joseph Dentzer, Camelia Matei Ghimbeu
Summary: This study evaluated coconut shells, walnut shells, and corn silk as potential precursors for hard carbon materials. Among them, walnut shell hard carbon exhibited the best performance and capacity retention.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Energy & Fuels
Bich Ngoc Ho, David Pino-Perez, Camelia Matei Ghimbeu, Joseph Diaz, Deneb Peredo-Mancilla, Cecile Hort, David Bessieres
Summary: This study investigated the isotherms adsorption of methane, ethane, and propane on five different commercial activated carbons with varying textures. The results indicated that activated carbon with the highest specific surface area and a proper balance between microporous and mesoporous volumes showed the most promising adsorption capacity for natural gas components.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Chemical
Ahmed Amine Azzaz, Camelia Matei Ghimbeu, Salah Jellai, Leila El-Bassi, Mejdi Jeguirim
Summary: In this research, an ecofriendly approach was used to treat liquid and solid agricultural wastes from the olive mill industry. The treatment involved impregnating raw olive pomace with olive mill wastewater and converting the resulting sample into hydrochars and biochars through hydrothermal carbonization and slow pyrolysis methods. The study found that the yields of hydrochars were higher than biochars, and the carbon percentage and volatile matter contents varied with the treatment temperature. Higher temperatures resulted in increased macro-elements contents and decreased O/C ratios, leading to higher heating values for both hydrochars and biochars. The analysis also revealed differences in surface chemistry and functional groups between hydrochars and biochars. These findings highlight the potential applications of hydrochars and biochars in agriculture and the environment, and their potential use in co-firing with coal in industrial boilers.
Article
Chemistry, Physical
Adrian Beda, Angel M. Escamilla-Perez, Loic Simonin, Camelia Matei Ghimbeu
Summary: This study focuses on the synthesis of hard carbons from natural polyphenols derived from different vegetal extracts. The obtained hard carbons have disordered structures and a certain amount of inorganic compounds, and exhibit good electrochemical performance and cycling stability, with the best performance achieved for materials derived from myrobalan.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Chemical
Deneb Peredo-Mancilla, Camelia Matei Ghimbeu, Benedicte Rety, Bich-Ngoc Ho, David Pino, Cyril Vaulot, Cecile Hort, David Bessieres
Summary: Modifying the surface chemistry of activated carbon through oxidative thermal treatment and ammonia modification enhances its selectivity for CH4/CO2 adsorption. Increased polar surface functionalities significantly improve the selectivity factor of the activated carbon. This study demonstrates an efficient surface modification strategy for the preparation of activated carbon adsorbents with superior separation performance.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Physical
Joanna Conder, Claire Villevieille, Jean-Marc Le Meins, Camelia Matei Ghimbeu
Summary: In this study, the role of electrode/electrolyte engineering on the performance of hard carbon materials in sodium-ion batteries is systematically investigated. The results show that the choice of binder and additive has a significant impact on the electrochemical performance. Different hard carbon materials exhibit different performance, and the electrolyte choice can also affect the performance. By optimizing the electrode formulation and electrolyte selection, reasonable Coulombic efficiency, high specific capacity, and high-capacity retention can be achieved.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Adrian Beda, Francois Rabuel, Omar Rahmouni, Mathieu Morcrette, Camelia Matei Ghimbeu
Summary: Spherical hard carbon particles were synthesized from eco-friendly tannin-polyphenol precursors. The solvent and cross-linker had a major effect on material yield and particle shape/size. Mimosa-derived hard carbon exhibited higher graphitic interlayer space and higher reversible capacity.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Nanoscience & Nanotechnology
Louiza Larbi, Romain Wernert, Philippe Fioux, Laurence Croguennec, Laure Monconduit, Camelia Matei Ghimbeu
Summary: Potassium vanadium oxyfluoride phosphate was modified by a carbon coating, leading to improved electrochemical performance. Two methods, chemical vapor deposition (CVD) and pyrolysis of chitosan, were used to create the carbon coating. The CVD method resulted in a more homogeneous coating, while the chitosan method increased the specific surface area and reduced surface functionalities. The carbon-coated material showed enhanced coulombic efficiency and mitigation of electrolyte decomposition, leading to improved performance at high C-rates.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Aneeshma Peter, Benedicte Rety, Cyril Vaulot, Wajdi Heni, Thierry Steinbauer, Camelia Matei Ghimbeu
Summary: The physicochemical properties of activated carbon were investigated to evaluate its potential for adsorbing cyanuric acid. It was found that acidic pH conditions favor the adsorption process. A UV-vis spectroscopy-based method was developed to accurately measure traces of cyanuric acid in water, which can be helpful for research and development purposes. Batch adsorption experiments confirmed that the adsorption mechanism is chemisorption, and it depends on the surface chemistry of activated carbon and the reaction pH.
Article
Chemistry, Physical
Angel Manuel Escamilla-Perez, Adrian Beda, Loic Simonin, May-Line Grapotte, Jean Marc Le-Meins, Camelia Matei Ghimbeu
Summary: The relationship between the properties of hard carbon (HC) and its performance as an anode in sodium-ion batteries (NIBs) was investigated. It was found that the reversible capacity of HC is influenced by the graphitic interlayer spacing and active surface area. The capacity from the plateau region correlates with the interlayer spacing and closed porosity.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Soha Aldroubi, Badre Larhrib, Louiza Larbi, Ibrahim Bou Malham, Camelia Matei Ghimbeu, Laure Monconduit, Ahmad Mehdi, Nicolas Brun
Summary: This study reports the synthesis of boron, nitrogen co-doped carbon materials using original imidazolium salts with the tetraphenylborate anion as precursors. It was demonstrated that the presence of two benzyl groups on the imidazolium cation increased carbonization yield, promoted heteroatom-doping, improved microstructure order, and protected boron atoms from oxidation. The B, N co-doped carbon material prepared from 1,3-bis(benzyl)imidazolium tetraphenylborate exhibited fast-rate capabilities as an anode material for high-power monovalent ion batteries, maintaining 80% of the capacity after 1400 cycles at a high rate (30C) versus Li+/Li.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Nanoscience & Nanotechnology
El Hassane Lahrar, Irena Deroche, Camelia Matei Ghimbeu, Patrice Simon, Celine Merlet
Summary: This study investigates the impact of surface chemistry on the structural and dynamical properties of adsorbed ions through molecular dynamics simulations of various functionalized carbon materials. The research shows that functionalization has a limited effect on the structure of the confined electrolyte but significantly influences ion mobility. The relative importance of functional group structure and chemical nature varies depending on the type and property of the ions considered.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Adrian Beda, Francois Rabuel, Mathieu Morcrette, Stephan Knopf, Pierre-Louis Taberna, Patrice Simon, Camelia Matei Ghimbeu
Summary: The study found that the electrode porosity decreases linearly with the graphite interlayer space, reaching the lowest value for high temperature treated carbons. However, no clear correlation could be established between electrode porosity and tapped density due to various interplaying parameters affecting the latter. Compact carbon electrodes exhibited high volumetric capacity and an initial Coulombic efficiency of 92%, correlated with specific surface area and the amount of active sites.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Adrian Beda, Cyril Vaulot, Camelia Matei Ghimbeu
Summary: The porosity of hard carbon materials is commonly evaluated by nitrogen adsorption, but this study found that a series of complementary gases such as N2, Ar, CO2, O2 and H2 can provide a more comprehensive understanding of the pore structure of hard carbons, with O2 showing particularly high adsorbed volumes.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Nanoscience & Nanotechnology
Sirine Zallouz, Benedicte Rety, Loic Vidal, Jean-Marc Le Meins, Camelia Matei Ghimbeu
Summary: The study proposed a one-pot bottom-up approach to design cobalt oxide nanoparticles in mesoporous carbon, investigating the impact of pyrolysis temperature on material performance. It was found that the best compromise for high capacitance and rate capability was achieved at 700-750 degrees C.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Xuemei Liu, Chaonan Cui, Shuoshuo Wei, Jinyu Han, Xinli Zhu, Qingfeng Ge, Hua Wang
Summary: This study presents a new strategy for designing efficient photocatalysts that can convert CO2 into hydrocarbons by utilizing synergistic catalytic sites. The findings provide a solution for the selective photocatalytic reduction of CO2 to CH4.
Article
Chemistry, Multidisciplinary
Chengxian Hu, Dan Wang, Lu Wang, Ying Fu, Zhengyin Du
Summary: A novel one-pot, three-component reaction conducted under electrochemical conditions was studied. The reaction involved 2-aminothiophenols, aldehydes, and malononitrile, using TBABF4 as an electrolyte and CuI as a catalyst. The proposed reaction mechanism suggested that CuI served as an electron relay. This method offers simplified operation, high atom economy, and mild reaction conditions.
Article
Chemistry, Multidisciplinary
Zhi Yang, Yu Chen, Linxi Wan, Yuxiao Li, Dan Chen, Jianlin Tao, Pei Tang, Fen-Er Chen
Summary: A highly enantioselective method for the complete hydrogenation of pyrimidinium salts using Ir/(S,S)-f-Binaphane complex as the catalyst was developed. This method provides easy access to fully saturated chiral hexahydropyrimidines, which are prevalent in many bioactive molecules. The reactions exhibit high yields and enantioselectivities under mild reaction conditions without additives. Successful application of this methodology in a continuous flow fashion further extends its practical utility.
Article
Chemistry, Multidisciplinary
Tina Jeoh, Jennifer Danger Nill, Wujun Zhao, Sankar Raju Narayanasamy, Liang Chen, Hoi-Ying N. Holman
Summary: In this study, the enzymatic hydrolysis of cellulose was investigated using real-time infrared spectromicroscopy. The spatial heterogeneity of cellulose was found to impact the hydrolysis kinetics. Hydration affected cellulose ordering, and Cel7A preferentially removed less extensively hydrogen bonded cellulose.
Article
Chemistry, Multidisciplinary
Tiphaine Richard, Walid Abdallah, Xavier Trivelli, Mathieu Sauthier, Clement Dumont
Summary: An effective method of grafting functionalities onto lignin based on glycerol carbonate has been developed using an efficient nickel-catalysed telomerisation reaction. This method allows lignin to have new reactive functions and reduces the glass transition temperatures of modified lignins, thereby expanding the application range of lignin-based resins.
Article
Chemistry, Multidisciplinary
Jing Qi, Xiyan Wang, Gan Wang, Srinivas Reddy Dubbaka, Patrick ONeill, Hwee Ting Ang, Jie Wu
Summary: This study presents a green and environmentally friendly approach for the synthesis of imides using electrocatalytic oxidation with H2O as the oxygen source. The method eliminates the need for toxic or expensive oxidants and achieves high yields under mild reaction conditions. It shows broad substrate compatibility and potential for industrial applications.
Article
Chemistry, Multidisciplinary
Babasaheb Sopan Gore, Lin-Wei Pan, Jun-Hao Lin, Yi-Chi Luo, Jeh-Jeng Wang
Summary: Here, we report a visible light-promoted intramolecular radical cascade reaction for the construction of fluorenol and naphthalene-fused cyclopropyl carbaldehyde derivatives. This method offers mild reaction conditions, a broad substrate scope, excellent step efficiency, and scalability, without the need for external chemical oxidants. The novelty of this protocol was demonstrated by synthesizing chrysene analogs and performing late-stage functionalizations.
Article
Chemistry, Multidisciplinary
Juho Antti Sirvio, Idamaria Romakkaniemi, Juha Ahola, Svitlana Filonenko, Juha P. Heiskanen, Ari Ammala
Summary: This article discusses the method of using supramolecular interaction between an aromatic hydrogen bond donor and lignin to achieve rapid delignification of softwood at low temperatures.
Article
Chemistry, Multidisciplinary
Yunyan Meng, Chunxiang Pan, Na Liu, Hongjiang Li, Zixiu Liu, Yao Deng, Zixiang Wei, Jianbin Xu, Baomin Fan
Summary: A novel visible light-driven synthesis method for 2,3-diamines has been developed, which has mild conditions, avoids the use of metal reagents, and can synthesize diamines and diols in one pot.
Article
Chemistry, Multidisciplinary
Mingqing Huang, Haiyang Huang, Mengyao You, Xinxin Zhang, Longgen Sun, Chao Chen, Zhichao Mei, Ruchun Yang, Qiang Xiao
Summary: A direct air-oxidized strategy for the synthesis of benzo[b]phosphole oxides was developed in this study. Arylphosphine oxides were transformed into phosphinoyl radicals, which were further combined with various alkynes to achieve the desired products. DFT calculations revealed the mechanism of phosphinoyl radical formation.
Article
Chemistry, Multidisciplinary
Anwei Wang, Jiayin Huang, Chunsheng Zhao, Yu Fan, Junfeng Qian, Qun Chen, Mingyang He, Weiyou Zhou
Summary: This study demonstrates an innovative strategy for the aerobic oxidation of C(sp(3))-H bonds using gamma-valerolactone. By optimizing the reaction conditions and utilizing specific catalysts, efficient oxidation of C(sp(3))-H bonds is achieved with good chemoselectivity in certain cases.
Article
Chemistry, Multidisciplinary
Shun Li, Likai Tong, Zhijian Peng, Bo Zhang, Xiuli Fu
Summary: Sulfide compounds show promise as electrocatalysts for water splitting, but their performance is limited by factors such as limited active sites and hindered substance transport. This study successfully prepared a high-entropy sulfide (ZnCoMnFeAlMg)(9)S-8, which reduced grain size and increased specific surface area, enabling the realization of a dual-functional catalyst with multiple catalytic sites. High entropy also modulated the electronic properties of sulfides, reducing the potential energy barrier for hydrolysis. This research introduces a new approach for functionalizing high entropy nanomaterials and improves the performance of water splitting catalysts.
