Article
Chemistry, Multidisciplinary
Jose Carlos Alexandre de Oliveira, Ana Luisa Galdino, Daniel Goncalves, Pedro F. G. Silvino, Celio L. Cavalcante Jr, Moises Bastos-Neto, Diana C. S. Azevedo, Sebastiao M. P. Lucena
Summary: This study introduces a simplified pore size analysis methodology for carbonaceous materials, which predicts the pore size distribution and adsorption equilibrium of activated carbon, demonstrating the ability to predict adsorption of different gas molecules on activated carbon and providing quick solutions for screening carbonaceous materials.
FRONTIERS IN CHEMISTRY
(2021)
Article
Engineering, Chemical
Shengjun Du, Xingjie Wang, Jiawu Huang, Kirlikovali Kent, Baolin Huang, Idrees Karam, Zhong Li, Jing Xiao
Summary: Researchers have developed a series of ultramicroporous starch-based carbon materials derived from low-cost starch precursors, with potassium derivative SC-K showing high uptake capacities and superior selectivities, demonstrating potential for highly selective sieving-driven separation of gases.
Article
Environmental Sciences
Jose Carlos Alexandre de Oliveira, Paulo Ricardo Moura Rodrigues, Sebastiao Mardonio Pereira de Lucena
Summary: This study utilized molecular simulation and the representative pores method to predict the adsorption of phenol and related compounds on activated carbon with different pore sizes. The results showed the most effective pore sizes for adsorption and provided a predictive model for carbon selection and synthesis.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
S. M. P. Lucena, J. C. A. Oliveira, D. V. Goncalves, P. F. G. Silvino, S. Dantas, A. V. Neimark
Summary: A new kernel of heterogenous carbon surfaces was presented using the reactive molecular dynamics model, which explicitly incorporates edges and corrugations resulting from the oxidative etching of graphene walls. The model eliminates computational artifacts characteristic to homogeneous pore wall models. The rMD model performs similarly to the QSDFT model in reproducing carbon experimental isotherms, indicating it as a viable alternative for carbon characterization.
Article
Chemistry, Multidisciplinary
Xiaoxia Zhang, Meng Rong, Hui Cao, Tianwei Tan
Summary: In this study, a series of novel N-doped ultramicroporous carbons (NPCs) derived from rubber seed shells were prepared. The effects of ultramicroporosity and doped nitrogen content on the CO2 adsorption and separation performance were investigated, and NPC-600-4 demonstrated the best performance with high CO2 adsorption capacity and CO2/N2 selectivity.
Article
Chemistry, Applied
Shi Tu, Danxia Lin, Jiajin Huang, Liang Yu, Zewei Liu, Zhong Li, Qibin Xia
Summary: In this study, two isoreticular pillar-layer metal-organic frameworks, Co(aip)(bpy)0.5 and Co(aip)(pyz)0.5, were developed for the separation of C2H4/C2H6. The pore apertures of these frameworks are controlled by changing the length of the pillar ligands. Co(aip)(pyz)0.5, with a shorter pillar ligand, shows reduced pore size and molecular sieving separation of C2H4 from C2H6. Molecular simulation and dynamic breakthrough experiments confirm its high selectivity for C2H4.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Physical
Lorena Delgadillo-Velasco, Virginia Hernandez-Montoya, Luis A. Ramirez-Montoya, Miguel A. Montes-Moran, Ma del Rosario Moreno-Virgen, Norma A. Rangel-Vazquez
Summary: The study on simultaneously removing phosphate and aluminum from water using iron-modified activated carbons showed that the sample obtained by Oxidation-Impregnation-Drying procedure exhibited the best adsorption performance in single system and a synergistic effect in binary system. The principal adsorption mechanism was related to electrostatic interactions according to molecular simulation results.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Mi Tian, Matthew J. Lennox, Alexander J. O'Malley, Alexander J. Porter, Benjamin Kruener, Svemir Rudic, Timothy J. Mays, Tina Duren, Volker Presser, Lui R. Terry, Stephane Rols, Yanan Fang, Zhili Dong, Sebastien Rochat, Valeska P. Ting
Summary: Our study reveals that pore geometry has a significant impact on densification of confined H-2, while pore size remains the critical factor determining hydrogen storage capacities. Understanding the effects of pore geometry and size is essential for developing porous adsorbents tailored for maximizing H-2 storage capacities for sustainable energy applications.
Article
Nanoscience & Nanotechnology
Fuqiang Chen, Xinglei Huang, Kaiqing Guo, Liu Yang, Haoran Sun, Wei Xia, Zhiguo Zhang, Qiwei Yang, Yiwen Yang, Dan Zhao, Qilong Ren, Zongbi Bao
Summary: In this study, molecular sieving separation of C3H6/C3H8 was achieved using polysaccharide-based CD-MOF-derived ultramicroporous carbon adsorbents. The optimized C-CDMOF-2-700 exhibited a delicate structure with an appropriate pore size, resulting in a high C3H6 uptake and an ultrahigh C3H6/C3H8 uptake ratio. This well-designed carbon adsorbent shows great potential for industrial C3H6/C3H8 separation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Fuqiang Chen, Xinglei Huang, Kaiqing Guo, Liu Yang, Haoran Sun, Wei Xia, Zhiguo Zhang, Qiwei Yang, Yiwen Yang, Dan Zhao, Qilong Ren, Zongbi Bao
Summary: A polysaccharide-based CD-MOF-derived ultramicroporous carbon adsorbent with finely tuned pore size was successfully prepared for the molecular sieving separation of C3H6/C3H8, showing high adsorption capacity and an ultrahigh adsorption ratio, demonstrating its potential for industrial separation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Danhua Song, Feilong Jiang, Daqiang Yuan, Qihui Chen, Maochun Hong
Summary: A novel metal-organic framework (FJI-H38) with adaptive ultramicropores and multiple active sites has been developed for efficient CO2 separation from air. It has a high adsorption capacity and selectivity for CO2, even in high humidity conditions. The material also exhibits excellent stability, recyclability, and can be synthesized in large quantities, making it a practical adsorbent for trace CO2 capture from the air.
Review
Chemistry, Multidisciplinary
Mobin Safarzadeh Khosrowshahi, Hossein Mashhadimoslem, Hadi Shayesteh, Gurwinder Singh, Elnaz Khakpour, Xinwei Guan, Mohammad Rahimi, Farid Maleki, Prashant Kumar, Ajayan Vinu
Summary: With global warming and climate change being a reality, international investments are increasingly being made in climate change mitigation. Carbon capture and separation (CCS) is gaining paramount importance as an effective solution for global warming. Sorption on porous materials, especially natural products-derived porous carbons, shows promise as an alternative to traditional CO2 capture technologies due to their sustainable availability, economic viability, and recyclability. This review provides crucial insights and analyses on the application of porous carbons in CO2 capture, including synthesis methods, structural characterization, and the use of simulation techniques. The review also outlines future research directions to progress the use of natural products-derived porous carbons for CO2 capture.
Article
Engineering, Chemical
Zhiwei Zhao, Yueyue Liu, Xing Liu, Yuan Liu, Jingwen Chen, Shixia Chen, Shuguang Deng, Jun Wang
Summary: The one-step adsorptive separation of high-purity ethylene (C2H4) from a ternary gas mixture (C2H2/C2H4/CO2) using camphor seeds husk-derived ultramicroporous carbons (CSHs) has been successfully achieved. The optimized CSH-2-700 exhibits high C2H2 adsorption capacity (2.24 mmol g(-1)) and record IAST C2H2/C2H4 selectivity (10.2) among one-step C2H4 purification adsorbents, due to its high heteroatom contents and centered pore size distributions. Moreover, CSH carbons selectively adsorb CO2 over C2H4, with a CO2/C2H4 selectivity of 1.9 under ambient conditions, making them promising adsorbents for one-step C2H4 purification from a three-component gas mixture.
Article
Materials Science, Multidisciplinary
Junpeng Yuan, Xiuying Liu, Xiaodong Li, Jingxin Yu
Summary: This study comparatively investigates the adsorption isotherms of two types of hybrid ultra-microporous materials for H-2, CH4, CO2, and N-2 using GCMC simulation, and explains their differences based on pore structure and isosteric heat of adsorption. The research also analyzes the microscale adsorption mechanism and separation performance of the materials in various gas separation scenarios. Our work provides new insights into the adsorption and separation mechanism of these materials for energy-related gases and industrial applications.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Wei Gong, Hui Cui, Yi Xie, Yingguo Li, Xianhui Tang, Yan Liu, Yong Cui, Banglin Chen
Summary: This study demonstrates efficient C2H2 adsorption and C2H2/CO2 separation by introducing preselected amino and hydroxy functionalities into metal-organic frameworks, surpassing benchmark materials and showing promising industrial potential.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.