Article
Chemistry, Applied
Ying Liu, Jiaxin Wang, Mohamed A. Serageldin, Tao Wang, Wei-Ping Pan
Summary: The study investigated the impact of CVD time and temperature on the structure of pyrolytic carbon in ZCP synthesis, confirming that pyrolytic carbon is mainly connected by C-C and C--C bonds, while some graphitic carbon forms on the zeolite surface. The experimental results from TGA and mass spectrometer analysis provided valuable insights for designing and optimizing CVD processes for ZCP synthesis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
T. Aumond, I Batonneau-Gener, Y. Pouilloux, L. Pinard, D. Wisser, M. Moreau, H. Vezin, A. Moissette, A. Sachse
Summary: Insights into the formation mechanism of zeolite-templated carbons were achieved through thorough characterization and studies of the hybrid and carbon materials. The key steps of ZTC formation were identified, with three stages revealed: nucleation, growth, and condensation. The evolution of PAHs throughout these stages led to the development of distinct ZTC structures and properties.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Electrochemistry
Maria Jose Mostazo-Lopez, Jakob Krummacher, Andrea Balducci, Emilia Morallon, Diego Cazorla-Amoros
Summary: The electrochemical performance of nitrogen-doped and non-doped superporous activated carbons as electrodes for supercapacitors was assessed. Nitrogen-doped activated carbons showed high stability and large capacitance values, indicating their potential for improving the durability and performance of supercapacitors.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Thibaud Aumond, Herve Vezin, Isabelle Batonneau-Gener, Steven Compere, Yannick Pouilloux, Annaig Le Person, Alain Moissette, Alexander Sachse
Summary: This work reveals the importance of zeolite acidity in the synthesis of zeolite-templated carbons and its impact on the spin concentration and electrical conductivity of hybrid materials. The amount of zeolite acid sites fundamentally affects the electrical conductivity of the samples, which is a key parameter for describing the quality of ZTCs.
Article
Chemistry, Applied
Thibaud Aumond, Martin Esteves, Yannick Pouilloux, Ricardo Faccio, Alexander Sachse
Summary: The impact of crystal size of the template zeolite on the textural properties of resulting Zeolite Templated Carbons was studied, revealing that micron-sized crystals led to a higher degree of structural defects in the final ZTC. Despite both nano- and micron-sized ZTCs showing evidence of long range structural order through XRD, the presence of supermicropores and small mesopores in the micron-sized sample indicated potential limitations in characterization using XRD patterns. Simulated XRD patterns proposed a graphene-based nanoribbon structure grown in the zeolite pores as a satisfactory model for ZTCs in beta zeolite.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Applied
Hiroyuki Itoi, Yuto Kasai, Keita Morishita, Ryutaro Suzuki, Yuka Gotoh, Chika Matsuoka, Masahiro Miyaji, Rikuto Hirade, Yuichiro Tanabe, Hiroyuki Iwata, Yoshimi Ohzawa
Summary: The use of NaY zeolite as a template allows for the efficient synthesis of porous ZTC with a high surface area, providing a simpler and more feasible method compared to previous approaches.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Dong-il Kwon, Muhammad Numan, Jungmin Kim, Murat Yilmaz, Sang-Eon Park, Hyotcherl Ihee, Changbum Jo
Summary: In this study, the adsorption properties of zeolites were systematically tuned by covalently attaching organic molecules to the interior micropore walls. The post-functionalization significantly improved the selectivities of CO2/CH4 and CO2/N-2, although it slightly reduced the CO2 adsorption capacity. Among the functionalized zeolites, the one functionalized with isopropylbenzene exhibited the highest selectivities, which can be attributed to the reduction of effective micropore diameters.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Organic
James D. D. Sitter, Edgar E. E. Lemus-Rivera, Aaron K. K. Vannucci
Summary: Electrochemical synthesis techniques are currently of great interest due to their potential in synthesizing products with limited reactant and energy input. The anion pool synthesis method for organic synthesis and C-N bond coupling is explored in this report. The stability and reactivity of anionic nitrogen heterocycles are studied under reductive electrochemical conditions. The results show that the choice of electrolyte and temperature affect the stability and reactivity of the anions. The procedure compares well to green chemistry processes in terms of atom economy and PMI values.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Su-Kyung Lee, Seung Won Han, Ga-Young Cha, Jong Min Park, Hanyoung Park, Ryong Ryoo, U-Hwang Lee
Summary: Nitrogen-doped microporous carbons with zeolite-like pore structure and high specific surface area were synthesized using a zeolite template method. The carbon product pyrolyzed at 600°C showed higher content of basic-type nitrogen atoms and exhibited excellent CO2 adsorption performance.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Applied
Guangwu Yang, Liangbin Li, Hao Liu, Yuanzhuang Cheng, Yanli Chen, Xiyou Li
Summary: The study found that Ca2+, Mg2+, and Zn2+ can act as catalysts to produce high-quality zeolite templated carbon (ZTC) and lower the growth temperature. The formation mechanism of ordered ZTC structure was also revealed.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
G. Papanikolaou, D. Chille, S. Abate, S. Perathoner, G. Centi, G. Giorgianni, D. Cozza, F. Dalena, M. Migliori, G. Giordano, P. Lanzafame
Summary: Zeolite Templated Carbons (ZTCs) are a class of materials with the textural properties of template zeolites and the high conductivity of graphene-like structures, making them a valuable candidate for CO2 catalytic reduction. The oxygen content in ZTCs significantly affects the catalytic behavior, and reducing oxygen content can improve catalytic performance.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Physical
Daniele S. Oliveira, Thibaud Aumond, Lola Loupias, Leonardo L. Santos, Vinicius P. S. Caldeira, Christine Canaff, Sibele B. C. Pergher, Aurelien Habrioux, Alexander Sachse
Summary: Bio-sourced Zeolite-Templated Carbons (ZTCs) were synthesized using glycerol as a carbon source. The textural and chemical properties of ZTCs were systematically studied at synthesis temperatures ranging from 300°C to 800°C. Increasing synthesis temperature significantly affected the textural properties of ZTCs, and high-quality ZTCs were obtained at temperatures as low as 400°C. The oxygen content of ZTCs was also found to be significantly influenced by the synthesis temperature, which played a crucial role in the functionalization of ZTCs with thiourea. Functionalized bio-sourced ZTCs exhibited superior ORR activities and hydroxyl selectivities compared to other functionalized carbon materials such as graphene-based catalysts.
Article
Chemistry, Organic
Jun-Qi Zhang, Chunjiao Shen, Shihao Shuai, Ling Fang, Dandan Hu, Jiali Wang, Yu Zhou, Bukuo Ni, Hongjun Ren
Summary: A green and efficient approach for the difunctionalization of ynamides by merging the electrochemical and organoseleniumcatalyzed processes is described. This strategy features mild reaction conditions, broad functional group tolerance and high atom-economy, and requires no external chemical oxidant, providing a sustainable alternative for the synthesis of polysubstituted oxazoles.
Article
Chemistry, Inorganic & Nuclear
Ganesan Raman, Jagannath Das, Kshudiram Mantri, Jakkidi Krishna Reddy, Raksh Vir Jasra
Summary: This study investigates the formation of silicate complexes with chiral polyhydroxy substances in aqueous alkali media and their impact on zeolite synthesis. It was found that chiral acids act as templates in ZSM-5 synthesis, leading to the formation of a new partially crystalline layered silicate.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Hiroyuki Itoi, Rikuto Hirade, Chika Matsuoka, Yuto Kasai, Keita Morishita, Yuka Gotoh, Hiroyuki Iwata, Yoshimi Ohzawa
Summary: This study developed a method to synthesize high surface area zeolite-templated carbons (ZTCs) using NaY zeolite as a template. The method does not require solvents and can be used for various practical applications and fundamental studies.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Analytical
Zoubida Taleb, Amina Ramdani, Raul Berenguer, Nadia Ramdani, Mehdi Adjir, Safia Taleb, Emilia Morallon, Said Nemmich, Amar Tilmatine
Summary: This study investigates the removal of o-cresol from wastewater using ozonation and adsorption onto sodium natural bentonite (Na-Bent). The results show that the combination of ozonation and Na-Bent adsorption can effectively remove o-cresol and its by-products. Na-Bent exhibits high volume of interlayer micropores and suitable surface chemistry, leading to excellent performance in o-cresol removal.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Koki Chida, Takeharu Yoshii, Norihito Hiyoshi, Tetsuji Itoh, Jun Maruyama, Kazuhide Kamiya, Masataka Inoue, Fumito Tani, Hirotomo Nishihara
Summary: Ordered carbonaceous frameworks (OCFs) are unique carbon alloys that combine the advantages of organic-based nanoporous frameworks and carbon materials. This study demonstrates the synthesis of OCFs with single-atomic Co and Cu sites, which show developed microporosity and electrochemical activity, as well as a synergistic effect between Co and Cu.
Article
Chemistry, Physical
Alicia Trigueros-Sancho, Beatriz Martinez-Sanchez, Diego Cazorla-Amoros, Emilia Morallon
Summary: One-step dry ball-milling method was used to prepare different electrocatalysts based on cobalt(II) or iron(II) phthalocyanines supported on commercial carbon materials, without the need for pre-treatment, solvent addition, or post-processing steps. The as-prepared catalysts exhibited improved electrocatalytic performance, and the FePc supported on CNovel showed excellent activity for oxygen reduction reaction in alkaline medium. This study provides a simple and cost-effective approach for catalyst manufacturing through mechanochemistry.
Article
Electrochemistry
Gabriel Alemany-Molina, Beatriz Martinez-Sanchez, Atsushi Gabe, Takeshi Kondo, Diego Cazorla-Amoros, Emilia Morallon
Summary: The interest in conductive boron-doped diamond powder (BDDP) electrodes has increased due to their stability, wide potential window, large specific surface area, and versatility. They are proposed as alternative cathode catalyst supports in fuel cells, especially in automobiles. In this study, different BDDP supports were used with different particle sizes and surface oxygen contents to support different iron species for oxygen reduction reaction. The electrocatalytic performance was influenced by the surface chemistry of the BDDP supports for FePc samples, while the particle size of the BDDP support played a determining role for Fe-C3N4 samples. DFT calculations provided insights into the interaction of FePc with the diamond surface.
ELECTROCHIMICA ACTA
(2023)
Article
Thermodynamics
J. X. Flores-Lasluisa, F. Huerta, D. Cazorla-Amoros, E. Morallon
Summary: LaNi1-xCoxO3 perovskite materials were synthesized for electrochemical reactions involving molecular oxygen. Incorporation of Co induced changes in material surface and improved electrocatalytic activity. Mixing perovskite metal oxides with carbon black enhanced electron transfer and catalytic activity. LaNi0.5Co0.5O3/Vulcan showed high stability and was a suitable bifunctional catalyst for both ORR and OER.
Article
Chemistry, Physical
Behnam Hosseinzaei, Mohammad Jafar Hadianfard, Feridun Esmaeilzadeh, Maria del Carmen Recio-Ruiz, Ramiro Ruiz-Rosas, Juana M. Rosas, Jose Rodriguez-Mirasol, Tomas Cordero
Summary: The aim of this study was to synthesize chemically activated carbons from different agricultural residues and use them as supports for loading a Ni catalyst. The results showed that the activated carbons had considerable pore structures and the Ni/AC(PS) catalyst showed a superior catalytic activity. By raising the process temperature, the total amount of gas and hydrogen increased, and the highest total gas amount was achieved using Ni/AC(PS) at T = 550 degrees C.
Article
Polymer Science
Al Mamun, Francisco Jose Garcia-Mateos, Lilia Sabantina, Michaela Kloecker, Elise Diestelhorst, Ramiro Ruiz-Rosas, Juana Maria Rosas, Jose Rodriguez-Mirasol, Tomasz Blachowicz, Tomas Cordero
Summary: In this study, electrospun carbon fiber electrodes were prepared for use as catalysts in the oxygen reduction reaction. The results showed that these catalysts exhibited good activity and selectivity.
Meeting Abstract
Chemistry, Physical
Gabriel Alemany-Molina, Beatriz Martinez-Sanchez, Emilia Morallon, Diego Cazorla-Amoros
Article
Chemistry, Multidisciplinary
Cristian Daniel Jaimes-Paez, Francisco Jose Garcia-Mateos, Ramiro Ruiz-Rosas, Jose Rodriguez-Mirasol, Tomas Cordero, Emilia Morallon, Diego Cazorla-Amoros
Summary: The aim of this study is to determine the Oxygen Reduction Reaction (ORR) activity of self-standing electrospun carbon fiber catalysts obtained from different metallic salt/lignin solutions. Carbon fibers were prepared by electrospinning technique with metallic nanoparticles (Co, Fe, Pt, and Pd) embedded in organosolv lignin. The presence of metals resulted in increased porosity during carbonization, leading to improved accessibility of the electrolyte to active sites. Carbon fibers loaded with 8 wt% palladium showed the best ORR activity with superior dispersion and balanced pore size distribution.
Article
Engineering, Environmental
M. Garcia-Rollan, F. J. Garcia-Mateos, R. Ruiz-Rosas, J. M. Rosas, J. Rodriguez-Mirasol, T. Cordero
Summary: Alkalis in lignosulfonate enable the easy preparation of sustainable MgO-containing carbon catalysts by carbonization and gasification. Different carbon spheres with varied properties were obtained through different temperatures of treatment. The carbon spheres showed high selectivity to acetone as a catalyst for 2-propanol decomposition, and CO2-activated carbon spheres exhibited the highest activity and selectivity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Meeting Abstract
Chemistry, Physical
Hirotomo Nishihara, Hong-Wei Zhao, Kazuya Kanamaru, Keita Nomura, Mao Ohwada, Masashi Ito, Li-Xiang Li, Bai-Gang An, Toshihide Horikawa, Takashi Kyotani
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.