Article
Engineering, Environmental
G. V. Manohara, M. Mercedes Maroto-Valer, Susana Garcia
Summary: A novel post-synthesis modification method using the organic modifier melamine was developed for layered double hydroxides (LDHs) to create structured sorbents for CO2 capture. These modified LDHs showed significantly enhanced CO2 capture capacity compared to unmodified counterparts and commercial MMOs pellets, demonstrating potential for industrial scale applications. The organic modifier played a key role in creating porosity and providing support for the mixed metal oxides (MMOs) pellets, which exhibited excellent cycling behavior over multiple carbonation/regeneration cycles.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Biochemistry & Molecular Biology
Carlos Diaz, Maria Luisa Valenzuela, Miguel A. Laguna-Bercero
Summary: Nanomaterials have unique properties that make them highly attractive, and various solution fabrication methods have been developed for synthesizing metal and metal oxides nanoparticles. However, solid-state methods for obtaining nanomaterials are relatively scarce. This review discusses current solid-state methods and introduces a new general method for obtaining nanomaterials. By using macromolecular complexes as precursors, nanoparticles of metals and metallic oxides can be obtained via solid-state pyrolysis. The size and morphology of the nanoparticles depend on the polymer and metal arrangement. The paper also highlights the applications and challenges in this field.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Qian Yang, Hai Jun Cho, Zhiping Bian, Mitsuki Yoshimura, Joonhyuk Lee, Hyoungjeen Jeen, Jinghuang Lin, Jiake Wei, Bin Feng, Yuichi Ikuhara, Hiromichi Ohta
Summary: A solid-state thermal transistor that can control heat flow electrochemically without the use of liquids is demonstrated in this study. The transistor consists of a multilayer film and the crystal structure and thermal conductivity can be modulated through electrochemical redox treatment. This solid-state electrochemical thermal transistor has the potential to be the next-generation device in thermal management technology.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yang Wang, Qianfeng Pan, Yixuan Qiao, Xiaoyu Wang, Dingfei Deng, Fenghua Zheng, Bo Chen, Jieshan Qiu
Summary: By expanding the interlayer spacing and heat treatment, CoAl-layered metal oxide nanosheets with an enhanced interlayer spacing are synthesized and used as an anode for electrochemical deionization. The enlarged interlayer spacing provides an enhanced ion-diffusion channel and improves the utilization of electroactive sites, while heat treatment offers additional active oxidation reaction sites to facilitate the electro-sorption rate. This strategy proves the strong electronic interaction between SDS and the host layer, making LMOs a competitive candidate for electrochemical water deionization.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Somia Djelloul Bencherif, Juan Jesus Gallardo, Ivan Carrillo-Berdugo, Abdellah Bahmani, Javier Navas
Summary: A layered double hydroxide material based on Zn and Cr was developed and transformed into the corresponding oxide by heat treatment, showing good photocatalytic activity in photodegradation tests. The catalyst demonstrated 100% degradation in optimized conditions and maintained good performance after five photodegradation cycles.
Article
Multidisciplinary Sciences
Zuyun He, Jinwoo Hwang, Zhiheng Gong, Mengzhen Zhou, Nian Zhang, Xiongwu Kang, Jeong Woo Han, Yan Chen
Summary: The redox center of transition metal oxides and hydroxides is typically considered to be the metal site, but recent research has shown that proton and oxygen also play an active role in catalytic reactions and determine the reactivity. In this study, the impact of proton and oxygen (de)intercalation processes on elementary steps in the glycerol electrooxidation reaction is systematically investigated. It is found that doping Co into Ni-hydroxide promotes the deintercalation of proton and oxygen anion from the catalyst surface. This leads to the formation of oxygen vacancies in NiCo hydroxide, which increase d-band filling on Co sites and facilitate charge transfer during the 2nd C-C bond cleavage. As a result, NiCo hydroxide exhibits enhanced glycerol electrooxidation activity.
NATURE COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Manohara Gudiyor Veerabhadrappa, M. Mercedes Maroto-Valer, Yuhang Chen, Susana Garcia
Summary: The study focuses on improving the CO2 capture capacities of LDHs-based MMOs through a modified amide hydrolysis method and aqueous exfoliation technique, leading to the development of pelletized structured sorbents. These structured sorbents exhibit good mechanical stability, high surface area, pore volume, and significantly improved CO2 capture capacities at different temperatures. The pellets outperformed commercially available LDH-based pellets by several fold.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Jin An Sam Oh, Linchun He, Bengwah Chua, Kaiyang Zeng, Li Lu
Summary: Metal solid-state batteries are considered the next-generation energy storage systems with high energy density and high safety. A strong and intimate solid-state interfacial contact between sodium metal and solid-state electrolyte is crucial for good cyclic stability at high current density. Inorganic electrolytes suffer from poor stability when cycled at low current density, leading to dendrite formation and loss of solid-solid contact at the interface. Further research and engineering approaches are needed to improve the integration of sodium metal with solid-state electrolytes and enhance electrochemical performance.
ENERGY STORAGE MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Zhiping Bian, Qian Yang, Mitsuki Yoshimura, Hai Jun Cho, Joonhyuk Lee, Hyoungjeen Jeen, Takashi Endo, Yasutaka Matsuo, Hiromichi Ohta
Summary: Researchers have successfully modulated the thermal conductivity of solid-state electrochemical thermal transistors by manipulating the ordered lattice arrangement of the material, leading to improved performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Xuefei Liu, Xiaoyan Wang, Beibei Yang, Junzheng Zhang, Jun Lu
Summary: In this study, Ni-Mn-Cu-Co-Fe-Al high-entropy layered oxides (HELOs) with a layered nanosheet structure were successfully constructed by a simple pathway of topological transformation under relatively low temperature. These HELOs exhibited excellent activity and selectivity for CO2 photoelectroreduction, and also showed improved performance in a photo-assisted Zn-CO2 battery.
Article
Chemistry, Physical
Wang Yang, Liqiang Hou, Peng Wang, Yun Li, Rui Li, Bo Jiang, Fan Yang, Yongfeng Li
Summary: This study presents the rational design of hierarchical NiCo2O4 architectures with 2D-nanosheets-shell and 3D-nanocages-core for high-performance supercapacitors, addressing the challenges of sluggish reaction kinetics, low mass loading, and volume change. The designed electrode exhibits excellent electrochemical performance and provides new insights for energy storage applications.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Environmental Sciences
Subhashree Mohapatra, Himadri Tanaya Das, Bankim Chandra Tripathy, Nigamananda Das
Summary: Mixed multimetallic-based nanocomposites have shown great potential in environmental remediation and energy storage applications. A ternary CoO/Ni(OH)(2)/Cu(OH)(2) composite with sea-urchin-like morphology was synthesized and exhibited excellent photocatalytic and electrochemical performances. The composite achieved a 90% degradation of Congo red dye under visible light illumination and demonstrated a high specific capacity of 405 C g(-1) in electrochemical analysis. The assembled supercapattery also showed promising energy density and cycle stability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Engineering, Environmental
Rong Liu, Ao Zhou, Xiaorong Zhang, Jingbo Mu, Hongwei Che, Yanming Wang, Ting-Ting Wang, Zhixiao Zhang, Zongkui Kou
Summary: This review examines the advances and challenges in the applications of transition metal compounds (TMCs) as electrode materials for supercapacitors, focusing on transition metal oxides, transition metal hydroxides, and their derivatives. The fundamental principles of charge storage in supercapacitors are categorized into three typical types, with distinctions made between battery-type and pseudocapacitive electrodes. The review also provides a long-term perspective on identifying opportunities and obstacles for scaling up supercapacitors in practical applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Lili Jiang, Xiaotong Mei, Donglin Gan, Shaowei Song, Xiaobo Lei, Fanggong Cai, Yaqin Wang, Qinyong Zhang, Xiong Lu, Zhifeng Ren
Summary: This study successfully developed a series of binder-free nanoscale composites using a universal strategy, with similar regular variation patterns in conductivity and battery-mimicking pseudocapacitance properties, leading to high electrode capacitance performance. The as-prepared flexible, all-solid-state device exhibited high energy density and power density, showing the potential of the design strategy for producing high-performance energy-storage devices.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Energy & Fuels
Chenyang Wang, Jionghua Ou, Ting Zhang, Shengpeng Xia, Shunshun Kang, Shu Chen, Anqing Zheng, Zengli Zhao
Summary: In this study, a novel mixed metal oxide (WOx-TiO2-Al2O3) was developed as an efficient solid Lewis acid catalyst for the catalytic pyrolysis of lignin. At a pyrolysis temperature of 600 degrees C and a catalyst-to-lignin weight ratio of 2, the yields of bio-oil and monocyclic aromatic hydrocarbons (benzene, toluene, and xylene) can reach 30.2 wt% and 1.6 wt% respectively. The formation of M-O-M bonds between oxygenophilic metals generates electron holes that can combine with C-O bonds of phenolic compounds to facilitate the deoxygenation of lignin-derived pyrolysis vapours.
Article
Engineering, Electrical & Electronic
K. Abbas, S. Alaie, M. Ghasemi Baboly, M. M. M. Elahi, D. H. Anjum, S. Chaieb, Z. C. Leseman
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2016)
Article
Physics, Applied
M. Ghasemi Baboly, A. Raza, J. Brady, C. M. Reinke, Z. C. Leseman, I. El-Kady
APPLIED PHYSICS LETTERS
(2016)
Article
Physics, Applied
M. Ghasemi Baboly, S. Alaie, C. M. Reinke, I. El-Kady, Z. C. Leseman
JOURNAL OF APPLIED PHYSICS
(2016)
Article
Thermodynamics
Matthew L. Bauer, Christopher B. Saltonstall, Zayd C. Leseman, Thomas E. Beechem, Patrick E. Hopkins, Pamela M. Norris
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
(2016)
Article
Physics, Applied
M. Ghasemi Baboly, C. M. Reinke, B. A. Griffin, I. El-Kady, Z. C. Leseman
APPLIED PHYSICS LETTERS
(2018)
Article
Engineering, Electrical & Electronic
Dipta Sarkar, M. G. Baboly, M. M. Elahi, K. Abbas, J. Butner, D. Pinon, T. L. Ward, Tyler Hieber, Austin Schuberth, Z. C. Leseman
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2018)
Article
Engineering, Electrical & Electronic
Khalid M. Abdelaziz, James Chen, Tyler J. Hieber, Zayd C. Leseman
JOURNAL OF ELECTROSTATICS
(2018)
Article
Nanoscience & Nanotechnology
S. Alaie, M. G. Baboly, Y-B Jiang, S. Rempe, D. H. Anjum, S. Chaieb, B. F. Donovan, A. Giri, C. J. Szwejkowski, J. T. Gaskins, M. M. M. Elahi, D. F. Goettler, J. Braun, P. E. Hopkins, Z. C. Leseman
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Engineering, Electrical & Electronic
Behnam Kheyraddini Mousavi, Arash Kheyraddini Mousavi, Tyler Jordan Hieber, James Chen, Zayd Chad Leseman
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2019)
Article
Nanoscience & Nanotechnology
Dipta Sarkar, Jeffrey Brady, M. G. Baboly, Leidong Xu, Gurpreet Singh, Z. C. Leseman
Article
Nanoscience & Nanotechnology
Halil Tetik, Dan Feng, Samuel W. Oxandale, Guang Yang, Keren Zhao, Katelyn Feist, Nasrullah Shah, Yiliang Liao, Zayd C. Leseman, Dong Lin
Summary: This study presents a novel method to create precisely controlled micropore morphologies on the surface of aerogels by manipulating the local thermal conductivity of the substrate. This new approach opens up new possibilities for aerogel design and applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Md Shafkat Bin Hoque, Yee Rui Koh, Jeffrey L. Braun, Abdullah Mamun, Zeyu Liu, Kenny Huynh, Michael E. Liao, Kamal Hussain, Zhe Cheng, Eric R. Hoglund, David H. Olson, John A. Tomko, Kiumars Aryana, Roisul Galib, John T. Gaskins, Mirza Mohammad Mahbube Elahi, Zayd C. Leseman, James M. Howe, Tengfei Luo, Samuel Graham, Mark S. Goorsky, Asif Khan, Patrick E. Hopkins
Summary: High thermal conductivities were measured in thin aluminum nitride (AlN) films through steady-state thermoreflectance, with in-plane thermal conductivity surpassing even diamond thin films at low temperatures. Phonon-phonon scattering was found to drive thermal transport in these AlN films, leading to an increase in thermal conductivity as temperature decreases. This study sheds light on the interplay among boundary, defect, and phonon-phonon scattering that contributes to the high in-plane thermal conductivity of AlN thin films.
Article
Physics, Multidisciplinary
Yasser Soliman, Maryam Ziaei-Moayyed, Drew F. Goettler, Samuel W. Oxandale, Charles M. Reinke, Zayd C. Leseman
Summary: The objective of this study is to formulate a simple analytical model to describe Bragg and Mie scattering leading to the creation of bandgaps in phononic crystals. By decoupling and graphically recombining the scattering processes, a better understanding and visualization of bandgap formation is achieved. The model allows for rapid solutions due to its simplicity. Impedance mismatches are argued to yield bandgaps.
Article
Multidisciplinary Sciences
Zayd C. Leseman
Summary: A conceptual design of a microfabricated load cell utilizing radiation pressure for mechanical testing of materials is presented, allowing for testing in force, spatial, and temporal ranges not previously accessible. The design consists of 3 subsystems working in unison to test micro/nanostructured materials in tension, compression, and bending. Detailed design considerations for optical, mechanical, and thermal aspects are taken into account when using a 1 W laser at 532 nm, demonstrating high resolution in force, displacement, and temporal measurements.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Jeffrey L. Braun, Christopher H. Baker, Ashutosh Giri, Mirza Elahi, Kateryna Artyushkova, Thomas E. Beechem, Pamela M. Norris, Zayd C. Leseman, John T. Gaskins, Patrick E. Hopkins