Article
Energy & Fuels
Pawel Baran, Bronislaw Buczek, Katarzyna Zarebska
Summary: Experimental results show that active carbon modified with potassium hydroxide exhibits a significantly increased capacity for hydrogen adsorption at low temperatures, with the adsorbed volume nearly four times higher than before modification.
Article
Chemistry, Physical
Giuseppe Conte, Alfonso Policicchio, Oreste De Luca, Petra Rudolf, Giovanni Desiderio, Raffaele G. Agostino
Summary: The transition to a carbon-neutral energy sector requires the development of new storage materials for hydrogen and methane as well as new solutions for carbon capture and storage. Activated carbons, with their high specific surface area and other favorable properties, are considered promising adsorbents for these purposes. This study focuses on the synthesis and characterization of activated carbons starting from amorphous cellulose, with and without the inclusion of copper nanoparticles, and investigates the effects of different nanoparticle concentrations on porosity and gas storage properties.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Egert Moller, Rasmus Palm, Kenneth Tuul, Meelis Harmas, Miriam Koppel, Jaan Aruvali, Marian Kulaviir, Enn Lust
Summary: This study synthesized highly ultramicroporous carbon materials by chemically activating peat with low concentrations of ZnCl2, resulting in high micropore ratios and efficient hydrogen adsorption under low-pressure conditions.
Article
Chemistry, Physical
Nur Syazwani Che Mazlan, Muhammad Firdaus Asyraf Abdul Halim Yap, Mohammad Ismail, Muhammad Syarifuddin Yahya, Nurul Amirah Ali, Noratiqah Sazelee, Yew Been Seok
Summary: It is reported that the addition of activated carbon (AC) improves the hydrogen storage ability of ball-milled lithium alanate (LiAlH4). LiAlH4-10 wt.% AC composite exhibits lower onset decomposition temperature, enhanced desorption kinetics, and higher hydrogen release compared to as-received and as-milled LiAlH4. The presence of Li3AlH6 and carbon bonding in the LiAlH4-10 wt.% AC composite is verified by XRD and FTIR measurements.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Fatma Oguz Erdogan, Cenk Celik, Anil Can Turkmen, Ali Enis Sadak, Evren Cucu
Summary: Novel zeolite/carbon composites were synthesized to determine their hydrogen storage properties, with activated carbon, graphene, and multi-walled carbon nanotubes used as carbon sources. The activated carbon exhibited high BET surface area, total pore volume, and micropore volume. In hydrogen sorption tests, the zeolite/activated carbon composite showed a hydrogen storage capacity of 1.3 wt%. Thus, ZAC is a promising adsorbent for hydrogen storage.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Hongyu Wang, Yibing Xie
Summary: PANI-ACF, synthesized through electrochemical deposition on activated carbon fibers, demonstrates excellent capacitance and flexibility in wearable bracelet supercapacitor applications.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Environmental
Nikolaos Kostoglou, Christian Koczwara, Sebastian Stock, Christos Tampaxis, Georgia Charalambopoulou, Theodore Steriotis, Oskar Paris, Claus Rebholz, Christian Mitterer
Summary: The study investigates the potential applications of a nanoporous polymer-/polyaniline-derived activated carbon (PDAC) in hydrogen storage and supercapacitor energy storage. The PDAC demonstrates superior hydrogen adsorption performance and supercapacitor cell performance compared to conventional commercial activated carbon, attributed to the smaller pore sizes of the PDAC structure.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Ar Rafi Ferdous, Syed Shaheen Shah, M. Nasiruzzaman Shaikh, Hasi Rani Barai, Mohsin Ali Marwat, Munetaka Oyama, Md. Abdul Aziz
Summary: This article discusses the challenges of hydrogen storage and the potential of biomass-derived activated carbon as a solution for sustainable hydrogen storage. The article highlights the advantages of biomass sources, including their eco-friendliness, cost-effectiveness, and superior adsorption properties.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Energy & Fuels
Mingjin Xia, Jialong Zhu, Baoyong Wei, Haoquan Hu, Lijun Jin
Summary: Commercial activated carbon was modified using steam activation and chemical activation for the catalytic upgrading of heavy coal tar. The modified activated carbon significantly increased the total surface area and promoted the formation of mesopores, leading to improved upgrading performance.
Article
Engineering, Environmental
Tianshang Shan, Jiashu Li, Shengye Wu, Hui Wu, Fengshan Zhang, Guangfu Liao, He Xiao, Liulian Huang, Lihui Chen
Summary: By modifying graphitic carbon nitride with cellulose through hydrogen bonds, the photocatalytic H2O2 production rate and efficiency can be significantly improved.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yongji Wu, Yurong He, Ming Zhai, Tianqi Tang
Summary: Research shows that using wet activated carbon samples and ice induction can effectively improve the synthesis rate and storage capacity of methane hydrates. By combining certain water content, appropriate particle size of activated carbon, and suitable pressure conditions, methane hydrates with high methane storage capacity can be obtained. This innovative technology is of great significance for the development of solidified natural gas technology.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Jiaqiao Zhang, Yan Yan, Chen Zhang, Zhan Xu, Xiao Li, Gutian Zhao, Zhonghua Ni
Summary: This study demonstrates the dominant role of transverse mechanical properties of composites in cryo-compressed hydrogen (CcH2) storage vessel subjected to cryogenic temperate (CT) and high pressure. By modifying epoxy resin with polyethylene glycol 600 (PEG 600), high strength and toughness at CT were achieved, and the modified resins were applied to the design of the vessel. The results show that modified epoxy resin maintains high strength while reducing elastic modulus, and the PEG 600 modifier reduces winding plies and increases the utilization rate of carbon fiber strength.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, Kun-Che Hu, Hsin-Chih Lin, Kun-Ming Lin
Summary: The commercial magnesium alloy ZK60 was used as a hydrogen storage material, with the addition of activated carbon and copper to investigate their effects on hydrogen absorption characteristics. The addition of 5 wt% activated carbon increased hydrogen absorption capacity, while the addition of copper reduced absorption kinetics and increased hydrogen capacity. Microstructural observations showed that ball milling reduced grain size and the addition of copper produced new phases.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Guangsong Lu, Yunqian Ma, Lihua Zang, Yan Sun, Fei Yu, Rong Xue
Summary: The study demonstrated that FeGAC significantly reduced the start-up time of the anammox system and improved nitrogen removal efficiency. Additionally, FeGAC enhanced the growth and aggregation of anammox bacteria, showing great potential for practical application of the anammox process.
Article
Chemistry, Multidisciplinary
A. Ramesh, M. Jeyavelan, J. A. Alex Rajju Balan, O. N. Srivastava, M. Sterlin Leo Hudson
Summary: This paper discusses the electrochemical energy storage and gas adsorption performance of commercial nanoporous activated carbon. The results show that the sample exhibits high specific capacitance and low capacitance loss.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Polymer Science
Di Jiang, Na Chu, Yue Zhang, Wei-Dong Wang, Fan-Long Jin, Soo-Jin Park
Summary: A silane coupling agent was used to modify the surface of expanded graphite, which was subsequently used as a thermally conductive filler to fabricate DGEBA/EG composites with high thermal conductivity. The addition of Si@EG significantly improved the thermal conductivity of the composites, but decreased the impact strength.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Hao Sun, Seul-Yi Lee, Soo-Jin Park
Summary: Photocatalytic technology is a promising alternative for water treatments, but its practical application is limited by low efficiency and selectivity. In this study, two-dimensional zinc oxide nanosheets decorated with copper-palladium bimetallic nanoparticles were synthesized for the degradation of organic dyes in water. The prepared composites showed superior photocatalytic performance compared to pristine ZnO nanosheets under visible-light irradiation, attributed to enhanced separation and transfer efficiency of charge carriers. The highest catalytic efficiency was achieved by CuPd/ZnO nanocomposite with 0.5 wt% CuPd, achieving 95.3% removal of methyl orange within 45 minutes. This study provides a new avenue for the design and fabrication of high-performance photocatalysts for water treatments.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yasser Zare, Kyong Yop Rhee, Soo-Jin Park
Summary: A new Halpin-Tsai model is developed to calculate the modulus of halloysite-nanotube based composites considering the nets of filler and interphase. The calculations match well with experimental facts, and the parametric examinations show acceptable outputs.
SURFACES AND INTERFACES
(2023)
Review
Chemistry, Analytical
Ali Mohammadpour-Haratbar, Seyyed Behnam Abdollahi Boraei, Yasser Zare, Kyong Yop Rhee, Soo-Jin Park
Summary: Breast cancer is the second most common cancer in the world, and various biosensor strategies, including electrochemical biosensors, have been studied for its recognition. Graphene-based electrochemical biosensors have received increasing attention due to their outstanding mechanical and electrical performances. This review examines the latest advances in graphene-based electrochemical biosensors for breast cancer biosensing, analyzing the detection limit, linear range, and diagnosis techniques for each biosensor, discussing prospects, challenges, and potential strategies for enhancing their performance.
Article
Chemistry, Multidisciplinary
Ari Chae, G. Murali, Seul-Yi Lee, Jeonghwan Gwak, Seon Joon Kim, Yong Jin Jeong, Hansol Kang, Seongmin Park, Albert S. Lee, Dong-Yeun Koh, Insik In, Soo-Jin Park
Summary: Recently, MXene-based wearable hydrogels have become promising candidates for epidermal sensors due to their softness and unique properties. However, it is challenging to achieve reliable sensing performance and prolonged service life due to MXene oxidation in water-containing hydrogels. To address this issue, catechol-functionalized poly(vinyl alcohol) (PVA-CA)-based hydrogels are proposed to inhibit MXene oxidation, resulting in rapid self-healing and superior strain sensing behaviors. The PVA-CA-MXene hydrogel demonstrates potential for real-time motion monitoring and accurate signal classification using deep learning models.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Kugalur Shanmugam Ranjith, Seul-Yi Lee, Seyed Majid Ghoreishian, Nilesh R. Chodankar, Ganji Seeta Rama Raju, Swati J. Patil, Yun Suk Huh, Soo-Jin Park, Young-Kyu Han
Summary: Defect and interface engineering can significantly improve the electrochemical performance of heterostructured electrode materials, as shown in this study on MXene nanosheets-tagged heteroatom-doped graphitic carbons wrapped CoSe2. The composites exhibit excellent performances in hydrogen evolution reaction and supercapacitor applications, with high specific capacity and energy density, as well as superior stability.
Article
Environmental Sciences
Urooj Kamran, Seul-Yi Lee, Kyong Yop Rhee, Soo-Jin Park
Summary: In this study, sustainable nanocomposites were successfully prepared from agriculture waste (rice husk)-derived biochar precursor, and loaded with nickel-doped, base-treated titanium dioxide nanomaterials for efficient lead (Pb2+) removal from aqueous media. The optimized sample (Ni0.01@Na-TiO2/BC) exhibited a high Pb2+ adsorption capability of 122.3 mg g(-1) under the optimum adsorption conditions, attributed to its specific surface area and excess functional sites. The kinetic and isothermal examinations showed that the adsorption of Pb2+ followed pseudo 2nd order and Langmuir models. Furthermore, the optimized sample demonstrated superior adsorption selectivity for Pb2+ ions in a multi-metallic system compared to other ions.
Article
Engineering, Manufacturing
Yinhang Zhang, Bin Ye, Gang Zhou, Ling Li, Wenhui Geng, Lei Yao, Fei Zhang, Junwen Xie, Soo-Jin Park, Zhi Yang, Chengzhe Huang
Summary: In this study, carbon nanotubes were intercalated into oriented graphite nanoplatelets to construct conductive networks for multifunctional thermal management materials. The composite film exhibited high in-plane thermal conductivities and remarkable electrothermal and electromagnetic interference (EMI) shielding performances. It showed a temperature of 140 degrees C under an external voltage of 4V and an electromagnetic interference shielding effectiveness of 2537 dB cm^-1.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Chemistry, Physical
Meiying Cui, Li Wei, Soo-Jin Park, Seok Kim
Summary: To increase the capacitance of an inorganic electrode material, CoFe-layered double hydroxide (LDH) was grafted onto the surface of hexagonal-flower-like NiCo2O4. Various composites with different Co/Fe ratios were grown directly on Ni foam using the hydrothermal method. The composite with a Co/Fe molar ratio of 1:2 (NiCo2O4 @Co1Fe2-LDH) exhibited the best electrochemical performance, with a specific capacitance of 2595 F g-1 at a current density of 1 A g-1. The composite prevented aggregation of CoFe-LDH, leading to high specific capacitance and good stability. The electrode was used in a packaging asymmetric capacitor, resulting in a maximum energy density of 27.33 Wh kg-1 at a power density of 800 W kg-1 and an excellent capacitive retention of 96% even after 5000 charge-discharge cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Multidisciplinary Sciences
Mostafa Vatani, Yasser Zare, Nima Gharib, Kyong Yop Rhee, Soo-Jin Park
Summary: This article introduces a novel model for predicting the efficient conductivity of graphene-polymer systems. Simple equations are used to determine the percolation start, the share of graphene and interphase pieces in the nets. The resistances of tunneling and interphase parts are correlated to graphene conductivity. Experimental data analysis and calculations validate the correctness of the model.
SCIENTIFIC REPORTS
(2023)
Review
Nanoscience & Nanotechnology
Srikanta Palei, G. Murali, Choong-Hee Kim, Insik In, Seul-Yi Lee, Soo-Jin Park
Summary: Perovskite solar cells (PSCs) with a power conversion efficiency of 25.7%, close to the Shockley-Queisser limit, are considered a strong candidate for next-generation energy harvesting. However, stability and reliability issues pose challenges for commercialization. MXenes, as two-dimensional materials, show promise in solar cell applications due to their conductivity, mobility, transparency, tunable work function, and mechanical properties. By using MXenes in different components, PSCs can achieve enhanced conductivity and stability.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jong-Hoon Lee, Seul-Yi Lee, Soo-Jin Park
Summary: In recent years, porous carbon materials have been developed for supercapacitor applications. Carbon aerogels with three-dimensional porous networks are promising for electrochemical energy storage. Physical activation using gaseous carbon dioxide provides controllable and eco-friendly processes, while chemical activation produces wastes. The activated carbon aerogels achieved a high specific surface area and large total pore volumes, leading to a high electrical double-layer capacitance. The specific gravimetric capacitance reached up to 89.1 F g(-1) with a high capacitance retention of 93.2% after 3000 cycles.
Article
Chemistry, Multidisciplinary
Seul-Yi Lee, Yeong-Hun Kim, Roop L. Mahajan, Soo-Jin Park
Summary: In this study, a novel approach to determine the London dispersive components of the surface free energy of ACFs was proposed using inverse gas chromatography. The results showed that our method provides more accurate and reliable values compared to the traditional method, making it a valuable tool for designing interface engineering in adsorption-related applications.
Article
Materials Science, Multidisciplinary
Seong-Hwang Kim, Sang-Jin Park, Seul-Yi Lee, Soo-Jin Park
Summary: To meet the demand for faster and more powerful computing, effective heat dissipation is crucial for the longevity, reliability, and high performance of electronic systems. Graphitic material-loaded polymeric composites (GPCs) with excellent thermal conductivities are highly sought after in the field of modern electronic packaging materials. However, the enhancement efficiency of GPCs is hindered by filler agglomeration and interfacial thermal resistance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Seong-Hwang Kim, Seul-Yi Lee, Yali Zhang, Soo-Jin Park, Junwei Gu
Summary: This review provides a comprehensive overview of stealth technology and radar absorbing materials (RAMs), with a particular focus on carbon-based materials. It discusses the history and basic concepts of stealth technology and RAMs, and explores recent advancements and strategies in carbon-based RAMs for electromagnetic attenuation. The review highlights the potential of carbon-based RAMs for practical applications and emphasizes the need for further research to enhance their performance.
