Article
Chemistry, Physical
Wenlong Liu, Meng Lei, Xuejun Zhou, Chilin Li
Summary: In this paper, a novel heterojunction interlocked catalysis-conduction strategy is proposed to prepare a monolithic porous-pipe scaffold for LiPS accommodation. This scaffold enables excellent rate capability and long cycling stability of Li-S batteries, even under challenging conditions.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Haoxuan Liu, Jiantao Fu, Hongyi Li, Jiaqiang Sun, Xijun Liu, Yuan Qiu, Xianyun Peng, Yifan Liu, Haihong Bao, Longchao Zhuo, Rui Cao, Shusheng Zhang, Jun Luo
Summary: This study reports a catalyst characterized by single-atomic Pd sites, which exhibits remarkable activity and stability in alkaline hydrogen oxidation reaction through synergistic effect with heteroatoms. This research provides guidance for developing highly efficient and stable catalysts for alkaline fuel cells.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Review
Chemistry, Physical
Fangyi Li, Jizhou Jiang, Jiamei Wang, Jing Zou, Wei Sun, Haitao Wang, Kun Xiang, Pingxiu Wu, Jyh-Ping Hsu
Summary: Carbon-based materials have attracted great interest for their unique properties and breakthroughs in clean energy applications. However, their low selectivity and poor conductivity have hindered their commercialization. To improve hydrogen production efficiency, researchers are exploring ways to increase surface area, create interconnected porous channels, and enhance stability of carbon-based materials. This review summarizes the structural advantages and performance improvements of various porous carbon-based materials and evaluates the performance of hydrogen production methods. The role of active sites in promoting charge transport, electrical conductivity, and stability during hydrogen production is discussed. Challenges and future directions for the development of high-efficiency hydrogen 3D porous carbon-based materials are also discussed.
Article
Energy & Fuels
Huiyan Zhang, Yiwen Zhu, Qingyu Liu, Xiaowen Li
Summary: A novel method for preparing porous carbon materials from biomass pyrolysis vapors with a calcium citrate template was proposed. The effects of various factors on the yield of biomass pyrolysis products and the structure of porous carbons were investigated, leading to the establishment of optimal preparation conditions. This study provides a new and environmentally-friendly approach for the preparation of porous carbon materials, with promising hydrogen adsorption capacity.
Article
Chemistry, Physical
Xue Gao, Zeming Zhong, Liangjun Huang, Yuchen Mao, Hui Wang, Jiangwen Liu, Liuzhang Ouyang, Lei Zhang, Mengjiao Han, Xiuliang Ma, Min Zhu
Summary: Porous carbon materials modified with transition metals were prepared and investigated for their hydrogen storage performance. The results showed that the transition metal doping enhanced the interaction between hydrogen and the carbon materials, leading to higher hydrogen storage capacity and uptake capacity. Particularly, manganese-doped porous carbon material exhibited a high hydrogen storage capacity at low temperature and high pressure.
Review
Chemistry, Multidisciplinary
Hongxue Zeng, Xinghong Qu, Dong Xu, Yang Luo
Summary: This article summarizes the application of pressure swing adsorption technology in CO2 enrichment and separation, discusses the optimization methods and internal laws of porous adsorbent materials, and prospects the development needs and research focuses of CO2 adsorbent materials in industrial waste gas treatment.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Wenjie Wu, Yan Liu, Dong Liu, Wenxing Chen, Zhaoyi Song, Ximin Wang, Yamin Zheng, Ning Lu, Chunxia Wang, Junjie Mao, Yadong Li
Summary: The study successfully prepared a single-atomic copper site catalyst Cu-1/NC-900 with excellent ORR performance using a coordination pyrolysis strategy. This catalyst outperformed commercial Pt/C and CuNPs/NC-900 in alkaline media, demonstrating higher stability and methanol tolerance. The synergistic effect between copper and nitrogen atoms on the catalyst surface led to enhanced ORR performance, showing potential for the development of efficient non-noble metal catalysts in electrochemical energy conversion.
Article
Chemistry, Multidisciplinary
Lingyan Jing, Qiang Tian, Xuan Li, Jianju Sun, Wenyi Wang, Hengpan Yang, Xiaoyan Chai, Qi Hu, Chuanxin He
Summary: An organic-inorganic hybrid co-assembly strategy is used to fabricate mesoporous carbon nanofibers with controllable edge site densities, and the impact of edge population on electrochemical oxygen reduction reaction pathways is investigated. The optimized catalyst exhibits remarkable 2e(-) ORR performance, and the density of carbon edge sites can be changed to tune the ORR activity and selectivity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Chemical
Peiyong Ma, Shuwei Yao, Ziqi Wang, Fenglei Qi, Xiaohao Liu
Summary: The development of green, economic and high-performance pollutant adsorption materials is important in meeting environmental challenges. In this study, aerogel-like N-doped hierarchical porous carbon materials (NHCs) were prepared from corn straw and urea using KHCO3 as the activator. The NHC-800 material showed excellent adsorption performance for methylene blue with a maximum adsorption capacity of 1009.6 mg/g. It also selectively and effectively removed organic pollutants while retaining metal ions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Energy & Fuels
Christian Kolle Christensen, Dorthe Bomholdt Ravnsbaek
Summary: Disorder in battery electrodes, beyond classical defects, has a significant impact on battery performance but has been overlooked in the past. Recent developments in characterization methods allow for a better understanding of the disordered structures within electrodes, leading to emerging studies in this field.
JOURNAL OF PHYSICS-ENERGY
(2021)
Article
Chemistry, Physical
Jae-Hyung Wee, Keita Nomura, Hirotomo Nishihara, Doo-Won Kim, Seungki Hong, Go Bong Choi, Sang Young Yeo, Jin Hee Kim, Ho-Young Jung, Yoong Ahm Kim
Summary: The study modified the edge sites within activated carbons via thermal treatment to investigate the relationship between edge density and hydrogen evolution reaction, showing significant impacts on the electrochemical performance of lead-carbon batteries. High-temperature thermal treatment resulted in decreased defect density and enhanced crystallinity of the activated carbons.
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
Materials Science, Multidisciplinary
Yangyang Gu, Peng Dai, Wen Zhang, Zhanwen Su
Summary: Fe3O4 nanoparticles encapsulated in hierarchical porous carbon (HPC) exhibit outstanding microwave absorption performance, with a significantly improved reflection loss value of up to -57.8 dB at 7.36 GHz. The effective absorption bandwidth reaches 6 GHz, covering the frequency range of 11.92-17.92 GHz, due to the porous architecture, high specific area, and complementary effect between Fe3O4 nanoparticles and HPC.
Article
Chemistry, Multidisciplinary
Bowen Liu, Chuanbiao Bie, Yong Zhang, Linxi Wang, Youji Li, Jiaguo Yu
Summary: Hierarchically porous ZnO/g-C3N4 S-scheme heterojunction photocatalysts were prepared with ZIF-8 and urea as precursors, showing high activity in photocatalytic H2O2 production. The mechanism of charge transfer and separation within the S-scheme heterojunction was studied using Kelvin probe, in situ irradiated X-ray photoelectron spectroscopy (ISI-XPS), and electron paramagnetic resonance (EPR).
Article
Materials Science, Multidisciplinary
Minghua Xu, Depeng Meng, Ammar Bin Yousaf, Xiaowen Ruan, Xiaoqiang Cui
Summary: Efficient photocatalysts can effectively address the shortage of non-renewable resources, and the hydrophilicity of the photocatalyst plays a crucial role in hydrogen production reaction activity. This study demonstrates the synthesis of hydrophilic porous carbon nitride (HCN) by mixing melamine with cyanuric acid using the molten salt method. Spectral characterizations and water contact angle experiments confirm the presence of a hydrophilic porous structure and enhanced hydrophilicity. The hydrogen production rate of the obtained sample is 465.2 μmol g-1 h-1, which is 9.38 times higher than that of pristine carbon nitride (PCN).
Article
Physics, Condensed Matter
Zacharias G. Fthenakis, Meghnath Jaishi, Badri Narayanan, Antonis N. Andriotis, Madhu Menon
Summary: The family of monolayered Si2BN structures represents a new class of 2D materials with metallic character and stability. Detailed study of their structural and electronic properties reveals that structural differences are mainly due to variances in bond angles, while their metallic behavior is mainly attributed to the p(z) orbitals of Si.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Nanoscience & Nanotechnology
Hicham Zaid, Koichi Tanaka, Cristian V. Ciobanu, Jenn-Ming Yang, Suneel Kodambaka, Hanna Kindlund
Summary: Research has shown that a high-entropy alloy nitride thin film was grown using reactive magnetron sputtering, with its elastic modulus determined through in situ buckling tests. It was found that the alloy was stable and had higher stiffness than the parent binary nitrides due to cocktail effects expected of high-entropy alloys.
SCRIPTA MATERIALIA
(2021)
Article
Physics, Applied
Michael R. Walden, Cristian Ciobanu, Geoff L. Brennecka
Summary: This study uses density-functional theory to model the magnetic properties of bismuth-based perovskite oxides under epitaxial strain. In the BiFeO3 system, the magnetic behavior changes at 4.2% compressive strain, coinciding with transitions in magnetic order and coupling coefficients. In the BiCrO3 system, significant variations in magnetization are observed, with different magnetic orders under different strain conditions.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
William Arnold, Varun Shreyas, Yang Li, Milinda Kalutara Koralalage, Jacek B. Jasinski, Arjun Thapa, Gamini Sumanasekera, Anh T. Ngo, Badri Narayanan, Hui Wang
Summary: Solid-state lithium metal batteries with novel solid electrolytes have the potential for high energy density and safety. Sulfide-based argyrodite-class solid electrolytes are attractive due to their excellent ionic conductivity. This study synthesized F-doped argyrodites with dual dopants using a solvent-based approach and found that Li6PS5F0.5Cl0.5 exhibited the highest Li-ion conductivity and cycling performance at room temperature. The enhanced interfacial stability of Li6PS5F0.5Cl0.5 was attributed to the formation of a stable solid electrolyte interphase containing conductive species.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Yang Li, Selim Halacoglu, Varun Shreyas, William Arnold, Xiaolin Guo, Qianqian Dou, Jacek B. Jasinski, Badri Narayanan, Hui Wang
Summary: This study demonstrates the use of an ionic liquid interlayer to address interfacial issues in sulfide-based solid-state sodium batteries (SSSBs). The interlayer stabilizes the Na metal/SSE interface, enabling the formation of a stable solid electrolyte interphase (SEI) and preventing harmful reactions and Na dendrite growth. Experimental and simulation results reveal that the stable SEI is composed of reduced products of TFSI-. Symmetric cells and FeS2||Na quasi-solid-state batteries exhibit stable cycling performance and high specific capacity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Kritika Bajaj, Sarah A. Andres, Dillon T. Hofsommer, Mirza Galib, Mark S. Mashuta, Brian Bennett, Badri Narayanan, Robert M. Buchanan, Paula J. Bates, Craig A. Grapperhaus
Summary: Linkage isomers are coordination compounds with different donor atoms but the same composition. In this study, two linkage isomers derived from phenylglyoxalbis(ethylthiocarbamate) were synthesized and characterized. The antiproliferation activity of these isomers against lung cancer cells and nonmalignant lung fibroblast cells was also evaluated.
INORGANIC CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Chao Yang, Tristan Olsen, Miu Lun Lau, Kassiopeia A. Smith, Khalid Hattar, Amrita Sen, Yaqiao Wu, Dewen Hou, Badri Narayanan, Min Long, Janelle P. Wharry, Hui Xiong
Summary: Understanding the evolution of structure and morphology in nanomaterials is crucial for controlling their functionality. In this study, the effects of irradiation on the morphology and structure of amorphous and anatase TiO2 nanotubes were investigated. The anatase TiO2 nanotubes showed stability under irradiation due to their grain boundaries and surfaces, while the amorphous TiO2 nanotubes underwent irradiation-induced crystallization, with partially crystallized tubes bending due to internal stresses. These findings provide a new pathway for controlling the structure and morphology of energy storage materials.
JOURNAL OF MATERIALS RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Huajun Liu, Yongqi Dong, Mirza Galib, Zhonghou Cai, Liliana Stan, Lei Zhang, Ady Suwardi, Jing Wu, Jing Cao, Chee Kiang Ivan Tan, Subramanian K. R. S. Sankaranarayanan, Badri Narayanan, Hua Zhou, Dillon D. Fong
Summary: This research focuses on controlling the formation of conduction channels in memristive devices to improve their accuracy, by utilizing sharp protrusions in the electrode gap. Classical molecular dynamics simulations confirm that this controlled formation arises from confinement of the electric field, leading to a reproducible spatial distribution of oxygen vacancies across switching cycles.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Raiven I. Balderas, Cristian Ciobanu, Ryan M. Richards
Summary: Material design and synthesis have had significant impacts on the scientific community by uncovering the true potential of materials through enhanced properties and applications. Metal oxide (111) facets, with their unique surface arrangement, have shown enriched chemical properties and have found applications in catalysis, sorbents, batteries, etc.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Physics, Applied
Michael R. Walden, Cristian V. Ciobanu, Geoff L. Brennecka
Summary: This study validates the use of metrics of localized electronic states in predicting the trends in ferroic and dielectric properties of BiFeO3 and BiCrO3 under epitaxial strain using density-functional theory. The results suggest that localized electronic metrics can accurately predict the multiferroic characteristics of these systems, providing specific strain ranges.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Applied
Aditya Deshpande, Christian Ratsch, Cristian Ciobanu, Suneel Kodambaka
Summary: As high-entropy alloying provides new synthesis routes for functional materials, this study demonstrates computationally that stable high-entropy disulfide (HES) alloys can be achieved at low temperatures for potential applications. By analyzing various factors, such as electronegativities, valence electron concentrations, and atomic radii, the stability and structure of HES alloys can be predicted. Furthermore, replacing one of the cations can still yield stable alloys with some localized defects.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Fenghua Guo, Sathya Narayanan Jagadeesan, Ranga Teja Pidathala, SaeWon Kim, Xiaoqiang Shan, N. Aaron Deskins, A. M. Milinda Abeykoon, Gihan Kwon, Daniel Olds, Badri Narayanan, Xiaowei Teng
Summary: Green rust formed via sulfate insertion promotes the conversion of iron hydroxides in alkaline batteries, leading to increased discharge capacity and cycling life.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Coatings & Films
Sri Ranga Jai Likith, Cristian V. Ciobanu
Summary: In this study, a new type of vdW layered monochalcogenide material was reported, and its synthesis stability and thermodynamic stability under laboratory conditions were evaluated. The results show that these materials have good stability and can be used in the preparation of nanoelectronic devices.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Multidisciplinary Sciences
Quanquan Pang, Jiashen Meng, Saransh Gupta, Xufeng Hong, Chun Yuen Kwok, Ji Zhao, Yingxia Jin, Like Xu, Ozlem Karahan, Ziqi Wang, Spencer Toll, Liqiang Mai, Linda F. Nazar, Mahalingam Balasubramanian, Badri Narayanan, Donald R. Sadoway
Summary: We have developed a bidirectional, rapidly charging aluminium-chalcogen battery using a molten-salt electrolyte and a positive elemental-chalcogen electrode. This battery offers high charging rates, stability during cycling, low cost, recyclability, and fire resistance.
Article
Nanoscience & Nanotechnology
Gheorghe Stan, Cristian V. Ciobanu, Sean W. King
Summary: Atomic force microscopy (AFM) is a widely used tool for surface characterization, capable of quantitatively determining the depth and mechanical properties of thin films. It offers nondestructive and robust techniques for probing layer thickness, subsurface features, and elastic properties in various fields such as semiconductor electronics, additive manufacturing, and biomaterials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
