Article
Chemistry, Physical
Shuqiu Wang, Yuhan Zhu, Maxime van den Bossche, Jacek Goniakowski, Claudine Noguera, Martin R. Castell
Summary: A class of planar NbnOm atomic clusters, synthesized by evaporating metallic Nb onto an Au(111) substrate in an ultrahigh vacuum environment and subsequent oxidation at elevated temperatures, have been reported. The clusters are composed of structural units with four-, five-, and sixfold rotational symmetry and can assemble to form larger planar clusters. The interaction with the Au substrate significantly alters the atomic and electronic structures of the oxide clusters, including interfacial charge transfer and structural relaxation, enabling the coexistence of a large variety of cluster configurations.
Article
Nanoscience & Nanotechnology
Thais Chagas, Guilherme A. S. Ribeiro, Barbara L. T. Rosa, Danial Bahrami, Arman Davtyan, Rafael R. Barreto, Juan C. Gonzalez, Rogerio Magalhaes-Paniago, Angelo Malachias
Summary: In this study, the researchers investigated the structural and electronic properties of Mg-doped GaAs(111) nanowires, revealing conducting Ga2Mg/Mg clusters on the lateral surfaces, enabling electrical contacts with reduced Schottky barriers. Density functional theory was used to investigate the electronic response of Ga2Mg, showing metallic behavior at room temperature and quantum confinement at low temperatures.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zhebin Fu, Hiroshi Onishi
Summary: The photocatalytic conversion of an organic compound on rutile nanoparticles dispersed in aqueous solutions was characterized using infrared absorption spectroscopy. The study demonstrates the feasibility of using infrared absorption spectroscopy to track vibrational and electronic transitions in photochemical reactions at liquid-solid interfaces.
Article
Chemistry, Multidisciplinary
Yi-Ying Sung, Harmina Vejayan, Christopher J. Baddeley, Neville V. Richardson, Federico Grillo, Renald Schaub
Summary: On-surface synthesis with designer precursor molecules is an effective method for preparing graphene nanoribbons (GNRs) with tunable electronic properties. The band gap of GNRs doped with heteroatoms remains unchanged, but hydrogenation can engineer a tunable band gap. Surface-confined hydrogenation studies on 7-armchair GNRs grown on Au(111) surfaces reveal a self-limited hydrogenation process. The electronic properties of the GNR/Au(111) system can be modified by edge and basal-plane hydrogenation, and a mechanism for the hydrogenation process is proposed.
Article
Chemistry, Physical
Karsten Lucht, Karina Morgenstern
Summary: The study reveals that functionalized azobenzene molecules form water-azobenzene complexes in the presence of water, which prefer linear arrangements mediated by functionalized end groups. These complexes can serve as model systems for investigating the influence of a solvent on surface reactions.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Li Ma, Benjamin Lynch, Frederic Wiame, Vincent Maurice, Philippe Marcus
Summary: Scanning tunneling microscopy was used to investigate the topographical and structural changes of a model 304 austenitic stainless steel surface resulting from ultra-low exposures to gaseous oxygen at room temperature. The study observed 2D nucleation and growth mechanisms until surface saturation by a nanogranular Cr(III)-enriched oxide film, providing a nanoscale understanding for improving the local stability of passivity in the Crenriched oxide film.
Article
Nanoscience & Nanotechnology
Marco Moors, Yun An, Agnieszka Kuc, Kirill Yu Monakhov
Summary: This study focuses on utilizing highly ordered titanium oxide films on an alloy surface for controlled immobilization and electronic manipulation of nanoscopic W3O9 clusters. Two stable oxide phases z'-TiOx and w'-TiOx were produced under different operating conditions, affecting the adsorption characteristics and reactivity of W3O9 clusters. The research also demonstrates the reduction of individual W3O9 units to W3O8 and the growth of large WO3 islands limited to a maximum of two unit cells under specific conditions.
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Alexander Kerelsky, Carmen Rubio-Verdu, Lede Xian, Dante M. Kennes, Dorri Halbertal, Nathan Finney, Larry Song, Simon Turkel, Lei Wang, Kenji Watanabe, Takashi Taniguchi, James Hone, Cory Dean, Dmitri N. Basov, Angel Rubio, Abhay N. Pasupathy
Summary: This study demonstrates the formation of emergent correlated phases in multilayer rhombohedral graphene without the need for twisted van der Waals layers. The study shows that two layers of bilayer graphene twisted by a tiny angle can host large regions of uniform rhombohedral four-layer graphene with a sharp van Hove singularity. Furthermore, the study suggests that the broken symmetry state in ABCA graphene could be attributed to a charge-transfer excitonic insulator or a ferrimagnet.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Physical
V. Carnevali, A. Sala, P. Biasin, M. Panighel, G. Comelli, M. Peressi, C. Africh
Summary: The electronic properties of graphene can be modified by local interaction with a metal substrate. This article proposes a reliable method of evaluating the interaction between graphene and substrate by testing the tunneling current. This method expands the capabilities of standard STM systems for studying graphene/substrate complexes.
Article
Chemistry, Multidisciplinary
Yue Sun, Koen Schouteden, Maria Recaman Payo, Jean-Pierre Locquet, Jin Won Seo
Summary: The research demonstrates the growth of insulating two-dimensional vanadium oxide directly on the HOPG surface, suggesting vanadium oxide as a promising candidate for graphene/oxide heterostructures. The obtained oxide layers are polycrystalline with mixed-valence states, mainly V5+ and V4+, and exhibit insulating properties. These findings open up potential applications for graphene-based electronic devices.
Article
Chemistry, Physical
Jonathan Baptista, Sergio Vlaic, Enrico Cofler, Dimitri Roditchev, Stephane Pons
Summary: Under specific conditions, the sequential growth of Au and Pb on Si(111) leads to a significant modification of the surface structure, creating a terraced-hill structure covered with a dense monolayer of Pb and decorated with double rows of Au atoms.
Article
Materials Science, Composites
Sourav Kumar Mahapatra, Alok Satapathy
Summary: This investigation develops and characterizes a type of multi-phase hybrid composites made of bi-directional ramie fibers, epoxy resin, and micro-sized titania particles in different proportions. The composites are fabricated using the hand layup technique and subjected to physical, compositional, and mechanical characterization tests. The results show that the inclusion of titania particles improves the mechanical properties and hardness of the composites, making them potentially useful as functional materials in wear-prone situations.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Multidisciplinary
Daniel J. Rizzo, Sara Shabani, Bjarke S. Jessen, Jin Zhang, Alexander S. McLeod, Carmen Rubio-Verdu, Francesco L. Ruta, Matthew Cothrine, Jiaqiang Yan, David G. Mandrus, Stephen E. Nagler, Angel Rubio, James C. Hone, Cory R. Dean, Abhay N. Pasupathy, D. N. Basov
Summary: The researchers successfully created nanometer-scale lateral p-n junctions using graphene/alpha-RuCl3 heterostructure near graphene nanobubbles. Through STM/STS and s-SNOM techniques, they investigated the electronic and optical responses of nanobubble p-n junctions, achieving p-n junctions with a width of around 3 nm and an electric field of approximately 10(8) V/m. The study also utilized ab initio density functional theory calculations to corroborate experimental data and provide insights into charge transfer mechanisms in 2D materials.
Review
Chemistry, Multidisciplinary
Wenbing Peng, Haolin Wang, Hui Lu, Lei Yin, Yue Wang, Bruno Grandidier, Deren Yang, Xiaodong Pi
Summary: Understanding the band alignment, interface states, interface coupling, and carrier transport properties of semiconductor heterojunctions (SHs) is crucial for designing and fabricating semiconductor structures and devices. STM and STS have played significant roles in studying the properties of SHs, such as spatial structures and electronic band structures, to propose mechanisms for carrier transport.
Article
Chemistry, Physical
A. Picone, A. Lodesani, M. Capra, A. Brambilla, F. Bottegoni, M. Jugovac, Asish K. Kundu, P. M. Sheverdyaeva, P. Moras
Summary: Interfacing graphene with ultrathin oxide films is crucial for its integration in novel electronic devices. A new method of obtaining high-quality graphene/Cr oxide interfaces is demonstrated by inserting a Cr carbide film between graphene and a Ni(1 1 1) substrate, which triggers the formation of a continuous and atomically flat Cr oxide wetting layer on top of graphene. These well-defined junctions could be used to finely control the electrical conductivity of graphene through an insulating oxide gate.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Qian Gao, Lifu Zhang, Caiyan Zheng, Shulai Lei, Shujuan Li, Zhenpeng Hu
Summary: In this study, a novel quasi-two-dimensional material structure, HSH-C-10, is proposed based on first-principles calculations. The mechanical properties and electronic structure of HSH-C-10 are investigated, revealing unique properties and potential applications.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Huili Wang, Qian Gao, Cheng Liu, Yu Cao, Shuo Liu, Baoshan Zhang, Zhenpeng Hu, Jie Sun
Summary: This study investigates the Li-storage performance and mechanical stability of black phosphorene nanotubes (BPNTs) through theoretical calculations. The results show that a-BPNTs and z-BPNTs have good Li-storage capacities, with z-BPNTs exhibiting better flexibility. The curvature of BPNTs affects both the mechanical stability and Li-migration. Furthermore, both a-BPNTs and z-BPNTs demonstrate fast Li-ion conductivity along the c-axis direction.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Physical
Huili Wang, Cheng Liu, Yu Cao, Shuo Liu, Baoshan Zhang, Zhenpeng Hu, Jie Sun
Summary: In this work, the lithiation mechanism of green phosphorus (GP) with different layers as anode materials in Li-ion batteries was investigated using first-principles calculations. The results showed that single-layer GP has a higher specific capacity and faster Li diffusion rate compared to double-layer and bulk GP. The lithiation voltage also increases with the number of GP layers. Additionally, the specific capacity of GP is higher than that of black phosphorus anode.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jie Yao, Han Wang, Bingkai Yuan, Zhenpeng Hu, Changzheng Wu, Aidi Zhao
Summary: In this study, the epitaxial growth of monolayer and bilayer CrTe3 on a graphite surface is demonstrated, and their structure, electronic, and magnetic properties are characterized and confirmed through various characterization techniques. The monolayer CrTe3 can be utilized to fabricate a lateral heterojunction consisting of ML CrTe2 and ML CrTe3, representing the first in-plane magnetic metal-semiconductor heterojunction made of two vdW materials. These findings are of great significance for the development of miniaturized antiferromagnetic spintronic devices based on vdW materials.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xin Deng, Ruihao Bai, Yuchao Chai, Zhenpeng Hu, Naijia Guan, Landong Li
Summary: This study demonstrates that coordinatively unsaturated Ni(II) sites confined in faujasite zeolite, Ni@Y, can efficiently catalyze the selective hydrogenation of various alkynes, shedding light on the design of robust catalysts and new catalytic routes by linking heterogeneous and homogeneous catalysis.
Article
Chemistry, Multidisciplinary
Yu Wang, Qian Gao, Wenhui Li, Peng Cheng, Yi-Qi Zhang, Baojie Feng, Zhenpeng Hu, Kehui Wu, Lan Chen
Summary: This study successfully realized ideal two-dimensional electron gas (2DEG) with multiple quantized states in few-layer InSe films, which provides possibilities for constructing high-performance electronic devices using two-dimensional van der Waals materials.
Article
Materials Science, Multidisciplinary
Huifang Geng, Zhuanzhuan Huang, Huaxiu Geng, Siyu Liu, Maria A. Naumova, Raffaele Salvia, Siqi Chen, Junli Wei, Lifu Zhang, Xianshao Zou, Weihua Lin, Xinyi Cai, Mingjian Yuan, Zhenpeng Hu, Xi Shen, Richeng Yu, Kaibo Zheng, Sophie E. Canton, Xuewen Fu
Summary: Recently, cesium bismuth halide perovskites have been considered as potential substitutes for cesium lead halide perovskites due to their low toxicity. However, the photophysics of cesium-bismuth halides nanocrystals (NCs) has not been fully understood due to the debated structures. This study successfully synthesized pure Cs3BiBr6 and Cs3Bi2Br9 NCs with controlled structures. The photophysical properties of the Cs3Bi2Br9 NCs were investigated, and their potential for optoelectronic applications was demonstrated.
SCIENCE CHINA-MATERIALS
(2023)
Article
Energy & Fuels
Jiaxin Guo, Yao Zheng, Zhenpeng Hu, Caiyan Zheng, Jing Mao, Kun Du, Mietek Jaroniec, Shi-Zhang Qiao, Tao Ling
Summary: Researchers have developed a new method to directly electrolyze seawater for hydrogen production. By introducing a hard Lewis acid layer on the catalyst surface, they were able to generate local alkalinity, improving the efficiency of water splitting.
Article
Nanoscience & Nanotechnology
Chunguang Zhu, Qian Gao, Chunxiao Wang, Linrui Shi, Sen Yin, Peiling Chen, Ting Guo, Zhenpeng Hu, Lei Ying
Summary: In this study, a novel multifunctional thiazole-fused quinoxalineimide semiconducting polymer (PQIA-BDTT) was developed, which exhibits NIR-II fluorescence and photothermal properties for photothermal therapy and tumor fluorescence imaging. The nanoparticles of PQIA-BDTT achieved high photothermal conversion efficiency and can be used for NIR-II fluorescence imaging at low laser fluence.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Caiyan Zheng, Huili Wang, Dan Wu, Jian Xu, Zhenpeng Hu
Summary: Proper modeling is crucial for calculating surface properties of complex oxides, such as perovskite oxides. A passivation method was proposed to handle complex polar surfaces, using pseudo-atoms with fractional charges to balance non-zero net charges. The study on LaCoO3 surfaces with different terminations showed that (1 (1) over bar 02)-LaO, (1 (1) over bar 02)-CoO2, and (0001)-LaO3 terminations were stable surfaces in different chemical environments. The passivated terminations also showed consistent oxygen vacancy formation energies and electronic structure changes with experimental results.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Qian Gao, Lifeng Ou, Zhenpeng Hu
Summary: A new carbon family is proposed through bottom-up design using polyhedral units as building blocks. 31 carbon allotropes are proposed and more than 20 structures have not been reported before. These structures have important applications in semiconductor devices, energy storage, batteries, catalysis, etc.
Article
Chemistry, Multidisciplinary
Qian Gao, Qimin Yan, Zhenpeng Hu, Lan Chen
Summary: By using first-principles calculations, a bilayer Kagome lattice with multiple van Hove singularities is designed and a novel borophene (BK-borophene) with such lattice is proposed. The BK-borophene is predicted to be energetically, dynamically, thermodynamically, and mechanically stable. The electronic structure hosts both conventional and high-order van Hove singularities in one band.
Article
Materials Science, Multidisciplinary
Wei Feng, Ping Yang, Bingkai Yuan, Zhenpeng Hu, Xiegang Zhu, Qunqing Hao, Yun Zhang, Qiang Zhang, Bo Wang, Shiyong Tan, Xinchun Lai, Qin Liu, Qiuyun Chen
Summary: By using scanning tunneling microscopy/spectroscopy (STM/STS), we observed the Kondo effect driven by 5 f electrons and subatomic features of single U atoms on graphene/6H-SiC(0001), Cu2N/Cu(100), and Bi(110). The asymmetric-dip spectral feature around the Fermi energy, as an indication of Kondo resonance in STM/STS, was observed in all three systems. The size of the screening cloud for single U atoms on Bi(110) was larger than that on the other two substrates, suggesting more itinerant behavior of the 5 f electrons on Bi(110). Additionally, distinct subatomic features were observed from the dI/dV maps of U atoms on different substrates, which were attributed to the orbital selective hybridizations between U atoms and the substrates.
Article
Chemistry, Multidisciplinary
Qingpeng Cheng, Xueli Yao, Lifeng Ou, Zhenpeng Hu, Lirong Zheng, Guanxing Li, Natalia Morlanes, Jose Luis Cerrillo, Pedro Castano, Xingang Li, Jorge Gascon, Yu Han
Summary: Researchers achieved high incorporation of nickel (Ni) catalysts into the framework of ZSM-5 zeolite using a ligand-protected synthesis method. The incorporated Ni species formed metal-oxygen pairs, promoting the dissociation of C-H bonds in methane. The catalyst exhibited higher activity and stability, inhibiting coke formation through the CHx oxidation pathway.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Lifu Zhang, Lanlan Chen, Wanghui Zhao, Zhenpeng Hu, Jing Chen, Wenhua Zhang, Jinlong Yang
Summary: Selectivity toward ammonia is an important indicator for electrocatalysts in the electrochemical nitrogen reduction reaction (eNRR). This study focuses on improving selectivity through multiple adsorptions and unoccupied d-orbitals of the supported metal atom. The machine learning model successfully predicts the low limiting potential and high selectivity of the catalysts, which was further confirmed by experiments.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Erhao Gao, Wenjing Feng, Qi Jin, Li Han, Yi He
Summary: The influence of K-doping on the reactive oxygen species and elementary reactions of HCHO catalytic oxidation was investigated using density functional theory (DFT). The introduction of K-doping changed the electronic structures of Ce and O, facilitating the adsorption and activation of HCHO and O2 molecules, enhancing lattice oxygen mobility, and reducing the energy barrier for HCHO oxidation. K-doping also promoted the formation of hydroxyl groups, facilitating HCHO adsorption and oxidation.
Article
Chemistry, Physical
Hao Fu, Zhangliang Xu
Summary: In this study, the adsorption mechanisms and detection performance of formaldehyde, ammonia, and sulfur dioxide on undoped and metal-doped ZnO surfaces were investigated using density functional theory. The results showed that formaldehyde and ammonia were physically adsorbed on the undoped ZnO surface, while sulfur dioxide was weakly chemisorbed. The adsorption energy was enhanced when ZnO was doped with metals. These findings provide theoretical guidance for the application of ZnO substrate materials in gas sensitivity research.
Article
Chemistry, Physical
Atsushi Nomura, Tohru Kurosawa, Migaku Oda, Satoshi Demura, Shogo Kuwahara, Sora Kobayashi, Hideaki Sakata
Summary: The study investigates the tunneling spectra of 1T-TiSe2 in the CDW state and the dip structure below the Fermi level, aiming to determine whether this dip is a CDW gap. The answer to this question is crucial for understanding the driving mechanism of CDW.
Article
Chemistry, Physical
A. S. Petrov, D. I. Rogilo, A. I. Vergules, V. G. Mansurov, D. V. Sheglov, A. V. Latyshev
Summary: This study investigates Si mass transport and morphological transformations on the Si(111) surface during (root 3 x root 3)-Sn reconstruction formation and Si homoepitaxy. The research shows that the formation of different Sn phases at different temperatures affects the Si island nucleation and monatomic step shift, which in turn impact the morphology of the Sn/Si(111) interface. Electromigration-induced drift of disordered Sn domains leads to enhanced noncompensated Si mass transport and surface roughening.
Article
Chemistry, Physical
D. V. Gruznev, L. V. Bondarenko, A. Y. Tupchaya, A. A. Yakovlev, A. N. Mihalyuk, A. V. Zotov, A. A. Saranin
Summary: Deposition of thallium (Tl) onto the Au/Si(111)5 x 2 reconstruction followed by annealing results in the formation of a surface structure with 4 x 2 periodicity. The immiscibility of Au and Tl leads to the migration of Tl atoms over the Si chains. Thallium donates electrons to the surface, converting the metallic surface into an insulating state and altering the inter-chain distance within the array of Au atomic wires.
Article
Chemistry, Physical
Simone Giusepponi, Francesco Buonocore, Barbara Ferrucci, Massimo Celino
Summary: Using ab-initio calculations, the interaction between lead adatom and both clean and doped iron (100) surfaces was investigated. It was found that the lead adatom prefers to adsorb in the hollow site, which is more stable compared to the top and bridge sites, and in this position, it is energetically favorable over the iron adatom. Moreover, lead adsorbed in the hollow site of the iron (100) surface doped with chromium was found to create a more stable system compared to nickel-doped surfaces with an iron adatom in the same position. The study also explored inter-layer distances, bonding mechanisms, magnetic behaviors, and charge density differences. The results provide insights into the role of doping in the interaction between lead adatom and iron surface, and have implications for the analysis of corrosion processes caused by liquid lead.
Article
Chemistry, Physical
Shuo Zhang, Jin-Ho Choi
Summary: The recent synthesis of two-dimensional layered WSi2N4 has attracted attention due to its potential applications. This study investigates the catalytic performance of WSi2N4 monolayers with nitrogen vacancies in the hydrogen evolution reaction using first-principles calculations. The results show that the defective WSi2N4 monolayers exhibit remarkably high catalytic activity comparable to platinum catalysts. Electronic structure calculations also reveal the emergence of spin-polarized states due to the introduction of nitrogen vacancies.
Article
Chemistry, Physical
Xiaoyan Yu, Xin Cao, Wei Kang, Shanhua Chen, Ao Jiang, Yuhao Luo, Wenwei Deng
Summary: First-principles calculations were used to investigate the electronic properties of a TiO2 heterostructure modified with Bi2Te3 co-catalyst. The study revealed that the Bi2Te3/TiO2 interface introduced optimal band offsets, effectively suppressing electron-hole recombination and enhancing the utilization efficiency of photo-generated carriers. Additionally, the Bi2Te3 co-catalyst introduced extra catalytic active sites, further boosting the photo-catalytic hydrogen evolution efficiency.
Article
Chemistry, Physical
Filippo Longo, Emanuel Billeter, Selim Kazaz, Alessia Cesarini, Marin Nikolic, Aarati Chacko, Patrik Schmutz, Zbynek Novotny, Andreas Borgschulte
Summary: Alkaline water electrolysis is a simple and efficient method for renewable hydrogen production, utilizing cheap and abundant transition metals. The catalytic properties of Ni materials are enhanced by the formation of oxidized compounds on the surface. The high electrocatalytic activity of Ni (oxy)-hydroxides is directly related to water intercalation in the passivation layer, supporting the hypothesis of a water mediated OH- diffusion mechanism. The self-organization of the surface structure during passivation layer formation enables high electrode performance.
Article
Chemistry, Physical
Mohan Kumar Kuntumalla, Miriam Fischer, Alon Hoffman
Summary: By investigating the bonding, retention, and thermal stability of nitrogen in H-Diamond (100), it was found that nitrogen can partially recover its bonding with carbon atoms after high-temperature annealing, indicating a high thermal stability of nitrogen in diamond.
Article
Chemistry, Physical
Dong Yue, Liangying Wen, Rong Chen, Jianxin Wang, Zhongqing Yang
Summary: The adsorption behavior of Cl2 molecules on the TiC surface and the formation and transfer of reaction products were studied using first-principles ab initio calculations. The results show that the Cl atoms bonded to the surface Ti atoms are more stable, and the TiCl3 intermediate is easier to form than the TiCl2 intermediate.
Article
Chemistry, Physical
Yatao Wang, Peng Zhang, Hongjuan Li, Qiuju Xu, Shujun Liu, Xiaopeng Liu, Xuehua Guo, Yitao Li, Jinzhang Liu, Sen Dong, Zhi Wei Seh, Qianfan Zhang
Summary: In this study, the adsorption performance of two types of metal-organic frameworks (MOFs) for thiophene and benzene was experimentally investigated. The results showed that IZE-1 exhibited high selectivity and superior adsorption capacity for thiophene, especially at low concentrations. First-principles calculations and molecular dynamics simulations provided insights into the mechanism of thiophene adsorption and the high selectivity observed. This research demonstrates the potential of MOFs for thiophene adsorption, particularly at high concentrations.
