Article
Chemistry, Multidisciplinary
Ji Yong Choi, John Flood, Michael Stodolka, Hoai T. B. Pham, Jihye Park
Summary: By transforming 2D conjugated MOFs into 3D frameworks via postsynthetic pillar-ligand insertion, increased ion accessibility and improved gravimetric capacitance were achieved.
Article
Engineering, Environmental
Huijie Wei, Yu Tian, Qian Chen, Diana Estevez, Peng Xu, Hua-Xin Peng, Faxiang Qin
Summary: In this study, a new strategy was proposed to synthesize lamellar redox-active iron-quinoid MOFs with excellent conductivity and magnetic properties for optimal microwave absorption performance. By modulating the morphology and crystallinity of MOF, adequate impedance matching was achieved through the simultaneous implementation of magnetic and electrical loss, opening up new opportunities to develop high-efficiency, lightweight, and tunable microwave absorbers.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Hoai T. B. Pham, Ji Yong Choi, Shaofeng Huang, Xubo Wang, Adam Claman, Michael Stodolka, Sadegh Yazdi, Sandeep Sharma, Wei Zhang, Jihye Park
Summary: The development of 2D electrically conductive metal-organic frameworks (EC-MOFs) has expanded the applications of MOFs. This study presents a new EC-MOF with a large surface area, high electrical conductivity, and tunable particle size. The framework also utilizes functional groups to host heterometal ions, providing new opportunities for expanding the library of EC-MOFs and exploring electronic applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Hongyu Lu, Jisong Hu, Kaiqi Zhang, Jingxin Zhao, Shenzhen Deng, Yujie Li, Bingang Xu, Huan Pang
Summary: The study successfully fabricated an anti-corrosive Zn-P-based anode with a functional layer, utilizing a microfluidic-assisted 3D printing technique. The functional layer exhibited exceptional anti-corrosive properties and strong adsorption of Zn ions, leading to stable Zn cycling.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jun Li, Shuang Song, Jiashen Meng, Lei Tan, Xiangmei Liu, Yufeng Zheng, Zhaoyang Li, Kelvin Wai Kwok Yeung, Zhenduo Cui, Yanqin Liang, Shengli Zhu, Xingcai Zhang, Shuilin Wu
Summary: A novel ointment containing 2D MOF nanosheets is designed with enhanced photocatalytic activity, showing strong antimicrobial properties against various oral pathogens. This heterostructure exhibits broad-spectrum antimicrobial activity and superior therapeutic effects, including rapid antibacterial activity, alleviation of inflammation, and improved angiogenesis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Chemistry, Multidisciplinary
Qian Zhang, Shu Jiang, Tingting Lv, Yi Peng, Huan Pang
Summary: The use of conductive MOFs (c-MOFs) in zinc-based batteries has been explored due to their superior conductivity compared to other MOFs. This paper discusses the transfer mechanisms and electron transport of c-MOFs, as well as various methods for their preparation. The applications and future prospects of c-MOFs in different types of zinc-based batteries are also discussed.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Long Zhang, Lifan Nie, Shaohui Zhang, Zhaobo Dong, Quan Zhou, Ziang Zhang, Ge-Bo Pan
Summary: This paper investigates high permittivity nanocomposites by modifying 2D conductive MOF Ni-3(HHTP)(2) onto MXene nanosheets for fabricating high permittivity poly(vinylidene fluoride) (PVDF) nanocomposites with low dielectric loss. The results confirm the successful grafting of Ni-3(HHTP)(2) MOF on MXene nanosheets. The MOF-MXene/PVDF nanocomposite exhibits a high permittivity of 530 with a dielectric loss of 0.49 at 4.76 wt% under 1 kHz.
Article
Chemistry, Multidisciplinary
Checkers R. Marshall, Josh P. Dvorak, Liam P. Twight, Lan Chen, Kentaro Kadota, Anastasia B. Andreeva, Alexandra E. Overland, Thomas Ericson, Anthony F. Cozzolino, Carl K. Brozek
Summary: This study reports the controllable synthesis of conductive MOF nanoparticles based on Fe(1,2,3-triazolate)2, and demonstrates their excellent performance in the fabrication of conductive thin films. Analysis of the MOF materials reveals a strong size dependence in optical and electronic behaviors.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Engineering, Environmental
Shun Wu, Huibin Liu, Guangyu Lei, Hongwei He, Jiawen Wu, Guoliang Zhang, Fengbao Zhang, Wenchao Peng, Xiaobin Fan, Yang Li
Summary: The requirement of sustainable energy is crucial for easing the energy shortage crisis. The development of efficient, stable, and noble-metal-free ORR electrocatalysts is a significant challenge. In this study, an atomically dispersed Fe and N co-doped hierarchically porous carbon catalyst with excellent ORR performance was reported. The catalyst exhibited a lower half-wave potential and higher current density compared to commercial Pt/C catalyst.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Ji Yong Choi, Minyan Wang, Brianna Check, Michael Stodolka, Kyle Tayman, Sandeep Sharma, Jihye Park
Summary: This article reports the synthesis of Cu-3(HAB)(x)(TATHB)(2-x) with improved crystallinity and higher electrical conductivity compared to previous studies. The ligand compositions in the framework are precisely controlled by precursor ratios. The electrical conductivity can be tuned by increasing the nitrogen content in the crystal lattice. Computational calculations support the idea that the solid solution facilitates band structure tuning. These findings shed light on the structure-property relationship and open new possibilities for synthesizing electrically conductive metal-organic frameworks (MOFs) for optoelectronic device applications.
Article
Chemistry, Multidisciplinary
Lujiao Mao, Dandan Chen, Yuanyuan Guo, Cheng Han, Xuemei Zhou, Zhi Yang, Shaoming Huang, Jinjie Qian
Summary: FeNi-based Prussian blue analogues were successfully prepared for oxygen evolution reaction, showing superior OER activity and stability with FeNi-PBA-plane/edge morphologies.
Article
Multidisciplinary Sciences
Robert Vasquez, Jacob Waelder, Yifan Liu, Hannah Bartels, Stephen Maldonado
Summary: A detailed framework for modeling and interpreting the data from cyclic voltammetric measurement of adsorbed redox monolayers on semiconductor electrodes has been developed. This work not only fills a long-standing knowledge gap in electrochemistry but also aids practitioners advancing energy conversion/storage strategies based on redox adsorbates on semiconductor electrodes.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Green & Sustainable Science & Technology
Muhammad Zahir Iqbal, Misbah Shaheen, Muhammad Waqas Khan, Salma Siddique, Sidra Farid, Sikandar Aftab, Saikh Mohammad Wabaidur
Summary: Two-dimensional (2D) conductive metal-organic frameworks (c-MOFs) have been developed as electrode materials for energy storage devices due to their unique properties. This study synthesized a 2D conductive copper-based MOF [Cu3(HHTP)2] for hybrid battery-supercapacitor applications. The framework showed low resistance, fast diffusion, and electron transfer. The resulting hybrid device exhibited excellent cyclic stability and columbic efficiency.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Materials Science, Multidisciplinary
Yan Ma, Hui-Xue Fang, Rong Chen, Qian Chen, Sheng-Jun Liu, Kui Zhang, Hai-Jin Li
Summary: This study successfully grown two-dimensional metal organic framework (MOF) nanosheets on top of another two-dimensional MOF nanosheets using a homometallic nodal strategy, and prepared ultrathin nanosheets with tightly bound 2D/2D heterojunctions. The tight coupling of the heterojunction effectively shortens the electron transfer distance, promotes the separation of interfacial charges, and improves the photocatalytic activity.
Review
Chemistry, Multidisciplinary
Yuhao Zhu, Shuyi Jiang, Xuechun Jing, Xiao Feng
Summary: Two-dimensional covalent organic frameworks (2D COFs) offer unique charge carrier transport pathways and remarkable electronic properties. Precise alignment of electron-rich and/or electron-deficient aromatic arenes enables high conductivity and mobility.
TRENDS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ji Yong Choi, John Flood, Michael Stodolka, Hoai T. B. Pham, Jihye Park
Summary: By transforming 2D conjugated MOFs into 3D frameworks via postsynthetic pillar-ligand insertion, increased ion accessibility and improved gravimetric capacitance were achieved.
Article
Chemistry, Multidisciplinary
Hoai T. B. Pham, Ji Yong Choi, Shaofeng Huang, Xubo Wang, Adam Claman, Michael Stodolka, Sadegh Yazdi, Sandeep Sharma, Wei Zhang, Jihye Park
Summary: The development of 2D electrically conductive metal-organic frameworks (EC-MOFs) has expanded the applications of MOFs. This study presents a new EC-MOF with a large surface area, high electrical conductivity, and tunable particle size. The framework also utilizes functional groups to host heterometal ions, providing new opportunities for expanding the library of EC-MOFs and exploring electronic applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Ji Yong Choi, Michael Stodolka, Nakyoung Kim, Hoai T. B. Pham, Brianna Check, Jihye Park
Summary: In this study, a Zn-based dual-conductive metal-organic framework (MOF), Zn-HHTP-H2O, was developed, which can simultaneously conduct electrons and protons. The Zn node with axial H2O ligands induces proton transport, while the in-plane HHTP coordination enables electron transport. The weak binding of the axial H2O ligand allows for functionalization through post-synthetic ligand substitution. Zn-HHTP-H2O exhibits electrical and proton conductivities of 4.5×10(-2) S cm (-1) and 1.6×10(-5) S cm (-1), respectively, at 343 K and 95% RH. Post-synthetic urea treatment increases the proton conductivity of Zn-HHTP-H2O by 10 times, while the electrical conductivity remains the same. This system provides a chemically intriguing platform for the development of dual-conducting materials.
Article
Chemistry, Multidisciplinary
Ji Yong Choi, Minyan Wang, Brianna Check, Michael Stodolka, Kyle Tayman, Sandeep Sharma, Jihye Park
Summary: This article reports the synthesis of Cu-3(HAB)(x)(TATHB)(2-x) with improved crystallinity and higher electrical conductivity compared to previous studies. The ligand compositions in the framework are precisely controlled by precursor ratios. The electrical conductivity can be tuned by increasing the nitrogen content in the crystal lattice. Computational calculations support the idea that the solid solution facilitates band structure tuning. These findings shed light on the structure-property relationship and open new possibilities for synthesizing electrically conductive metal-organic frameworks (MOFs) for optoelectronic device applications.
Review
Chemistry, Multidisciplinary
Chenwei Lu, Benjamin Clayville, Ji Yong Choi, Jihye Park
Summary: This article outlines the key techniques and methods for tuning the electronic structure of two-dimensional conductive metal-organic frameworks (2D c-MOFs), aiming to achieve fine-tunability and establish foundational knowledge for their future electronic applications.
Article
Chemistry, Multidisciplinary
Bumjin Park, Won-Woo Park, Ji Yong Choi, Woong Choi, Young Mo Sung, Soohwan Sul, Oh-Hoon Kwon, Hyunjoon Song
Summary: In this study, the effect of morphology and surface nature of Pt cocatalysts on photocatalytic hydrogen evolution activity in Pt-tipped CdSe nanorods was investigated. The rough tips exhibit the highest activity, followed by the round and cubic tips. The cubic tips exhibit lower charge-separated states feasible for reacting with water and water reduction rates due to their defectless surface facets.
