Article
Multidisciplinary Sciences
Jin-Oh Kim, Won-Tae Koo, Hanul Kim, Chungseong Park, Taehoon Lee, Calvin Andreas Hutomo, Siyoung Q. Choi, Dong Soo Kim, Il-Doo Kim, Steve Park
Summary: The authors have developed a MiCS method for synthesizing high quality nanocatalyst-embedded C-MOF thin films efficiently, enhancing their performance and expanding their applications.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Marilyn Esclance DMello, Ramesh Chandra Sahoo, Rajamani Raghunathan, H. S. S. Ramakrishna Matte, Priyanka Yadav, Ganapati Shanbhag, Suresh Babu Kalidindi
Summary: This report presents an innovative approach to transform a harmless MOF into a selective hydrogen sensor by using (CrCl2)-Cl-III(pyrazine)(2) MOF with negatively charged pyrazine linkers for the stabilization of Pd (II) via charge transfer interactions. The sensor exhibits rapid response to H-2, with a detection range of 0.25%-1% H-2 concentration.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Liangjie Wang, Xin Chen, Zhengran Yi, Rui Xu, Junjie Dong, Shuai Wang, Yan Zhao, Yunqi Liu
Summary: This study successfully solved the limitations of the traditional structure by preparing Cu-BHT nanotubes, which increased the specific surface area and the proportion of crystal defects. A DPPTT/Cu-BHT-NTs heterostructure OFET-based sensor with excellent sensing performance was constructed, achieving high sensitivity and selectivity for the detection of nitric oxide toxic gases. Furthermore, a fully flexible wearable device based on the heterojunction OFET sensor was prepared, opening up a new avenue for the development of the next generation of wearable intelligent electronics.
Article
Chemistry, Physical
Ai-Qian Wu, Wen-Qing Wang, Hong-Bin Zhan, Lin-An Cao, Xiao-Liang Ye, Jia-Jia Zheng, Pendyala Naresh Kumar, Kashi Chiranjeevulu, Wei-Hua Deng, Guan-E Wang, Ming-Shui Yao, Gang Xu
Summary: In this study, a dual-ligand design strategy was used to modulate the performance of EC-MOFs thin film, achieving precise control over chemiresistive sensitivity and selectivity. Improved selectivity for benzene vs. NH3 was demonstrated, along with discussions on the selectivity of EC-MOF thin film sensors towards other gases vs. NH3 at room temperature.
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
Nanoscience & Nanotechnology
Sangeun Jung, Luke Huelsenbeck, Qikun Hu, Sean Robinson, Gaurav Giri
Summary: The insulating nature of most MOFs can be altered by incorporating a small-molecule organic semiconductor, TCNQ, into the pores of HKUST-1. However, current processes face limitations such as slow crystallization rates and the formation of undesired byproducts. By utilizing the solution shearing technique, HKUST-1 films can be rapidly synthesized over large areas with consistent thickness and no pinholes, leading to a significantly increased electrical conductivity when incorporating TCNQ. The solution-sheared TCNQ@HKUST-1 thin films exhibit a conductivity over 7 orders of magnitude higher than films formed by high-pressure pelletization of TCNQ@HKUST-1, showing potential for large-area electronics applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Chungseong Park, Won-Tae Koo, Sanggyu Chong, Hamin Shin, Yoon Hwa Kim, Hee-Jin Cho, Ji-Soo Jang, Dong-Ha Kim, Jiyoung Lee, Seyeon Park, Jaehyun Ko, Jihan Kim, Il-Doo Kim
Summary: In this study, highly active and stable cMOFs were developed by confining bimetallic nanoparticles in the pores of a 2D cMOF, paving the way for the synthesis of highly active and conductive porous materials via bimetallic and/or multimetallic NP loading.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Miao Liu, Wenlong Jiang, Peng Song, Jun Ji, Qi Wang
Summary: The development of triethylamine (TEA) gas sensors using porous In2O3 microtubes synthesized by hydrothermal treatment and annealing process is studied. The sensor exhibited superior response to TEA, short response time and acceptable recovery time, good reversibility, excellent selectivity, and low detection limits. The porous In2O3 microtubes are potential candidates for TEA detection in practical application.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Review
Chemistry, Inorganic & Nuclear
Ming-Shui Yao, Wen-Hua Li, Gang Xu
Summary: Metal-organic frameworks (MOFs) and the MOF derived materials have broad application prospects in electrically-transduced gas sensors, but face challenges in usability. Recent research focuses on five primary types of electrically-transduced gas sensors, providing insights on basic principles, material design, sensor performance, and future directions.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Chemistry, Multidisciplinary
Young-Moo Jo, Yong Kun Jo, Jong-Heun Lee, Ho Won Jang, In-Sung Hwang, Do Joon Yoo
Summary: In order to improve the performance of gas sensors and enhance the quality of life, the use of metal-organic frameworks (MOFs) as sensing materials has been explored. MOFs are known for their high surface area, porosity, and unique surface chemistry, making them promising for gas-sensor innovations. Various types of MOFs have been developed by studying their compositional and morphological dependences, and incorporating catalysts and light activation. Additionally, MOFs have multiple applications as molecular sieves, absorptive filtering layers, and heterogeneous catalysts due to their separation properties and catalytic activity.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Analytical
Lei Zhu, Jianan Wang, Jianwei Liu, Zhicheng Xu, Muhammad Salman Nasir, Xin Chen, Ze Wang, Shiyi Sun, Qianyue Ma, Jinbo Liu, Jiangtao Feng, Jidong Liang, Wei Yan
Summary: The current gas sensors suffer from insufficient sensitivity and selectivity, limiting their application in real-time monitoring of low concentration gas. This study proposes a versatile in situ enrichment amplification strategy that effectively enhances the detection sensitivity and selectivity of gas sensors for hazardous trace gases.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Multidisciplinary
Hongye Yuan, Guoliang Liu, Zhiwei Qiao, Nanxi Li, Pio John S. Buenconsejo, Shibo Xi, Avishek Karmakar, Mengsha Li, Hong Cai, Stephen John Pennycook, Dan Zhao
Summary: This study presents a simple and surfactant-free method for synthesizing highly stable MOF suspensions composed of exceptionally large NUS-8 nanosheets, demonstrating excellent solution processability. The resulting NUS-8 nanosheets can be used to fabricate materials with controllable thickness and good mechanical properties, and capacitive sensors integrated with NUS-8 films functionalized with different terminal groups exhibit distinguishable sensing behaviors toward acetone.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Shiqi Zhang, Li Li, Yang Lu, Dapeng Liu, Junyao Zhang, Dandan Hao, Xuan Zhang, Lize Xiong, Jia Huang
Summary: In this study, a unique type of ionically conductive metal-organic frameworks (IC-MOFs) was developed, and capacitive humidity sensors based on these IC-MOFs were fabricated for the first time. The sensors showed high sensitivity, wide sensing range, and fast response/recovery time. They also exhibited excellent stability under low and high humidity conditions. This research provides a new approach for the development of humidity sensing materials.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Physical
Himanshu Sekhar Jena, Hannes Rijckaert, Chidharth Krishnaraj, Isabel Van Driessche, Pascal Van der Voort, Anna M. Kaczmarek
Summary: Zr-metal organic frameworks (MOFs) can be used for catalysis and serve as hosts for various upconverting nanoparticles, displaying excellent temperature-dependent luminescence properties. They can also function as stable and reusable catalysts.
CHEMISTRY OF MATERIALS
(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
Nanoscience & Nanotechnology
Jin-Oh Kim, Se Young Kwon, Youngsoo Kim, Han Byul Choi, Jun Chang Yang, Jinwon Oh, Hyeon Seok Lee, Joo Yong Sim, Seunghwa Ryu, Steve Park
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Nanoscience & Nanotechnology
Jin-Oh Kim, Jin Yeong Kim, Jeong-Chan Lee, Steve Park, Hoi Ri Moon, Dong-Pyo Kim
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Thermodynamics
Hyunwoo Noh, Junseon Yoo, Jin-Oh Kim, Hyun Sun Park, Don Koan Hwang, Dong-Pyo Kim, Moo Hwan Kim
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2019)
Article
Nanoscience & Nanotechnology
Jun Chang Yang, Jin-Oh Kim, Jinwon Oh, Se Young Kwon, Joo Yong Sim, Da Won Kim, Han Byul Choi, Steve Park
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Chemistry, Multidisciplinary
Jinwon Oh, Jin-Oh Kim, Yunjoo Kim, Han Byul Choi, Jun Chang Yang, Serin Lee, Mikhail Pyatykh, Jung Kim, Joo Yong Sim, Steve Park
Article
Chemistry, Multidisciplinary
Hanul Kim, Jae-Hong Lim, Kyoungmun Lee, Siyoung Q. Choi
Article
Multidisciplinary Sciences
Jin-Oh Kim, Won-Tae Koo, Hanul Kim, Chungseong Park, Taehoon Lee, Calvin Andreas Hutomo, Siyoung Q. Choi, Dong Soo Kim, Il-Doo Kim, Steve Park
Summary: The authors have developed a MiCS method for synthesizing high quality nanocatalyst-embedded C-MOF thin films efficiently, enhancing their performance and expanding their applications.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Sumin Moon, Hanul Kim, Kyoungmun Lee, Jinwon Park, Yunho Kim, Siyoung Q. Choi
Summary: In this study, heat dissipation composites with high thermal conductivity were fabricated using liquid metal, which overcame the trade-off between thermal conductivity and processability in conventional materials. By exceeding the conventional filler limit, significantly higher thermal conductivity was achieved, and even further improved by introducing h-BN between the liquid metal droplets. These composites are processable at room temperature and suitable for 3D printing, allowing for on-demand processing under ambient conditions and rapid heat dissipation due to increased surface area.
Article
Environmental Sciences
Sujin Park, Jayoung Ku, Sung-Min Lee, Huiseon Hwang, Namseok Lee, Hanul Kim, Ki-Jun Yoon, Yoosik Kim, Siyoung Q. Choi
Summary: Exposure to ambient particulate matter (PM) has adverse health effects, but the molecular mechanism of PM-mediated toxicity is largely unknown. This study reveals that water-soluble inorganics like nitrate and sulfate ions can penetrate the lung surfactant barrier and disrupt gene expression in the lungs. The exposure to nitrate and sulfate ions activates cholesterol biosynthetic metabolism and induces the expression of genes related to tumorigenesis.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Gun-Hee Lee, Ye Rim Lee, Hanul Kim, Do A. Kwon, Hyeonji Kim, Congqi Yang, Siyoung Q. Choi, Seongjun Park, Jae-Woong Jeong, Steve Park
Summary: Meniscus-guided printing technique enables the rapid generation of high-resolution semi-solid liquid metal microgranules on soft substrates, demonstrating the simplicity and reliability for the development of advanced soft electronics.
NATURE COMMUNICATIONS
(2022)