Article
Chemistry, Analytical
Maciej Krawczyk, Ryszard Korbutowicz, Rafal Szukiewicz, Patrycja Suchorska-Wozniak, Maciej Kuchowicz, Helena Teterycz
Summary: In this study, a beta-Ga2O3 epitaxial layer with a highly developed surface was synthesized on gold electrodes on a Al2O3 substrate, and impregnated with gold nanoparticles to achieve p-type doping. The introduction of the Au nanoparticles led to an increase in conductivity and a reversal of the electric response to air containing DMS.
Article
Chemistry, Analytical
Seyeon Park, Peresi Majura Bulemo, Won-Tae Koo, Jaehyun Ko, Il-Doo Kim
Summary: By utilizing solid-solution doping and catalytic metal nanoparticles, superior acetylene sensing capabilities were achieved through porous metal oxide nanofibers. The high porosity of the metal oxide nanofibers, prepared using electrospinning and sacrificial templating, was essential for high gas permeability and active sites. Ga-doped ZnO porous NFs functionalized with Pt catalysts demonstrated the highest C2H2 sensing responses with exceptional selectivity and stability against interfering gases.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
B. Bhagat, Santosh K. Gupta, D. Mandal, Abhishek A. Gor, R. Bandyopadhyay, K. Mukherjee
Summary: This study explores the use of nickel ferrite nanoparticles as sensors for detecting organic vapors. The developed NFO sensor shows excellent performance, with good selectivity towards ethanol, low response time, and excellent repeatability.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Altaf Hussain, Muhammad Nazim Lakhan, Irfan Ali Soomro, Mukhtiar Ahmed, Abdul Hanan, Asif Ali Maitlo, Irum Zehra, Jingyuan Liu, Jun Wang
Summary: To protect human health and the environment, it is important to develop sensitive sensors for detecting volatile organic compounds (VOCs) with high selectivity and fast response. In this study, researchers developed an ethanol sensor based on 2D WSe2 nanosheets and WSe2/rGO hybrid. The hybrid sensor showed higher response to ethanol compared to the WSe2 nanosheets alone, and exhibited selectivity towards ethanol over other interfering gases. The findings suggest that the WSe2/rGO hybrid has potential for designing ethanol gas sensors and can be applied in chemical and biochemical sensing.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Nanoscience & Nanotechnology
Oleg Lupan, David Santos-Carballal, Nicolae Magariu, Abhishek Kumar Mishra, Nicolai Ababii, Helge Krueger, Niklas Wolff, Alexander Vahl, Mani Teja Bodduluri, Niklas Kohlmann, Lorenz Kienle, Rainer Adelung, Nora H. de Leeuw, Sandra Hansen
Summary: This research demonstrates the sensitivity of columnar Al2O3/ZnO heterolayer-based sensors to common VOCs and achieves selectivity tuning by changing the thickness of the exposed Al2O3 layer. The findings are highly important for the development of 2-propanol sensors and understanding the effect of heterojunction and top nanolayer thickness on gas response.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
Gwang Su Kim, Yumin Park, Joonchul Shin, Young Geun Song, Chong-Yun Kang
Summary: Gas phase chemical analysis for breath gas monitoring has great potential. Array-type sensors with high sensitivity and selectivity for target gases, combined with micro-heater and ceramic chip, show excellent detection performance. Sensor array decorated with metal catalysts can detect biomarkers CH3COCH3, NO2, and H2S for real-time monitoring.
Article
Materials Science, Ceramics
Jong-Chan Lim, Changhyun Jin, Myung Sik Choi, Min Young Kim, Sang-il Kim, Soon-Mok Choi, Seung-Hyub Baek, Kyu Hyoung Lee, Hyun-Sik Kim
Summary: The research found that the response of Co-doped three-dimensional flower-like tungsten oxide nanoplates to ethanol gas sensing changes gradually according to the process temperature and Co doping concentration, influenced by a variety of complex factors. Therefore, in the field of ethanol gas sensing, analyzing various factors and predicting the results may be more important.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Environmental
Jesse Nii Okai Amu-Darko, Shahid Hussain, Qiang Gong, Xiangzhao Zhang, Ziwei Xu, Mingsong Wang, Guiwu Liu, Guanjun Qiao
Summary: In this study, In2O3/PANI composites were synthesized using the hydrothermal technique to explore their sensing capabilities for NO2 gas. The gas sensing properties, such as response/recovery time, optimal temperature, and recyclability, were investigated by analyzing the morphology, purity, and crystal structures of the samples. The In2O3/PANI-1 sensors exhibited high responses, quick response and recovery times, and a low detection limit to NO2 gas at a working temperature of 250 degrees C. The fundamental detecting mechanism for NO2 gas and the electrical characteristics of the In2O3/PANI composites were also discussed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Analytical
Joao Flavio da Silveira Petruci, Diandra Nunes Barreto, Mariana A. Dias, Erika P. Felix, Arnaldo A. Cardoso
Summary: Ground-level ozone is increasing worldwide due to anthropogenic emissions and the use of ozone generators. This poses risks to public health, indoor air quality, and materials. Monitoring and control policies are essential, but determining ozone gas remains a challenge. Advances in measurement techniques have been made, but further exploration is needed for device construction and components active towards ozone.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Manisha Dagar, Sangeeta Yadav, V. V. R. Sai, Jitendra Satija, Himanshu Bhatia
Summary: Illicit drug use is a global concern due to its impact on individuals' perceptions and emotions, leading to safety breaches in critical workplaces. The need for point-of-care drugtesting devices is crucial for sectors like law enforcement agencies and workplaces. Recent advancements in electrochemical and optical nanosensors have shown promise in detecting common illicit drugs and enhancing real-time monitoring capabilities.
Article
Chemistry, Multidisciplinary
Alexander S. Ilin, Mikhail N. Martyshov, Vadim B. Platonov, Alexander V. Pavlikov, Alexandra V. Koroleva, Ekaterina V. Kytina, Elizaveta A. Konstantinova, Pavel A. Forsh, Pavel K. Kashkarov
Summary: Cobalt oxide-based nanofibers with zinc (Co3O4/Zn) were synthesized using electrospinning to solve the issue of low conductance. The materials were extensively characterized using various techniques including X-ray diffraction, electron microscopy, and spectroscopy. The addition of zinc significantly increased the conductivity of the nanofibers, with a 15% zinc concentration resulting in a conductivity increase of over 4 orders of magnitude compared to zinc-free cobalt oxide nanofibers. The enhancement in conductivity was attributed to the presence of ZnxCo3-xO4 and ZnO structures.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Analytical
Jiwon Oh, Sang Hun Kim, Myeong-Jin Lee, Heesu Hwang, Wonseok Ku, Jongtae Lim, In-Sung Hwang, Jong-Heun Lee, Jin-Ha Hwang
Summary: Machine learning (ML) methodologies were used to detect and discriminate indoor volatile organic compounds (VOCs). The study found that humidity variation has a more significant impact on gas sensing compared to temperature fluctuation. Among the three supervised algorithms, the neural network algorithm based on the entire gas sensing data performed the best. Additionally, a 2-sensor mode can replace the need for 5 sensors in ML-based applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Zhengkun Wu, Yanrong Wang, Qiyuan Wu, Xu Cheng, Qiao Wang, Yifan Yang, Beixi An, Peizhe Wang, Erqing Xie
Summary: In this paper, a high-performance gas sensor for NO2 was developed by synthesizing SnO2 grains with different sizes and oxygen vacancies. The sensor prepared from SnO2 grains grown at 180 degrees C showed the optimal response to 1 ppm NO2 at a low temperature of 80 degrees C, with a response of 4358.8, a rapid recovery time of 7 seconds, and a detection limit down to 9 ppb. Through experimental and density functional theory studies, the dominance of surface oxygen vacancies in dictating the gas response was demonstrated. These findings provide a clear framework for the preparation of high-performance gas sensors.
APPLIED SURFACE SCIENCE
(2023)
Review
Materials Science, Ceramics
Jing Wang, Huchi Shen, Yi Xia, Sridhar Komarneni
Summary: This review discusses recent advancements in the field of light-activated gas sensors based on metal oxide nanostructures, focusing on improving gas sensing performance and power consumption. The effects of light activation on the behavior of metal oxide nanostructures as gas sensors are summarized, along with possible strategies for enhancing their performance. Additionally, recent developments in light sources and device structures towards low power gas sensor systems are also discussed.
CERAMICS INTERNATIONAL
(2021)
Review
Chemistry, Inorganic & Nuclear
Gen Wang, Shengjiong Yang, Li Cao, Pengkang Jin, Xiangkang Zeng, Xiwang Zhang, Jing Wei
Summary: Chemiresistive gas sensors based on semiconducting metal oxides (SMOs) are widely used in various fields, but developing sensors with high selectivity and low working temperature remains a challenge. Metal-organic frameworks (MOFs) derived SMOs have shown promise due to their mesoporous structure and unique morphology. This review systematically summarizes recent developments in this area and discusses strategies for enhancing sensing performance, such as constructing novel nanostructures and combining with highly-conductive materials.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Nanoscience & Nanotechnology
Xiaopeng Liu, Holly Andersen, Yinan Lu, Bo Wen, Ivan P. Parkin, Michael De Volder, Buddha Deka Boruah
Summary: The development of devices with dual solar energy-harvesting and storage functionalities has gained traction for off-grid power supply. In this study, a porous carbon coated on a zinc oxide-cadmium sulfide heterostructure was proposed as an energy efficient photocathode for photo-accelerated zinc ion capacitors (Photo-ZICs). The Photo-ZICs demonstrated efficient charge storage performance under illumination compared to dark conditions, along with stable charge storage capacities over long-term cycling.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Holly Andersen, Yinan Lu, Joanna Borowiec, Ivan P. Parkin, Michael De Volder, Buddha Deka Boruah
Summary: The development of photo-enhanced lithium-ion batteries, where exposing the electrodes to light results in higher capacities, higher rate performance or self-charging, has recently gained substantial traction. The challenge in these devices lies in the realisation of photo-electrodes with good optical and electrochemical properties. Herein, we propose copper-hexahydroxybenzene as the active photo-electrode material which both harvests light and stores energy. This material was mixed with reduced graphene oxide as a conductive additive and charge transfer medium to create photo-active electrodes. Under illumination, these electrodes show improved charge storage kinetics resulting in the photo-accelerated charging and discharging performance (i.e. specific capacities improvement from 107 mA h g(-1) to 126 mA h g(-1) at 200 mA g(-1) and 79 mA h g(-1) to 97 mA h g(-1) at 2000 mA g(-1) under 1 sun illumination as compared to dark).
Article
Chemistry, Multidisciplinary
Jintao Chen, Guanxu Chen, Siyu Zhao, Junrun Feng, Ryan Wang, Ivan P. Parkin, Guanjie He
Summary: This study employs a structural engineering strategy to introduce anionic defects within carbon structures, aiming to enhance the kinetics of potassium-ion batteries (PIBs). The carbon framework provides a strong and stable structure, and further phosphorus doping modification improves the rate capability. The optimized electrode exhibits high capacity and enhanced rate performance, providing rational design guidance for carbon-based anodes in PIBs.
Article
Materials Science, Multidisciplinary
Gemma Davison, Tabitha Jones, Jia Liu, Juhwan Kim, Yidan Yin, Doeun Kim, Weng-I Katherine Chio, Ivan P. Parkin, Hyeon-Ho Jeong, Tung-Chun Lee
Summary: Hybrid plasmonic nanojunctions with optimal surface-enhanced Raman scattering (SERS) activity were designed and fabricated via a computer-aided approach. These nanojunctions showed significantly boosted SERS signals through the incorporation of a strong plasmonic metal and spectral alignment. A proof-of-concept application demonstrated SERS detection of nucleobases with a detection limit down to sub-nanomolar concentration and an enhancement factor (EF) up to 10^9-10^10, which is the minimum required EF for single-molecule detection. Furthermore, machine-learning-driven multiplexing of nucleobases was demonstrated, showing promise in point-of-care diagnosis of diseases related to oxidative damage of DNA and wastewater-based epidemiology.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Julie Jalila Kalmoni, Frances L. Heale, Christopher S. Blackman, Ivan P. Parkin, Claire J. Carmalt
Summary: Robust fluorine-free superhydrophobic films were successfully prepared using a mixture of fatty acids, SiO2 nanoparticles, and polydimethylsiloxane. The films exhibited a highly textured morphology, with a water contact angle of 162 +/- 2 degrees and a sliding angle of <5 degrees. The superhydrophobicity of the films remained intact even after exposure to UV light, heat treatment, multiple tape peeling cycles, and various organic solvents.
Article
Chemistry, Physical
Sanjayan Sathasivam, Sapna D. Ponja, Seonghyeok Park, Clara Sanchez-Perez, Christopher Blackman, Ivan P. Parkin, Claire J. Carmalt
Summary: Alternatives to tin-doped indium oxide transparent electrodes are required. Tungsten-doped SnO2 thin films with low resistivities and high electron mobilities were obtained using chemical vapor deposition. The tungsten dopant had minimal distortion to the SnO2 unit cell and resulted in crystallographic preferential orientation in the [200] direction. X-ray photoelectron spectroscopy analysis indicated that tungsten was present in the +5 state, minimizing ionized impurity scattering and achieving high electron mobilities. The tungsten-doped films had an optical band gap of 3.7 eV, making them transparent to visible light.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Roxy Lee, Raul Quesada-Cabrera, Joe Willis, Asif Iqbal, Ivan P. P. Parkin, David O. O. Scanlon, Robert G. G. Palgrave
Summary: This study presents a method for quantifying crystallographic phases on a surface by fitting experimental photoemission spectra with density functional theory (DFT) models. The method was applied to map the anatase to rutile ratio across the surface of mixed-phase TiO2 thin films, and the results were correlated with photocatalytic activity measurements. The study demonstrates the potential of this method for large-scale functional and surface composition mapping in heterogeneous systems, and the unique insights provided by DFT-simulated spectra on the electronic structure origins of complex valence band spectral features.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Multidisciplinary Sciences
Sultan Ben-Jaber, Daniel Glass, Thomas Brick, Stefan A. Maier, Ivan P. Parkin, Emiliano Cortes, William J. Peveler, Raul Quesada-Cabrera
Summary: Photo-induced enhanced Raman spectroscopy (PIERS) is a highly sensitive surface-enhanced Raman spectroscopy (SERS) technique for detecting ultra-low concentrations of organic molecules. This study compares PIERS with Vo-induced SERS approaches to further confirm the role of Vo in PIERS and presents a proposed mechanism and discussion on using PIERS as a probe to explore photocatalytic materials.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Clara Sanchez-Perez, Sriluxmi Srimurugananthan, Carlos Sotelo-Vazquez, Sanjayan Sathasivam, Mingyue Wang, Javier Marugan, Ivan P. P. Parkin, Claire J. J. Carmalt
Summary: ZnO thin film coatings were synthesized by aerosol-assisted chemical vapor deposition (AACVD) with different Zn : O ratios, and the synthetic parameters for self-texturing were analyzed. The effects of Zn environment and temperature on the morphology of the coatings were evaluated. A non-pyrophoric molecular precursor was investigated and found to produce 002-oriented, compact, transparent ZnO thin coatings with minimal carbon contamination at 300°C and fast growth rates (>40 nm min(-1)). This new deposition approach provides a rapid method to achieve optoelectronic coatings at ambient pressure.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Physical
Wenhao Zhao, Liping Wen, Ivan P. Parkin, Xiujian Zhao, Baoshun Liu
Summary: In this study, the Fermi-level (E-F) shift of the UV-illuminated Ag/TiO2 system under gaseous conditions was evaluated using in situ photoconductance and theoretical analysis. The role of Ag nanoparticles in storing and separating electrons was discussed, and it was found that the E-F of Ag/TiO2 is located deeper in the gap and is less affected by temperature compared to undecorated TiO2. The analysis showed that approximately 46 electrons can be stored in 10 nm Ag nanoparticles under the experimental conditions, and the blue-shift of localized surface plasmon resonance (LSPR) in Ag nanoparticles is not related to electron storage.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Oliver S. J. Hagger, M. Emre Sener, Imran Khan, Francis Lockwood Estrin, Stefanos Agrotis, Albertus D. D. Handoko, Ivan P. P. Parkin, Daren J. J. Caruana
Summary: A helium gas atmospheric pressure plasma jet (APPJ) was used to prepare a silver-based SERS substrate, which showed comparable Raman enhancement with commercially available substrates and a physical deposition method. The deposition of zero valent silver was achieved by using an aqueous solution of rudimentary silver salt without any post processing. An array of 16 x 16 silver islands were printed on borosilicate glass using APPJ, with each island taking 5 seconds to print. The SERS response was evaluated using model analytes and the detection limit was calculated to be 1 x 10(-6) M. Additionally, the analyte on the surface could be easily removed by treating with helium APPJ doped with oxygen and then hydrogen, allowing for replicate measurements with the same SERS substrate.
MATERIALS ADVANCES
(2023)
Review
Chemistry, Multidisciplinary
Xuan Gao, Haoyu Wu, Chang Su, Chuanming Lu, Yuhang Dai, Siyu Zhao, Xueying Hu, Fangjia Zhao, Wei Zhang, Ivan P. Parkin, Claire J. Carmalt, Guanjie He
Summary: Hybrid capacitors are emerging for their ability to store large amounts of energy and maintain stability even in harsh environments or extreme temperatures. Novel aqueous multivalent cation storage systems have been developed to address safety concerns. Carbon-based nanomaterials are attractive for their outstanding properties and have been extensively studied in multivalent-ion hybrid capacitors (MIHCs). This paper reviews recent advances in MIHCs and carbon-based materials, providing insights and commercialization reference for laboratory research.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Gemma Davison, Yidan Yin, Tabitha Jones, Ivan P. Parkin, William J. Peveler, Tung-Chun Lee
Summary: Strong and stable surface-enhanced Raman scattering (SERS) spectroscopy was achieved in aqueous solution using colloidal hybrid nanoparticles composed of gold nanotriangles (Au NTs) with a tin dioxide (SnO2) nanoscale coating. The observed strong SERS signals are a result of electromagnetic enhancement from the anisotropic Au NTs and chemical enhancement from photo-induced charge transfer between SnO2 and Au NTs. The presence of intrinsic oxygen vacancies in SnO2 and the nanoscale mixing of the two components contribute to the high stability of SERS signals.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Zijuan Du, Ang Qiao, Hemin Zhou, Zhencai Li, Wessel M. W. Winters, Jiexin Zhu, Guanjie He, Ivan P. Parkin, Haizheng Tao, Yuanzheng Yue
Summary: This study prepared high-density amorphous phases of bimetallic zeolitic imidazolate frameworks and measured their heat capacity to determine the glass transition temperature. The results showed a nonlinear effect of the molar ratio R on the glass transition temperature, indicating an increase in configurational freedom as R increases. The study also found a close correlation between configurational freedom and network connectivity.
CHEMICAL COMMUNICATIONS
(2023)
Proceedings Paper
Engineering, Civil
Yifeng Zhang, Haobo Dong, Tianlei Wang, Guanjie He, Ivan P. Parkin, Frederic Cegla
Summary: This study demonstrates the sensitivity of guided ultrasonic waves to dendrite formation in batteries. By measuring the cyclical variations of wave velocity and attenuation, dendrite growth can be quantitatively tracked.
EUROPEAN WORKSHOP ON STRUCTURAL HEALTH MONITORING (EWSHM 2022), VOL 3
(2023)
Article
Chemistry, Physical
Mei Gui Vanessa Wee, Amutha Chinnappan, Runxin Shang, Poh Seng Lee, Seeram Ramakrishna
Summary: Cooling processes, from residences to industries, require a lot of energy and are essential. This study introduces MIL-101(Cr), a new desiccant, to heat exchangers for more efficient cooling. By improving the synthesis method and using a special binder, the MIL-101(Cr)-coated heat exchanger shows improved water uptake capacity and lower regeneration temperature.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ao Zhen, Guanyu Zhang, Ao Wang, Feng Luo, Jiehua Li, Hong Tan, Zhen Li
Summary: In this study, a solvent-free microemulsion method was used to synthesize waterborne polyurethane (WPU) material with high retention of mechanical properties and satisfactory water absorption rates. The material showed excellent biocompatibility and has broad application potential in the field of biomedicine.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Wensong Ge, Rui Wang, Xiaoyang Zhu, Houchao Zhang, Luanfa Sun, Fei Wang, Hongke Li, Zhenghao Li, Xinyi Du, Huangyu Chen, Fan Zhang, Huifa Shi, Huiqiang Hu, Yongming Xi, Jiankang He, Liang Hu, Hongbo Lan
Summary: This paper reviews the research on the surface tension of eutectic gallium-indium alloys (EGaIn) in the field of stretchable electronics. It covers the principles of oxide layer formation, factors influencing surface tension, and methods for surface modification of liquid metals. The paper also discusses the applications of EGaIn surface modification in different fields and highlights the challenges still faced and the future outlook.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiang Song, Lianghao Jia, Zhengen Wei, Tao Xiang, Shaobing Zhou
Summary: This paper provides an overview of the application, preparation, and role of biomimetic structures in solar evaporators with improved evaporation rate and lifetime.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Wei Yuan, Qian Deng, Dong Pan, Xiang An, Canyang Zhao, Wenjun Su, Zhengmin He, Qiang Sun, Ran Ang
Summary: Optimizing the performance of n-type PbTe thermoelectric materials is crucial for practical applications. Dynamic doping has emerged as an effective method to improve the performance of n-type PbTe by optimizing the carrier concentration. This study demonstrates the significance of Mn alloying in enhancing the performance of Ag-doped n-type PbTe by creating a hierarchical structure to suppress thermal transport and improving the Seebeck coefficient.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiaoyan Wang, Meiqi Geng, Shengjun Sun, Qian Xiang, Shiyuan Dong, Kai Dong, Yongchao Yao, Yan Wang, Yingchun Yang, Yongsong Luo, Dongdong Zheng, Qian Liu, Jianming Hu, Qian Wu, Xuping Sun, Bo Tang
Summary: This review provides a comprehensive analysis of the progress and challenges in the field of bifunctional electrocatalysts and efficient electrolyzers for seawater splitting. It summarizes recent advancements and proposes future perspectives for highly efficient bifunctional electrocatalysts and electrolyzers.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Jason K. Phong, Christopher B. Cooper, Lukas Michalek, Yangju Lin, Yuya Nishio, Yuran Shi, Huaxin Gong, Julian A. Vigil, Jan Ilavsky, Ivan Kuzmenko, Zhenan Bao
Summary: Dynamic block copolymers (DBCPs) combine the phase separation of traditional block copolymers with the supramolecular self-assembly of periodic dynamic polymers, resulting in the spontaneous self-assembly of high aspect ratio nanofibers with well-ordered PEG and PDMS domains. DBCPs with a periodic block sequence exhibit superior properties compared to those with a random sequence, including delayed onset of terminal flow and higher ionic conductivity values.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Hong Kyu Lee, Yasaswini Oruganti, Jonghyeon Lee, Seunghee Han, Jihan Kim, Dohyun Moon, Min Kim, Dae-Woon Lim, Hoi Ri Moon
Summary: This study reports the moisture-triggered proton-conductivity switching behavior in Zn5FDC MOFs induced by the presence and absence of coordinating solvents, which illustrates the significant role of coordinating solvents in conductivity variation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Bommaramoni Yadagiri, Sanjay Sandhu, Ashok Kumar Kaliamurthy, Francis Kwaku Asiam, Jongdeok Park, Appiagyei Ewusi Mensah, Jae-Joon Lee
Summary: The molecular engineering of the interface modulator between the perovskite and hole transporting material is crucial for achieving satisfactory performance and stability of perovskite solar cells. In this study, cruciform-shaped dual functional organic materials were employed as surface passivation and hole transporting interfacial layers in perovskite solar cells. The use of these materials significantly improved the power conversion efficiency of the solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Joaquin Martinez-Ortigosa, Reisel Millan, Jorge Simancas, Manuel Hernandez-Rodriguez, J. Alejandro Vidal-Moya, Jose L. Jorda, Charlotte Martineau-Corcos, Vincent Sarou-Kanian, Mercedes Boronat, Teresa Blasco, Fernando Rey
Summary: This study investigates the synthesis of all-silica RTH zeolites using triisopropyl(methyl)phosphonium as the organic SDA. The results show the formation of two distinct crystalline phases under different synthesis conditions, with fluoride bonding to different silicon sites. It demonstrates the possibility of controlling the placement of fluoride in RTH zeolites through synthesis conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Luyao Zheng, Cong Liu, Wenbiao Zhang, Boxu Gao, Tianlan Yan, Yahong Zhang, Xiaoming Cao, Qingsheng Gao, Yi Tang
Summary: This study successfully improves the efficiency and stability of water splitting by constructing a heterostructured electrocatalyst. The catalyst shows extraordinary performance and could offer an effective approach for the sustainable production of hydrogen.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Carlos A. Campos-Roldan, Raphael Chattot, Frederic Pailloux, Andrea Zitolo, Jacques Roziere, Deborah J. Jones, Sara Cavaliere
Summary: This study systematically evaluated the hydrogen evolution/oxidation reactions on a series of Pt-rare earth nanoalloys in alkaline media, and identified the effect of the lanthanide contraction. The experimental results revealed that the chemical nature of the rare earth modulates the adsorption and mobility of oxygenated-species, enhancing the kinetics of the reactions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Sara Frank, Mads Folkjaer, Mads L. N. Nielsen, Melissa J. Marks, Henrik S. Jeppesen, Marcel Ceccato, Simon J. L. Billinge, Jacopo Catalano, Nina Lock
Summary: This study investigates the thermal decomposition of ZIF-67 and its correlation with structural evolution and electrocatalytic performance. The researchers used in situ X-ray absorption spectroscopy and total scattering techniques to analyze the process. They found that disorder emerges at lower temperatures and that extending the pyrolysis process can result in materials with superior electrochemical properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Zi-Yang Zhang, Hao Tian, Han Jiao, Xin Wang, Lei Bian, Yuan Liu, Nithima Khaorapapong, Yusuke Yamauchi, Zhong-Li Wang
Summary: By constructing Cu-0-Cu+-NH2 composite interfaces with the assistance of SiO2, the electrochemical CO2 reduction reaction (CO2RR) achieves high Faraday efficiency and current density for C2+ production, improving the productivity of carbon cycle.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ting Wang, Ruijuan Zhang, Pengda Zhai, Mingjie Li, Xinying Liu, Chaoxu Li
Summary: This study successfully exfoliated COFs using a simple electrochemical method, which resulted in improved photocatalytic performance for COFs and enriched the fabrication approach of COF exfoliation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
