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2022 Advances in science and engineering Technology International Conferences, ASET 2022

作者： Alashkar, Adnan Ibrahim, Taleb Khamis, Mustafa Hai Alami, Abdul American University of Sharjah Materials Science and Engineering PhD Program Sharjah United Arab Emirates American University of Sharjah Department of Chemical Engineering Sharjah United Arab Emirates American University of Sharjah Department of Biology Chemistry and Enviromental Sciences Sharjah United Arab Emirates University of Sharjah Department of Sustainable and Renewable Energy Engineering Sharjah United Arab Emirates

ISBN: (纸本)9781665418010

In this paper, the carrier recombination, and dynamics of Perovskite Solar Cells (PSC) are investigated. Ionic Liquids (IL) are presented in the bulk perovskite in an attempt to improve the dynamics of the charge transport layer. Time Resolved Photoluminescence (TRPL) is utilized to study the fast electronic decay of the perovskite samples and the influence of the IL on the stability of the perovskite film. The ILs are added to the perovskite in three ratios (5%, 10%, and 20%). The results showed that the presence of the ILs increases the electron lifetime inside the perovskite layer. In addition, 10% IL/perovskite displayed the highest increase of 72% in the lifetime. Where, for higher ratios, the lifetime started deteriorating. © 2022 IEEE.

关键词： Ionic liquids

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P-210: Photolithography Patterning of Organic Light-Emitting Diodes Using Solvent Resistant Electron Transport materials

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SID Symposium Digest of Technical Papers 2024年第1期55卷 2181-2183页

作者： Hyunjin Yu Eun Yeong So Kyunghyun Eun Byung Jun Jung Myungwoong Kim Jin-Kyun Lee Jun Yeob Lee School of Chemical Engineering Sungkyunkwan University 2066 Seobu-ro Jangan-gu Suwon-si Gyeonggi-do Republic of Korea 16419 Department of Materials Science and Engineering University of Seoul Seoul Republic of Korea 02504 Department of Chemistry and Chemical Engineering Inha University Incheon Republic of Korea 22212 Program in Environment and Polymer Engineering Inha University 100 Inha-ro Michuhol-gu Incheon Republic of Korea 22212

In this paper, we develop a novel approach to achieve ultra-high resolution in organic light-emitting diodes (OLEDs) through a photolithography patterning process. It is important to apply a solvent resistant electron transport layer (ETL) in the photolithography pattering of OLED because of solution coating process of photoresist on the ETL. Therefore, a solvent resistant ETL named 2,7-bis(4,6-diphenyl-1,3,5-triazin-2-yl)-9,9 ′ -spirobi[fluorene] (SBF-Trz) was developed and employed as the ETL of OLEDs. The SBF-Trz demonstrated excellent solvent resistance during photolithography process and enabled device performances comparable to those of the conventional OLED without any photolithography process. It was found that the SBF-Trz ETL is appropriate as the ETL of the OLED patterned by photolithography due to good electron transport property, good stability, and good solvent resistance.

关键词： Organic light-emitting diodes (OLED) Electron Transport Layer (ETL) Photolithography Patterning Reactive Ion Etching (RIE) Micro display Ultra High resolution FMM-Free

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Reusable Hydrogen Storage Tank with Flange Design

Reusable Hydrogen Storage Tank with Flange Design

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International Conference on Applied System Innovation (ICASI)

作者： Yun-Qi Li Hsuan-Jung Chen Hsi-Wen Yang Chih-Yuan Chen Shao-Fu Chang Ssu-Ying Chen Chien-Chon Chen College of Engineering and Science Ph.D. Program in Materials and Chemical Engineering National United University Miaoli Taiwan Department of Chemistry Michigan State University MI USA Department of Materials Engineering National United University Miaoli Taiwan Graduate Institute of Intellectual Property National Taipei University of Technology Taiwan Department of Energy Engineering National United University Miaoli Taiwan

ISBN: (数字)9798350394924

ISBN: (纸本)9798350394931

For how to store and transport hydrogen, the first thought is to store hydrogen directly in the cylinder. However, this method is not desirable, because generally at least 700 atm high pressure, the hydrogen contained in the cylinder to be useful. Therefore it is very unsafe at such high pressures. In This paper, we design and production of a new generation of solid-state hydrogen storage and discharge container. The goal of “development of solid-state hydrogen storage technology” is to break through the bottlenecks of hydrogen storage technology safety, hydrogen storage density, high-efficiency hydrogen absorption and release, transportation safety, and engineering practice.

关键词： Technological innovation Hydrogen storage Temperature Surface resistance Hydrogen Transportation Production

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Multifunctional devices based on planar microsupercapacitors:Progress and challenges

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science China materials 2022年第12期65卷 3202-3228页

作者： Li Song Xuting Jin Chunlong Dai Yuyang Han Jiatao Zhang Zhipan Zhang Liangti Qu Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster ScienceMinistry of Education of ChinaSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of ChemistryTsinghua UniversityBeijing 100084China

With the boom of portable,wearable,and implantable smart electronics in the last decade,the demand for multifunctional microscale electrochemical energy storage devices has *** to their excellent rate performance,high power density,long cycling lifetime,easy fabrication,and integration,multifunctional planar microsupercapacitors(PMSCs)are deemed as one of the ideal micropower sources for next-generation flexible on-chip ***,we offer a comprehensive overview of the recent progress regarding multifunctional devices based on PMSCs,including stretchable,self-healing,stimulus-responsive,thermosensitive,biodegradable,and temperaturetolerant *** also emphasize the unique applications of multifunctionally integrated PMSCs in the construction of self-powered and sensor-integrated systems in terms of multifunctional operation ***,the key challenges and future prospects related to these multifunctional devices are discussed to stimulate further research in this flourishing field.

关键词： microsupercapacitors planar devices multifunctionality self-powered integrated systems sensor-integrated system

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Au nanowires with high aspect ratio and atomic shell of Pt-Ru alloy for enhanced methanol oxidation reaction

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Chinese chemical Letters 2021年第6期32卷 2033-2037页

作者： Xiran Zhu Zheng Hu Ming Huang Yuxin Zhao Jianqiang Qu Shi Hu Tianjin Key Laboratory of Molecular Optoelectronic Science Department of ChemistrySchool of ScienceTianjin UniversityTianjin 300072China Institute of Energy Hefei Comprehensive National Science CenterHefei 230026China School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China School of Chemical Engineering and Technology Xi'an Jiaotong UniversityXi'an 710049China

The methanol oxidation reaction(MOR)is the limiting half-reaction in direct methanol fuel cell(DMFC).Although Pt is the most active single-metal electrocatalyst for MOR,it is hampered by high cost and CO *** a Pt or Ru monolayer on a second metal substrate by means of galvanic replacement of underpotentially deposited(UPD)Cu monolayer has been shown as an efficient catalyst design strategy for the electrocatalysis of MOR because of the presumed 100%utilization of atoms and resistance to CO ***,we prepared one-dimensional surface-alloyed electrocatalyst from predominantly(111)faceted Au nanowires with high aspect ratio as the substrate of under-potential *** electrocatalyst comprises a core of the Au nanowire and a shell of catalytically active Pt coated by ***-dependent electro-catalytic activity and stability is demonstrated on the Pt/Ru submonolayers on Au wires for *** all these catalysts,Au@Pt_(ML)@Ru_(ML)exhibits the best electrocatalytic activity and poisoning tolerance to *** presents a viable method for the rational catalyst design for achieving high noble-metal utilization efficiency and high catalytic performance.

关键词： Au nanowires Pt/Ru submonolayers Underpotentially deposited Core-shell nanostructure Methanol oxidation reaction

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Precise diagnosis of cardiac‐cerebral vascular diseases with magnetic resonance imaging‐based nanoprobes

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iRADIOLOGY 2024年第3期2卷 264-284页

作者： Wenyue Li Ruru Zhang Xinyi Zhang Shuai Wu Tiancong Ma Yi Hou Jianfeng Zeng Mingyuan Gao College of Materials Science and Engineering College of Life Science and TechnologyBeijing University of Chemical TechnologyBeijingChina Centre for Molecular Imaging and Nuclear Medicine School for Radiological and Interdisciplinary Sciences(RAD‐X)Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsState Key Laboratory of Radiation Medicine and Protectionand the Second Affiliated Hospital of Soochow UniversitySoochow UniversitySuzhouJiangsuChina Fischell Department of Bioengineering University of MarylandCollege ParkUSA

Cardiac‐cerebral vascular diseases(CCVDs)are acknowledged as a major threat to public health,leading to more than one‐third of all deaths *** complex anatomical structure and immune features of blood vessels significantly affect the development of CCVDs,and magnetic resonance angiography(MRA)is one of the main diagnostic approaches for the accurate diagnosis and prognosis of ***,MRA suffers from intrinsic problems derived from its blood flow‐dependency,and the clinical Gdchelating contrast agents are limited by their rapid vascular *** the past decade,spurred on by nanoscience and nanotechnology,numerous contrast agents based on magnetic nanomaterials have been developed to enhance the contrast of MRA,with these including iron oxide nanoparticles,rare earth‐doped nanoparticles,and metal‐organic coordination *** molecular MR imaging of vasculopathy using specific nanoprobes has been explored to obtain a better understanding of the molecular aspects of *** this review,the state of the art in MRA nanoprobes is introduced,and recent achievements in the diagnosis of CCVDs using MR imaging are ***,the future prospects and limitations of MRA based on nanoprobes are *** current review provides methodological designs and ideas for subsequent MRA nanoprobes.

关键词： angiography cardiovascular diseases cerebrovascular diseases magnetic resonance imaging nanoprobe

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Carbon nitride- and graphene-based materials for the photocatalytic degradation of emerging water pollutants

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materials Advances 2024年第7期5卷 2668-2688页

作者： Indra Jaya Budiarso Valentinus Alphano Dabur Riska Rachmantyo Hermawan Judawisastra Chechia Hu Arie Wibowo Master Program in Materials Science and Engineering Faculty of Mechanical and Aerospace Engineering Institut Teknologi Bandung Ganesha 10 Bandung 40132 West Java Indonesia Doctoral Program in Materials Science and Engineering Faculty of Mechanical and Aerospace Engineering Institut Teknologi Bandung Ganesha 10 Bandung 40132 West Java Indonesia Materials Science and Engineering Faculty of Mechanical and Aerospace Engineering Institut Teknologi Bandung Ganesha 10 Bandung 40132 West Java Indonesia ariewibowo@itb.ac.id Department of Chemical Engineering National Taiwan University of Science and Technology Taipei 106 Taiwan R&D Center for Membrane Technology Chung Yuan Christian University Taoyuan 320 Taiwan Research Center for Nanoscience and Nanotechnology Institut Teknolgi Bandung Ganesha 10 Bandung 40132 West Java Indonesia

Photocatalytic degradation is a promising way to treat emerging pollutants in wastewater. Recently, metal-free photocatalysts such as carbon nitride- and graphene-based materials have attracted much interest in the photocatalytic degradation of emerging water pollutants owing to their visible light activity and unique electrical properties, respectively. Graphitic carbon nitride (GCN) is considered a superior visible light–active photocatalyst because of its suitable bandgap (2.7 eV). Moreover, the facile synthesis process and the high chemical and thermal stability of GCN make it one of the research hotspots in photocatalytic wastewater treatment. Besides GCN, graphene and its derivatives are utilized to support main photocatalysts by enhancing their light absorption, pollutant adsorption, and photogenerated charge separation. Furthermore, the vast modification of these materials has promoted various outstanding performances in carbon nitride- and graphene-based photocatalysts in the application of pollutant degradation. In this review, we highlight recent developments in carbon nitride- and graphene-based photocatalysts (2018–2023), focusing on the strategies to improve the activity of GCN as a visible light–active photocatalyst and the role of graphene and its derivatives as supporting materials in wastewater pollutant remediation applications.

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Piezoelectricity of strain-induced overall water splitting of Ni(OH)2/MoS2 heterostructure

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Journal of materials Chemistry A 2023年第7期11卷 3481-3492页

作者： Le, Kim Tuyen Pham, Nguyet N. T. Liao, Yin-Song Ranjan, Ashok Lin, Hsun-Yen Chen, Po-Han Nguyen, Hoang Lu, Ming Yen Lee, Seung Geol Wu, Jyh Ming Department of Materials Science and Engineering National Tsing Hua University 101 Section 2 Kuang Fu Road Hsinchu300 Taiwan Department of Chemistry University of Science Vietnam National University Ho Chi Minh City Viet Nam School of Chemical Engineering Pusan National University 2 Busandaehak-ro 63 beon-gil Geumjeong-gu Busan46241 Korea Republic of Department of Organic Material Science and Engineering Pusan National University 2 Busandaehak-ro 63 beon-gil Geumjeong-gu Busan46241 Korea Republic of PhD Program in Prospective Functional Materials Industry National Tsing Hua University 101 Section 2 Kuang Fu Road Hsinchu300 Taiwan High Entropy Materials Center National Tsing Hua University 101 Section 2 Kuang Fu Road Hsinchu300 Taiwan Vietnam National University Ho Chi Minh City Linh Trung Ward Thu Duc City Ho Chi Minh City700000 Viet Nam

In this study, we synthesized several active sites of molybdenum disulfide (MoS2) nanoflowers (NFs) decorated with Ni(OH)2 nanoparticles (NPs) to form heterostructures. Our results revealed that Ni(OH)2/MoS2 NF heterostructures caused the splitting of water into hydrogen (H2) and oxygen (O2) gas. The Ni(OH)2/MoS2 NF interface exhibited strain-induced piezoelectric potential (piezopotential) that promoted charge separation, reducing the kinetic barrier in the water splitting process and promoting the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER). In high-resolution transmission microscopy images, the measured lattice fringe d spacing was approximately 0.67 nm, which was higher than the reported value. The calculated tensile strain of Ni(OH)2/MoS2 NF heterostructures was approximately 3.5%. The findings based on density-functional theory and using the finite element method indicated that the interfacial piezopotential generated between Ni(OH)2 and MoS2 NFs enhanced charge transfer and electrochemical reactions. To obtain a current density up to 10 mA cm−2, we set the overpotential and Tafel slope of Ni(OH)2/MoS2 NF heterostructures at 155 mV and 62.1 mV dec−1 for the HER and 328 mV and 69.3 mV dec−1 for the OER, respectively. Moreover, a high Faraday efficiency (84.1%) was observed over 48 h, with no significant decline in the HER and OER. © 2023 The Royal Society of Chemistry.

关键词： Molybdenum disulfide

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Efficient conversion of low-concentration nitrate sources into ammonia on a Ru-dispersed Cu nanowire electrocatalyst

Efficient conversion of low-concentration nitrate sources in...

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2023 AIChE Annual Meeting

作者： Chen, Feng-Yang Wu, Zhen-Yu Gupta, Srishti Rivera, Daniel J. Lambeets, Sten V. Pecaut, Stephanie Kim, Jung Yoon Timothy Zhu, Peng Finfrock, Y. Zou Meira, Debora Motta King, Graham Gao, Guanhui Xu, Wenqian Cullen, David A. Zhou, Hua Han, Yimo Perea, Daniel E. Muhich, Christopher L. Wang, Haotian Department of Chemical and Biomolecular Engineering Rice University HoustonTX United States School for Engineering of Matter Transport & Energy Chemical Engineering Program Arizona State University TempeAZ United States Physical and Computational Sciences Directorate Pacific Northwest National Laboratory RichlandWA United States Structural Biology Center X-ray Science Division Argonne National Laboratory LemontIL United States Canadian Light Source SaskatoonSK Canada Electron Microscope Center Department of Materials Science and NanoEngineering Rice University HoustonTX United States Advanced Photon Source Argonne National Laboratory LemontIL United States Center for Nanophase Materials Sciences Oak Ridge National Laboratory Oak RidgeTN United States Department of Materials Science and NanoEngineering Rice University HoustonTX United States Environmental Molecular Sciences Laboratory Earth and Biological Sciences Directorate Pacific Northwest National Laboratory RichlandWA United States School for Engineering of Matter Transport & Energy Materials Science & Engineering Program Arizona State University TempeAZ United States Department of Chemistry Rice University HoustonTX United States

Electrochemically converting nitrate ions, a widely distributed nitrogen source in industrial wastewater and polluted groundwater, into ammonia represents a sustainable route for both wastewater treatment and ammonia generation. However, it is currently hindered by low catalytic activities, especially under low nitrate concentrations. Here we report a high-performance Ru-dispersed Cu nanowire catalyst that delivers an industrial-relevant nitrate reduction current of 1 A cm-2 while maintaining a high NH3 Faradaic efficiency of 93%. More importantly, this high nitrate-reduction catalytic activity enables over a 99% nitrate conversion into ammonia, from an industrial wastewater level of 2, 000 ppm to a drinkable water level 4Cl and liquid NH3 solution products, which suggests a practical approach to convert wastewater nitrate into valuable ammonia products. Density functional theory calculations reveal that the highly dispersed Ru atoms provide active nitrate reduction sites and the surrounding Cu sites can suppress the main side reaction, the hydrogen evolution reaction. © The Author(s), under exclusive licence to Springer Nature Limited 2022.

关键词： Ammonia

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Steering CO_(2)electrolysis selectivity by modulating the local reaction environment:An online DEMS approach for Cu electrodes

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escience 2023年第4期3卷 89-98页

作者： Ke Ye Guiru Zhang Baoxin Ni Liang Guo Chengwei Deng Xiaodong Zhuang Changying Zhao Wen-Bin Cai Kun Jiang Interdisciplinary Research Center School of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240China China-UK Low Carbon College Shanghai Jiao Tong UniversityShanghai 201306China State Key Laboratory of Space Power-Sources Technology Shanghai Institute of Space Power SourcesShanghai 200245China School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesShanghai Jiao Tong UniversityShanghai 200240China Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Center of Chemistry for Energy MaterialsDepartment of ChemistryFudan UniversityShanghai 200438China

Electrochemical CO_(2)reduction is a typical surface-mediated reaction,with its reaction kinetics and product distributions largely dependent on the dynamic evolution of reactive species at the cathode–catholyte interface and on the resultant mass transport within the hydrodynamic boundary layer in the vicinity of the *** resolve the complex local reaction environment of branching CO_(2)reduction pathways,we here present a dif-ferential electrochemical mass spectroscopic(DEMS)approach for Cu electrodes to investigate CO_(2)mass trans-port,the local concentration gradients of buffering anions,and the Cu surface topology effects on CO_(2)electrolysis selectivity at a temporal resolution of~400 *** a proof of concept,these tuning knobs were validated on an anion exchange membrane electrolyzer,which delivered a Faradaic efficiency of up to 40.4%and a partial current density of 121 mA cm^(-2)for CO_(2)-to-C_(2)H_(4)*** methodology,which bridges the study of fundamental surface electrochemistry and the upgrading of practical electrolyzer performance,could be of general interest in helping to achieve a sustainable circular carbon economy.

关键词： Spectroelectrochemistry CO_(2)reduction reaction Copper electrode Differential electrochemical mass spectroscopy Local reaction environment

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