Article
Chemistry, Physical
Jae Hyeon Jo, Hee Jae Kim, Najma Yaqoob, Kyuwook Ihm, Oliver Guillon, Kee-Sun Sohn, Naesung Lee, Payam Kaghazchi, Seung-Taek Myung
Summary: For the first time, hollandite-type K0.17TiO2 is introduced as a potential cathode material for potassium-ion batteries. The single-phase reaction involving K+ insertion into the tunnel structure of K0.17TiO2 is predicted by density functional theory calculation. Experimental analyses confirm the de-/intercalation of potassium ions from/into the crystal structure of K0.17TiO2, accompanied by a Ti4+/Ti3+ redox reaction. The hollandite-type K0.17TiO2 cathode exhibits excellent cycling stability and capacity retention, making it a promising candidate for potassium-ion batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Optics
Dong-Yue Guo, Jia-Min Liu, De-Long Zhang
Summary: This study proposes an on-chip switch based on lithium-niobate-on-insulator (LNOI) photonic wire, which utilizes a temperature phase transition material (PTM) to control and switch between different optical modes. The optimized device has a compact size and excellent switching performances, making it suitable for high-density photonic integrated circuits.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Michael Y. Toriyama, Dean Cheikh, Sabah K. Bux, G. Jeffrey Snyder, Prashun Gorai
Summary: Rare-earth chalcogenide Y2Te3 is studied as a promising n-type thermoelectric material due to its low lattice thermal conductivity and tunable electron carrier concentration. Computational and defect calculations show its transport properties and optimized thermoelectric performance, as well as its potential for n-type doping using halogens.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Xing Yang, Liangjun Lu, Yu Li, Yue Wu, Ziquan Li, Jianping Chen, Linjie Zhou
Summary: Integrated Mach-Zehnder interferometers (MZIs) with phase-change materials offer low power consumption and compact size for reconfigurable photonic processors. However, they suffer from low optical extinction ratio and limited switching cycles due to material loss and poor reversible repeatability. A non-volatile electrically reconfigurable MZI with a low-loss phase-change material (Sb2Se3) encapsulated in Al2O3 layers is demonstrated. By dividing the Sb2Se3 patch into small sub-cells to restrict material reflow, more than 10,000 reversible phase-change cycles and 6-bit multilevel switching states are achieved.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ruoxi Zhao, Sibo Kang, Chao Wu, Zhongjun Cheng, Zhimin Xie, Yuyan Liu, Dongjie Zhang
Summary: Researchers have developed a liquid metal shape memory polymer foam that can be tuned for resistance and thermal conductivity. By loading electrically and thermally conductive liquid metal on a deformable foam skeleton, the foam can be reversibly pressed to enable the transfer of liquid metal between connected and disconnected states. The obtained liquid metal shape memory polymer foam exhibits stable changes in resistance and thermal conductivity, demonstrating its potential for electrical-thermal dual-regulation.
Article
Optics
Xing Yang, Muhammad Shemyal Nisar, Wei Yuan, Fengang Zheng, Liangjun Lu, Jianping Chen, Linjie Zhou
Summary: This Letter demonstrates a 2 x 2 nonvolatile silicon Mach-Zehnder optical switch enabled by low-loss phase change material Sb2S3, which can switch optical transmission between bar and cross paths without requiring static power to maintain the phase state. It shows promising applications in optical switch matrices and reconfigurable optical circuits.
Article
Engineering, Electrical & Electronic
Kiruthika Parangusan, Venkat Subramaniam, Anandha Babu Ganesan, P. Sundara Venkatesh, Deepalekshmi Ponnamma
Summary: Polymer dielectrics are highlighted for their better dielectric strength and supreme versatility compared to inorganic ceramic dielectrics in sophisticated electronics and pulsed power systems. This study presents a viable solution-casting method for creating MoO3 doped PVA-based composites with notable dielectric characteristics. The influence of MoO3 content on the complex dielectric properties and other electrical parameters of PVA is investigated, demonstrating the potential of MoO3 doped PVA composite in creating compact polymer electrolyte systems.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
D. Zhao, Q. Jiang, Y. Jia, J. Zhou, N. Zheng, D. Hu, Y. Ma
Summary: This study demonstrates the use of phenyl lithium doping to create a suspension mixed with unsubstituted NDI, which can be drop-cast to prepare dense films for TE applications. By optimizing the doping ratio, impressive electrical conductivity and Seebeck coefficient were achieved in the TE film.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Bandar A. Al-Asbahi, Saif M. H. Qaid, Ahmed G. El-Shamy
Summary: A polymeric nanocomposite based on Te/PEDOT:PSS films has been developed for electromagnetic interference (EMI) wave shielding, showcasing excellent shielding effectiveness and high conductivity.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Engineering, Multidisciplinary
Qian Zhang, Liang Shen, Ping Liu, Panpan Xia, Junliang Li, Han Feng, Caixia Liu, Kun Xing, Aiguo Song, Man Li, Xiaoming Yang, Ying Huang
Summary: In this paper, a resistance-type flexible pressure sensor with crack structure was fabricated using graft-modified MWCNTs and water-based polyurethane, showing high gauge factor, fast response time, good repeatability, and accurate pulse waveform capture. A three-layer back propagation neural network was constructed to regress blood pressure values, achieving high correlation coefficients meeting A-level standards. This study provides a real-time and portable technology for home blood pressure measurement.
COMPOSITES PART B-ENGINEERING
(2021)
Review
Materials Science, Multidisciplinary
Fei Long, Yuchuan Cheng, Yong Ren, Jun Wang, Zhixiang Li, Aihua Sun, Gaojie Xu
Summary: This review discusses the advantages of soft actuators inspired by nature, focusing on the benefits of high flexibility and safety for human operators. It highlights the importance of smart phase change materials in soft actuation applications, with a comprehensive analysis of their properties and limitations. The review provides insights into the potential applications for soft actuators by emphasizing the different forms of phase transformation among solid, liquid, and gas phases.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Chemistry, Physical
Jihyeon Park, Seungju Jo, Narasimharao Kitchamsetti, Shakir Zaman, Daewon Kim
Summary: Recently, various electroactive materials composed of binary transition metal oxides and conducting polymers have been extensively studied. In this study, a new nanocomposite material with well-defined surface morphology and significant synergistic effect was developed using a hydrothermal method. The nanocomposite showed high performance in battery-type electrodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yingsong Xue, Zhixu Zhang, Pingping Shi, Wanying Zhang, Qiong Ye, Dawei Fu
Summary: The study identified a new stimuli-responsive switchable material with second harmonic generation and dielectric switch functions. Through refining the cations, a reversible high-temperature phase transition material was successfully obtained, providing a new approach to design novel functional switch materials.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Kun Yin, Yang Gao, Hao Shi, Shiqiang Zhu
Summary: In this study, an ultra-compact integrated optical switch based on phase-change materials (PCMs) is proposed. The device utilizes a pixelated sub-wavelength structure to achieve customized refractive indices, leading to improved performance. The simulation results show that the device has a low insertion loss and a high extinction ratio.
Article
Physics, Applied
Yanming Guo, Liangwei Zhu, Shuni Chen, Sihong Zhou, Qinghui Pan, Junming Zhao, Yong Shuai
Summary: This article proposes a dual-band polarized wavelength-selective optical switch with thermochromic transmission property. By adjusting the structure and polarization state, different frequencies of thermochromic transmission can be achieved. This study is of great importance for designing metamaterials with wavelength-selective broadband thermochromic transmission property.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Hui Ding, Peng Wang, Caijie Su, Hongfei Liu, Xiaolin Tai, Nan Zhang, Haifeng Lv, Yue Lin, Wangsheng Chu, Xiaojun Wu, Changzheng Wu, Yi Xie
Summary: The epitaxial growth of highly crystalline Pt3Ni overlayer on earth-abundant nickel carbide is reported, forming Ni3C@Pt3Ni core-shell nanoparticles with a well-defined interface through a new lattice-match-directed synthetic strategy. Derived from such core-shell nanostructures, ultrathin highly crystalline Pt3Ni nanocages have an advantageous configuration of oxygen reduction reaction (ORR)-favored facets and inherently high active surface area for the ORR, bringing high mass activity and specific activity.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Qi Zheng, Ying Xiong, Kun Tang, Mingzai Wu, Haibo Hu, Tianpei Zhou, Yudong Wu, Zhiqian Cao, Jin Sun, Xinxin Yu, Changzheng Wu
Summary: Introducing porosity into the carbon structure enhances the electrocatalytic activity for oxygen reduction reaction by improving wetting property and interaction with O2. The NSC/Co9S8 sample with an average pore size of 200 nm showed the best catalytic activities and was used in rechargeable zinc-air batteries, demonstrating significantly improved durability and stability. This study showcases a versatile and clever strategy for regulating advanced electrocatalytic materials, enabling their integration into flexible, secure energy storage and conversion devices.
Review
Chemistry, Multidisciplinary
Jiajing Wu, Jing Peng, Haofeng Sun, Yuqiao Guo, Hongfei Liu, Changzheng Wu, Yi Xie
Summary: Intercalation chemistry plays a crucial role in solid-state physics and chemistry, enabling the modulation of electronic structures and the construction of new materials with unique properties. It has gained popularity in recent years in the synthesis and regulation of 2D transition metal dichalcogenides (TMDs), which have extensive applications in electronics, optoelectronics, and energy-based devices. In this review, the authors provide a comprehensive overview of recent advances in intercalation exfoliation of 2D TMD materials, focusing on the interactions between the host, guest, and solvent. The effect of intercalation chemistry on the synthesis and modification of TMD nanosheets is discussed, considering lattice strain, interlayer distance, and carrier density. The review concludes with a prospectus on future research opportunities in the intercalation chemistry of 2D materials.
ADVANCED 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
Chun Wang, Hengyu Xu, Han Cheng, Hao Yu, Si Liu, Wenjie Wang, Ruilin Yuan, Hongfei Liu, Tianpei Zhou, Wangsheng Chu, HengAn Wu, Yi Xie, Changzheng Wu
Summary: This study successfully enhanced the thermal insulation performance of 2D layered double hydroxide nanosheets through interfacial ion regulation, achieving a high level of thermal insulation effect.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Qiyang Jiao, Tianpei Zhou, Nan Zhang, Shihao Liu, Qingyuan Huang, Wentuan Bi, Wangsheng Chu, Xiaojun Wu, Yongchun Zhu, Yuan Feng, Changzheng Wu
Summary: This study demonstrates the use of porous titanium nitride nanosheets as an anode coating to achieve long-term dendrite-free aqueous zinc-ion batteries. By optimizing electron conduction and ion flux, the TiN-coated zinc electrode exhibits no dendrite formation for 600 hours, and the complete AZIB assembly maintains stable performance for 600 cycles.
SCIENCE CHINA-MATERIALS
(2022)
Article
Multidisciplinary Sciences
Jing Peng, Haofeng Sun, Kun Ni, Jiajing Wu, Xinyu Sun, Yueqi Su, Han Cheng, Yuhua Liu, Yuqiao Guo, Wentuan Bi, Yanwu Zhu, Changzheng Wu, Yi Xie
Summary: Acidic water electrolysis is important for renewable energy development, but there is a trade-off between high activity and long lifespan for oxygen evolution catalysts. We have demonstrated a new oxygen evolution model catalyst, hierarchical palladium (Pd), with superior performance compared to iridium- and ruthenium-based materials.
NATIONAL SCIENCE REVIEW
(2023)
Article
Chemistry, Multidisciplinary
Baohu Dai, Changzheng Wu, Yi Xie
Summary: The role of structure imperfections on the performance of electrochromic transition metal oxide (ETMO) was investigated. It was found that structure imperfections hinder the ion shuttling speed, resulting in a lower response rate. By dividing the ion accommodation sites into normal sites and abnormal sites, the reasons for non-linear coloration and rate capability loss were explained.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jing Peng, Yueqi Su, Haifeng Lv, Jiajing Wu, Yuhua Liu, Minghao Wang, Jiyin Zhao, Yuqiao Guo, Xiaojun Wu, Changzheng Wu, Yi Xie
Summary: In this study, a new 2D ferromagnetic material, CuCrSe2 nanosheets with even-odd-layer-dependent ferromagnetism when laminated from an antiferromagnetic bulk, is reported. Monolayer and even-layer CuCrSe2 exhibit the anomalous Hall effect and a significantly enhanced magnetic ordering temperature, while the odd-layer samples exhibit the linear Hall effect. Theoretical calculations suggest that the layer-dependent magnetic coupling is attributable to the orbital shift of the Cr atoms in the CrSe2 layers due to the Cu-induced breaking of the centrosymmetry.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qiyang Jiao, Xingwu Zhai, Zhixin Sun, Wenjie Wang, Shihao Liu, Hui Ding, Wangsheng Chu, Min Zhou, Changzheng Wu
Summary: This study develops an ultrafast, universal, and cost-effective superfilling method to construct a metal artificial interface decorated Zn anode in situ. Most zincophilic metals can be used to construct a homogenous interface without any restrictions on the size, morphology, or curvature of the substrates. The obtained Sn@Zn anode exhibits superior electrochemical performance and can operate for over 900 hours at different current densities. The easy fabrication and recyclability of the cells enable efficient design and exploration of Zn anodes for research, industrialization, and commercialization purposes.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tianpei Zhou, Yetao Xu, Yu Zhen, Kaijin Wu, Honghe Ding, Linjun Wang, Xiaolin Tai, Xueru Cai, Xun Zhang, Tianpu Xia, Junfa Zhu, Wangsheng Chu, Yong Ni, Yi Xie, Changzheng Wu
Summary: A layered inorganic silicate aerogel pillared with nanoclusters has been developed for high temperature thermal insulation. The well dispersed and strong coupled nanocluster pillars in the interlayers not only significantly decrease the solid thermal conductivity but also maintain the layered structure under high temperatures.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yang Wang, Minghao Wang, Ting Chen, Weisheng Yu, Hongfei Liu, Han Cheng, Wentuan Bi, Min Zhou, Yi Xie, Changzheng Wu
Summary: In this study, a novel Fe-N(4) conjugated organic polymer (COP) electrocatalyst was developed, allowing for precise design of the Fe-N(4) structure and exhibiting better ORR performance. The COP showed a half-wave potential of 0.933 V and negligible activity decay after 40,000 cycles. When used as the cathode electrocatalyst in a hydroxide exchange membrane fuel cell, it achieved a peak power density of around 210 mW/cm².
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Yuhua Liu, Jing Peng, Kai Zhang, Mei Sun, Ming Huang, Wenjie Wang, Yueqi Su, Xiaojun Wu, Yi Xie, Changzheng Wu
Summary: Layered materials with intercalated ions have diverse physical and chemical properties. To create exotic two-dimensional materials, doping and alteration of crystals by ionic guest species are commonly used. In this study, a new interlayered structure in Cu0.65NbS2 nanosheets was found to induce superconductivity, which is different from the normal-metal crystal.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ruilin Yuan, Chun Wang, Long Chen, Han Cheng, Wentuan Bi, Wensheng Yan, Yi Xie, Changzheng Wu
Summary: Hollow nanostructures with enclosed or semi-enclosed spaces inside are crucial for intrinsic physicochemical properties. A new configuration of hollow nanostructures with more than three layers of shells and integrated mesopores on every shell has been developed, exhibiting periodic interfaces and abundant mesopores. The thermal conductivity is low due to the suppression of gas molecule convection by boundary scattering. This design provides an ideal platform for studying the influence of nanostructure design on intrinsic physicochemical properties and promotes the development of hollow nanostructures.
Review
Chemistry, Multidisciplinary
Yuan Ruilin, Chen Long, Wu Changzheng
Summary: This paper introduces the mechanisms and novel characteristics of heat conduction in classical two-dimensional nanomaterials, expounds the influence of interface engineering on heat conduction, and further expects the prospects of atomic-molecular interface regulation in the field of heat conduction in two-dimensional materials.
ACTA CHIMICA SINICA
(2022)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
