Article
Chemistry, Physical
B. Aspe, X. Castel, V Demange, D. Passerieux, M. A. Pinault-Thaury, F. Jomard, S. Deputier, D. Cros, V Madrangeas, V Bouquet, R. Sauleau, M. Guilloux-Viry
Summary: This study deposited K0.5Na0.5NbO3 thin films by pulsed laser deposition on MgO substrates for microwave device applications, showing potential in this field. The films exhibited good frequency tunability and dielectric performance, with stability maintained even under temperature variations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Optics
Eric Tournie, Laura Monge Bartolome, Marta Rio Calvo, Zeineb Loghmari, Daniel A. Diaz-Thomas, Roland Teissier, Alexei N. Baranov, Laurent Cerutti, Jean-Baptiste Rodriguez
Summary: This article reviews the research field of mid-infrared semiconductor lasers integrated on Si substrates, with a focus on the epitaxial integration of antimonide lasers. It explains the high-performance diode lasers, quantum cascade lasers, and interband cascade lasers achieved through molecular-beam epitaxy and metal-organic vapor phase epitaxy techniques. The article also discusses the potential of etching the facets of antimonide lasers grown on Si for photonic integrated circuits.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Chemistry, Physical
Azza Hadj Youssef, Gitanjali Kolhatkar, Ifeanyichukwu C. Amaechi, Rajesh Katoch, Yoandris Gonzalez, Alexandre Merlen, Andreas Ruediger
Summary: Controlled post-annealing of SrTiO3 thin films on vicinal MgO (100) substrates results in the evolution of surface morphology, leading to the formation of stepped structures with enhanced periodicity. Double post-annealing treatment at 900 degrees C and 700 degrees C generates step bunching with large terraced structures, providing potential templates for the growth of functional materials.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Zichao Li, Ye Yuan, Rene Hubner, Viktor Begeza, Thomas Naumann, Lars Rebohle, Olav Hellwig, Manfred Helm, Kornelius Nielsch, Slawomir Prucnal, Shengqiang Zhou
Summary: Researchers successfully prepared B20-MnSi films on Si(100) substrates, offering better conditions for practical applications. The regrown layer exhibits a higher Curie temperature compared to bulk material, and the magnetic skyrmion signature was confirmed through magnetic and transport measurements. Flash-lamp annealing in the millisecond range shows promise for fabricating Si-based skyrmionic devices.
MATERIALS TODAY PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Tanja Jawinski, Chris Sturm, Roland Clausing, Heiko Kempa, Marius Grundmann, Roland Scheer, Holger von Wenckstern
Summary: In this study, indium sulfide (In2S3) thin films were deposited on glass and sapphire substrates by physical co-evaporation. The structural properties of the films were optimized by varying the deposition parameters. The sample grown epitaxially on an α-sapphire substrate exhibited the smoothest surface and highest crystallinity. The optical absorption properties were found to be independent of the deposition parameters and substrate material. Weak and strong absorption onsets were observed at 1.7 eV and 2.5 eV, respectively, which were attributed to direct band-band transitions at 2.1 eV and 2.7 eV. The electrical characterization revealed photovoltaic activity but low performance due to non-ideal heterojunction properties. A strong and persistent photoconductivity was also observed, resulting in a time-dependent dark resistivity after light exposure.
Article
Chemistry, Multidisciplinary
Sen Xie, Yujie Ouyang, Wei Liu, Fan Yan, Jiangfan Luo, Xianda Li, Ziyu Wang, Yong Liu, Xinfeng Tang
Summary: This study successfully grew high quality Mg3Sb2 films on mismatched substrates and investigated the temperature-driven twin structure evolution and electronic structure characteristics. Effective manipulation of epitaxial strains, twin structure, and Fermi level was achieved by controlling the growth parameters, providing valuable insights for the further exploration and optimization of the thermoelectric and topological properties of Mg3Sb2 films.
Article
Materials Science, Multidisciplinary
Yoonho Ahn, Jong Yeog Son
Summary: The study investigated the deposition-rate-dependent ferroelectric properties of BaTiO3 thin films fabricated through pulsed laser deposition, revealing an enhancement in ferroelectric properties with increased tetragonality. It was also found that the deposition rate affects the leakage current and bandgap energy of the films.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Optics
Andres Remis, Laura Monge-Bartolome, Michele Paparella, Audrey Gilbert, Guilhem Boissier, Marco Grande, Alan Blake, Liam O'Faolain, Laurent Cerutti, Jean-Baptiste Rodriguez, Eric Tournie
Summary: Silicon photonics is a key technology in many fields, enabled by mature Si process technology, large silicon wafer size, and promising Si optical properties. However, monolithic integration of III-V lasers and Si photonic devices on the same Si substrate has been a challenge. In this study, we demonstrate the first semiconductor laser grown on a patterned Si photonics platform with light coupled into a waveguide. This work lays an important foundation for future low-cost, large-scale, fully integrated photonic chips.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Chemistry, Physical
Xiaoyan Zhu, Yang Li, Yali Xie, Qian Qiu, Cuimei Cao, Xiao Hu, Wenhui Xie, Tian Shang, Yang Xu, Lin Sun, Wenjuan Cheng, Dongmei Jiang, Qingfeng Zhan
Summary: We quantitatively investigated the magnetocrystalline anisotropy of metamagnetic FeRh films epitaxially grown on MgO(001) substrates. We observed that the in-plane fourfold magnetic anisotropy of epitaxial FeRh films is reoriented and enhanced when FeRh undergoes a phase transition from ferromagnetic to antiferromagnetic states. The observed anisotropy is attributed to the exchange coupling between the residual ferromagnetic moments caused by antisite defects and the antiferromagnetic matrix. Furthermore, our first-principles calculations suggest that the lattice compressive strain imposed by the MgO substrate is crucial in determining the magnetic structure of FeRh films.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Larisa Arapkina, Kirill Chizh, Dmitry B. Stavrovskii, Vladimir P. Dubkov, Elizabeth P. Lazareva, Vladimir A. Yuryev
Summary: The article investigates the processes occurring during the molecular-beam deposition of germanium layers on Si3N4 dielectric substrates within a wide range of temperatures. It is found that IR absorption bands related to vibrations of N-H and Si-N bonds decrease with increasing Ge deposition temperature, while peaks corresponding to Ge-N and Ge-O vibration bonds emerge in X-ray photoelectron spectra. Experimental results suggest diffusion of hydrogen atoms from the Si3N4 layer into the growing Ge film, triggering diffusion of germanium atoms in the opposite direction.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Materials Science, Multidisciplinary
J. F. McNulty, K. Temst, M. J. Van Bael, A. Vantomme, E-M Anton
Summary: The study demonstrates the growth of epitaxial SmN thin films on Si surfaces under controlled conditions, without forming silicide impurities. The low lattice mismatch of SmN with Si, in combination with the low cost and maturity of Si processing technology, offers a promising route for further research on the fundamental properties of SmN and the development of spin-transport devices.
PHYSICAL REVIEW MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
David S. Walch, Yeseul Yun, Niranjan Ramakrishnegowda, Lutz Muehlenbein, Andriy Lotnyk, Cameliu Himcinschi, Akash Bhatnagar
Summary: The material system Bi2FeCrO6 (BFCO) exhibits a unique combination of ferroelectricity, ferromagnetism, reduced band gap, and high conductivity, making it ideal for practical applications such as ferroelectric solar cells. Thin films of BFCO grown epitaxially on SrTiO3 substrates show a self-ordered ionic arrangement and demonstrate superior photovoltaic performance compared to a reference film. Scanning probe microscopy is used to test the ferroelectric switching properties, while macroscopic measurements reveal bi-directional multi-stage resistive switching that affects the photovoltaic performance of the heterostructure.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Vivek Devulapalli, Hanna Bishara, Matteo Ghidelli, Gerhard Dehm, C. H. Liebscher
Summary: Investigation of titanium thin films deposited on different substrates using e-beam evaporation revealed that thin films on SiNx and NaCl substrates were nanocrystalline, while films on sapphire substrate transformed from nanocrystalline to single crystalline at higher deposition temperatures. Orientations of (0002) were predominantly observed in the single crystalline films grown on sapphire substrate, minimizing surface energy. Results were supported by resistivity measurements showing an increase in resistivity for single crystalline and nanocrystalline films.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
H. W. Chang, S. U. Jen, Y. Y. Shen, D. H. Tseng
Summary: The saturation magnetostriction of sputter-prepared Fe71Co10Ga19 films on Si(100) substrates is mainly influenced by the amount of m-D0(3) phase and can be controlled by adjusting sputtering parameters. The thickness dependence of magnetostriction shows an increase in lambda s as thickness decreases in the range of 200 nm to 50 nm, while a decrease is observed in the range of 50 nm to 30 nm.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Wanli Xu, Jiacheng Shi, Yuewen Li, Xiangqian Xiu, Shan Ding, Zili Xie, Tao Tao, Peng Chen, Bin Liu, Rong Zhang, Youdou Zheng
Summary: In this study, the effects of off-angled sapphire substrates on the surface morphologies and crystal quality of heteroepitaxial beta-Ga2O3 films were systematically investigated. The results showed that the films grown on substrates with an off-angle of around 7 degrees exhibited a flatter surface morphology and better crystal quality, compared to films grown on (0 0 0 1) sapphire. These findings could be beneficial for the heteroepitaxy of high-quality Ga2O3 films with smooth surfaces.
Review
Materials Science, Multidisciplinary
Yiqian Liu, Yao Wang, Ji Ma, Shun Li, Hao Pan, Ce-Wen Nan, Yuan-Hua Lin
Summary: This article provides a comprehensive review of the research advances on bismuth ferrite (BFO) and introduces various domain engineering strategies, such as chemical modification and substrate engineering. The electrical properties, magnetoelectric couplings, and optical effects of BFO are also discussed.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Shun Li, Zhicheng Zhao, Maosong Liu, Xinbo Liu, Wei Huang, Shikuan Sun, Yinhua Jiang, Yong Liu, Jianming Zhang, Zuotai Zhang
Summary: In this study, a novel heterostructured piezo-photocatalyst was developed by decorating plasmonic Au nanoparticles on piezoelectric AgNbO3 nanocubes. The significantly enhanced photocatalytic performance of the optimized nanocomposites can be attributed to the synergetic coupling of localized surface plasmon resonance (SPR) effect and piezotronic effect, which facilitate the extraction of energetic hot electrons from AuNPs to the AgNbO3 driven by the mechanical vibration induced piezo-potential near the heterojunction.
Article
Nanoscience & Nanotechnology
Jiahui Gu, Hong Liu, Tingyu Peng, Shun Li, Li Xu, Jianming Zhang, Long Zhang
Summary: This study demonstrates the importance of plasmonic scattering-enhanced absorption for efficient photocatalytic organic conversion in the visible to near-infrared wavelength region. By adjusting the size and aggregation status of the core, the scattering effect can be tuned.
ACS APPLIED NANO MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Shun Li, Zuquan Zheng, Zhicheng Zhao, Youling Wang, Yao Yao, Yong Liu, Jianming Zhang, Zuotai Zhang
Summary: CeO2-MnO2 nanocomposites show excellent low temperature NH3-SCR activity, reducing NOx efficiently at temperatures ranging from 150 to 300 degrees Celsius. The outstanding performance is attributed to the strong synergistic interaction between CeO2 nanoparticles and MnO2 nanoflowers, as well as the high surface area and intimate contact.
Article
Chemistry, Multidisciplinary
Shun Li, Zhicheng Zhao, Jiabin Li, Hong Liu, Maosong Liu, Yuqiao Zhang, Lizhong Su, Ana Isabel Perez-Jimenez, Yunchang Guo, Fan Yang, Yong Liu, Jinzhu Zhao, Jianming Zhang, Li-Dong Zhao, Yuanhua Lin
Summary: Piezoelectric SnSe nanomaterials show great potential in driving green catalysis processes, such as H-2 evolution, through mechanical energy. These materials exhibit exceptional piezoelectricity, high charge mobility, and flexibility, making them ideal for stimulating piezocatalysis reactions.
Article
Nanoscience & Nanotechnology
Hong Liu, Ren Zhu, Nannan Shi, Long Zhang, Shun Li, Jianming Zhang
Summary: This study demonstrates that the nanohybrid structure of BaTiO3-Au (BTO-Au) can enhance the charge carrier transfer efficiency and catalytic activity in photocatalytic organic conversion by coupling the piezotronic effect with surface plasmonic resonance (SPR).
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Green & Sustainable Science & Technology
Lin Liang, Lei Jin, Gurpreet Singh Selopal, Federico Rosei
Summary: As the largest energy importer and consumer with the second-largest economy, China heavily relies on fossil fuels, making it a major player in the global energy trade. To achieve energy independence and address environmental concerns, China is investing in and deploying renewable energy technologies on a large scale. Through its energy diplomacy strategy, China aims to position itself as a global leader in the energy sector and promote sustainable development. This strategy has the potential to have worldwide implications and contribute to achieving several Sustainable Development Goals.
Review
Biochemistry & Molecular Biology
Qian Yu, Wenhui Shi, Shun Li, Hong Liu, Jianming Zhang
Summary: Cancer is a deadly disease that has prompted researchers to explore effective therapeutic strategies. In recent decades, nanomaterials with unique physical and chemical properties have been used for the treatment of various cancers. Piezoelectric nanomaterials, which can convert ultrasound vibration energy into electrical energy, have attracted increasing attention in biomedical research, leading to the emerging technique of ultrasound-driven tumor therapy. Piezoelectric materials are expected to provide a better solution for efficient and safe cancer treatment, as well as patient pain relief.
Article
Chemistry, Multidisciplinary
Xiaoxue Song, Shun Li, Jianming Zhang, Weidong Shi, Long Zhang
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Engineering, Chemical
Elnaz Afsharipour, Kirtiman Deo Malviya, Mohammadreza Montazeri, Ebrahim Mortazy, Ramin Soltanzadeh, Alireza Hassani, Federico Rosei, Mohamed Chaker
Summary: We designed, fabricated, and tested a humidity sensor based on an optical fiber-based evanescent wave probe. The fiber was bent into a U-shape and de-cladded, then coated with either Au or ZnO nanoparticles. Humidity is detected through the interaction in the surface plasmon resonance of the coated nanoparticles. The sensor showed high sensitivity and linearity over a wide range of humidity levels.
Article
Chemistry, Physical
Rui Li, Shuoyang Liang, Aikelaimu Aihemaiti, Shun Li, Zuotai Zhang
Summary: Piezocatalysis technology, utilizing the mechanical energy from the surrounding environment, is a promising method for removing organic pollutants from water. In this study, 2H-MoS2 flower-like nanosheets with tunable S vacancies were synthesized via a hydrothermal method. The presence of S vacancy significantly enhanced the piezoelectric response in the MoS2 nanosheets, resulting in excellent degradation efficiency for Orange II solution under ultrasonic vibration. This study not only presents a simple and effective strategy for improving the piezocatalytic degradation activity of MoS2, but also provides new insights into the underlying mechanism.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yangyang Wan, Jiaojiao Zhang, Dayong Wang, Pengting Sun, Lebin Shi, Shun Li, Jianming Zhang, Xiaohong Yan, Xiaojun Wu
Summary: In this study, a data-driven search method for two-dimensional covalent organic frameworks (COFs) capable of visible-light-driven overall water splitting was proposed. Through high-throughput first-principles computations and experimental validations, seven 2D COFs with overall water splitting capability were identified from the CoRE COF database. The photocatalytic activities of these COFs were verified and optimized through preliminary experiments, achieving hydrogen and oxygen production rates of 80 and 32 μmolg(-1) h(-1) respectively, without the need for sacrificial agents. This work represents a promising approach to accelerate the discovery and design of COFs for visible-light-driven overall water splitting.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Yuyan Xu, Shun Li, Min Chen, Jianming Zhang, Federico Rosei
Summary: The quest for carbon neutrality has become a major component of global climate governance, with significant efforts on heterogeneous photocatalysis using carbon-based nanomaterials. This review highlights the state-of-the-art of such materials in emerging photocatalytic applications.
TRENDS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Shiyin Zhao, Maosong Liu, Yuqiao Zhang, Zhicheng Zhao, Qingzhe Zhang, Zhenliang Mu, Yangke Long, Yinhua Jiang, Yong Liu, Jianming Zhang, Shun Li, Xuanjun Zhang, Zuotai Zhang
Summary: This study designs and fabricates a novel metal-organic framework (MOF) nanosheet for piezocatalytic water splitting, highlighting the potential of MOF-based porous piezoelectric nanomaterials in driving chemical reactions.
MATERIALS HORIZONS
(2022)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.