Article
Chemistry, Physical
Ji Zheng, Jia-Nan Wang, Ting Wang, Kun Wu, Rong-Jia Wei, Weigang Lu, Dan Li
Summary: A series of Ag/Au clusters with high-energy phosphorescence have been synthesized, showing tunable luminescence color through the modulation of substituents. These heterometallic clusters exhibit over 23-fold boost in phosphorescence quantum yield compared to their homometallic Ag(I) analogues.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Xia Qiu, Haifeng Wei, Renjia Li, Yongxin Li
Summary: Bimetallic Au@Pt/Au NPs with triple-layered core-shell structure were successfully prepared and characterized. The single Au@Pt/Au NPs exhibited size-dependent properties for vol-tametric response and electron-transfer rate, and showed excellent electrocatalytic activity, long-term tolerance, and anti-toxicity compared with traditional Pt catalyst. This work provides new insight into conventional electrocatalysis and offers a platform for designing entirely new catalysts at single NPs level.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Qinzhen Li, Jinsong Chai, Sha Yang, Yongbo Song, Tao Chen, Cheng Chen, Hui Zhang, Haizhu Yu, Manzhou Zhu
Summary: A new Au-Cu alloy nanocluster with alterable charge states has been synthesized and characterized, revealing the reversible interconversion between two different charge states. This study provides new insights into the relationship between electronic structure and properties of nanoclusters, contributing to the further development of nanoclusters with excellent performance.
Article
Biophysics
Yi Pan, Xinlin Wei, Xiaodong Guo, Hui Wang, Haiyun Song, Canping Pan, Naifeng Xu
Summary: A dual-model colorimetric/fluorescent immune probe based on Au-Ag NCs and PEI-Au NPs was successfully constructed for rapid and ultrasensitive detection of DICO, with improved sensitivity in ic-ELISA method and a quantitative LOD in LFIA method. The fluorescence signal significantly enhanced the detection sensitivity in ic-ELISA method with a LOD of 0.62 ng/mL, while the fluorescence model detection in LFIA method achieved a quantitative LOD at the level of 1.59 ng/mL.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Taewan Kwon, Nitee Kumari, Amit Kumar, Jongwon Lim, Chang Yun Son, In Su Lee
Summary: In this study, Au/Pt-based Janus nanostructures were used to achieve efficient molecular transport in physiological environments, while a dynamic-casting approach was developed to create nanomotors with strong interactive properties.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Chanchal Sharma, Sana Ansari, Mohammad Shahnawaze Ansari, Soami P. Satsangee
Summary: In this study, Pt nanoparticles and Au/Pt alloy nanoparticles were successfully synthesized using an aqueous extract of Syzygium aromaticum buds. The reduction of metal ions was attributed to the presence of phenolic compounds, mainly eugenol. The alloy nature of the nanoparticles was confirmed by UV-Visible spectroscopy. The morphology and size of the particles were influenced by concentration, pH, and temperature. Various techniques were employed to analyze the structural and compositional features of the nanoparticles. The Au/Pt alloy nanoparticles exhibited good antioxidant potential and antibacterial activity. They also showed higher catalytic efficiency for the reduction of PNP compared to monometallic Pt nanoparticles.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Qing Liu, Yajing Zhang, Ping Qian
Summary: In this work, the thermodynamic stabilities and structural evolution of Pd-decorated Cu-based CJ nanoclusters were studied by molecular dynamics simulations. The results showed that these nanoclusters undergo a Cubo-Ico structural transformation before melting, which is dependent on the size and Pd composition.
Article
Chemistry, Inorganic & Nuclear
Rhone P. Brocha Silalahi, Tzu-Hao Chiu, Jhen-Heng Kao, Chun-Yen Wu, Chi-Wei Yin, Yu-Chiao Liu, Yuan Jang Chen, Jean-Yves Saillard, Ming-Hsi Chiang, C. W. Liu
Summary: The synthesis, structural characteristics, and photophysical properties of luminescent Cu-rich bimetallic superatomic clusters were studied. The clusters display similar structures with gold (or silver)-centered Cu-12 cuboctahedra surrounded by dithiocarbamate/dithiophosph(in)ate and alkynyl ligands. Doping Au and Ag atoms into polyhydrido copper nanoclusters significantly enhances their PL quantum yields.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Analytical
Vadym Borysiuk, Iakov A. Lyashenko, Valentin L. Popov
Summary: Thermal stability of triple layered Au@Pt@Au core-shell nanoparticles for H2O2 bi-directional sensing was investigated through computational study. The raspberry-like shape of the nanoparticles and their structural parameters were studied using classical molecular dynamics simulations. The results showed that the core-shell structure of the nanoparticles was maintained up to approximately 900 K, but was destroyed at higher temperatures.
Article
Chemistry, Multidisciplinary
Yanlin Zhu, Ruoxi Zhao, Lili Feng, Chen Wang, Shuming Dong, Mikhail V. Zyuzin, Alexander Timin, Narisu Hu, Bin Liu, Piaoping Yang
Summary: This study developed a bimetallic nanozyme (Pt50Sn50) with dual enzymatic activities and photothermal enhancement for tumor catalytic therapy. The Pt50Sn50 BNCs exhibited the highest activities among all investigated samples, including enzymatic activity and photothermal property. They also showed dual-mode imaging capacity for real-time monitoring of the therapeutic process.
Article
Multidisciplinary Sciences
Luca Bruno, Mario Scuderi, Francesco Priolo, Luigi Falciola, Salvo Mirabella
Summary: Bimetallic decoration of semiconductor electrodes improves catalytic and sensing performances. Au, Pd and Au@Pd nanoparticles were synthesized and characterized. The decorated electrodes show higher redox currents and a shift in redox peaks. The presence of bimetallic nanoparticles enhances the electrochemical performances of the material.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Yanlin Zhu, Ruoxi Zhao, Lili Feng, Chen Wang, Shuming Dong, Mikhail V. Zyuzin, Alexander Timin, Narisu Hu, Bin Liu, Piaoping Yang
Summary: Generating reactive oxygen species (ROS) within tumors using nanozymes is a promising strategy for cancer therapeutics. Here, a bimetallic nanozyme (Pt50Sn50) with photothermal enhancement of enzymatic activities for tumor catalytic therapy is developed. The Pt50Sn50 nanozyme exhibits the highest activities among all investigated due to the generation of SnO2-x with oxygen vacancy sites on its surface.
Article
Chemistry, Multidisciplinary
Vera Giulimondi, Andrea Ruiz-Ferrando, Adam H. Clark, Selina K. Kaiser, Frank Krumeich, Antonio J. Martin, Nuria Lopez, Javier Perez-Ramirez
Summary: This study investigates the indirect, coordination-induced catalytic synergies in carbon-supported Ru-Pt SACs and reveals a new principle of intermetallic cooperativity.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Bo Peng, Liu-Xi Zheng, Pan-Yue Wang, Jia-Feng Zhou, Meng Ding, Hao-Di Sun, Bing-Qian Shan, Kun Zhang
Summary: This study reveals that the origin of photoluminescence in noble metal NCs lies in the structurally confined water molecules in nanocavities formed by surface-protective ligand packing. The Ag cation mediated Au-Ag bimetal NCs exhibit a pH-dependent dual-emission characteristic with a large Stokes shift of up to 200 nm, making them potential ratiometric nanosensors for pH detection. These findings provide a new understanding of the abnormal photoluminescence emission phenomena in metal NCs.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Physical
Puranjan Chatterjee, Hsin Wang, J. Sebastian Manzano, Uddhav Kanbur, Aaron D. Sadow, Igor I. Slowing
Summary: The study reports an improved catalytic activity for the aerobic alpha-oxidation of amines using silica-supported Au nanoparticles by tethering pyridyl ligands to the support. The research indicates that ligands affect the electronic properties of the Au nanoparticles, which in turn determine their ability to activate O-2 and mediate C-H cleavage in the substrate.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Shufang Zhu, Lilin Lu
Article
Chemistry, Multidisciplinary
Naoki Toshima, Yukihide Shiraishi
PURE AND APPLIED CHEMISTRY
(2020)
Article
Electrochemistry
Shinichi Hata, Kazuki Taguchi, Mokichi Kusada, Yukou Du, Yukihide Shiraishi, Naoki Toshima
Article
Nanoscience & Nanotechnology
Shunsuke Kobayashi, Yukihide Shiraishi, Tomohiro Miyama, Naoki Toshima
Article
Chemistry, Physical
Zhuhua Ruan, Jiaqi Ni, Jing Yan, Shufang Zhu, Lilin Lu, Yi Liu
Summary: A new strategy for morphology regulation of beta-Mo2C/MoO2 heterostructure via heteroatom doping was reported to enhance electrocatalytic HER activity. S doping led to improved activity and stability, while N doping caused significant degradation. Mechanism investigations revealed that nanorod morphology of S@beta-MoC/MoO2 played a crucial role in enhancing its HER activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Physics, Applied
Shinichi Hata, Mokichi Kusada, Soichiro Yasuda, Yukou Du, Yukihide Shiraishi, Naoki Toshima
Summary: In this study, the electrical conductivity of carbon nanotube films was significantly enhanced by low-temperature calcination-induced pyrolysis, leading to a substantial improvement in the power factor. Additionally, the addition of a Pd catalyst reduced the optimal calcination temperature, further enhancing the performance of the carbon nanotube film.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jinjin Ma, Jing Yan, Junjie Xu, Jiaqi Ni, Ruiling Li, Li Li, Lilin Lu
Summary: This study demonstrates the preparation of ultrathin Bi2O2O/Bi2O2(OH)(NO3) nanosheets with in-situ tailored hydrogen bonds, which exhibit high-efficiency formate production in electrochemical CO2 reduction. The preservation of bismuth-oxygen moieties contributes to the excellent CO2RR activity.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Xiao-Jun Feng, Ning Yan, Yanqun Wang, Ping Mei, Wu Chen, Lilin Lu, Lu Lai
Summary: Twelve 8-hydroxyquinoline derivatives were synthesized and characterized. Their inhibition efficiencies (IEs) were evaluated in a 1.0 M HCl solution, and the results showed that the alkyl chain length, heteroatoms, and number of benzene rings significantly affect the IE. The study also investigated the adsorption behavior of the derivatives on a steel surface and established quantitative structure-activity relationship models using linear regression and neural networks. Both models demonstrated good fits and predictive ability.
Article
Chemistry, Physical
Haohui Gu, Feng Liang, Xiaohan Wang, Shuaibing Wu, Gongye Lv, Haijun Zhang, Shaowei Zhang, Lilin Lu, Zhijun Dong
Summary: The synthesis of NT@CN core/shell structure S-scheme heterojunction photocatalyst was achieved by uniformly growing graphitic carbon nitride (g-C3N4) on the surface of nitrogen-doped rutile TiO2 (NT) nanorods. The as-synthesized heterojunction with 55 wt% g-C3N4 showed the highest CO2 photoreduction activity (33.35 μmol g(-1) for CO) without additional cocatalysts or external sacrificial agents, which was 7.1 times higher than that of bare NT nanorods. This improvement was attributed to the large surface area and impactful S-scheme heterostructure, enabling sufficient visible-light harvesting ability, segregation and transformation of charge pairs, and enhanced redox ability of carriers. Furthermore, the NT@CN photocatalyst displayed excellent reusability and stability. This work provides a new foundation for designing and preparing rutile TiO2-based S-scheme heterojunctions with enhanced CO2 reduction performance.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Physics, Applied
Shinichi Hata, Misaki Shiraishi, Soichiro Yasuda, Gergely Juhasz, Yukou Du, Yukihide Shiraishi, Naoki Toshima
Summary: This research developed a simple green method for preparing stable thermoelectric materials carbon nanotubes (CNTs) by doping with cationic surfactants. The researchers also fabricated thermoelectric power conversion modules using the doped CNTs that can work stably underwater. This research is of great importance for the development of reliable soft electronics for underwater applications.
ENERGY MATERIAL ADVANCES
(2022)
Article
Materials Science, Multidisciplinary
Shinichi Hata, Riku Nakata, Soichiro Yasuda, Hiroki Ihara, Yukou Du, Yukihide Shiraishi, Naoki Toshima
Summary: This study investigated the organic TE properties of polyazacycloalkane/CNT TE films prepared using the drop casting method and the effect of Cu ion doping. Cu ions could coordinate with the organic ligands and switch the charge carrier type of the composite film from electrons to holes, resulting in improved thermal-electric performance. These findings suggest a promising approach for enhancing the efficiency of CNT-based TE modules with water-soluble dopants.
MATERIALS ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Jianwei Zheng, Simson Wu, Lilin Lu, Chen Huang, Ping-Luen Ho, Angus Kirkland, Tim Sudmeier, Rosa Arrigo, Diego Gianolio, Shik Chi Edman Tsang
Summary: A nitrogenase-inspired inorganic-based chalcogenide system has been developed for efficient electrochemical conversion of N-2 to NH3, showing high activity and excellent faradaic efficiency. The Fe-1 single atom on [Fe-S-2-Mo] is found to favor the reduction of N-2 to NH3 under optimal negative potential. Operando X-ray absorption and simulations, along with theoretical DFT calculations, provide insights on the electron-mediating and catalytic roles of the [Fe-S-2-Mo] motifs and Fe-1 on this 2D molecular layer slab.
Article
Materials Science, Multidisciplinary
Keisuke Oshima, Yukihide Shiraishi, Takuya Matsumura, Ayumi Kuriyama, Kazuki Taguchi, Junta Inoue, Hiroaki Anno, Naoki Toshima
MATERIALS ADVANCES
(2020)
Article
Chemistry, Multidisciplinary
Junkai Wang, Zhenxia Huang, Lilin Lu, Quanli Jia, Liang Huang, Shuai Chang, Mingyang Zhang, Zuotai Zhang, Sun Li, Dongsheng He, Wenhao Wu, Shaowei Zhang, Naoki Toshima, Haijun Zhang
Article
Energy & Fuels
Yanan Zhu, Wu Wen, Yamin Li, Lilin Lu, Jiuzhong Yang, Minggao Xu, Yang Pan
JOURNAL OF THE ENERGY INSTITUTE
(2020)
