Article
Chemistry, Multidisciplinary
Tadeas Hanus, Javier Arias-Zapata, Bouraoui Ilahi, Philippe-Olivier Provost, Jinyoun Cho, Kristof Dessein, Abderraouf Boucherif
Summary: Large-scale homogeneous porous germanium (PGe) layers are synthesized by improving the bipolar electrochemical etching (BEE) process, allowing for accurate tuning of PGe's physical properties through variation of etching parameters. The PGe structures demonstrate excellent homogeneity in thickness and porosity, with a relative variation of below 2% across the wafer. Ellipsometry and X-ray reflectivity provide fast and non-destructive methods for characterizing the porosity and thickness of PGe layers. These findings pave the way for large-scale production of high-quality PGe layers with on-demand characteristics.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Physical
Jing Li, Xinglai Zhang, Bing Yang, Cai Zhang, Tingting Xu, Lixin Chen, Liu Yang, Xin Jin, Baodan Liu
Summary: This study introduces an efficient PDMS printing strategy for controllable preparation and transfer of a large-area non-layered 2D Ga2O3 amorphous layer, and proposes a template-confined reaction to achieve other 2D Ga-group crystals, enabling the fabrication of high-performance and multifunctional electronics.
CHEMISTRY OF MATERIALS
(2021)
Article
Energy & Fuels
Valentin Daniel, Thomas Bidaud, Jeremie Chretien, Nicolas Paupy, Ahmed Ayari, Thierno Mamoudou Diallo, Tadeas Hanus, Jonathan Henriques, Abdelatif Jaouad, Jean-Francois Lerat, Bouraoui Ilahi, Jinyoun Cho, Kristof Dessein, Christian Dubuc, Gwenaelle Hamon, Abderraouf Boucherif, Maxime Darnon
Summary: A PEELER process is developed to separate the grown layers and allow for the reuse of germanium, reducing the environmental and economic cost of optoelectronic devices. Validation using device performance demonstrates the viability of growing high-performance optoelectronic devices on detachable Ge films. This work paves the way for detachable III-V solar devices and reusable germanium wafers.
Article
Green & Sustainable Science & Technology
Chao Qun Li, Hai Tao Chen, Run Wei Mo, Jian Nong Wang
Summary: This study proposes two facile methods to prepare ultra-black films with polyaniline (PANI) and polydimethylsiloxane (PDMS) by template replicating or acid etching. The experimental results show that the films have a diffuse reflectance of <1.0% in the visible region (400-800 nm) for ultra-black absorption, leading to an impressive solar-thermal conversion efficiency of 88.37%. The films also exhibit large sizes, large flexibility, excellent abrasion resistance, chemical stability, and damage reparability, making them applicable for energy conversion under harsh environmental conditions.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Junfang Hao, Bin Liu, Mari Takahashi, Shinya Maenosono, Jianhui Yang
Summary: Large Au@Pd core-porous shell nanoparticles with sizes ranging from 20 to 60 nm were synthesized using the seed-mediated growth method. Cetyltrimethylammonium chloride, acting as a surfactant and structure-directing agent, played a crucial role in determining the morphology and nanoporous shell structure of Au@Pd core-porous shell nanoparticles. The electrocatalytic ethanol oxidation performance of Au@Pd core-porous shell nanoparticles of different sizes was investigated, and the observed high electrocatalytic activity followed a volcano-shaped trend that was attributed to the nanoporous structure of the Pd/PdOx shell.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Hojeong Shin, Seounghun Kang, Se-Youl Chae, Cheolhee Won, Dal-Hee Min
Summary: Cancer vaccine aims to deliver cancer antigens effectively to professional antigen-presenting cells, but it is limited by non-specific or adverse immune responses, stability, and safety issues. In this study, an injectable nanovaccine platform based on large-sized porous silica nanoparticles (PSNs) was developed. This nanovaccine induced sufficient tumor-specific immune response and successful tumor regression.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Xinshu Zou, Hao Liu, Hao Xu, Xueyun Wu, Xiaocang Han, Jianli Kang, Kolan Madhav Reddy
Summary: This study proposes a simple strategy for synthesizing ultra-thin Cr2CTx MXenes with superior performance in hydrogen evolution reaction and high stability. The fabricated material exceeds even Pt catalyst in terms of performance, showcasing potential for practical applications.
MATERIALS TODAY ENERGY
(2021)
Article
Multidisciplinary Sciences
Zhiwei Li, Qingsong Fan, Zuyang Ye, Chaolumen Wu, Zhongxiang Wang, Yadong Yin
Summary: Colloidal assembly into chiral superstructures can be achieved rapidly and with materials of any chemical compositions and sizes using magnetic assembly techniques. The chiral superstructures are controlled by the strength of the magnetic field and the orientation of the magnets. Moreover, the chirality can be transferred to achiral molecules by incorporating guest molecules into the magnetic nanostructures.
Article
Chemistry, Physical
Xiao Kong, Jianing Zhuang, Liyan Zhu, Feng Ding
Summary: This study presents a low computational cost large-scale kinetic Monte Carlo (KMC) algorithm to simulate the evolution of graphene islands during growth and etching processes, providing new insights and data for understanding the growth and etching of graphene.
NPJ COMPUTATIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Fei Zuo, Qiang Wang, Zheng-Qing Yan, Milad Kermani, Salvatore Grasso, Guang-Lin Nie, Bei-Bei Jiang, Fu-Po He, Hua-Tay Lin, Li-Guo Wang
Summary: This study proposes a novel Ultrafast High-temperature Sintering (UHS) configuration using graphite powder medium, which allows for the production of larger and complex-shaped ceramic products with fast sintering rate and fine tuning of microstructures.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Multidisciplinary
Zhiwei Li, Jian Zhang, Jianbo Jin, Fan Yang, Rashed Aleisa, Yadong Yin
Summary: This study demonstrates the creation of surface concavity in Au nanorods through seed-mediated growth in confined spaces and their thermochromic responses to temperature changes. By templating against Fe3O4 nanorods, a unique surface concavity is created, allowing precise tuning of the nanorods' plasmonic properties through aging in different solvents.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Lan Peng, Qianying Guo, Chaoyu Song, Samrat Ghosh, Huoshu Xu, Liqian Wang, Dongdong Hu, Lei Shi, Ling Zhao, Qiaowei Li, Tsuneaki Sakurai, Hugen Yan, Shu Seki, Yunqi Liu, Dacheng Wei
Summary: This study reveals that supercritical CO2 significantly accelerates single-crystal polymerization, allowing for the production of large-sized, high-quality 2D COF single crystals.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Kainan Xiong, Sheng Wang, Xiaoniu Tu, Zhenyong Man, Yanqing Zheng, Tomoaki Karaki, Erwei Shi
Summary: CTGS crystals are excellent high temperature piezoelectric materials grown by the Czochralski method. The crystals exhibit strong surface exposure on specific faces, with varying growth rates. They also demonstrate consistent piezoelectric properties and electrical resistivities at different temperatures.
Article
Chemistry, Physical
Zuxin Chen, Quan Chen, Zebing Chai, Bin Wei, Jun Wang, Yanping Liu, Yumeng Shi, Zhongchang Wang, Jingbo Li
Summary: The article introduces a novel ultrafast crystal growth technique, which can obtain high-quality large-sized GaSe crystals in a short period of time and demonstrates its potential application in optoelectronic devices.
Article
Multidisciplinary Sciences
Birte Hindenlang, Anna Gapeeva, Martina J. Baum, Soren Kaps, Lena M. Saure, Florian Rasch, Jorg Hammel, Julian Moosmann, Malte Storm, Rainer Adelung, Fabian Schuett, Berit Zeller-Plumhoff
Summary: The study investigates the coating mechanism using tetrapodal zinc oxide for creating multi-scaled foam structures, which shows that using a polar medium such as water can lead to a homogeneous coating of the entire network.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Long Kuai, Zheng Chen, Shoujie Liu, Erjie Kan, Nan Yu, Yiming Ren, Caihong Fang, Xingyang Li, Yadong Li, Baoyou Geng
NATURE COMMUNICATIONS
(2020)
Article
Nanoscience & Nanotechnology
Caihong Fang, Xiaomin Jiang, Jinwu Hu, Jiaojiao Song, Na Sun, Deliang Zhang, Long Kuai
Summary: This study presents a successful synthesis method for ultra-small and uniform Ru nanoparticles, and investigates their high catalytic activity in CO oxidation reactions.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Applied
Yapeng Xiang, Jie He, Na Sun, Yuteng Fan, Liming Yang, Caihong Fang, Long Kuai
MICROPOROUS AND MESOPOROUS MATERIALS
(2020)
Article
Chemistry, Physical
Jiaojiao Song, Yixuan Yang, Shoujie Liu, Lei Li, Nan Yu, Yuteng Fan, Zhiming Chen, Long Kuai, Baoyou Geng
Summary: This study investigates the impact of dispersion and support on the activity of Pt in CO oxidation reaction, revealing that reducible TiO2 significantly influences Pt activity with lower apparent activation barriers, and that single-atom dispersion of Pt maximizes active sites.
Article
Chemistry, Applied
Na Sun, Jiaojiao Song, Qingmei Tao, Erjie Kan, Long Kuai
Summary: Photocatalysis using metal oxide semiconductors and solar energy is an attractive green method for converting organics. This study successfully achieved high-efficiency mesoporous TiO2 decorated with single atomic Pt, which improved reaction performance by constructing high-density single-atom reaction sites.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Qingmei Tao, Jiaojiao Song, Na Sun, Yiming Ren, Linlin Xiang, Shoujie Liu, Long Kuai
Summary: In this study, Co-doped CeO2-supported single-atom Pt catalysts were synthesized and found to promote low-temperature oxidation of CO. The activity of the catalysts can be easily modified by changing the loading of Pt and/or doping amount of Co. These findings provide a new approach for the design of catalysts for CO oxidation at low temperature.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Long Kuai, Li Liu, Qingmei Tao, Nan Yu, Erjie Kan, Na Sun, Shoujie Liu, Baoyou Geng
Summary: This study develops an efficient micro-gas blasting strategy to prepare versatile noble metal single-atoms/metal oxide nanosheets catalysts. The Pt/CeO2 nanosheets catalyst exhibit superior reactivity and stability in the water-gas shift reaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Biochemistry & Molecular Biology
Haiwei Yang, Peng Wang, Qiliang Yang, Dengfeng Wang, Yong Wang, Long Kuai, Zongqian Wang
Summary: Superelastic silk fibroin (SF)-based aerogels are fabricated by extracting preserved mesostructures of SF fibers as building blocks. These aerogels, called SMNFAs, demonstrate desirable properties including low density and superelasticity. The potential applications of SMNFAs in air purification and thermal insulation are also investigated to exhibit their functionality.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Multidisciplinary
Tingjuan Wang, Feiran Chen, Jiahao Wang, Chao Wang, Long Kuai, Baoyou Geng
Summary: In this study, Fe and Ni were introduced into Co-MOF to create a multicomponent phosphide hollow architecture. The multicomponent nature enhanced the catalytic activity, while the sheet-like surface and inter-sheet voids allowed for better electrolyte penetration and gas generation. The optimized product showed excellent catalytic hydrogen evolution reaction (HER) performance and long-term stability at different current densities.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Na Sun, Linlin Xiang, Bingsen Zhuge, Erjie Kan, Nan Yu, Lei Li, Long Kuai
Summary: This study demonstrates an excellent and cost-effective Ni-Ce-Ox catalyst prepared by synchronous spray-pyrolysis, which shows excellent catalytic performance in low-temperature CO oxidation reactions. The optimized Ni incorporation leads to a significant decrease in T50 and higher CO conversion rate. Theoretical calculations reveal that the reduction in oxygen vacancy formation energy at Ni-Ce single-atom sites enhances the adsorption activation of CO molecules. Furthermore, the Ni-Ce-Ox catalyst prepared by synchronous spray-pyrolysis exhibits superior performance compared to the counterparts prepared by immersion and hydrothermal methods.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Chao Wang, Hu Zang, Changjiang Liu, Jiahao Wang, Long Kuai, Baoyou Geng
Summary: This study reveals the influence of Pt and Ru loading and PtRu alloy modification on the catalytic performance of Cu(111) electrodes through oxygen isotope tracing experiments and computational theoretical calculations. The results show that Pt loading increases the surface H-adsorption activity of Cu and has an independent activation energy route, while Ru loading enhances the adsorption strength of H2O on Pt surface and promotes hydrogen evolution. Based on this finding, a PtRu/Cu(111) catalyst is constructed in this study, and the molar ratio between Pt and Ru is optimized to achieve the best catalytic performance.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Zhiqing Cui, Xin Wang, Ran Li, Long Kuai, Caihong Fang
Summary: A feasible one-pot approach was developed to prepare Au core/CeO2-(Au nanoclusters) nanostructures without surfactants, which exhibited significantly improved activity and stability in CO conversion. The special architecture of Au/CeO2-Au provided abundant exposed Au atoms and oxygen vacancies, ensuring effective reactant transfer and preventing aggregation or further growth during catalysis. The conversion remained at 100% even after 300 hours and 20 cycles, making this work a new pathway for designing effective catalysts with high activity and stability, especially for small-sized metal nanoclusters.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Linlin Xiang, Yunqin Hu, Yanyan Zhao, Sufeng Cao, Long Kuai
Summary: This study presents a PtCo/C alloy catalyst with a lower particle size and higher electrochemical surface area compared to commercial catalysts. The optimized synthesis conditions resulted in a PtCo/C catalyst with improved mass activity, showing potential for practical use in fuel cells.
Article
Materials Science, Multidisciplinary
Yunqin Hu, Linlin Xiang, Long Kuai, Yanyan Zhao, Sufeng Cao, Li Liu, Caihong Fang, Baoyou Geng
Summary: This research establishes a new method of incipient wetness impregnation (IWI) for preparing high-loading Pt/C catalysts with sub-3 nm Pt nanoparticles and a loading up to 60 wt%. A two-step reduction strategy is developed to overcome the limitations of traditional IWI method in controlling the size of Pt nanoparticles at high loadings. The as-prepared 60% Pt/C catalyst exhibits high power density and low Pt loading, outperforming the state-of-the-art commercial 60% Pt/C in H-2-air fuel cells.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Applied
Linlin Xiang, Shunsheng Wang, Long Kuai
Summary: This work presents the synthesis of mesoporous single-atom Pt1/TiO2 microspheres using a polymer micelle-induced method. The obtained catalysts demonstrate high surface area and pore volume, and exhibit superior activity for CO oxidation at low temperatures. The catalysts show a significant improvement of 50-60 °C in CO conversion compared to non-mesoporous catalysts prepared using conventional methods. This study provides a new approach for the development of efficient single-atom catalysts for CO oxidation.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
