Bulk Micromachining of Si by Metal‐assisted Chemical EtchingSmall - Tập 10 Số 18 - Trang 3761-3766 - 2014
S. B. Kim, Dahl‐Young Khang
Bulk micromachining of Si is demonstrated by the well‐known metal‐assisted chemical etching (MaCE). Si microstructures, having lateral dimension from 5 μm up to millimeters, are successfully sculpted deeply into Si substrate, as deep as >100 μm. The key ingredient of this success is found to be the optimizations of catalyst metal type and its morphology. Combining the respective advanta...... hiện toàn bộ
Advanced Transition Metal‐Based OER Electrocatalysts: Current Status, Opportunities, and ChallengesSmall - Tập 17 Số 37 - 2021
Kexin Zhang, Ruqiang Zou
AbstractOxygen evolution reaction (OER) is an important half‐reaction involved in many electrochemical applications, such as water splitting and rechargeable metal–air batteries. However, the sluggish kinetics of its four‐electron transfer process becomes a bottleneck to the performance enhancement. Thus, rational design of electrocatalysts for OER based on thoroug...... hiện toàn bộ
Cytotoxicity and Immunological Response of Gold and Silver Nanoparticles of Different SizesSmall - Tập 5 Số 13 - Trang 1553-1561 - 2009
Hung‐Jen Yen, Shan‐hui Hsu, Ching‐Lin Tsai
AbstractThe immunological response of macrophages to physically produced pure Au and Ag nanoparticles (NPs) (in three different sizes) is investigated in vitro. The treatment of either type of NP at ≥10 ppm dramatically decreases the population and increases the size of the macrophages. Both NPs enter the cells but only AuNPs (especially those with smaller diamter)...... hiện toàn bộ
Photoassisted Construction of Holey Defective g‐C3N4 Photocatalysts for Efficient Visible‐Light‐Driven H2O2 ProductionSmall - Tập 14 Số 9 - 2018
Li Shi, Liuqing Yang, Wei Zhou, Yanyu Liu, Lisha Yin, Xiao Hai, Hui Song, Jinhua Ye
AbstractHoley defective g‐C3N4 photocatalysts, which are easily prepared via a novel photoassisted heating process, are reported. The photoassisted treatment not only helps to create abundant holes, endowing g‐C3N4 with more exposed catalytic active sites and crossplane diffusion ch...... hiện toàn bộ
Synergistic Effect of Electron Scattering and Space Charge Transfer Enabled Unprecedented Room Temperature NO2 Sensing Response of SnO2Small - Tập 19 Số 48 - 2023
Yajie Zhang, Yadong Jiang, Zhen Yuan, Bohao Liu, Qiuni Zhao, Qi Huang, Ziteng Li, Wen Zeng, Zaihua Duan, Huiling Tai
AbstractMetal oxide gas sensors have long faced the challenge of low response and poor selectivity, especially at room temperature (RT). Herein, a synergistic effect of electron scattering and space charge transfer is proposed to comprehensively improve gas sensing performance of n‐type metal oxides toward oxidizing NO2 (electron acceptor) at R...... hiện toàn bộ
Thermal Instability Induced Oriented 2D Pores for Enhanced Sodium StorageSmall - Tập 14 Số 21 - 2018
Lingjun Kong, Chen‐Chao Xie, Haichen Gu, Chaopeng Wang, Xianlong Zhou, Jian Liu, Zhen Zhou, Zhao‐Yang Li, Jian Zhu, Xian‐He Bu
AbstractHierarchical porous structures are highly desired for various applications. However, it is still challenging to obtain such materials with tunable architectures. Here, this paper reports hierarchical nanomaterials with oriented 2D pores by taking advantages of thermally instable bonds in vanadium‐based metal–organic frameworks (MOFs). High‐temperature calci...... hiện toàn bộ
Morphology and Structure Engineering in Nanofiber Reactor: Tubular Hierarchical Integrated Networks Composed of Dual Phase Octahedral CoMn2O4/Carbon Nanofibers for Water OxidationSmall - Tập 13 Số 26 - 2017
Han Zhu, Danni Yu, Songge Zhang, Jiawei Chen, Wenbo Wu, Meng Wan, Lina Wang, Ming Zhang, Mingliang Du
1D hollow nanostructures combine the advantages of enhanced surface‐to‐volume ratio, short transport lengths, and efficient 1D electron transport, which can provide more design ideas for the preparation of highly active oxygen evolution (OER) electrocatalysts. A unique architecture of dual‐phase octahedral CoMn2O4/carbon hollow nanofibers has been ...... hiện toàn bộ