Results 71 to 80 of about 18,606,918 (240)

MOF‐Derived Cu‐TiO2/Alginate Micromotors for Buoyancy‐Regulated 3D Motion

Advanced Science, EarlyView.
In this work, cyanobacteria‐inspired sodium alginate (SA)/Cu‐TiO2/Fe3O4 hydrogel micromotors generate and encapsulate O2 microvesicles upon light irradiation, enabling buoyancy‐mediated Z‐axis upward migration and surface enrichment at the light‐exposed water‐air surface.
Wei Zou, Qing Wu, Jiawei Lin, Kunchen Li, Yulong Ying, Josep Puigmartí‐Luis, Salvador Pané, Sheng Wang   +7 more
wiley   +1 more source

Design approach for mitigation of air ingress in high temperature gas-cooled reactor

Mechanical Engineering Journal, 2016
One important safety design consideration for high temperature gas-cooled reactor (HTGR) is air ingress following a rupture of the reactor pressure boundary such as primary piping.
Hiroyuki SATO, Hirofumi OHASHI, Shigeaki NAKAGAWA   +2 more
doaj   +1 more source

Strong Metal‐Support Interaction Driven Janus Reconstruction in PtRu Alloys for Low‐Temperature Hydrogen Storage

Advanced Science, EarlyView.
Strong metal‐support interactions (SMSI) drive the spontaneous segregation of RuPt alloy into Janus nanoparticles on CeO2, spatially partitioning Pt‐rich domains for H2 dissociation and Ru‐rich domains for toluene adsorption. This Janus nanocatalysts yield a turnover frequency of 10 906 h−1 for toluene hydrogenation at 50 °C, which is 6.7 times that of
Xingyu Zhang, Haiqiang Bai, Wenbin Li, You Wang, Yunhua Xu, Sai Zhang   +5 more
wiley   +1 more source

Harmonic Calculation Based on Fission Matrix and Its Application in Power Monitoring of Gas-cooled Micro Reactor

Yuanzineng kexue jishu
The development and deployment of an accurate and intelligent core online monitoring system are crucial for advancing micro nuclear reactors. The gas-cooled micro reactor, a prismatic super-safe gas-cooled reactor design for mobile micro nuclear power ...
SHEN Pengfei1, 2, ZHANG Peng1, , ZHOU Mengfei1, ZHANG Chenglong1, YUAN Yuan1, LIU Guoming1, HUO Xiaodong1, WANG Kan2
doaj   +1 more source

NbN Broadband Plasmonic Absorbers for Efficient Hot‐Carrier Injection Toward Improved Solar‐to‐Hydrogen Conversion

Advanced Science, EarlyView.
Niobium nitride (NbN) broadband plasmonic metasurface absorbers provide an efficient platform for solar‐energy conversion through hot‐carrier injection. Quasi‐epitaxial NbN features a low work function of 4.0 eV, reducing the interfacial injection barrier and facilitating charge transfer into adjacent photocatalysts.
Tzu‐Yu Peng, Tse‐Fu Huang, Takeshi Yamaguchi, Jia‐Wern Chen, Hsing‐Yu Kuo, Ying‐Rang Zhuang, Hung Wei Shiu, Seongmin Im, Yang Zhao, Takuo Tanaka, Ho‐Hsiu Chou, Yu‐Jung Lu   +11 more
wiley   +1 more source

Thermochemical Core–Shell Architecturing of Si‐SWCNT Composites for High‐Performance Li‐Ion Battery Anodes

Advanced Science, EarlyView.
A thermochemically engineered core–shell Si architecture is developed through the controlled evolution of a SWCNT‐coated Mg2Si precursor. The process simultaneously generates a nanoporous Si shell for strain accommodation and Li+ transport, a chemically anchored SiC interfacial layer for robust mechanical and electrical coupling, and a Mg‐containing Si
Dong Gyun Hong, Byeong Guk Kim, Jung‐Hyeok Park, Sunwoo Lee, Donghwi Cho, Jaeik Hyun, Ki‐Hun Nam, Youngoh Kim, Geon‐Woong Lee, Sunhye Yang, Seung Yol Jeong, Myungwoo Choi   +11 more
wiley   +1 more source

High‐Current‐Density Acidic CO2 Electroreduction to Formic Acid Enabled by Multiscale Microenvironment Regulation Over Defect‐Rich Sn/SnOx

Advanced Science, EarlyView.
Acidic CO2 electroreduction to formic acid is enabled by integrating mixed Sn/SnOx nanoclusters, K+‐regulated interfacial solvation, and Janus wettability. Coordinated control of active sites, interfacial water, and gas‐liquid transport suppresses hydrogen evolution and delivers approximately 85% HCOOH Faradaic efficiency at 400 mA cm−2.
Qiaoqi Guo, Bowen Jiang, Le Huang, Kunyu Jiang, Rongrong Tang, Qinong Zhu, Huajun Feng, Mengyang Fan, Yijing Xia   +8 more
wiley   +1 more source

Experiments and modelling of a draft tube airlift reactor operated at high gas throughputs [PDF]

, 2013
One-dimensional modelling of global hydrodynamics and mass transfer is developed for an annulus sparged draft tube airlift reactor operating at high gas throughputs.
Colombet, Damien, Cockx, Arnaud, Guiraud, Pascal, Legendre, Dominique   +3 more
core   +1 more source

Guiding Photochemical Process Intensification Through Kinetic Diagnostics

Angewandte Chemie, EarlyView.
Photochemical methodologies are typically optimized for yield, yet yield alone provides limited insight into scalability. We show that simple kinetic diagnostics identify the dominant process limitations and guide targeted engineering interventions.
Jasper H. A. Schuurmans, Prakash Chandra Tiwari, Timothy Noël   +2 more
wiley   +2 more sources

Shutdown dose rate calculations in high-temperature gas-cooled reactors using the MCNP-ORIGEN activation automation tool [version 2; peer review: 2 approved]

Nuclear Science and Technology Open Research
Background High-temperature gas-cooled reactors (HTGRs) have many distinct features from the current light water reactor (LWR) fleet, and potential decommissioning strategies should take them into consideration.
Tomasz Kozlowski, Roberto Fairhurst-Agosta   +1 more
doaj   +1 more source