Results 101 to 110 of about 9,492 (275)

Hydrogen (H2) Recovery From Hydrogen Sulfide (H2S): Current Technologies, Challenges, and Future Outlook

Advanced Science, EarlyView.
ABSTRACT Hydrogen sulfide (H2S) can be transformed into hydrogen (H2) through several chemical and catalytic processes, offering a promising route for both waste treatment and clean H2 production. This colorless, flammable, and toxic gas is found abundantly in swamps, volcanoes, hot springs, sewages, other natural gas fields, and even in refineries and
Divyesh Cirikonda, Astrid Campos‐Mata, Sehmus Ozden, Shreyasi Chattopadhyay, Pulickel M. Ajayan   +4 more
wiley   +1 more source

Development of an Analytic Nodal Diffusion Solver in Multigroups for 3D Reactor Cores with Rectangular or Hexagonal Assemblies.

, 2009
More accurate modelling of physical phenomena involved in present and future nuclear reactors requires a multi-scale and multi-physics approach. This challenge can be accomplished by the coupling of best-estimate core-physics, thermal-hydraulics and ...
Aragonés Beltrán, José María, García Herranz, Nuria, Lozano Montero, Juan Andrés   +2 more
core  

An Innovative Hybrid Loop-Pool Design for Sodium Cooled Fast Reactor [PDF]

, 2007
The existing sodium cooled fast reactors (SFR) have two types of designs – loop type and pool type. In the loop type design, such as JOYO (Japan) [1] and MONJU (Japan), the primary coolant is circulated through intermediate heat exchangers (IHX) external
Zhang, Hongbin, Zhao, Haihua
core  

ML Workflows for Screening Degradation‐Relevant Properties of Forever Chemicals

Advanced Science, EarlyView.
The environmental persistence of per‐ and polyfluoroalkyl substances (PFAS) necessitates efficient remediation strategies. This study presents physics‐informed machine learning workflows that accurately predict critical degradation properties, including bond dissociation energies and polarizability.
Pranoy Ray, Andrew R. Castillo, Manoj Kolel‐Veetil, Surya R. Kalidindi   +3 more
wiley   +1 more source

MetalCenter‐Dependent Selectivity Divergence in MN4 Single‐Atom Catalysts for Aerobic HMF Oxidation

Advanced Science, EarlyView.
Two single‐atom catalysts with M‐N4 configurations (FeN4 and CoN4) were developed for selective HMF oxidation. FeN4 achieves 93.9% selectivity toward FFCA via superoxide anions (O2•−), while CoN4 preferentially produces FDCA through hydroxyl radicals (•OH). DFT calculations reveal that distinct adsorption energies and charge redistribution at the metal
Haoyu Wang, Zhilong Ye, Weihao Wang, Zhi Hu, Qing Tian, Jie Gao, Lianbing Zhang   +6 more
wiley   +1 more source

Fuel processor - PEM fuel cell systems for energy generation

, 2010
In the last few years, increasing attention has been paid to PEM fuel cells, as promising device for decentralized energy production, both in stationary and automotive field, thanks to high compactness, low weight (high power-to-weight ratio), high ...
Menna, Laura
core  

Spontaneous Non‐Catalyzed Molecular Reactions and Interactions in the Human Body: Biomedical Implications

Advanced Science, EarlyView.
ABSTRACT The human body functions as a natural reactor for a vast network of chemical and biological reactions and physical interactions among small molecules, proteins, cells, and numerous other components. These reactions/interactions are essential for maintaining normal physiological functions.
Yuhao Cai, Chao Zhao
wiley   +1 more source

Buried Unstrained Germanium Channels: A Lattice‐Matched Platform for Quantum Technology

Advanced Science, EarlyView.
ABSTRACT Strained germanium (ε$\varepsilon$‐Ge) and strained silicon (ε$\varepsilon$‐Si) buried quantum wells have enabled advanced spin‐qubit quantum processors. However, in the absence of suitable lattice‐matched substrates, ε$\varepsilon$‐Ge and ε$\varepsilon$‐Si are deposited on defective, metamorphic SiGe buffers, which may impact device ...
Davide Costa, Patrick Del Vecchio, Karina Hudson, Lucas E. A. Stehouwer, Alberto Tosato, Davide Degli Esposti, Vladimir Calvi, Luca Moreschini, Mario Lodari, Stefano Bosco, Giordano Scappucci   +10 more
wiley   +1 more source

Module Development and Verification for Fuel-pin Cladding Failure of Sodium-cooled Fast Reactor Based on System Code FRTAC

Yuanzineng kexue jishu
The inherent safety of reactor is emphasized in the design of sodium-cooled fast reactors (SFRs), and the performance analysis of oxide fuel plays a critical role in the safety assessment of SFRs, as fuel swelling and cladding failure are key phenomena ...
LEI Yi1, ZHANG Bin1, 2, , WU Zongyun3, YANG Wenqiang1, FENG Siqi1
doaj   +1 more source

Efficient Electrocatalytic Conversion of CO2 to Pure Formic Acid Solutions via Strain‐Engineered Bismuth Nanosheets

Advanced Science, EarlyView.
Tensile‐strained bismuth nanosheets (TS‐BiNs) achieve a formate Faradaic efficiency of 92% at −1000 mA cm−2 and enable stable production of pure formic acid (HCOOH) in a solid‐state electrolyte reactor. Theoretical calculations reveal that the introduced strain lowers the energy barrier for *OCHO intermediate formation, fundamentally enhancing the ...
Shiqi Li, Yuefeng Zhang, Panzhe Qiao, Cuo Wu, Xinya Tian, Yufeng Xu, Yun Zhang, Peng Wang, Tingting Li, Muhammad Afaq, Xinlin Luo, Tang Wang, Chunxiao Liu, Zi‐You Yu, Chuan Xia, Min‐Rui Gao, Zhen‐Yu Wu   +16 more
wiley   +1 more source