Results 91 to 100 of about 31,928 (260)

Thermally Assisted Photocatalytic Dehydrogenation of Methanol in Continuous Steady‐State Operation

Advanced Science, EarlyView.
Thermally assisted photocatalytic methanol dehydrogenation on Pt/TiO2 enables formaldehyde and hydrogen production far beyond thermodynamic limits. Continuous operation delivers up to 95% selectivity over 70 h, and oxygen microdosing strongly boosts conversion by regenerating surface oxygen sites.
Stubenrauch Florian, Nathrath Phillip, Schörner Markus, Mahayni Yazan, Fritsch Birk, Hutzler Andreas, Wasserscheid Peter, Bösmann Andreas, Schühle Patrick   +8 more
wiley   +1 more source

Beyond Traditional Phenolics: Disulfide Bonds for Performance Enhancement of Aerospace Ablation‐Resistant Materials from Processing to Recycling

Advanced Science, EarlyView.
The dynamic disulfide bonds facilitated the development of high‐performance aerospace ablation‐resistant materials. At moderate temperature, the dissociation and recombination of disulfide bonds ensured excellent processability, mechanical properties, and recycling ability of phenolic resin; at high temperature, cleavage of disulfide bonds produced ...
Yu Li, Boyuan Hu, Xiaolong Xing, Huan Yang, Ziqi Zhang, Cheng Bian, Ruixue Bai, Ling Yue, Chengshuang Zhang, Xinli Jing   +9 more
wiley   +1 more source

Modeling Hydrogen-Assisted Combustion of Liquid Fuels in Compression-Ignition Engines Using a Double-Wiebe Function

Energies
This article discusses the potential of using the double-Wiebe function to model combustion in a compression-ignition engine fueled by diesel fuel or its substitutes, such as hydrotreated vegetable oil (HVO) and rapeseed methyl ester (RME), and hydrogen ...
Stanislaw Szwaja, Saugirdas Pukalskas, Romualdas Juknelevičius, Alfredas Rimkus   +3 more
doaj   +1 more source

Multi‐Scale Bionic Structure Constructs Biomass Flame‐Retardant Thermal Insulation Foam Material

Advanced Science, EarlyView.
Inspired by mussel adhesion and hierarchical brick‐and‐mortar architectures, a cellulose‐based biomimetic foam is constructed by anchoring bentonite nanosheets onto a polydopamine‐decorated cellulose nanofiber network. The resulting foam combines low thermal conductivity with intrinsic flame retardancy and full biodegradability, presenting a ...
Jianming Liao, Lijun Fan, Yunyuan Dong, Xuyu Bao, Xiaobin Chen, Qifu Zheng, Guanqing Zhang, Shen Wang, Wei Chen, Min Zhang, Shuaiming He   +10 more
wiley   +1 more source

Hydrogen Storage Systems Supplying Combustion Hydrogen Engines—Review

Energies
The hydrogen drive is a promising zero-emission solution in transportation that can be realised through hydrogen internal combustion engines or hydrogen fuel cells. The hydrogen combustion engine’s advantage lies in the simplicity and greater maturity of
Jakub Lach, Kamil Wróbel, Wojciech Tokarz, Justyna Wróbel, Piotr Podsadni, Andrzej Czerwiński   +5 more
doaj   +1 more source

Decoupling Electronic–Ionic Transport and Catalysis Enables High‐Performance, Chemically Stable Sr‐Free Air Electrodes for High‐Temperature Solid Oxide Cells

Advanced Science, EarlyView.
A Sr‐free air electrode for high‐temperature solid oxide cells is designed by independently tailoring electronic conduction, ionic transport, and surface catalysis using complementary Sr‐free phases and infiltrated nanocatalysts. It delivers performance comparable to state‐of‐the‐art Sr‐containing electrodes while completely suppressing Cr‐induced ...
Ji‐eun Won, Wooseok Lee, Jaehyun Seo, Dogeun Yoon, Ho‐Il Ji, HeeChan Kang, Jun Hyuk Kim, Hwitae Kim, Ji Wan Kim, Jongsup Hong, Kyung Joong Yoon   +10 more
wiley   +1 more source

Catalytic Hydrogen Combustion

The intermittency associated with renewable energy sources can be mitigated through the use of an energy carrier that can be produced and stored during periods of energy abundance. Hydrogen (H2), as a carbon-free energy carrier, possesses the highest mass energy density relative to other fuels, making it a promising candidate. The chemical energy of H2
openaire   +1 more source

Experimental Investigations of the Hydrogen Injectors on the Combustion Characteristics and Performance of a Hydrogen Internal Combustion Engine

Sustainability
Hydrogen is regarded as an ideal zero-carbon fuel for an internal combustion engine. However, the low mass flow rate of the hydrogen injector and the low volume heat value of the hydrogen strongly restrict the enhancement of the hydrogen engine performance.
Min Huang, Qinghe Luo, Baigang Sun, Shiwei Zhang, Kangda Wang, Lingzhi Bao, Qian Li, Xuelin Tang, Wei Deng   +8 more
openaire   +1 more source

Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications

Advanced Science, EarlyView.
Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li, Henghui Deng, Shiwei Yu, Jiawei Huang, Zehong Chen, Dawei Zhao, Chaoqun Zhang   +6 more
wiley   +1 more source

Hydrogen‐Bond Enabled Phosphite Based Intrinsic Flame‐Retardant Solid‐Solid Phase Change Materials Using Catalyst/Solvent‐Free Multi‐Component Reaction for Battery Thermal Management

Advanced Science, EarlyView.
The phosphite group endows intrinsic flame retardancy, while the P = O bond enhances intermolecular interactions to realize solid‐solid phase transition. Battery thermal management tests show the materials extend the safe working time of lithium‐ion batteries by 200%. Cone calorimeter tests indicate a 14s delay in ignition time, and reductions of 37.6%,
Changhui Liu, Guangyuan Liang, Yuanzheng Liu, Jiantang Gao, Zeyang Li, Lin Huang, Jiateng Zhao, Junbing Xiao, Xiaoxing Zhong, Jun (Joelle) Wang   +9 more
wiley   +1 more source