Results 111 to 120 of about 16,378 (307)

Comparative performance of PtRu/C catalysts synthesized by different methods for direct methanol fuel cells under various operating conditions

Frontiers in Nanotechnology
This work presents a comparative study of three synthesis methods for PtRu/C catalysts for use in polymer electrolyte fuel cells, investigating their activity in methanol oxidation.
Elson Almeida De Souza, Rudyere Nascimento Silva, Daniel A. Gonçalves, Leandro Aparecido Pocrifka, Raimundo Ribeiro Passos   +4 more
doaj   +1 more source

Self-Healing Sulfonated Poly(ether ether ketone)-Based Polymer Electrolyte Membrane for Direct Methanol Fuel Cells: Effect of Solvent Content. [PDF]

Polymers (Basel), 2023
Tai MH, Thiam HS, Tee SF, Lim YS, Saw LH, Lai SO.   +5 more
europepmc   +1 more source

Compact Direct Alcohol Fuel Cells for Portable Power Sources

, 2009
Fuel cells, as a kind of highly efficient and environment-friendly energy conversion system, have been considered as alternative powers sources for transportation and electric devices.
孙公权
core  

Reconstruction of Nickel Chalcogenide Induced Ruthenium Nanoparticles Embedding for Oxygen Evolution: Mechanism Switching Enables Enhanced Catalytic Activity

Advanced Science, EarlyView.
Ru nanoparticles supported nickel chalcogens (Ru/NiX, X = S, Se), which enable fast electrooxidation to form an adaptively Ru embedding structure, featured by the compressed Ru─O─Ni bridge bonds at the Ru/NiOOH interface. On the one hand, Ru nanoparticles have a high affinity for capturing the OH−, consequently increasing the *O radical coverage.
Yuewen Wu, Mingpeng Chen, Xinqi Chen, Huachuan Sun, Tong Zhou, Yun Chen, Dequan Li, Jin Zhang, Feng Liu, Hao Cui, Qingju Liu   +10 more
wiley   +1 more source

Potential of 3D Hierarchical Porous TiO₂-Graphene Aerogel (TiO₂-GA) as Electrocatalyst Support for Direct Methanol Fuel Cells. [PDF]

Nanomaterials (Basel), 2023
Osman SH, Kamarudin SK, Basri S, Karim NA.   +3 more
europepmc   +1 more source

Atomistic and molecular simulations of novel acid-base blend membranes for direct methanol fuel cells

, 2014
textOne of the main challenges to transform highly useful Direct Methanol Fuel Cells (DMFC) into a commercially viable technology has been to develop a low cost polymer electrolyte membrane (PEM) with high proton conductivity, high stability and low ...
Mahajan, Chetan Vasant
core  

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng, Zhicheng Wang, Xin Zhou, Shuya Wang, Xiaojing Shi, Tingli Xiong, Ruishi Li, Yuting Lin, Zhen Chen, Jiawen Wei, Fei Li, Jinwen Ge, Kelong Ai, Chong Liu, Guiming Deng   +14 more
wiley   +1 more source

Development and understanding of new membranes based on aromatic polymers and heterocycles for fuel cells [PDF]

, 2009
textDirect methanol fuel cells (DMFC) are appealing as a power source for portable devices as they do not require recharging with an electrical outlet.
Li, Wen
core  

Electrocatalytic Coupling Conversion of Methane by Dual‐Site Control in Nickel Oxyhydroxide

Advanced Science, EarlyView.
Electrocatalytic coupling conversion of methane (CH4) is accomplished on the nickel oxyhydroxide (NiOOH), wherein the Ni─O dual‐site is triggered via the proper electronic interaction, synergistically promoting the C─H activation and C─C formation, enabling a selective and efficient C2 product generation route under ambient conditions. ABSTRACT Methane
Kailong Lu, Yangshen Chen, Junhao Wang, Yi Zhang, Sunyang He, Huimin Xu, Hui Liu, Jiao Deng   +7 more
wiley   +1 more source

Pengaruh Temperatur Terhadap Kinerja Sel Pembangkit Listrik Direct Methanol (DMFC)

Jurnal Elkomika
ABSTRAK Penelitian ini bertujuan menjelaskan prinsip-prinsip termodinamika-elektrokimia pada sel pembangkit listrik Direct Methanol Fuel Cell (DMFC).
MAYA RAMADIANTI MUSADI, YUNIA ROSSA, GILANG RAMADHAN SURYAMAN   +2 more
doaj   +1 more source