Results 61 to 70 of about 77,682 (299)

The Entrance Effect of Pin Type Flow Channel on Direct Methanol Fuel Cells [PDF]

[[abstract]]This research alters the traditional single inlet/outlet opening of the pin type flow channel of direct methanol fuel cells (DMFCs). Multi-inlet/outlet openings are designed with the aim to distribute the methanol solution evenly and ...
[[corresponding]]Chen, T.-Y., Chen, T.-Y.   +1 more
core   +1 more source

Stoma‐Shell Nanoarchitecture for Enhanced Plasma Confinement Catalysis in Synthesis of Ethanol from CO2

Advanced Functional Materials, EarlyView.
High‐energy electron impact in plasma catalysis often causes excessive dissociation of active intermediates, limiting C2+ product selectivity. To address this challenge, a bio‐inspired stoma‐shell nanoarchitecture is designed to decouple electron impact from catalytic reaction zones.
Nan Zou, Zhiliang Dong, Tsun‐Kong Sham, Xiaonian Li, Ying Zheng, Ting Qiu   +5 more
wiley   +1 more source

A Direct DME High Temperature PEM Fuel Cell [PDF]

, 2012
Dimethyl ether (DME) has been identified as an alternative to methanol for use in direct fuel cells. It combines the advantages of hydrogen in terms of pumpless fuel delivery and high energy density like methanol, but without the toxicity of the latter ...
Bjerrum, Niels, Cleemann, Lars Nilausen, Jensen, Jens Oluf, Li, Qingfeng, Pan, Chao, Steenberg, T., Vassiliev, Anton   +6 more
core  

Self‐Refreshing Bi‐Based Active Sites for Efficient and Durable Electrochemical CO2 Reduction

Advanced Functional Materials, EarlyView.
A self‐refreshing Bi‐based catalyst is developed through the fabrication of a novel basic bismuth nitrate pre‐catalyst, which exhibits differential active sites of Bi2O2CO3 at low potentials and metallic Bi phases at high potentials, self‐repairing capability, and thus wide‐potential‐window efficiency and ultralong durability toward electrochemical CO2
Yuxuan Xiao, Xiaoling Lai, Jinxian Feng, Ziwen Feng, Wendi Zhang, Lun Li, Weng Fai IP, Hui Pan   +7 more
wiley   +1 more source

Increasing Fuel Efficiency of Direct Methanol Fuel Cell Systems with Feedforward Control of the Operating Concentration

Energies, 2015
Most of the R&D on fuel cells for portable applications concentrates on increasing efficiencies and energy densities to compete with other energy storage devices, especially batteries.
Youngseung Na, Federico Zenith, Ulrike Krewer   +2 more
doaj   +1 more source

Accelerated Discovery of High Performance Ni3S4/Ni3Mo HER Catalysts via Bayesian Optimization

Advanced Functional Materials, EarlyView.
Integrated workflow accelerates the catalyst discovery of hydrogen evolution reaction via Bayesian optimization. An experiment‐trained surrogate model proposes synthesis conditions, guiding iterative refinement using electrochemical performance metrics.
Namuersaihan Namuersaihan, Zhiqiang Zhao, Oliver J. Conquest, Ying Shu, Haoyue Sun, Chunjing Su, Qi Cheng, Aloysius Soon, Catherine Stampfl, Jun Huang   +9 more
wiley   +1 more source

Rich-grain-boundary PtRuNi with network structure as efficient catalysts for methanol oxidation reaction

International Journal of Electrochemical Science, 2019
Fabricating a network structure is an efficient way to increase the electrocatalytic activity of a catalyst. In this study, a network-like structure of PtRuNi with rich grain boundaries characterized via scanning electron microscopy and transmission ...
Zi-ning Wang, Shu-hui Huo, Peng-xin Zhou
doaj   +1 more source

Micro-electroforming metallic bipolar electrodes for mini-DMFC stacks [PDF]

, 2008
This paper describes the development of metallic bipolar plate fabrication using micro-electroforming process for mini-DMFC (direct methanol fuel cell) stacks.
Lee, J. -H., Shyu, R. F., Yang, H.
core   +1 more source

Metal–Organic Frameworks for Gaseous Pollutant Management: From Capture to Neutralization and Reutilization

Advanced Functional Materials, EarlyView.
This review maps how MOFs can manage hazardous gases by combining adsorption, neutralization, and reutilization, enabling sustainable air‐pollution control. Covering chemical warfare agent simulants, SO2, NOx, NH3, H2S, and volatile organic compounds, it highlights structure‐guided strategies that boost selectivity, water tolerance, and cycling ...
Yuanmeng Tian, Zeyu Tao, Kaikai Ma, Xiaoliang Wang, Bo Yu, Yiu Wan Yip, Zhijie Chen, Jin Shang, Bin Fei   +8 more
wiley   +1 more source

Effect of Vibration on Open-Cathode Direct Methanol Fuel Cell Stack Performance

Physchem
This study investigates the impact of vibration frequency on the performance of a 10-cell open-cathode direct methanol fuel cell (OC-DMFC) stack. Experiments were conducted using three different vibration frequencies (15, 30, and 60 Hz) and compared ...
Selahattin Celik, Gamze Atalmis Sari, Mikail Yagiz, Hasan Özcan, Bahman Amini Horri   +4 more
doaj   +1 more source