Performance of direct formic acid fuel cell using transition metal‐nitrogen‐doped carbon nanotubes as cathode catalysts

2019 ◽  
Author(s):  
Fahimah Abd Lah Halim ◽  
Takuya Tsujiguchi ◽  
Yugo Osaka ◽  
Akio Kodama
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cell ◽  
Transition Metal ◽  
Formic Acid ◽  
Cathode Catalysts ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Trapping and sensing of hazardous insecticides by chemically modified single walled carbon nanotubes

2017 ◽  
Vol 19 (35) ◽  
pp. 24059-24066 ◽  
Author(s):  
Arkamita Bandyopadhyay ◽  
Dibyajyoti Ghosh ◽  
Swapan K. Pati
Keyword(s):  
Carbon Nanotubes ◽  
Transition Metal ◽  
Computational Study ◽  
Single Walled Carbon Nanotubes ◽  
Ambient Condition ◽  
Nitrogen Doped ◽  
Chemically Modified ◽  
Nitrogen Doped Carbon ◽  
Walled Carbon Nanotubes ◽  
Incorporated Nitrogen

Computational study demonstrates transition metal incorporated nitrogen doped carbon nanotubes can efficiently trap various harmful insecticides at ambient condition.

scholarly journals MOF Derived Catalysts for Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cell

2018 ◽  
Vol 778 ◽  
pp. 275-282
Author(s):  
Noaman Khan ◽  
Saim Saher ◽  
Xuan Shi ◽  
Muhammad Noman ◽  
Mujahid Wasim Durani ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Membrane Electrode Assembly ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Membrane Electrode ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
Exchange Membrane

Highly porous ZIF-67 (Zeolitic imidazole framework) has a conductive crystalline metal organic framework (MOF) structure which was served as a precursor and template for the preparation of nitrogen-doped carbon nanotubes (NCNTs) electrocatalysts. As a first step, the chloroplatinic acid, a platinum (Pt) precursor was infiltrated in ZIF-67 with a precise amount to obtain 0.12 mg.cm-2 Pt loading. Later, the infiltrated structure was calcined at 700°C in Ar:H2 (90:10 vol%) gas mixture. Multi-walled nitrogen-doped carbon nanotubes were grown on the surface of ZIF-67 crystals following thermal activation at 700°C. The resulting PtCo-NCNTs electrocatalysts were deposited on Nafion-212 solid electrolyte membrane by spray technique to study the oxygen reduction reaction (ORR) in the presence of H2/O2 gases in a temperature range of 50-70°C. The present study elucidates the performance of nitrogen-doped carbon nanotubes ORR electrocatalysts derived from ZIF-67 and the effects of membrane electrode assembly (MEA) steaming on the performance of proton exchange membrane fuel cell (PEMFC) employing PtCo-NCNTs as ORR electrocatalysts. We observed that the peak power density at 70°C was 450 mW/cm2 for steamed membrane electrode assembly (MEA) compared to 392 mW/cm2 for an identical MEA without steaming.

Seeded growth of branched iron–nitrogen-doped carbon nanotubes as a high performance and durable non-precious fuel cell cathode

Carbon ◽  
2020 ◽  
Vol 162 ◽  
pp. 300-307 ◽  
Author(s):  
Dongsheng Xia ◽  
Fei Tang ◽  
Xiaozhang Yao ◽  
Yinping Wei ◽  
Yuefei Cui ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cell ◽  
High Performance ◽  
Seeded Growth ◽  
Nitrogen Doped ◽  
Fuel Cell Cathode ◽  
Nitrogen Doped Carbon ◽  
Cell Cathode
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