(Invited) High Performance Fe/N/C-Based ORR Electrocatalyst and Its Application in Alkaline Fuel Cell

2016 ◽  
Keyword(s):  
Fuel Cell ◽  
High Performance ◽  
Alkaline Fuel Cell

scholarly journals N, S and Transition-Metal Co-Doped Graphene Nanocomposites as High-Performance Catalyst for Glucose Oxidation in a Direct Glucose Alkaline Fuel Cell

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 202
Author(s):  
Yexin Dai ◽  
Jie Ding ◽  
Jingyu Li ◽  
Yang Li ◽  
Yanping Zong ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Active Sites ◽  
High Performance ◽  
Glucose Oxidation ◽  
Alkaline Fuel Cell ◽  
Blank Group ◽  
Graphene Nanocomposites ◽  
Doped Graphene ◽  
One Step ◽  
Hydrothermal Approach

In this work, reduced graphene oxide (rGO) nanocomposites doped with nitrogen (N), sulfur (S) and transitional metal (Ni, Co, Fe) were synthesized by using a simple one-step in-situ hydrothermal approach. Electrochemical characterization showed that rGO-NS-Ni was the most prominent catalyst for glucose oxidation. The current density of the direct glucose alkaline fuel cell (DGAFC) with rGO-NS-Ni as the anode catalyst reached 148.0 mA/cm2, which was 40.82% higher than the blank group. The DGAFC exhibited a maximum power density of 48 W/m2, which was more than 2.08 folds than that of blank group. The catalyst was further characterized by SEM, XPS and Raman. It was speculated that the boosted performance was due to the synergistic effect of N, S-doped rGO and the metallic redox couples, (Ni2+/Ni3+, Co2+/Co3+ and Fe2+/Fe3+), which created more active sites and accelerated electron transfer. This research can provide insights for the development of environmental benign catalysts and promote the application of the DGAFCs.

scholarly journals Anion Exchange Membrane Based on Interpenetrating Polymer Network with Ultrahigh Ion Conductivity and Excellent Stability for Alkaline Fuel Cell

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Lingping Zeng ◽  
Qian He ◽  
Yunchuan Liao ◽  
Shangyi Kuang ◽  
Jianchuan Wang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Ion Channel ◽  
Anion Exchange ◽  
High Performance ◽  
Polymer Network ◽  
Anion Exchange Membrane ◽  
Interpenetrating Polymer Network ◽  
Alkaline Fuel Cell ◽  
Channel Network ◽  
Exchange Membrane

A high-performance anion exchange membrane (AEM) is critical for the development of alkaline fuel cell. In this work, AEMs with an interpenetrating polymer network (IPN) are synthesized. An electron microscope clearly reveals a highly efficient “ion channel” network, which is constructed with a small amount of cation exchange groups. This specially designed ion channel leads to extraordinary hydroxide conductivity (e.g., 257.8 mS cm-1 at 80 °C) of IPN AEMs at moderate ion exchange capacity (IEC=1.75 mmol g−1), as well as excellent long-term alkaline stability at harsh condition which showed that 81% of original conductivity can be retained after a long time for 1248 hours. Moreover, a remarkable peak power density of 1.20 W cm-2 (0.1 MPa backpressure) with nonprecious metal (FeNx-CNTs) as oxygen reduction reaction (ORR) catalyst in a fuel cell test was achieved. This work offers a general strategy to prepare high-performance AEMs based on IPN structure design.

scholarly journals Shape-tuned, surface-active and support-free silver oxygen reduction electrocatalyst enabled high performance fully non-PGM alkaline fuel cell

RSC Advances ◽  
2021 ◽  
Vol 11 (40) ◽  
pp. 24872-24882
Author(s):  
P. Anandha Ganesh ◽  
A. N. Prakrthi ◽  
S. Selva Chandrasekaran ◽  
D. Jeyakumar
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction ◽  
High Performance ◽  
Cell Activity ◽  
Reduction Reaction ◽  
Alkaline Fuel Cell ◽  
Small Surface ◽  
Alkaline Membrane Fuel Cell ◽  
Surface Active ◽  
Alkaline Membrane

A fully non-PGM alkaline membrane fuel cell with “highest fuel cell activity” was achieved using a hierarchically shape-tuned, small, surface-active, support-free, worm-shaped nano-structured silver oxygen reduction reaction electro-catalyst.

scholarly journals A high performance direct borohydride fuel cell using bipolar interfaces and noble metal-free Ni-based anodes

2020 ◽  
Vol 8 (39) ◽  
pp. 20543-20552
Author(s):  
Guillaume Braesch ◽  
Zhongyang Wang ◽  
Shrihari Sankarasubramanian ◽  
Alexandr G. Oshchepkov ◽  
Antoine Bonnefont ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Fuel Cell ◽  
Energy Density ◽  
Sodium Borohydride ◽  
High Performance ◽  
High Energy ◽  
Power Source ◽  
High Energy Density ◽  
Alkaline Fuel Cell ◽  
Metal Free

Due to its unmatched theoretical voltage of 2.18 V, a direct alkaline fuel cell using sodium borohydride solution at the anode and hydrogen peroxide at the cathode represents a promising power source for high energy density applications.

scholarly journals Biosynthesized α-MnO2-based polyaniline binary composite as efficient bioanode catalyst for high-performance microbial fuel cell

All Life ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 541-568
Author(s):  
Yilkal Dessie ◽  
Sisay Tadesse ◽  
Rajalakshmanan Eswaramoorthy ◽  
Yeshaneh Adimasu
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
High Performance ◽  
Binary Composite

MOF-derived PtCo/Co3O4 nanocomposites in carbonaceous matrices as high-performance ORR electrocatalysts synthesized via Laser Ablation techniques

2021 ◽  
Author(s):  
Erick Leonar Ribeiro ◽  
Elijah M Davis ◽  
Mahshid Mokhtarnejad ◽  
Sheng Hu ◽  
Dibyendu Mukherjee ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Laser Ablation ◽  
Energy Conversion ◽  
High Performance ◽  
Sustainable Energy ◽  
Ablation Techniques ◽  
Global Energy ◽  
Cell Technology ◽  
Energy Demands ◽  
Rational Development

Rapidly expanding global energy demands due to fast-paced human-technology interfaces have propelled fuel cell technology as a sustainable energy-conversion alternative. Nonetheless, the rational development of such technology demands the engineering...

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