Nitrogen- and sulfur-doped carbon nanoplatelets via thermal annealing of alkaline lignin with urea as efficient electrocatalysts for oxygen reduction reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104183-104192 ◽  
Author(s):  
Xianlei Zhang ◽  
Dingling Yu ◽  
Yaqing Zhang ◽  
Wenhui Guo ◽  
Xiuxiu Ma ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Thermal Annealing ◽  
Reduction Reaction ◽  
Operational Stability ◽  
Alkaline Media ◽  
Pyrolysis Method ◽  
One Step ◽  
Orr Activity

Novel N–S–C hybrids were synthesized by a facile one-step pyrolysis method, in which the obtained N–S–C 900 was a robust catalyst with enhanced ORR activity and excellent operational stability in alkaline media, superior to the Pt/C catalyst.

Diagnosis of the measurement inconsistencies of carbon-based electrocatalysts for the oxygen reduction reaction in alkaline media

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1571-1580 ◽  
Author(s):  
Dongyoon Shin ◽  
Beomgyun Jeong ◽  
Myounghoon Choun ◽  
Joey D. Ocon ◽  
Jaeyoung Lee
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Testing Methodology ◽  
Orr Activity ◽  
Carbon Based

An optimal catalyst testing methodology that could allow precise benchmarking to obtain standardized ORR activity is put forward.

One step synthesis of carbon-supported Ag/MnyOx composites for oxygen reduction reaction in alkaline media

2011 ◽  
Vol 104 (3-4) ◽  
pp. 337-345 ◽  
Author(s):  
Qiwen Tang ◽  
Luhua Jiang ◽  
Jing Qi ◽  
Qian Jiang ◽  
Suli Wang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
One Step

Tunable ternary (P, S, N)-doped graphene as an efficient electrocatalyst for oxygen reduction reaction in an alkaline medium

RSC Advances ◽  
2015 ◽  
Vol 5 (105) ◽  
pp. 86746-86753 ◽  
Author(s):  
Yishu Wang ◽  
Bowen Zhang ◽  
Minghui Xu ◽  
Xingquan He
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Low Cost ◽  
Reduction Reaction ◽  
Efficient Catalyst ◽  
Pyrolysis Method ◽  
High Efficient ◽  
Doped Graphene ◽  
One Step ◽  
Nitrogen Phosphorus

A novel nitrogen, phosphorus and sulfur ternary-doped graphene (PSNG) was synthesized by a one-step pyrolysis method, which was used as a low-cost and high-efficient catalyst for the oxygen reduction reaction.

Effect of the N content of Fe/N/graphene catalysts for the oxygen reduction reaction in alkaline media

2015 ◽  
Vol 3 (48) ◽  
pp. 24487-24494 ◽  
Author(s):  
Carlota Domínguez ◽  
F. J. Pérez-Alonso ◽  
Mohamed Abdel Salam ◽  
Shaeel A. Al-Thabaiti ◽  
Miguel A. Peña ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
N Content ◽  
Orr Activity

The ORR activity of Fe/N/G is a balance between the N-content and BET area.

One-step synthesis of a macroporous Cu–g/C3N4 nanofiber electrocatalyst for efficient oxygen reduction reaction

2020 ◽  
Vol 56 (90) ◽  
pp. 14087-14090 ◽  
Author(s):  
Ying Wang ◽  
Yuanyuan Zhang ◽  
Jianhua Yan ◽  
Jianyong Yu ◽  
Bin Ding
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Synthesis Method ◽  
Reduction Reaction ◽  
One Step ◽  
Orr Activity

A new kind of macroporous Cu–g/C3N4 nanofiber catalyst with stable ORR activity was fabricated using a one-step synthesis method.

scholarly journals Hydrated FePO4 nanoparticles supported on P-doped RGO show enhanced ORR activity compared to their dehydrated form in an alkaline medium

RSC Advances ◽  
2019 ◽  
Vol 9 (42) ◽  
pp. 24654-24658 ◽  
Author(s):  
Zubair Ahmed ◽  
Ritu Rai ◽  
Rajinder Kumar ◽  
Takahiro Maruyama ◽  
Vivek Bagchi
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Alkaline Medium ◽  
Reduction Reaction ◽  
Hydrothermal Growth ◽  
Reduced Graphene ◽  
One Step ◽  
Orr Activity

One-step hydrothermal growth of FePO4 nanoparticles (15–25 nm) uniformly decorated on the P-doped reduced graphene oxide (PRGO) was studied for oxygen reduction reaction (ORR) activity.

scholarly journals Unveiling the high-activity origin of single-atom iron catalysts for oxygen reduction reaction

2018 ◽  
Vol 115 (26) ◽  
pp. 6626-6631 ◽  
Author(s):  
Liu Yang ◽  
Daojian Cheng ◽  
Haoxiang Xu ◽  
Xiaofei Zeng ◽  
Xin Wan ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Density Functional ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Alkaline Media ◽  
Single Atom ◽  
Iron Catalysts ◽  
Grand Challenge ◽  
Orr Activity

It is still a grand challenge to develop a highly efficient nonprecious-metal electrocatalyst to replace the Pt-based catalysts for oxygen reduction reaction (ORR). Here, we propose a surfactant-assisted method to synthesize single-atom iron catalysts (SA-Fe/NG). The half-wave potential of SA-Fe/NG is only 30 mV less than 20% Pt/C in acidic medium, while it is 30 mV superior to 20% Pt/C in alkaline medium. Moreover, SA-Fe/NG shows extremely high stability with only 12 mV and 15 mV negative shifts after 5,000 cycles in acidic and alkaline media, respectively. Impressively, the SA-Fe/NG-based acidic proton exchange membrane fuel cell (PEMFC) exhibits a high power density of 823 mW cm−2. Combining experimental results and density-functional theory (DFT) calculations, we further reveal that the origin of high-ORR activity of SA-Fe/NG is from the Fe-pyrrolic-N species, because such molecular incorporation is the key, leading to the active site increase in an order of magnitude which successfully clarifies the bottleneck puzzle of why a small amount of iron in the SA-Fe catalysts can exhibit extremely superior ORR activity.

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