Atomic Fe–N5 Catalytic Site Embedded in N-doped Carbon as Highly Efficient Oxygen Electrocatalyst for Zinc–Air Batteries

2021 ◽  
Author(s):  
Huinian Zhang ◽  
Suping Jia ◽  
Xiaolin Shi ◽  
Ziyuan Li ◽  
Bin Liu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Sites ◽  
Reduction Reaction ◽  
Catalytic Site ◽  
Highly Efficient ◽  
Zinc Air Batteries

Atomically dispersed transition metal–Nx–C-based catalysts with abundant Fe–Nx active sites have demonstrated good prospects for oxygen-reduction reaction (ORR) and are promising alternatives to Pt-based electrocatalysts. However, further improving their ORR...

Highly Efficient Low-Pt-Based Electrocatalysts with Pt Single-Atom Active Sites for Oxygen Reduction Reaction

2020 ◽  
Vol MA2020-01 (38) ◽  
pp. 1688-1688
Author(s):  
Jing Liu ◽  
JeongHan Roh ◽  
DongHoon Song ◽  
Junu Bak ◽  
Hyo-Jong Kim ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Sites ◽  
Reduction Reaction ◽  
Single Atom ◽  
Highly Efficient

Subnanometer iron clusters confined in a porous carbon matrix for highly efficient zinc–air batteries

2020 ◽  
Vol 5 (2) ◽  
pp. 359-365 ◽  
Author(s):  
Xin Wu ◽  
Juncai Dong ◽  
Mei Qiu ◽  
Yang Li ◽  
Yongfan Zhang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Three Dimensional ◽  
Carbon Matrix ◽  
Reduction Reaction ◽  
Iron Clusters ◽  
Highly Efficient ◽  
Zinc Air Batteries

We describe a facile synthetic protocol to realize the decoration of Fe coordinates at the subnanometer scale into a three-dimensional porous carbon matrix, which great promotes the oxygen reduction reaction compared with isolated Fe atoms.

Chemistry of Multitudinous Active Sites for Oxygen Reduction Reaction in Transition Metal–Nitrogen–Carbon Electrocatalysts

2015 ◽  
Vol 119 (46) ◽  
pp. 25917-25928 ◽  
Author(s):  
Kateryna Artyushkova ◽  
Alexey Serov ◽  
Santiago Rojas-Carbonell ◽  
Plamen Atanassov
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Sites ◽  
Reduction Reaction

Template-free synthesis of polyacrylonitrile-derived porous carbon nanoballs on graphene for efficient oxygen reduction in zinc–air batteries

2021 ◽  
Vol 9 (15) ◽  
pp. 9644-9654
Author(s):  
Halima Begum ◽  
Mohammad Shamsuddin Ahmed ◽  
Seunghun Jung
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Active Sites ◽  
Reduction Reaction ◽  
Metal Free ◽  
Template Free ◽  
Energy Conversion Devices ◽  
Zinc Air Batteries

Introducing abundant active sites and improving their activity are two critical considerations for designing metal-free nitrogenous electrocatalysts for the oxygen reduction reaction (ORR) in energy conversion devices such as metal–air batteries and fuel cells.

Strongly coupled ultrasmall-Fe7C3/N-doped porous carbon hybrids for highly efficient Zn–air batteries

2019 ◽  
Vol 55 (39) ◽  
pp. 5651-5654 ◽  
Author(s):  
Lulu Chen ◽  
Yelong Zhang ◽  
Xiangjian Liu ◽  
Ling Long ◽  
Siyu Wang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Reduction Reaction ◽  
Simple Method ◽  
Strongly Coupled ◽  
Highly Efficient ◽  
Zinc Air Batteries

This report presents a simple method to produce an ultrasmall-Fe7C3/N-doped porous carbon hybrid (u-Fe7C3@NC) as an excellent catalyst for oxygen reduction reaction and zinc–air batteries.

Mechanism of Oxygen Reduction Reaction on Transition Metal–Nitrogen–Carbon Catalysts: Establishing the Role of Nitrogen-containing Active Sites

2018 ◽  
Vol 1 (11) ◽  
pp. 5948-5953 ◽  
Author(s):  
Yechuan Chen ◽  
Ivana Matanovic ◽  
Elizabeth Weiler ◽  
Plamen Atanassov ◽  
Kateryna Artyushkova
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Sites ◽  
Reduction Reaction ◽  
Carbon Catalysts

scholarly journals First-row Transition Metal Antimonates for the Oxygen Reduction Reaction

2021 ◽  
Author(s):  
G. T. Kasun Kalhara Gunasooriya ◽  
Melissa E. Kreider ◽  
Yunzhi Liu ◽  
José A. Zamora Zeledón ◽  
Zhenbin Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Precious Metal ◽  
Active Sites ◽  
Reduction Reaction ◽  
Oxygen Binding ◽  
Precious Metal Catalysts ◽  
Mass Activity

The development of inexpensive and abundant catalysts with high activity, selectivity, and stability for the oxygen reduction reaction (ORR) is imperative for the widespread implementation of fuel cell devices. Herein, we present a combined theoretical-experimental approach to discover and design first-row transition metal antimonates as promising electrocatalytic materials for the ORR. Theoretically, we identify first-row transition metal antimonates – MSb2O6, where M = Mn, Fe, Co, and Ni – as non-precious metal catalysts with promising oxygen binding energetics, conductivity, thermodynamic phase stability and aqueous stability. Among the considered antimonates, MnSb2O6 shows the highest theoretical ORR activity based on the 4e− ORR kinetic volcano. Experimentally, nanoparticulate transition metal antimonate catalysts are found to have a minimum of a 2.5-fold enhancement in intrinsic mass activity (on transition metal mass basis) relative to the corresponding transition metal oxide at 0.7 V vs RHE in 0.1 M KOH. MnSb2O6 is the most active catalyst under these conditions, with a 3.5-fold enhancement on a per Mn mass activity basis and 25-fold enhancement on a surface area basis over its antimony-free counterpart. Electrocatalytic and material stability are demonstrated over a 5 h chronopotentiometry experiment in the stability window identified by Pourbaix analysis. This study further highlights the stable and electrically conductive antimonate structure as a promising framework to tune the activity and selectivity of non-precious metal oxide active sites for ORR catalysis.

scholarly journals Correction: Isolated Fe and Co dual active sites on nitrogen-doped carbon for a highly efficient oxygen reduction reaction

2018 ◽  
Vol 54 (38) ◽  
pp. 4882-4882 ◽  
Author(s):  
Diyang Zhang ◽  
Wenxing Chen ◽  
Zhi Li ◽  
Yuanjun Chen ◽  
Lirong Zheng ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Sites ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Nitrogen Doped Carbon

Correction for ‘Isolated Fe and Co dual active sites on nitrogen-doped carbon for a highly efficient oxygen reduction reaction’ by Diyang Zhang et al., Chem. Commun., 2018, DOI: 10.1039/c8cc00988k.

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