scholarly journals Advanced Electrocatalysts for the Oxygen Reduction Reaction in Energy Conversion Technologies

Joule ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 45-68 ◽  
Author(s):  
Xinlong Tian ◽  
Xue Feng Lu ◽  
Bao Yu Xia ◽  
Xiong Wen (David) Lou
Keyword(s):  
Oxygen Reduction Reaction ◽  
Energy Conversion ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Conversion Technologies

Hollow mesoporous carbon nanocages with Fe isolated single atomic site derived from MOF/polymer for highly efficient electrocatalytic oxygen reduction

2021 ◽  
Author(s):  
Kai Zhang ◽  
Bai Yang ◽  
Congcong Wang ◽  
Yixin Chen ◽  
Ying Liu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Energy Conversion ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Reduction Reaction ◽  
Atomic Site ◽  
Highly Efficient ◽  
Electrocatalytic Oxygen Reduction ◽  
Conversion Technologies

Exploring sustainable and highly activity electrocatalysts for the oxygen reduction reaction (ORR) is vital for the development and application of energy conversion technologies. Here, we prepared Fe isolated-single atomic-site (ISAs)...

scholarly journals Recent Advance on Polyaniline or Polypyrrole-Derived Electrocatalysts for Oxygen Reduction Reaction

Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1397 ◽  
Author(s):  
Zhankun Jiang ◽  
Jiemei Yu ◽  
Taizhong Huang ◽  
Min Sun
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Energy Conversion ◽  
Oxygen Reduction ◽  
Carbon Material ◽  
Reduction Reaction ◽  
Environmentally Benign ◽  
Cathodic Reaction ◽  
Electrochemical Devices ◽  
Shape Controlled

The fuel cell, as one of the most promising electrochemical devices, is sustainable, clean, and environmentally benign. The sluggish oxygen reduction reaction (ORR) is an important fuel cell cathodic reaction that decides the efficiency of the overall energy conversion. In order to improve ORR efficiency, many efficient catalysts have been developed, in which the N-doped material is most popular. Polyaniline and polypyrrole as common aromatic polymers containing nitrogen were widely applied in the N-doped material. The shape-controlled N-doped carbon material can be prepared from the pyrolysis of the polyaniline or polypyrrole, which is effective to catalyze the ORR. This review is focused on the recent advance of polyaniline or polypyrrole-based ORR electrocatalysts.

Highly dispersed Co nanoparticles decorated on a N-doped defective carbon nano-framework for a hybrid Na–air battery

2020 ◽  
Vol 49 (6) ◽  
pp. 1811-1821 ◽  
Author(s):  
Jingyi Zhu ◽  
Tao Qu ◽  
Fengmei Su ◽  
Yuqi Wu ◽  
Yao Kang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Energy Conversion ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Reduction Reaction ◽  
Highly Dispersed ◽  
Air Battery ◽  
Co Nanoparticles

Efficient and low-cost bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) are of vital importance in energy conversion.

scholarly journals Fe2O3 Embedded Nitrogen-doped Biomass Carbon as Electrocatalyst for the Oxygen Reduction Reaction

2021 ◽  
Vol 2079 (1) ◽  
pp. 012002
Author(s):  
Yanling Wu ◽  
Huiji Jiao ◽  
Mingqian Hou ◽  
Peng Zhang
Keyword(s):  
Oxygen Reduction Reaction ◽  
Energy Conversion ◽  
Oxygen Reduction ◽  
Active Sites ◽  
Carbon Materials ◽  
Low Cost ◽  
Reduction Reaction ◽  
Biomass Carbon ◽  
Pyrolysis Process ◽  
Nitrogen Doped

Abstract Catalyst for ORR is important in the field of energy conversion. Previous research has shown that nanoparticle-embedded into N-doped carbon materials are a good ORR candidates. Here, Fe2O3/N-doped biomass carbon (named Fe2O3/N-bio-C) ORR catalyst via a pyrolysis process of mixture from the Heme precursor and biomass material (named poplar flowers). The as-synthesized electrocatalyst of Fe2O3/N-bio-C exhibits good electroactivity due to the formation of Fe2O3 nanoparticle active sites and abundant N-containing groups. The work points the way to synthesize the low-cost Fe-based N-doped biomass carbon ORR catalysts.

Biomass in situ conversion to Fe single atomic sites coupled with Fe2O3 clusters embedded in porous carbons for the oxygen reduction reaction

2020 ◽  
Vol 8 (39) ◽  
pp. 20629-20636
Author(s):  
Ying Lei ◽  
Fuwen Yang ◽  
Huaming Xie ◽  
Yongpeng Lei ◽  
Xingyong Liu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Energy Conversion ◽  
Oxygen Reduction ◽  
Metal Clusters ◽  
Reduction Reaction ◽  
Superior Performance ◽  
Porous Carbons

Small metal clusters have received increasing attention due to their attractive and superior performance in electrocatalytic energy conversion.

scholarly journals Active site engineering of single-atom carbonaceous electrocatalysts for the oxygen reduction reaction

2021 ◽  
Author(s):  
Guangbo Chen ◽  
Haixia Zhong ◽  
Xinliang Feng
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Site ◽  
Reduction Reaction ◽  
Single Atom ◽  
Electrocatalytic Oxygen Reduction ◽  
Electrochemical Storage ◽  
Conversion Technologies ◽  
Co Doped

Electrocatalytic oxygen reduction reaction (ORR) is the vital process in the cathode of next-generation electrochemical storage and conversion technologies, such as, metal-air batteries and fuel cells. Single-metal-atom and nitrogen co-doped...

Ultrafine Fe nanoparticles embedded in N-doped carbon nanotubes derived from highly dispersed g-C3N4 nanofibers for oxygen reduction reaction

2021 ◽  
Author(s):  
Yue Ran ◽  
Li Quan ◽  
Jiayi Cui ◽  
Jianqiao Liu ◽  
Wei Lin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Energy Conversion ◽  
Oxygen Reduction ◽  
Noble Metal ◽  
Carbon Nitride ◽  
Reduction Reaction ◽  
Fe Nanoparticles ◽  
Highly Dispersed ◽  
Energy Conversion Devices

Exploring non-noble-metal electrocatalyst is vital and challenging for promoting the oxygen reduction reaction (ORR) in energy conversion devices. In this work, hydrolyzed graphitic carbon nitride (h-CN) wrapped Fe nanoparticles with...

scholarly journals Optimization Strategies of Preparation of Biomass-Derived Carbon Electrocatalyst for Boosting Oxygen Reduction Reaction: A Minireview

Catalysts ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1472
Author(s):  
Minhua Jiang ◽  
Xiaofang Yu ◽  
Haoqi Yang ◽  
Shuiliang Chen
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Performance ◽  
Scale Up ◽  
Chemical Properties ◽  
Cost Effective ◽  
Clean Energy ◽  
Reduction Reaction ◽  
Orr Kinetics ◽  
Conversion Technologies

Oxygen reduction reaction (ORR) has attracted considerable attention for clean energy conversion technologies to reduce traditional fossil fuel consumption and greenhouse gas emissions. Although platinum (Pt) metal is currently used as an electrocatalyst to accelerate sluggish ORR kinetics, the scarce resource and high cost still restrict its further scale-up applications. In this regard, biomass-derived carbon electrocatalysts have been widely adopted for ORR electrocatalysis in recent years owing to their tunable physical/chemical properties and cost-effective precursors. In this minireview, recent advances of the optimization strategies in biomass-derived carbon electrocatalysts towards ORR have been summarized, mainly focusing on the optimization of pore structure and active site. Besides, some current challenges and future perspectives of biomass-derived carbon as high-performance electrocatalysts for ORR have been also discussed in detail. Hopefully, this minireview will afford a guideline for better design of biomass-derived carbon electrocatalysts for ORR-related applications.

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