Chitin-derived porous carbon loaded with Co, N and S with enhanced performance towards electrocatalytic oxygen reduction, oxygen evolution, and hydrogen evolution reactions

2019 ◽  
Vol 304 ◽  
pp. 350-359 ◽  
Author(s):  
Jiaxiang Chen ◽  
Lei Qiu ◽  
Zheling Li ◽  
Guanhui Gao ◽  
Wenhua Zhong ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Porous Carbon ◽  
Electrocatalytic Oxygen Reduction ◽  
Hydrogen Evolution Reactions

scholarly journals Nitrogen-Doped Porous Carbon Derived from Biomass Used as Trifunctional Electrocatalyst toward Oxygen Reduction, Oxygen Evolution and Hydrogen Evolution Reactions

Nanomaterials ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 76 ◽  
Author(s):  
Chinnusamy Sathiskumar ◽  
Shanmugam Ramakrishnan ◽  
Mohanraj Vinothkannan ◽  
Ae Rhan Kim ◽  
Srinivasan Karthikeyan ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Porous Carbon ◽  
Photoelectron Spectroscopy ◽  
Energy Storage And Conversion ◽  
X Ray ◽  
Metal Free ◽  
Hydrogen Evolution Reactions

Tremendous developments in energy storage and conversion technologies urges researchers to develop inexpensive, greatly efficient, durable and metal-free electrocatalysts for tri-functional electrochemical reactions, namely oxygen reduction reactions (ORRs), oxygen evolution reactions (OERs) and hydrogen evolution reactions (HERs). In these regards, this present study focuses upon the synthesis of porous carbon (PC) or N-doped porous carbon (N-PC) acquired from golden shower pods biomass (GSB) via solvent-free synthesis. Raman spectroscopy, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) studies confirmed the doping of nitrogen in N-PC. In addition, morphological analysis via field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) provide evidence of the sheet-like porous structure of N-PC. ORR results from N-PC show the four-electron pathway (average n = 3.6) for ORRs with a Tafel slope of 86 mV dec−1 and a half-wave potential of 0.76 V. For OERs and HERs, N-PC@Ni shows better overpotential values of 314 and 179 mV at 10 mA cm−2, and its corresponding Tafel slopes are 132 and 98 mV dec−1, respectively. The chronopotentiometry curve of N-PC@Ni reveals better stability toward OER and HER at 50 mA cm−2 for 8 h. These consequences provide new pathways to fabricate efficient electrocatalysts of metal-free heteroatom-doped porous carbon from bio-waste/biomass for energy application in water splitting and metal air batteries.

A universal route to N-coordinated metals anchored on porous carbon nanosheets for highly efficient oxygen electrochemistry

2019 ◽  
Vol 7 (22) ◽  
pp. 13591-13601 ◽  
Author(s):  
Jin-Tao Ren ◽  
Zhong-Yong Yuan
Keyword(s):  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Porous Carbon ◽  
Carbon Nanosheets ◽  
Highly Efficient ◽  
Electrocatalytic Oxygen Reduction ◽  
Highly Porous ◽  
Oxygen Electrochemistry

Highly porous carbon nanosheets with N-coordinated metals are rationally developed and show outstanding electrocatalytic oxygen reduction and oxygen evolution performance.

MOF-derived electrocatalysts for oxygen reduction, oxygen evolution and hydrogen evolution reactions

2020 ◽  
Vol 49 (5) ◽  
pp. 1414-1448 ◽  
Author(s):  
Hao-Fan Wang ◽  
Liyu Chen ◽  
Huan Pang ◽  
Stefan Kaskel ◽  
Qiang Xu
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Composition Design ◽  
Hydrogen Evolution Reactions ◽  
Carbon Based

The morphology and composition design of MOF-derived carbon-based materials and their applications for electrocatalytic ORR, OER and HER are reviewed.

Metallic single-atoms confined in carbon nanomaterials for the electrocatalysis of oxygen reduction, oxygen evolution, and hydrogen evolution reactions

2020 ◽  
Vol 10 (19) ◽  
pp. 6420-6448 ◽  
Author(s):  
Mohd. Khalid ◽  
Prerna A. Bhardwaj ◽  
Ana M. B. Honorato ◽  
Hamilton Varela
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Carbon Nanomaterials ◽  
Review Article ◽  
Single Atom ◽  
Single Atoms ◽  
Recent Advances ◽  
Hydrogen Evolution Reactions

Recent advances of single-atom-based carbon nanomaterials for the ORR, OER, HER, and bifunctional electrocatalysis are covered in this review article.

Electrochemistry of layered GaSe and GeS: applications to ORR, OER and HER

2016 ◽  
Vol 18 (3) ◽  
pp. 1699-1711 ◽  
Author(s):  
Shu Min Tan ◽  
Chun Kiang Chua ◽  
David Sedmidubský ◽  
Zdenĕk Sofer ◽  
Martin Pumera
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Electrochemical Sensing ◽  
Metal Chalcogenides ◽  
Hydrogen Evolution Reactions

The study of the inherent electrochemistry of layered metal chalcogenides, GaSe and GeS, was performed. In particular, their impact towards the electrochemical sensing of redox probes as well as catalysis of oxygen reduction, oxygen evolution and hydrogen evolution reactions was examined.

scholarly journals Heteroatom-doped nanoporous carbon from recyclable Pueraria lobata and its dual activities for oxygen reduction and hydrogen evolution reactions

RSC Advances ◽  
2018 ◽  
Vol 8 (43) ◽  
pp. 24392-24398
Author(s):  
Wen-Chao Lu ◽  
Zi-Chun Zhu ◽  
Bei-Hua Hou ◽  
Hai-Xia Zhang ◽  
Min-Ji Liao ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Porous Carbon ◽  
Nanoporous Carbon ◽  
Pueraria Lobata ◽  
Carbon Sample ◽  
Hydrogen Evolution Reactions

The bulk preparation of an N, P and Fe Tri-doped nano-porous carbon sample using recyclable Pueraria powder, which exhibits dual activities.

Sign in / Sign up

Export Citation Format

Share Document