Enhanced Bifunctional Catalytic Activity of Cobalt Phosphide Flowers Anchored N‐Doped Reduced Graphene Oxide for Hydrogen and Oxygen Evolution

2020 ◽  
Vol 7 (15) ◽  
pp. 3319-3323
Author(s):  
Thazhe Veettil Vineesh ◽  
Usha Vijayakumar Anagha ◽  
Naduvile Purayil Dileep ◽  
Haritha Cheraparambil ◽  
Jyothish Nambeesan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Reduced Graphene Oxide ◽  
Oxygen Evolution ◽  
Cobalt Phosphide ◽  
Reduced Graphene

scholarly journals Electrochemical impacts of sheet-like hafnium phosphide and hafnium disulfide catalysts bonded with reduced graphene oxide sheets for bifunctional oxygen reactions in alkaline electrolytes

RSC Advances ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 2599-2607 ◽  
Author(s):  
Mayilvel Dinesh Meganathan ◽  
Taizhong Huang ◽  
Hengyi Fang ◽  
Jianfeng Mao ◽  
Guoxin Sun
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Oxygen Evolution ◽  
High Catalytic Activity ◽  
Oxygen Reduction Reactions ◽  
Reduced Graphene ◽  
Alkaline Electrolytes ◽  
Graphene Oxide Sheets

Sheet-like structured hafnium phosphide (HfP) and hafnium disulphide (HfS2) catalysts show high catalytic activity for both oxygen evolution and oxygen reduction reactions, which are determined by the compositional anion ions.

scholarly journals Synthesis of transition metal sulfide and reduced graphene oxide hybrids as efficient electrocatalysts for oxygen evolution reactions

2018 ◽  
Vol 5 (9) ◽  
pp. 180927 ◽  
Author(s):  
Yu-Rim Hong ◽  
Sungwook Mhin ◽  
Jiseok Kwon ◽  
Won-Sik Han ◽  
Taeseup Song ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Transition Metal ◽  
Reduced Graphene Oxide ◽  
Oxygen Evolution ◽  
Chemical Interaction ◽  
High Surface ◽  
Metal Sulfide ◽  
Volume Ratio ◽  
Reduced Graphene

The development of electrochemical devices for renewable energy depends to a large extent on fundamental improvements in catalysts for oxygen evolution reactions (OERs). OER activity of transition metal sulfides (TMSs) can be improved by compositing with highly conductive supports possessing a high surface-to-volume ratio, such as reduced graphene oxide (rGO). Herein we report on the relationship between synthetic conditions and the OER catalytic properties of TMSs and rGO (TMS–rGO) hybrids. Starting materials, reaction temperature and reaction time were controlled to synergistically boost the OER catalytic activity of TMS–rGO hybrids. Our results showed that (i) compared with sulfides, hydroxides are favourable as starting materials to produce the desired TMS–rGO hybrid nanostructure and (ii) high reaction temperatures and longer reaction times can increase physico-chemical interaction between TMSs and rGO supports, resulting in highly efficient OER catalytic activity.

3D Porous Nb2C MXene/Reduced Graphene Oxide Aerogel Coupled with NiFe Alloy Nanoparticles for Wearable Zn–Air Batteries

2021 ◽  
Author(s):  
Hang Lei ◽  
Shangjing Yang ◽  
Runquan Lei ◽  
Qing Zhong ◽  
Qixiang Wan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Reduced Graphene Oxide ◽  
Active Sites ◽  
Alloy Nanoparticles ◽  
Reduced Graphene ◽  
Reduced Graphene Oxide Aerogel ◽  
Graphene Oxide Aerogel ◽  
Catalytic Processes

Insufficient catalytic activity and self-restacking of 2D MXenes during catalytic processes would lead to limited number of active sites, sluggish ionic kinetics and poor durability, extremely restricting its application in...

Multiwalled carbon nanotube@reduced graphene oxide nanoribbon heterostructure: synthesis, intrinsic peroxidase-like catalytic activity, and its application in colorimetric biosensing

2015 ◽  
Vol 3 (8) ◽  
pp. 1624-1632 ◽  
Author(s):  
Jing Qian ◽  
Xingwang Yang ◽  
Zhenting Yang ◽  
Gangbing Zhu ◽  
Hanping Mao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Carbon Nanotube ◽  
Reduced Graphene Oxide ◽  
Multiwalled Carbon Nanotube ◽  
Core Shell ◽  
Multiwalled Carbon ◽  
Peroxidase Mimetic ◽  
Reduced Graphene ◽  
Colorimetric Biosensing

The MWCNT@rGONR core–shell heterostructure was proved to be a novel peroxidase mimetic and has been used for colorimetric biosensing of cholesterol.

Electrocatalytic study of a 1,10-phenanthroline–cobalt(ii) metal complex catalyst supported on reduced graphene oxide towards oxygen reduction reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (40) ◽  
pp. 33302-33307 ◽  
Author(s):  
Cancan Ren ◽  
Haibo Li ◽  
Rui Li ◽  
Shuling Xu ◽  
Denghu Wei ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Metal Complex ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduction Reaction ◽  
Complex Catalyst ◽  
Reduced Graphene ◽  
High Efficient

1,10-Phenanthroline–cobalt(ii) metal-complex supported on rGO exhibited a high efficient four-electron catalytic activity towards ORR.

Mussel-inspired construction of thermo-responsive double-hydrophilic diblock copolymers-decorated reduced graphene oxide as effective catalyst supports for highly dispersed superfine Pd nanoparticles

Nanoscale ◽  
2018 ◽  
Vol 10 (26) ◽  
pp. 12487-12496 ◽  
Author(s):  
Haichao Duan ◽  
Yu Yang ◽  
Jianhua Lü ◽  
Changli Lü
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Reduced Graphene Oxide ◽  
Diblock Copolymer ◽  
Diblock Copolymers ◽  
Pd Nanoparticles ◽  
Catalyst Supports ◽  
High Catalytic Activity ◽  
Reduced Graphene ◽  
Highly Dispersed

We report a facile, mussel-inspired construction of a thermo-responsive diblock copolymer-anchored rGO support for superfine PdNPs with high catalytic activity.

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