Structural, Electronic and Electrocatalytic Evaluation of Spinel Transition Metal Sulfide Supported Reduced Graphene Oxide

2022 ◽  
Author(s):  
Santhosh Kumar Ramasamy ◽  
Ramakrishnan S ◽  
Sampath Prabhakaran ◽  
Ae Kim ◽  
Ranjith Kumar Dharman ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Production ◽  
Transition Metal ◽  
Reduced Graphene Oxide ◽  
Metal Sulfide ◽  
Water Electrolysis ◽  
Vital Role ◽  
Transition Metal Sulfide ◽  
Highly Active ◽  
Reduced Graphene

Development of highly active and durable non-precious spinel transition metal sulfide (STMS)-based electrocatalysts plays a vital role in increasing the efficiency of hydrogen production via water electrolysis. Herein, we have...

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.

scholarly journals Mixed Zinc/Manganese on Highly Reduced Graphene Oxide: A Highly Active Nanocomposite Catalyst for Aerial Oxidation of Benzylic Alcohols

Catalysts ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 391 ◽  
Author(s):  
Mohamed Assal ◽  
Mohammed Shaik ◽  
Mufsir Kuniyil ◽  
Mujeeb Khan ◽  
Abdulrahman Alzahrani ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Benzylic Alcohols ◽  
Highly Active ◽  
Reduced Graphene ◽  
Nanocomposite Catalyst ◽  
Aerial Oxidation

Ultrasound assisted synthesis of reduced graphene oxide (rGO) supported InVO4-TiO2 nanocomposite for efficient hydrogen production

2019 ◽  
Vol 53 ◽  
pp. 1-10 ◽  
Author(s):  
Hafeez Yusuf Hafeez ◽  
Sandeep Kumar Lakhera ◽  
Muthupandian Ashokkumar ◽  
Bernaurdshaw Neppolian
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Production ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Ultrasound Assisted

Facile construction of ternary CuFe2O4-TiO2 nanocomposite supported reduced graphene oxide (rGO) photocatalysts for the efficient hydrogen production

2018 ◽  
Vol 449 ◽  
pp. 772-779 ◽  
Author(s):  
Hafeez Yusuf Hafeez ◽  
Sandeep Kumar Lakhera ◽  
Peramaiah Karthik ◽  
Masakazu Anpo ◽  
Bernaurdshaw Neppolian
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Production ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene

Highly active and stable electrocatalysts of FeS2–reduced graphene oxide for hydrogen evolution

2018 ◽  
Vol 54 (2) ◽  
pp. 1422-1433 ◽  
Author(s):  
Jibo Jiang ◽  
Liying Zhu ◽  
Haotian Chen ◽  
Yaoxin Sun ◽  
Wei Qian ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Highly Active ◽  
Reduced Graphene
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