scholarly journals Three-dimensional NiCoP hollow spheres: an efficient electrode material for hydrogen evolution reaction and supercapacitor applications

RSC Advances ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 4650-4656 ◽  
Author(s):  
Jiban K. Das ◽  
Aneeya K. Samantara ◽  
Saumya Satyarthy ◽  
Chandra Sekhar Rout ◽  
J. N. Behera
Keyword(s):  
Hydrogen Evolution Reaction ◽  
Electrode Material ◽  
Hollow Spheres ◽  
Three Dimensional ◽  
Single Step ◽  
Charge Storage ◽  
Metal Phosphide ◽  
Storage Performance ◽  
Scalable Synthesis ◽  
Supercapacitor Applications

This work reports a single-step hydrothermal method for the scalable synthesis of binary metal phosphide (NiCoP). Further, the electrocatalytic performance for HER and electrochemical charge-storage performance towards a supercapacitor were explored.

scholarly journals The role of carbon nanotubes in enhanced charge storage performance of VSe2: experimental and theoretical insight from DFT simulations

RSC Advances ◽  
2020 ◽  
Vol 10 (53) ◽  
pp. 31712-31719
Author(s):  
Sree Raj K. A. ◽  
Afsal S. Shajahan ◽  
Brahmananda Chakraborty ◽  
Chandra Sekhar Rout
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Hybrid Structure ◽  
Charge Storage ◽  
Multiwalled Carbon ◽  
Storage Performance ◽  
Dft Simulations ◽  
Supercapacitor Applications ◽  
Theoretical Insight

Hybrid structure of VSe2 and multiwalled carbon nanotube for high performance supercapacitor applications.

Design of nickel cobalt molybdate regulated by boronizing for high-performance supercapacitor applications

Nanoscale ◽  
2020 ◽  
Vol 12 (34) ◽  
pp. 17849-17857 ◽  
Author(s):  
Gang Zhao ◽  
Yumeng Chen ◽  
Pengxiao Sun ◽  
Shuhua Hao ◽  
Xiaoke Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Synergistic Effect ◽  
Hierarchical Structure ◽  
Electrode Material ◽  
High Performance ◽  
Hybrid Architectures ◽  
Storage Performance ◽  
Nickel Cobalt ◽  
Cobalt Molybdate ◽  
Supercapacitor Applications

Here, we have successfully synthesized hierarchical structure by boronizing NixCoyMoO4 nanosheets. Benefitting from the synergistic effect among Ni3B, Ni(BO2)2 and NixCoyMoO4 in hybrid architectures, the electrode material possesses higher energy storage performance.

Remarkable capacitive behavior of a Co3O4–polyindole composite as electrode material for supercapacitor applications

2015 ◽  
Vol 3 (48) ◽  
pp. 24338-24348 ◽  
Author(s):  
R. Pavul Raj ◽  
P. Ragupathy ◽  
S. Mohan
Keyword(s):  
Synergistic Effect ◽  
Specific Capacitance ◽  
Electrode Material ◽  
Composite Electrode ◽  
High Specific Capacitance ◽  
Single Step ◽  
Rate Performance ◽  
Capacitive Behavior ◽  
Supercapacitor Applications

A single step synthesized Co3O4–polyindole composite electrode exhibits high specific capacitance, rate performance and cyclability. This enhanced electrochemical supercapacitive behavior is mainly attributed to the synergistic effect between Co3O4 and polyindole.

Single-step scalable synthesis of three-dimensional highly porous graphene with favorable methane adsorption

2016 ◽  
Vol 304 ◽  
pp. 784-792 ◽  
Author(s):  
Leila Mahmoudian ◽  
Alimorad Rashidi ◽  
Hossein Dehghani ◽  
Reza Rahighi
Keyword(s):  
Three Dimensional ◽  
Single Step ◽  
Methane Adsorption ◽  
Porous Graphene ◽  
Scalable Synthesis ◽  
Highly Porous

Synthesis of Ge4Se9 nano plates and a reduced graphene oxide composite of Ge4Se9 for electrochemical energy storage application

2019 ◽  
Vol 48 (42) ◽  
pp. 15955-15961 ◽  
Author(s):  
Jiban K. Das ◽  
Aneeya K. Samantara ◽  
Sree Raj K. A. ◽  
Chandra Sekhar Rout ◽  
J. N. Behera
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Reduced Graphene Oxide ◽  
Single Step ◽  
Electrochemical Energy Storage ◽  
Synthesis Conditions ◽  
Storage Performance ◽  
Energy Storage Application ◽  
Reduced Graphene ◽  
Scalable Synthesis

A facile and single step hydrothermal method for scalable synthesis of tetra germanium nonaselenide (Ge4Se9) and composite with reduced graphene oxide (RG) is reported and optimized the energy storage performance by manipulating synthesis conditions.

Three-dimensional porous V2O5 hierarchical spheres as a battery-type electrode for a hybrid supercapacitor with excellent charge storage performance

2017 ◽  
Vol 46 (43) ◽  
pp. 15048-15058 ◽  
Author(s):  
Yifu Zhang ◽  
Xuyang Jing ◽  
Qiushi Wang ◽  
Jiqi Zheng ◽  
Hanmei Jiang ◽  
...  
Keyword(s):  
Low Cost ◽  
Three Dimensional ◽  
Charge Storage ◽  
Hybrid Supercapacitor ◽  
Storage Performance ◽  
Template Free

Three-dimensional porous V2O5 hierarchical spheres composed of stacked platelets were fabricated by a facile, low-cost and template-free method. An AC//V2O5 HSC device delivered an excellent capacitance of 0.26 F cm−2 at 10 mV s−1.

VS2: an efficient catalyst for an electrochemical hydrogen evolution reaction in an acidic medium

2018 ◽  
Vol 47 (39) ◽  
pp. 13792-13799 ◽  
Author(s):  
Jiban K. Das ◽  
Aneeya K. Samantara ◽  
Arpan K. Nayak ◽  
Debabrata Pradhan ◽  
J. N. Behera
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Current Density ◽  
Acidic Medium ◽  
State Of The Art ◽  
Single Step ◽  
Efficient Catalyst ◽  
Tafel Slope ◽  
Onset Potential ◽  
Scalable Synthesis

A single step scalable synthesis for vanadium disulphide (VS2) was developed and the resulting material shows a better electrocatalytic performance in terms of a low onset potential (15 mV), a lower Tafel slope (36 mV dec−1) and needs only 41 mV to deliver a state-of-the-art current density of 10 mA cm−2.

Sulfur and nitrogen-doped graphene quantum dots/PANI nanocomposites for supercapacitors

2021 ◽  
Author(s):  
Hemalatha Kuzhandaivel ◽  
Sornalatha Manickam ◽  
Suresh Kannan Balasingam ◽  
Manik Clinton Franklin ◽  
Hee-Je Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Charge Storage ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Supercapacitor Applications ◽  
Storage Properties

Sulfur and nitrogen-doped graphene quantum dots/polyaniline nanocomposites were synthesized and their electrochemical charge storage properties were tested for supercapacitor applications.

Fabrication and charge storage capacitance of PPY/TiO2/PPY jacket nanotube array

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Yibing Xie
Keyword(s):  
Density Of States ◽  
Electrode Material ◽  
Acidic Solution ◽  
Tube Wall ◽  
Internal Surface ◽  
Experimental Result ◽  
Charge Storage ◽  
Current Response ◽  
Supercapacitor Electrode ◽  
Nanotube Array

AbstractA PPY/TiO2/PPY jacket nanotube array was fabricated by coating PPY layer on the external and internal surface of a tube wall-separated TiO2 nanotube array. It shows coaxial triple-walled nanotube structure with two PPY nanotube layers sandwiching one TiO2 nanotube layer. PPY/TiO2/PPY reveals much higher current response than TiO2. The theoretical calculation indicates PPY/TiO2/PPY reveals higher density of states and lower band gap, accordingly presenting higher conductivity and electroactivity, which is consistent with the experimental result of a higher current response. The electroactivity is highly enhanced in H2SO4 rather than Na2SO4 electrolyte due to feasible pronation process of PPY in an acidic solution. PPY/TiO2/PPY could conduct the redox reaction in H2SO4 electrolyte which involves the reversible protonation/deprotonation and HSO4− doping/dedoping process and accordingly contributes to Faradaic pseudocapacitance. The specific capacitance is highly enhanced from 1.7 mF cm−2 of TiO2 to 123.4 mF cm−2 of PPY/TiO2/PPY at 0.1 mA cm−2 in H2SO4 electrolyte. The capacitance also declines from 123.4 to 31.7 mF cm−2 when the current density increases from 0.1 to 1 mA cm−2, presenting the rate capacitance retention of 26.7% due to the semiconductivity of TiO2. A PPY/TiO2/PPY jacket nanotube with high charge storage capacitance is regarded as a promising supercapacitor electrode material.

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