Enabling Multifunctional Electrocatalysts by Modifying the Basal Plane of Unifunctional 1T′-MoS2 with Anchored Transition-Metal Single Atoms

Nanoscale ◽  
2021 ◽  
Author(s):  
Yuanyuan Wang ◽  
Mengru Wang ◽  
Zhansheng Lu ◽  
Dongwei Ma ◽  
Yu Jia
Keyword(s):  
Fuel Cell ◽  
Transition Metal ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Basal Plane ◽  
Reduction Reaction ◽  
Single Atoms ◽  
Air Battery ◽  
Regenerative Fuel Cell

Multifunctional electrocatalysts for hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR) are attractive for the overall water-splitting, rechargeable metal-air battery, and unitized regenerative fuel cell....

Multifunctional nanostructured electrocatalysts for energy conversion and storage: current status and perspectives

Nanoscale ◽  
2018 ◽  
Vol 10 (24) ◽  
pp. 11241-11280 ◽  
Author(s):  
Srabanti Ghosh ◽  
Rajendra N. Basu
Keyword(s):  
Energy Storage ◽  
Oxygen Reduction Reaction ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Reduction Reaction ◽  
Current Status ◽  
Energy Storage And Conversion ◽  
Energy Conversion And Storage ◽  
And Storage

Multifunctional electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) have attracted widespread attention because of their important role in the application of various energy storage and conversion devices, such as fuel cells, metal–air, batteries and water splitting devices.

Ternary PtVCo dendrites for the hydrogen evolution reaction, oxygen evolution reaction, overall water splitting and rechargeable Zn–air batteries

2018 ◽  
Vol 5 (10) ◽  
pp. 2425-2431 ◽  
Author(s):  
Zhaoqing Ding ◽  
Zhenghua Tang ◽  
Ligui Li ◽  
Kai Wang ◽  
Wen Wu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Cost Effective ◽  
Energy Sources ◽  
Overall Water Splitting ◽  
Highly Active ◽  
Air Battery

Designing a highly active, robust and cost-effective electrocatalyst with multiple functionalities toward overall water splitting and rechargeable Zn–air battery applications is crucial and urgent for the development of sustainable energy sources.

High-performance AEM unitized regenerative fuel cell using Pt-pyrochlore as bifunctional oxygen electrocatalyst

2021 ◽  
Vol 118 (40) ◽  
pp. e2107205118
Author(s):  
Pralay Gayen ◽  
Sulay Saha ◽  
Xinquan Liu ◽  
Kritika Sharma ◽  
Vijay K. Ramani
Keyword(s):  
Fuel Cell ◽  
High Performance ◽  
Reduction Reaction ◽  
Anion Exchange Membrane ◽  
Round Trip ◽  
Activity Profile ◽  
Air Battery ◽  
Orr Activity ◽  
Regenerative Fuel Cell ◽  
Exchange Membrane

The performance of fixed-gas unitized regenerative fuel cells (FG-URFCs) are limited by the bifunctional activity of the oxygen electrocatalyst. It is essential to have a good bifunctional oxygen electrocatalyst which can exhibit high activity for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). In this regard, Pt-Pb2Ru2O7-x is synthesized by depositing Pt on Pb2Ru2O7-x wherein Pt individually exhibits high ORR while Pb2Ru2O7-x shows high OER and moderate ORR activity. Pt-Pb2Ru2O7-x exhibits higher OER (η@10mAcm-2 = 0.25 ± 0.01 V) and ORR (η@-3mAcm-2 = -0.31 ± 0.02 V) activity in comparison to benchmark OER (IrO2, η@10mAcm-2 = 0.35 ± 0.02 V) and ORR (Pt/C, η@-3mAcm-2 = -0.33 ± 0.02 V) electrocatalysts, respectively. Pt-Pb2Ru2O7-x shows a lower bifunctionality index (η@10mAcm-2, OER− η@-3mAcm-2, ORR) of 0.56 V with more symmetric OER–ORR activity profile than both Pt (>1.0 V) and Pb2Ru2O7-x (0.69 V) making it more useful for the AEM (anion exchange membrane) URFC or metal-air battery applications. FG-URFC tested with Pt-Pb2Ru2O7-x and Pt/C as bifunctional oxygen electrocatalyst and bifunctional hydrogen electrocatalyst, respectively, yields a mass-specific current density of 715 ± 11 A/gcat-1 at 1.8 V and 56 ± 2 A/gcat-1 at 0.9 V under electrolyzer mode and fuel-cell mode, respectively. The FG-URFC shows a round-trip efficiency of 75% at 0.1 A/cm−2, underlying improvement in AEM FG-URFC electrocatalyst design.

Synthesis of bifunctional BaFe1−xCoxO3−y−δ(OH)y catalysts for the oxygen reduction reaction and oxygen evolution reaction

2020 ◽  
Vol 8 (2) ◽  
pp. 616-625 ◽  
Author(s):  
Aamir Iqbal Waidha ◽  
Lingmei Ni ◽  
Jasim Ali ◽  
Maren Lepple ◽  
Manuel Donzelli ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Perovskite Oxides ◽  
Reduction Reaction ◽  
Energy Materials ◽  
Electronic Conductivities ◽  
Air Battery

Perovskite oxides with mixed ionic and electronic conductivities are very promising candidates for their application as energy materials related to fuel cell and metal air battery integration.

The one-step electrodeposition of nickel phosphide for enhanced supercapacitive performance using 3-mercaptopropionic acid

2020 ◽  
Vol 44 (19) ◽  
pp. 7690-7697
Author(s):  
Venkata Thulasivarma Chebrolu ◽  
Balamuralitharan Balakrishnan ◽  
Selvaraj Aravindha Raja ◽  
Inho Cho ◽  
Jin-Soo Bak ◽  
...  
Keyword(s):  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Reduction Reaction ◽  
Rechargeable Batteries ◽  
Nickel Phosphide ◽  
Supercapacitive Performance ◽  
One Step ◽  
The One ◽  
Electrodeposition Of Nickel

TMPs have received considerable attention for various applications, including the water splitting reaction (hydrogen evolution reaction and oxygen evolution reaction), methanol oxidation, the oxygen reduction reaction, rechargeable batteries, and supercapacitors.

Multi-functional photocatalytic activity of transition-metal mtetraaza[14]annulene frameworks

2021 ◽  
Author(s):  
Wenqing Zhang ◽  
Hongxia Bu ◽  
Juan Wang ◽  
Lanling Zhao ◽  
Yuanyuan Qu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Renewable Energy ◽  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Reduction Reaction ◽  
Energy Conversion And Storage ◽  
Storage Technologies ◽  
And Storage

Multi-functional catalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) are highly desired in the development of renewable energy conversion and storage technologies. Using...

scholarly journals Nearly spherical CoP nanoparticle/carbon nanosheet hybrids: a high-performance trifunctional electrocatalyst for oxygen reduction and water splitting

RSC Advances ◽  
2019 ◽  
Vol 9 (68) ◽  
pp. 39951-39957 ◽  
Author(s):  
Wenjian Zou ◽  
Kunpeng Dou ◽  
Qi Jiang ◽  
Jiadong Xiang ◽  
Chao-Cheng Kaun ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Reduction Reaction ◽  
Hybrid Structures ◽  
Alkaline Condition

The CoP nanoparticles/carbon sheets hybrid structures are highly efficient trifunctional electrocatalytic activities toward the oxygen reduction reaction, oxygen evolution reaction, and hydrogen evolution reaction under alkaline condition.

scholarly journals Recent Studies on Multifunctional Electrocatalysts for Fuel Cell by Various Nanomaterials

Catalysts ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 621 ◽  
Author(s):  
Sanha Jang ◽  
Kyeongmin Moon ◽  
Youchang Park ◽  
Sujung Park ◽  
Kang Hyun Park
Keyword(s):  
Fuel Cell ◽  
Environmental Factors ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Oxidation Reaction ◽  
High Efficiency ◽  
Electrochemical Reaction ◽  
Reduction Reaction ◽  
Structural Defects ◽  
Catalytic Applications

Based on nanotechnology, nanocomposites are synthesized using nanoparticles (NP), which have some advantages in terms of multifunctional, economic, and environmental factors. In this review, we discuss the inorganic applications as well as catalytic applications of NPs. Recently, structural defects, heteroatomic doping, and heterostructures of such efficient ideal catalysts and their application as multifunctional catalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in water splitting. It has been verified that the catalysts used in oxygen reduction reaction and OER can be used effectively in metal/air batteries. Moreover, it has been reported that high-efficiency catalysts are required to implement urea oxidation reaction (UOR), which involves a six-electron reaction, as an electrochemical reaction. We expect that this review can be applied to sustainable and diverse electrochemistry fields.

Stabilization of Ruthenium Nanoparticles over NiV-LDH Surface for Enhanced Electrochemical Water Splitting: An Oxygen Vacancy Approach

2022 ◽  
Author(s):  
Arun Karmakar ◽  
Karthick Kannimuthu ◽  
S. Sam Sankar ◽  
K. Sangeetha ◽  
Ragunath Madhu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Oxygen Vacancy ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Ruthenium Nanoparticles ◽  
Layer Double Hydroxide ◽  
Electrochemical Water Splitting ◽  
Double Hydroxide

In a search of alternates for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), out of various transition metal based electrocatalysts, layer double hydroxide (LDHs) based materials are attracted...

Single transition metal atom embedded antimonene monolayers as efficient trifunctional electrocatalysts for HER, OER and ORR: A density functional theory study

Nanoscale ◽  
2021 ◽  
Author(s):  
Song Lu ◽  
Huong Lan Huynh ◽  
Fengliu lou ◽  
Kun Guo ◽  
Zhixin Yu
Keyword(s):  
Density Functional Theory ◽  
Transition Metal ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Density Functional ◽  
Cost Effective ◽  
Reduction Reaction ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Single Transition

Highly efficient, stable and cost-effective electrocatalysts for hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR) have been pursued for several decades. Herein, by employing density...

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