scholarly journals High-Efficiency of Bi-Functional-Based Perovskite Nanocomposite for Oxygen Evolution and Oxygen Reduction Reaction: An Overview

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2976
Author(s):  
Tse-Wei Chen ◽  
Palraj Kalimuthu ◽  
Ganesan Anushya ◽  
Shen-Ming Chen ◽  
Rasu Ramachandran ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
High Efficiency ◽  
Low Cost ◽  
Catalytic Performance ◽  
Rechargeable Batteries ◽  
General Mechanism ◽  
Storage Device ◽  
Morphological Studies ◽  
High Efficient

High efficient, low-cost and environmentally friendly-natured bi-functional-based perovskite electrode catalysts (BFPEC) are receiving increasing attention for oxygen reduction/oxygen evolution reaction (ORR/OER), playing an important role in the electrochemical energy conversion process using fuel cells and rechargeable batteries. Herein, we highlighted the different kinds of synthesis routes, morphological studies and electrode catalysts with A-site and B-site substitution co-substitution, generating oxygen vacancies studies for boosting ORR and OER activities. However, perovskite is a novel type of oxide family, which shows the state-of-art electrocatalytic performances in energy storage device applications. In this review article, we go through different types of BFPECs that have received massive appreciation and various strategies to promote their electrocatalytic activities (ORR/OER). Based on these various properties and their applications of BFPEC for ORR/OER, the general mechanism, catalytic performance and future outlook of these electrode catalysts have also been discussed.

Constructing oxygen vacancy-enriched Fe2O3@NiO heterojunctions for highly efficient electrocatalytic alkaline water splitting

CrystEngComm ◽  
2021 ◽  
Author(s):  
Yan Sang ◽  
Xi Cao ◽  
Gaofei Ding ◽  
Zixuan Guo ◽  
Yingying Xue ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
High Purity ◽  
Oxygen Evolution Reaction ◽  
High Efficiency ◽  
Low Cost ◽  
Dual Function ◽  
Alkaline Water ◽  
High Purity Hydrogen

Electrolysis of water to produce high-purity hydrogen is a very promising method. The development of green, high-efficiency, long-lasting and low-cost dual function electrocatalysts for oxygen evolution reaction (OER) and hydrogen...

Low-cost high entropy alloy (HEA) for high-efficiency oxygen evolution reaction (OER)

Nano Research ◽  
2021 ◽  
Author(s):  
Lalita Sharma ◽  
Nirmal Kumar Katiyar ◽  
Arko Parui ◽  
Rakesh Das ◽  
Ritesh Kumar ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Efficiency ◽  
Low Cost ◽  
High Entropy Alloy ◽  
High Entropy

Enhanced Activity towards Oxygen Electrocatalysis for Rechargeable Zn-Air Batteries by Alloying Fe and Co in N-doped Carbon

2021 ◽  
Author(s):  
Fengjiao Yu ◽  
Qi Ying ◽  
Shaofeng Ni ◽  
Chenxue Li ◽  
Daxiang Xue ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Noble Metals ◽  
Large Scale ◽  
Low Cost ◽  
Reduction Reaction ◽  
Enhanced Activity ◽  
Feco Nanoparticles

Large-scale application of rechargeable Zn-air batteries requires low-cost electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) as alternatives to noble metals. Herein, FeCo nanoparticles embedded in N-doped...

Atomically thin titanium carbide used as high-efficient, low-cost and stable catalyst for oxygen reduction reaction

2020 ◽  
Vol 45 (11) ◽  
pp. 6994-7004 ◽  
Author(s):  
Chengdong Wang ◽  
Songlin Zhang ◽  
Mingxun Zheng ◽  
Ruoyu Shu ◽  
Shengxu Gu ◽  
...  
Keyword(s):  
Titanium Carbide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Low Cost ◽  
Reduction Reaction ◽  
Stable Catalyst ◽  
High Efficient

One-Step Synthesis of Rod-Shaped NiFe-MOF as a Highly Efficient Oxygen Evolution Catalyst

NANO ◽  
2019 ◽  
Vol 14 (08) ◽  
pp. 1950101 ◽  
Author(s):  
Dandan Zhang ◽  
Renxing Huang ◽  
Huaming Xie ◽  
Xingyong Liu ◽  
Ying Lei ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Electrochemical Techniques ◽  
Nitrogen Adsorption ◽  
Catalytic Performance ◽  
Highly Efficient ◽  
Transmission Electron

Development of low-cost, highly active catalyst for efficient oxygen evolution reaction based on earth-abundant metals is still a great challenge. Here, we report that a rod-like bimetallic NiFe metal-organic framework (NiFe-MOF) can directly act as a highly efficient oxygen evolution reaction (OER) catalyst synthesized by a convenient-to-operate hydrothermal method. The rod-like NiFe-MOF can derive 10[Formula: see text]mA[Formula: see text]cm[Formula: see text] with a low overpotential of only 26[Formula: see text]mV, and its Tafel slope is 40.82[Formula: see text]mV[Formula: see text]dec[Formula: see text], which is superior to that of monometallic Ni-MOF or Fe-MOF, and even can be comparable to that of RuO2. To identify the origin of enhancing OER activity, we resorted to X-ray diffraction, scanning electron microscope, transmission electron microscope, high resolution transmission electron microscopy image and nitrogen adsorption–desorption techniques and various electrochemical techniques to probe it gingerly. The results indicate that its high electrochemically active area and the synergistic effect of bimetallic node could be responsible for the surprisingly high catalytic performance of the NiFe-MOF. These results suggest that this kind of bimetallic MOF (NiFe-MOF) could be a promising electrocatalyst for oxygen evolution reaction.

scholarly journals Mesoporous Nanocast Electrocatalysts for Oxygen Reduction and Oxygen Evolution Reactions

Inorganics ◽  
2019 ◽  
Vol 7 (8) ◽  
pp. 98 ◽  
Author(s):  
Tatiana Priamushko ◽  
Rémy Guillet-Nicolas ◽  
Freddy Kleitz
Keyword(s):  
Oxygen Reduction ◽  
High Activity ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Noble Metals ◽  
Low Cost ◽  
High Surface ◽  
Clean Energy ◽  
Production Costs ◽  
Synthesis Methods

Catalyzed oxygen evolution and oxygen reduction reactions (OER and ORR, respectively) are of particular significance in many energy conversion and storage processes. During the last decade, they emerged as potential routes to sustain the ever-growing needs of the future clean energy market. Unfortunately, the state-of-the-art OER and ORR electrocatalysts, which are based on noble metals, are noticeably limited by a generally high activity towards one type of reaction only, high costs and relatively low abundance. Therefore, the development of (bi)functional low-cost non-noble metal or metal-free electrocatalysts is expected to increase the practical energy density and drastically reduce the production costs. Owing to their pore properties and high surface areas, mesoporous materials show high activity towards electrochemical reactions. Among all synthesis methods available for the synthesis of non-noble mesoporous metal oxides, the hard-templating (or nanocasting) approach is one of the most attractive in terms of achieving variable morphology and porosity of the materials. In this review, we thus focus on the recent advances in the design, synthesis, characterization and efficiency of non-noble metal OER and ORR electrocatalysts obtained via the nanocasting route. Critical aspects of these materials and perspectives for future developments are also discussed.

scholarly journals High intrinsic activity of the oxygen evolution reaction in low-cost NiO nanowall electrocatalysts

2020 ◽  
Vol 1 (6) ◽  
pp. 1971-1979
Author(s):  
Salvatore Cosentino ◽  
Mario Urso ◽  
Giacomo Torrisi ◽  
Sergio Battiato ◽  
Francesco Priolo ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Thermal Annealing ◽  
Chemical Bath Deposition ◽  
Oxygen Evolution Reaction ◽  
High Efficiency ◽  
Low Cost ◽  
Intrinsic Activity

NiO nanowalls grown by low-cost chemical bath deposition and thermal annealing are a high-efficiency and sustainable electrocatalytst for OER.

Storage of hydrogen and lithium in inorganic nanotubes and nanowires

2006 ◽  
Vol 21 (11) ◽  
pp. 2744-2757 ◽  
Author(s):  
Fangyi Cheng ◽  
Jun Chen
Keyword(s):  
Energy Storage ◽  
High Efficiency ◽  
Low Cost ◽  
High Surface ◽  
Rechargeable Batteries ◽  
Energy Storage And Conversion ◽  
Electrochemical Characteristics ◽  
Environmental Benefit ◽  
Lithium Storage ◽  
Inorganic Nanotubes

The search for cleaner and more efficient energy storage and conversion technologies has become an urgent task due to increasing environmental issues and limited energy resources. The aim of energy storage and conversion is to obtain energy with environmental benefit, high efficiency, and low cost (namely, maximum atomic and recycling economy). Progress has been made in the fields of hydrogen storage and rechargeable batteries. The emerging nanotechnology offers great opportunities to improve the performance of existing energy storage systems. Applying nanoscale materials to energy storage offers a higher capacity compared to the bulk counterparts due to the unique properties of nanomaterials such as high surface areas, large surface-to-volume atom ratio, and size-confinement effect. In particular, one- dimensional (1D) inorganic nanostructures like tubes and wires exhibit superior electrochemical characteristics because of the combined advantages of small size and 1D morphology. Hydrogen and lithium can be stored in different 1D nanostructures in various ways, including physical and/or chemical sorption, intercalation, and electrochemical reactions. This review highlights some of the latest progress with the studies of hydrogen and lithium storage in inorganic nanotubes and nanowires such as MoS2, WS2, TiS2, BN, TiO2, MnO2, V2O5, Fe2O3, Co3O4, NiO, and SnO2.

Tunable ternary (P, S, N)-doped graphene as an efficient electrocatalyst for oxygen reduction reaction in an alkaline medium

RSC Advances ◽  
2015 ◽  
Vol 5 (105) ◽  
pp. 86746-86753 ◽  
Author(s):  
Yishu Wang ◽  
Bowen Zhang ◽  
Minghui Xu ◽  
Xingquan He
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Low Cost ◽  
Reduction Reaction ◽  
Efficient Catalyst ◽  
Pyrolysis Method ◽  
High Efficient ◽  
Doped Graphene ◽  
One Step ◽  
Nitrogen Phosphorus

A novel nitrogen, phosphorus and sulfur ternary-doped graphene (PSNG) was synthesized by a one-step pyrolysis method, which was used as a low-cost and high-efficient catalyst for the oxygen reduction reaction.

scholarly journals The Possibility of a High-efficiency Wave Power Generation System using Dielectric Elastomers

2021 ◽  
Author(s):  
Kazuhiro Ohyama ◽  
Seiki Chiba ◽  
Mikio Waki ◽  
Changqing Jiang ◽  
Makoto Takeshita ◽  
...  
Keyword(s):  
Power Generation ◽  
Environmental Sustainability ◽  
High Efficiency ◽  
Low Cost ◽  
Artificial Muscle ◽  
Current Status ◽  
Oscillating Water Column ◽  
Generation System ◽  
High Efficient ◽  
Power Generation System

Abstract: Power generation using dielectric elastomer (DE) artificial muscle is attracting attention because of its light weight, low cost, and high efficiency. Since this method is a system that produces electricity without emitting carbon dioxide nor using rare earths, it would contribute to the goal of environmental sustainability. In this paper, the background of DEs, the associated high-efficient wave energy generation (WEG) systems that we developed using DEs, as well as the latest development of its material are summarized. By covering the challenges we face and the achievements that we’ve reached, we can discuss the opportunities to build the foundation of a recycled energy society through the usage of these WEGs. On the other hand, to make these possibilities commercially successful, the advantages of DEs need to be integrated with traditional technologies. To achieve this, we also consider the method of using DEs alone and a system used in combination with an oscillating water column. Finally, the current status and future of DEGs are discussed.

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