Ultralow Non-Noble Metal loaded MOF Derived Bi-Functional Electrocatalysts for Oxygen Evolution and Reduction Reactions

2021 ◽  
Author(s):  
Debabrata Bagchi ◽  
Nithi Phukan ◽  
shreya sarkar ◽  
Risov Das ◽  
B. Pavithra ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Fuel Cell ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Water Oxidation ◽  
Rational Design ◽  
Electrode Materials ◽  
Cell Water ◽  
Energy Research ◽  
Air Battery

Rational design of efficient electrode materials for fuel cell, water oxidation, and the metal-air battery is now cutting–edge activity in renewable energy research. In this regard, tuning the activity at...

scholarly journals Engineering Ternary Copper-Cobalt Sulfide Nanosheets as High-performance Electrocatalysts toward Oxygen Evolution Reaction

Catalysts ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 459 ◽  
Author(s):  
Heng Luo ◽  
Hang Lei ◽  
Yufei Yuan ◽  
Yongyin Liang ◽  
Yi Qiu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Noble Metal ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Active Sites ◽  
High Performance ◽  
Rational Design ◽  
Renewable Energy Sources ◽  
Cobalt Sulfide ◽  
Carbon Cloth

The rational design and development of the low-cost and effective electrocatalysts toward oxygen evolution reaction (OER) are essential in the storage and conversion of clean and renewable energy sources. Herein, a ternary copper-cobalt sulfide nanosheets electrocatalysts (denoted as CuCoS/CC) for electrochemical water oxidation has been synthesized on carbon cloth (CC) via the sulfuration of CuCo-based precursors. The obtained CuCoS/CC reveals excellent electrocatalytic performance toward OER in 1.0 M KOH. It exhibits a particularly low overpotential of 276 mV at current density of 10 mA cm−2, and a small Tafel slope (58 mV decade−1), which is superior to the current commercialized noble-metal electrocatalysts, such as IrO2. Benefiting from the synergistic effect of Cu and Co atoms and sulfidation, electrons transport and ions diffusion are significantly enhanced with the increase of active sites, thus the kinetic process of OER reaction is boosted. Our studies will serve as guidelines in the innovative design of non-noble metal electrocatalysts and their application in electrochemical water splitting

scholarly journals Investigation of mixed-metal (oxy)fluorides as a new class of water oxidation electrocatalysts

2019 ◽  
Vol 10 (40) ◽  
pp. 9209-9218 ◽  
Author(s):  
Kévin Lemoine ◽  
Jérôme Lhoste ◽  
Annie Hémon-Ribaud ◽  
Nina Heidary ◽  
Vincent Maisonneuve ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Energy Research ◽  
Mixed Metal ◽  
New Class

The development of electrocatalysts for the oxygen evolution reaction (OER) is one of the principal challenges in the area of renewable energy research.

Synthesis and oxygen evolution reaction (OER) catalytic performance of Ni2−xRuxP nanocrystals: enhancing activity by dilution of the noble metal

2017 ◽  
Vol 5 (33) ◽  
pp. 17609-17618 ◽  
Author(s):  
D. Ruchira Liyanage ◽  
Da Li ◽  
Quintin B. Cheek ◽  
Habib Baydoun ◽  
Stephanie L. Brock
Keyword(s):  
Oxygen Evolution ◽  
Noble Metal ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Catalytic Performance ◽  
Redox Behavior

Incorporation of Ru into Ni2P nanoparticles moderates the redox behavior of Ni and lowers the kinetic barrier for water oxidation.

scholarly journals Rational design of the electrode morphology for oxygen evolution – enhancing the performance for catalytic water oxidation

RSC Advances ◽  
2014 ◽  
Vol 4 (19) ◽  
pp. 9579 ◽  
Author(s):  
Aleksandar R. Zeradjanin ◽  
Angel A. Topalov ◽  
Quentin Van Overmeere ◽  
Serhiy Cherevko ◽  
XingXing Chen ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Water Oxidation ◽  
Rational Design

Local Spin-State Tuning of Cobalt-Iron Selenide Nanoframes for Boosted Oxygen Evolution

2021 ◽  
Author(s):  
Bao Yu Xia ◽  
Jun-Ye Zhang ◽  
Ya Yan ◽  
Bingbao Mei ◽  
Ruijuan Qi ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Spin State ◽  
Water Oxidation ◽  
Rational Design ◽  
Sustainable Energy ◽  
Hydrogen Economy ◽  
Iron Selenide ◽  
Local Spin ◽  
Cobalt Iron

Hydrogen economy through water splitting is an indispensable cornerstone for sustainable energy society yet impeded by sluggish anodic water oxidation. Hence, rational design of highly efficient electrocatalysts for oxygen evolution...

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.

In Situ Growth of MOF-Derived NaCoPO4@Carbon for Asymmetric Supercapacitive and Water Oxidation Electrocatalytic Performance

NANO ◽  
2019 ◽  
Vol 14 (12) ◽  
pp. 1950148 ◽  
Author(s):  
Peng Guo ◽  
Zhaojie Wang ◽  
Hongyu Chen ◽  
Shaohui Ge ◽  
Chen Chen ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Current Density ◽  
Water Oxidation ◽  
Rational Design ◽  
Electrode Materials ◽  
Metal Organic Framework ◽  
High Specific Capacitance ◽  
Potential Candidate ◽  
Practical Applications ◽  
A Current

The increasing energy crisis promotes the study on novel electrode materials with high performance for supercapacitive storage and energy conversion. Transition metal phosphates have been reported as a potential candidate due to the unique coordination and corresponding electronic structure. Herein, we adopted a facile method for preparing NaCoPO4@C derived from a metal organic framework (MOF) as a bifunctional electrode. ZIF-67 was synthesized before a refluxing process with Na2HPO4 to form a precursor, which is transformed into the final product via calcination in different atmospheres. Specifically, the resultant NaCoPO4@C exhibits a high specific capacitance of 1178.7[Formula: see text]F[Formula: see text]g[Formula: see text] at a current density of 1[Formula: see text]A[Formula: see text]g[Formula: see text] for a supercapacitor. An asymmetric supercapacitor (ASC) assembled with active carbon displays a high capacitance of 163.7[Formula: see text]F[Formula: see text]g[Formula: see text] at 1[Formula: see text]A[Formula: see text]g[Formula: see text]. In addition, as an oxygen evolution reaction (OER) catalyst, the NaCoPO4@C electrode requires only 299[Formula: see text]mV to drive a current density of 10[Formula: see text]mA[Formula: see text]cm[Formula: see text]. These results suggest that the rational design of MOF-derived NaCoPO4@C provides a variety of practical applications in electrochemical energy conversion and storage.

Ultrafine CoPS nanoparticles encapsulated in N, P, and S tri-doped porous carbon as an efficient bifunctional water splitting electrocatalyst in both acid and alkaline solutions

2018 ◽  
Vol 6 (22) ◽  
pp. 10433-10440 ◽  
Author(s):  
Yiping Hu ◽  
Feng Li ◽  
Yu Long ◽  
Haidong Yang ◽  
Lili Gao ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Conversion ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Porous Carbon ◽  
Oxygen Evolution Reaction ◽  
Alkaline Solutions ◽  
Highly Efficient ◽  
Energy Conversion Systems

Searching for the same highly efficient, stable and non-noble metal electrocatalysts for the hydrogen/oxygen evolution reaction (HER/OER) is crucial to renewable-energy conversion systems.

A nitrogen-doped NiCo2S4/CoO hollow multi-layered heterostructure microsphere for efficient oxygen evolution in Zn–air batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Bin He ◽  
Juan-Juan Song ◽  
Xiao-Yu Li ◽  
Chun-Yu Xu ◽  
Yi-Bo Li ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Conversion ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Nitrogen Doped ◽  
Highly Effective

Exploring highly effective and low-cost non-noble metal-based electrocatalysts for oxygen evolution reaction (OER) is critical for renewable energy conversion and metal–air batteries.

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