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Developing efficient and earth-abundant electrocatalysts for electrochemical water splitting is greatly desired due to growing energy demands. Herein, we develop a promising hierarchical nickel-iron-copper nitride electrode that is fabricated via a three-step process, starting with a hydrothermal synthesis of nickel-iron hydroxide on nickel foam and followed by the direct growth of copper metal-organic frameworks and, finally, low temperature ammonization. This approach yields a material that is an efficient catalyst for both the oxygen evolution reaction and the hydrogen evolution reaction. The as-fabricated heterostructured nickel-iron-copper nitride electrode exhibits an excellent activity with an overpotential of only 121 mV for the oxygen evolution reaction and an even lower overpotential of 33 mV for the hydrogen evolution reaction. Additionally, this structure displays strong long-term stability with only a negligible increase in potential after 500 cycles of uninterrupted CV testing. To the best of our knowledge, this as-prepared hierarchical nickel-iron-copper nitride is one of the most promising alternatives for the electrochemical oxygen and hydrogen evolution reactions.
This article was published in the following journal.
Name: ACS applied materials & interfaces
Nanolamellar transition metal carbides are gaining increasing interests because of the recent developments of their two-dimensional (2D) derivatives and promising performance for a variety of applicat...
A large number of enzymes depend on the ubiquitous co-factor pyridoxal 5' phosphate (PLP) for their activity. Pyridoxal kinase (PLK) is the key enzyme involved in the synthesis of PLP from the three f...
In this study, we fabricate a novel ternary heterojunction comprising CoAl-layered double hydroxide, g-CN, and reduced graphene oxide (LDH/CN/RGO) with a notable 2D/2D/2D configuration using a simple ...
A layered cathode for K-ion storage was achieved using electrochemical ion-exchange. It delivers a large specific capacity, superior rate performance and excellent cycling performance. Interestingly, ...
Anodes involving conversion and alloying reaction mechanisms are attractive for potassium-ion batteries (PIBs) due to their high theoretical capacities. However, serious volume change and metal aggreg...
This study is to try to maintain cultured dermal papilla cells in spherical structure in vitro before transplanting into dermis in vivo. Also, this study is aimed in clarifying actual mech...
The aim of this study is to perform the bone tissue engineering to reconstruct the alveolar bone defect in cleft lip and palate patients using mesenchymal stem cells from deciduous dental ...
The purpose of this study is to determine whether tissue engineering conjunctiva is effective in the treatment of pterygium and atretoblepharia.
This study will use the NIH-sponsored Women and Infants Transmission Study (WITS) and the Pediatric Pulmonary and Cardiovascular Complications of Vertically Transmitted HIV Infection (P2C2...
This study is designed to compare the three chemotherapy regimens(TEGAFOX Sequential S-1 or SOX Sequential S-1 or SOX non-Sequential S-1) for postoperative patients with gastric cancer, ob...
Generating tissue in vitro for clinical applications, such as replacing wounded tissues or impaired organs. The use of TISSUE SCAFFOLDING enables the generation of complex multi-layered tissues and tissue structures.
The organ of sight constituting a pair of globular organs made up of a three-layered roughly spherical structure specialized for receiving and responding to light.
The rostral part of the amygdala with cortical-like layered structure. It receives major inputs from the OLFACTORY BULB and PIRIFORM CORTEX.
Methods and techniques used to modify or select cells and develop conditions for growing cells for biosynthetic production of molecules (METABOLIC ENGINEERING), for generation of tissue structures and organs in vitro (TISSUE ENGINEERING), or for other BIOENGINEERING research objectives.
Application of principles and practices of engineering science to the transformation, design, and manufacture of substances on an industrial scale.