Tailoring the defects of sub-100 nm multipodal titanium nitride/oxynitride nanotubes for efficient water splitting performance

Eid, Kamel; Sliem, Mostafa H.; Abdullah, Aboubakr M.

doi:10.1039/d1na00274k

Cited by 28 publications

(9 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The continuous utilization of non-renewable fossil fuels leads to the inevitable emission of hazardous gases, leading to global warming and climate changes . Various efforts were dedicated to circumventing these issues, including finding alternate renewable energy sources, like water electrolysis, − solar cells, − alcohol oxidation, − and oxygen reduction-based fuel cells. , Another practical approach is the conversion of harmful gases (i.e., CO , and CO 2 ) to suitable chemicals and fuels. CO oxidation is essential in industrial, environmental, and fundamental applications. − Also, CO poisoning is one of the most significant barriers that deteriorate the performance of alcoholic-based fuel cells. − Electrochemical CO oxidation is among the most promising ways to remove CO from the atmosphere or convert it to valuable products or less hazardous gases and is preferred to thermal oxidation due to a lower energy demand .…”

Section: Introductionmentioning

confidence: 99%

Pd-Nanoparticles Embedded Metal–Organic Framework-Derived Hierarchical Porous Carbon Nanosheets as Efficient Electrocatalysts for Carbon Monoxide Oxidation in Different Electrolytes

et al. 2022

Self Cite

View full text Add to dashboard Cite

Rational synthesis of Co-ZIF-67 metal–organic framework (MOF)-derived carbon-supported metal nanoparticles is essential for various energy and environmental applications; however, their catalytic activity toward carbon monoxide (CO) oxidation in various electrolytes is not yet emphasized. Co-ZIF-67-derived hierarchical porous carbon nanosheet-supported Pd nanocrystals (Pd/ZIF-67/C) were prepared using a simple microwave-irradiation approach followed by carbonization and etching. Mechanistically, during microwave irradiation, triethyleneamine provides abundant reducing gases that promote the formation of Pd nanoparticles/Co-Nx in porous carbon nanosheets with the assistance of ethylene glycol and also form a multimodal pore size. The electrocatalytic CO oxidation activity and stability of Pd/ZIF-67/C outperformed those of commercial Pd/C and Pt/C catalysts by (4.2 and 4.4, 4.0 and 2.7, 3.59 and 2.7) times in 0.1 M HClO4, 0.1 M KOH, and 0.1 M NaHCO3, respectively, due to the catalytic properties of Pd besides the conductivity of Co-Nx active sites and delicate porous structures of ZIF-67. Notably, using Pd/ZIF-67/C results in a higher CO oxidation activity than Pd/C and Pt/C. This study may pave the way for using MOF-supported multi-metallic nanoparticles for CO oxidation electrocatalysis.

show abstract

Section: Introductionmentioning

confidence: 99%

Pd-Nanoparticles Embedded Metal–Organic Framework-Derived Hierarchical Porous Carbon Nanosheets as Efficient Electrocatalysts for Carbon Monoxide Oxidation in Different Electrolytes

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…The growing global energy crisis and environmental problems caused by the massive consumption of traditional non-renewable resources drive humans to explore eco-friendly and renewable energy, and hydrogen (H 2 ) is a desirable alternative to fossil fuels on account of its high calorific value and pollution-free features [ 1 , 2 , 3 , 4 ]. Water electrolysis technology provides a facile and sustainable route for the massive generation of high-purity H 2 [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. Nevertheless, large-scale water electrolysis would doubtlessly exacerbate the shortage of freshwater.…”

Section: Introductionmentioning

confidence: 99%

Amorphous Co-Mo-B Film: A High-Active Electrocatalyst for Hydrogen Generation in Alkaline Seawater

et al. 2022

View full text Add to dashboard Cite

The development of efficient electrochemical seawater splitting catalysts for large-scale hydrogen production is of great importance. In this work, we report an amorphous Co-Mo-B film on Ni foam (Co-Mo-B/NF) via a facile one-step electrodeposition process. Such amorphous Co-Mo-B/NF possesses superior activity with a small overpotential of 199 mV at 100 mA cm−2 for a hydrogen evolution reaction in alkaline seawater. Notably, Co-Mo-B/NF also maintains excellent stability for at least 24 h under alkaline seawater electrolysis.

show abstract

“…This fabricated doped PbO-doped ZnO MSs/Nafion/GCE is very active and electro-oxidized the 2,6-DNP in respect of current against applied potential compared to other chemicals. In addition, the doped nanomaterials have lower optical band-gap energy and higher reactive surface area compared to the single metal oxides, which might be influenced by the electrochemical sensing performances [37][38][39].For this reason, PbO-doped ZnO MSs have been prepared applying the wet-chemical method to enhance the electrochemical sensing of target 2,6-DNP in phosphate-buffered solution.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalysis of 2,6-Dinitrophenol Based on Wet-Chemically Synthesized PbO-ZnO Microstructures

et al. 2022

View full text Add to dashboard Cite

In this approach, a reliable 2,6-dinitrophenol (2,6-DNP) sensor probe was developed by applying differential pulse voltammetry (DPV) using a glassy carbon electrode (GCE) decorated with a wet-chemically prepared PbO-doped ZnO microstructures’ (MSs) electro-catalyst. The nanomaterial characterizing tools such as FESEM, XPS, XRD, UV-vis., and FTIR were used for the synthesized PbO-doped ZnO MSs to evaluate in detail of their optical, structural, morphological, functional, and elemental properties. The peak currents obtained in DPV analysis of 2,6-DNP using PbO-doped ZnO MSs/GCE were plotted against the applied potential to result the calibration of 2,6-DNP sensor expressed by ip(µA) = 1.0171C(µM) + 22.312 (R2 = 0.9951; regression co-efficient). The sensitivity of the proposed 2,6-DNP sensor probe obtained from the slope of the calibration curve as well as dynamic range for 2,6-DNP detection were found as 32.1867 µAµM−1cm−2 and 3.23~16.67 µM, respectively. Besides this, the lower limit of 2,6-DNP detection was calculated by using signal/noise (S/N = 3) ratio and found as good lowest limit (2.95 ± 0.15 µM). As known from the perspective of environment and healthcare sectors, the existence of phenol and their derivatives are significantly carcinogenic and harmful which released from various industrial sources. Therefore, it is urgently required to detect by electrochemical method with doped nanostructure materials. The reproducibility as well as stability of the working electrode duration, response-time, and the analysis of real environmental-samples by applying the recovery method were measured, and found outstanding results in this investigation. A new electrochemical research approach is familiarized to the development of chemical sensor probe by using nanostructured materials as an electron sensing substrate for the environmental safety (ecological system).

show abstract

Tailoring the defects of sub-100 nm multipodal titanium nitride/oxynitride nanotubes for efficient water splitting performance

Abstract: Deciphering the photocatalytic-defects relationship of the photoanodes can pave the way towards the rational design of high-performance solar energy conversion. Herein, we rationally designed uniform and aligned ultrathin sub-100 nm...

Cited by 28 publications

References 62 publications

Pd-Nanoparticles Embedded Metal–Organic Framework-Derived Hierarchical Porous Carbon Nanosheets as Efficient Electrocatalysts for Carbon Monoxide Oxidation in Different Electrolytes

Pd-Nanoparticles Embedded Metal–Organic Framework-Derived Hierarchical Porous Carbon Nanosheets as Efficient Electrocatalysts for Carbon Monoxide Oxidation in Different Electrolytes

Amorphous Co-Mo-B Film: A High-Active Electrocatalyst for Hydrogen Generation in Alkaline Seawater

Electrocatalysis of 2,6-Dinitrophenol Based on Wet-Chemically Synthesized PbO-ZnO Microstructures

Contact Info

Product

Resources

About