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Calcium-, magnesium...
Calcium-, magnesium-, and yttrium-doped lithium nickel phosphate nanomaterials as high-performance catalysts for electrochemical water oxidation reaction
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- Nasir, Mehwish Huma (author)
- Quaid i Azam Univ, Dept Chem, Islamabad 45320, Pakistan.;Rawalpindi Women Univ, Dept Chem, Rawalpindi 46000, Pakistan.
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- Niaz, Hajira (author)
- Quaid i Azam Univ, Dept Chem, Islamabad 45320, Pakistan.
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- Yunus, Naila (author)
- Quaid i Azam Univ, Dept Chem, Islamabad 45320, Pakistan.
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- Ali, Urooj (author)
- Quaid i Azam Univ, Dept Chem, Islamabad 45320, Pakistan.
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- Khan, Safia (author)
- Shandong Univ, Shandong Technol Ctr Nanodevices & Integrat, Sch Microelect, Jinan 250101, Peoples R China.
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- Butt, Tehmeena Maryum (author)
- Quaid i Azam Univ, Dept Chem, Islamabad 45320, Pakistan.
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- Naeem, Hina (author)
- Rawalpindi Women Univ, Dept Chem, Rawalpindi 46000, Pakistan.
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- Li, Hu, 1986- (author)
- Uppsala universitet,Tillämpad materialvetenskap
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- Habila, Mohamed A. (author)
- King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia.
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- Janjua, Naveed Kausar (author)
- Quaid i Azam Univ, Dept Chem, Islamabad 45320, Pakistan.
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Quaid i Azam Univ, Dept Chem, Islamabad 45320, Pakistan;Rawalpindi Women Univ, Dept Chem, Rawalpindi 46000, Pakistan. Quaid i Azam Univ, Dept Chem, Islamabad 45320, Pakistan. (creator_code:org_t)
- Walter de Gruyter, 2024
- 2024
- English.
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In: Nanotechnology Reviews. - : Walter de Gruyter. - 2191-9089 .- 2191-9097. ; 13:1
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https://uu.diva-port... (primary) (Raw object)
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Abstract
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- Electrochemical water oxidation reaction (WOR) lies among the most forthcoming approaches toward eco-conscious manufacturing of green hydrogen owing to its environmental favors and high energy density values. Its vast commoditization is restricted by high-efficiency and inexpensive catalysts that are extensively under constant research. Herein, calcium, magnesium, and yttrium doped lithium nickel phosphate olivines (LiNi1-xMxPO, LNMP; x = 0.1-0.9; M = Ca2+, Mg2+, and Y3+) were synthesized via non-aqueous sol-gel method and explored for catalytic WOR. Lithium nickel phosphates (LNP) and compositions were characterized via Fourier transform infrared, scanning electron microscopy, X-ray diffraction, and energy dispersive X-ray diffraction techniques for the structural and morphological analyses. Glassy carbon electrode altered with the LNMPs when studied in a standard redox system of 5 mM KMnO4, displayed that yttrium doped LNP, i.e. LNYP-3 exhibits the highest active surface area (0.0050 cm(2)) displaying the lowest average crystallite size (D-avg) i.e. similar to 7 nm. Electrocatalytic behavior monitored in KOH showed that LNMP-2 offers the highest rate constant "k(o)," value, i.e. 3.9 10(-2) cm s(-1) and the largest diffusion coefficient "D-o," i.e. 5.2 x 10(-5) cm(2) s(-1). Kinetic and thermodynamic parameters demonstrated the facilitated electron transfer and electrocatalytic properties of proposed nanomaterials. Water oxidation peak current density values were indicative of the robust catalysis and facilitated water oxidation process besides lowering the Faradic onset potential signifying the transformation of less LNP into more conducive LNMP toward water oxidation.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- lithium nickel phosphate
- Ca
- Mg
- Y-doped LNP
- nanomaterial
- sol-gel method
- electrocatalytic water oxidation
- sustainable development
- electrocatalysts
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Nasir, Mehwish H ...
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Niaz, Hajira
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Yunus, Naila
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Ali, Urooj
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Khan, Safia
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Butt, Tehmeena M ...
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show more...
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Naeem, Hina
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Li, Hu, 1986-
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Habila, Mohamed ...
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Janjua, Naveed K ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
- Articles in the publication
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Nanotechnology R ...
- By the university
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Uppsala University