Seyed Ariana Mirshokraee

University of Milano-Bicocca

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Enrico Berretti

Institute for the Chemistry of OrganoMetallic Compounds

Carlo Santoro

University of Milano-Bicocca

Alessandro Lavacchi

Institute for the Chemistry of OrganoMetallic Compounds

Mohsin Muhyuddin

University of Milano-Bicocca

Jacopo Orsilli

University of Milano-Bicocca

Carmelo Lo Vecchio

Institute for Advanced Energy Technologies

Vincenzo Baglio

Institute for Advanced Energy Technologies

Laura Capozzoli

Institute for the Chemistry of OrganoMetallic Compounds

Luca Olivi

Elettra-Sincrotrone Trieste S.C.p.A.

Francesco Di Franco

University of Palermo

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National Research Council

Consorzio Roma Ricerche

University of Milano-Bicocca

Institute for Microelectronics and Microsystems

National Interuniversity Consortium of Materials Science and Technology

Institute of Nanostructured Materials

Institute of Structure of Matter

University of Bologna

Centre National de la Recherche Scientifique

University of Milan

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Author response for "Mono-, bi- and tri-metallic platinum group metal-free electrocatalyst for hydrogen evolution reaction following a facile synthetic route"

Seyed Ariana Mirshokraee Mohsin Muhyuddin Jacopo Orsilli Enrico Berretti Laura Capozzoli

Platinum group

10.1039/d3im00058c/v2/response1

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Tuning Electronic and Functional Properties in Defected MoS₂ Films by Surface Patterning of Sulphur Atomic Vacancies

Small Methods (2024)

Denis Gentili Gabriele Calabrese Eugenio Lunedei F. Borgatti Seyed Ariana Mirshokraee

Defects are inherent in transition metal dichalcogenides and significantly affect their chemical and physical properties. In this study, surface defect electrochemical nanopatterning is proposed as a promising method to tune in a controlled manner the electronic and functional properties of defective MoS₂ thin films. Using parallel electrochemical nanolithography, MoS₂ thin films are patterned, creating sulphur vacancy-rich active zones alternated with defect-free regions over a centimetre scale area, with sub-micrometre spatial resolution. The patterned films display tailored optical and electronic properties due to the formation of sulphur vacancy-rich areas. Moreover, the effectiveness of defect nanopatterning in tuning functional properties is demonstrated by studying the electrocatalytic activity for the hydrogen evolution reaction.

Atomic units

10.1002/smtd.202401486

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Formation of the active site structures during pyrolysis transformation of Fe-phthalocyanine into Fe-Nx-C electrocatalysts for the oxygen reduction reaction

Applied Catalysis B Environment and Energy (2023)

Mohsin Muhyuddin Enrico Berretti Seyed Ariana Mirshokraee Jacopo Orsilli Roberto Lorenzi

Fe-Nx-C electrocatalysts for the oxygen reduction reaction are typically fabricated via pyrolysis. However, the pyrolysis process is poorly understood. Therefore, a systematic investigation was initiated to elucidate the effects of the pyrolysis conditions (atmosphere and temperature) on the evolution of active sites starting from iron phthalocyanine supported over carbon black. The atomic level dispersion of Fe-Nx is sustained up to 600°C and afterward, the growth of iron oxide nanoparticles is observed. Interestingly, the different X-ray absorption spectroscopy fingerprints acquired during in-situ and ex-situ experiments indicated the bonding of oxygen as a fifth ligand on the Fe sites when exposed to the open air. The ORR activities were analyzed in acidic and alkaline media. The best electrocatalytic activity was observed for the electrocatalysts pyrolyzed at 600°C. Above this temperature, a reduction in the activity was observed. Surface-to-reactivity analysis was carried out identifying the relationship between surface chemistry/morphology and electrocatalytic activity.

Reactivity

10.1016/j.apcatb.2023.123515

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Ni-Phthalocyanine Derived Electrocatalysts for Oxygen Reduction Reaction and Hydrogen Evolution Reaction: Active Sites Formation and Electrocatalytic Activity

ACS Catalysis (2024)

Seyed Ariana Mirshokraee Mohsin Muhyuddin Nicolò Pianta Enrico Berretti Laura Capozzoli

Oxygen evolution

10.1021/acscatal.4c03814

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Citations (2)

Litchi‐derived platinum group metal‐free electrocatalysts for oxygen reduction reaction and hydrogen evolution reaction in alkaline media

SusMat (2023)

Seyed Ariana Mirshokraee Mohsin Muhyuddin Roberto Lorenzi Giorgio Tseberlidis Carmelo Lo Vecchio

Abstract Within the framework of the circular economy, the waste litchi's skins were upgraded and transformed into electrocatalysts for oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER). The waste litchi's skins were pyrolyzed, activated, and then used as carbon support for fabricating metal–nitrogen–carbons (M–N–Cs) which belong to a promising class of platinum group metal‐free electrocatalysts. The activated char was functionalized with transition metal (Fe, Ni, and Co)‐ phthalocyanine (Pc) in monometallic and bimetallic fashion by subjecting it to a thermal treatment at 600 and 900°C. The samples functionalized at 900°C showed higher performance for HER due to the formation of metal nanoparticles, whereas the samples functionalized at 600°C showed higher performance for ORR. Particularly, sample Ni–Co 900 had an overpotential of −0.38 V for HER, while the sample Fe 600 was the most active electrocatalyst for ORR by demonstrating the onset potential of ∼0.9 V (a half‐wave potential of ∼0.81 V) with the least production of unwanted peroxide anion.

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Bimetallic strip

10.1002/sus2.121

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Citations (22)

Upcycling of waste lithium-cobalt-oxide from spent batteries into electrocatalysts for hydrogen evolution reaction and oxygen reduction reaction: A strategy to turn the trash into treasure

Journal of Power Sources (2022)

Seyed Ariana Mirshokraee Mohsin Muhyuddin Riccardo Morina Lorenzo Poggini Enrico Berretti

Overpotential

Cobalt oxide

Lithium cobalt oxide

10.1016/j.jpowsour.2022.232571

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Citations (34)

Interface Analysis of MOCVD Grown GeTe/Sb2Te3 and Ge-Rich Ge-Sb-Te/Sb2Te3 Core-Shell Nanowires

Nanomaterials (2022)

Arun Kumar Seyed Ariana Mirshokraee Alessio Lamperti M. Cantoni Massimo Longo

Controlling material thickness and element interdiffusion at the interface is crucial for many applications of core-shell nanowires. Herein, we report the thickness-controlled and conformal growth of a Sb

Interface (matter)

10.3390/nano12101623

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Citations (1)

Mono-, bi- and tri-metallic platinum group metal-free electrocatalysts for hydrogen evolution reaction following a facile synthetic route

Industrial Chemistry and Materials (2023)

Seyed Ariana Mirshokraee Mohsin Muhyuddin Jacopo Orsilli Enrico Berretti Laura Capozzoli

HER electrocatalysts were synthesized starting from metal-phthalocyanine. The higher pyrolysis temperature is beneficial and associated with the formation of nanoparticles. The addition of the second and third metal is also beneficial for HER.

Platinum group

10.1039/d3im00058c

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Citations (11)

Mono-, bi- and tri-metallic Fe-based platinum group metal-free electrocatalysts derived from phthalocyanine for oxygen reduction reaction in alkaline media

Nanoscale (2024)

Seyed Ariana Mirshokraee Mohsin Muhyuddin Jacopo Orsilli Enrico Berretti Alessandro Lavacchi

A detailed investigation into Fe-based catalysts derived from phthalocyanine with mono, bi, and tri-metallic compositions is presented, focusing on how their processing and structure affect their oxygen reduction reaction activity in alkaline media.

Platinum group

10.1039/d4nr00575a

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Citations (5)