Bimetallic CoNi Nanoflowers for Catalytic Transfer Hydrogenation of Terminal Alkynes

Choudhary, Neha; Kumar, Viresh; Mobin, Shaikh M.

doi:10.1002/slct.202202501

Cited by 5 publications

(3 citation statements)

References 72 publications

(137 reference statements)

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“…The coulombic efficiency was obtained to be about %99%, which confirms the inordinate charge/ discharge reversibility and superiority because of CoNi nanoflowers. [67] The excellent charge/discharge reversibility or redox property was in good agreement with XPS analysis (earlier reported in our work), [42] which confirm the presence of variable oxidation states of cobalt (Co(0)/Co(ii)) and nickel (Ni(0)/Ni(ii)) in metal nanoflowers. [57,62] Additionally, the calculation of specific capacity was also calculated from the GCD curve using given equation.…”

Section: Electrochemical Studies and Effect In Different Electrolyte ...supporting

confidence: 90%

“…The bimetallic CoNi nanoflowers were synthesized and characterized by various techniques which were discussed in our previously reported work (Scheme 1). [42] Synthesized bimetallic CoNi nanoflowers were characterized using powder X-ray diffraction (PXRD) as shown in Figure S1, Supporting Information. The PXRD peaks observed at 44.02°, 5.13°, and 75.62°correspond to (111), (200), and (220) planes of both face-centered cubic (FCC) Co and FCC Ni with JCPDS nos.…”

Section: Resultsmentioning

confidence: 99%

“…The bimetallic CoNi nanoflowers were synthesized and characterized by various techniques which were discussed in our previously reported work ( Scheme 1 ). [ 42 ]…”

Section: Resultsmentioning

confidence: 99%

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Insights on Effect of Different Electrolytes on Electrochemical Performance of CoNi Nanoflower‐Based Supercapacitors

2023

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Bimetallic materials show superior properties over monometallic systems due to their synergistic effect. Herein, bimetallic CoNi nanoflowers are synthesized by a simple method and characterized via various characterization techniques such as powder X‐ray diffraction (PXRD), scanning electron microscopy, high‐resolution transmission electron microscopy, X‐ray photoelectron spectroscopy, etc. PXRD results confirm the formation of face‐centered cubic CoNi nanoflowers and morphological studies confirm the flower‐like structure of CoNi. Bimetallic CoNi nanoflowers utilized for supercapacitor applications and the effect of electrolyte cations (K+, Na+, Li+) are studied. The results reveal that LiOH shows excellent capacitance of 729.52 F g−1 (66.83 mAh g−1) at 1 A g−1. The cyclic stability of CoNi nanoflower is estimated as ≈100% after 10 000 cycles which signifies the exceptional long‐term utility of the electrode for practical application. Further, the asymmetric device is fabricated which shows the capacitance of 66.61 F g−1 and the commercial light‐emitting diode (1.8 V) delivers high energy density and power density, that is, 18.13 Wh kg−1 at 699.84 W kg−1. The nanoflower exhibits battery–supercapacitor‐type behavior with rapid charge/discharge capability with a binder‐free and additive‐free approach.

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