Synthesis and characterization of fibrous nickel hydroxide obtained from spent nickel catalyst

Patnaik, Pinak; Biswal, Anil Kumar; Tripathy, B.C.; Pradhan, Sangitarani; Dash, Barsha; Sakthivel, R.; Subbaiah, T.

doi:10.1016/s1003-6326(13)62823-x

Cited by 10 publications

(1 citation statement)

References 13 publications

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“…04-0850), it can be identified that the Ni-P 1.5 /T 160 /H 15 is nickel hydroxide [Ni(OH) 2 ·0.75H 2 O]. This result indicates that Ni(OH) 2 ·0.75H 2 O formed at above low reaction temperature is the precursor of Ni crystals, thus explains the reason that the morphology of Ni-P 1.5 /T 160 /H 15 is similar to that of Ni-P 1.5 /T 200 /H 15 [ 25 , 26 , 27 ]. The XRD patterns for Ni-P 1.5 /T 160 /H 15, Ni-P 1.5 /T 200 /H 10 and Ni-P 1.5 /T 200 /H 15 are further exhibited in Figure S1 and S2 (Supplementary Materials) .…”

Section: Resultsmentioning

confidence: 91%

Influence of PEG Stoichiometry on Structure-Tuned Formation of Self-Assembled Submicron Nickel Particles

Wang

Yang

et al. 2018

Materials

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Self-assembled submicron nickel particles were successfully synthesized via the one-step surfactant-assisted solvothermal method. The impact of surfactant and reducing agent stoichiometry is investigated in this manuscript. Different morphologies and structures of Ni particles, including flower-like nanoflakes, hydrangea-like structures, chain structures, sphere-like structures, and hollow structures were prepared through different processing conditions with two parameters such as temperature and time. Based on scanning electron microscopy (SEM), X-ray diffraction (XRD), thermal gravimetric analysis (TGA) and vibrating sample magnetometry (VSM), the submicron nickel particles show good saturation magnetization and excellent thermal stabilities with a possible growth mechanism for the variety of the structure-tuned formation. Importantly, the microwave absorption properties of the submicron nickel particles were studied. The lowest reflection loss of Ni-P9/T200/H15 with a thin layer thickness of 1.7 mm can reach −42.6 dB at 17.3 GHz.

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Section: Resultsmentioning

confidence: 91%