Co<sub>2</sub>B als interessanter Katalysator in der Citralhydrierung

Bratz, Kathrin; Wörz, Nicolai; Brandner, Armin; Hofmann, Kathrin; Claus, Peter; Albert, Barbara

doi:10.1002/zaac.201009099

Cited by 3 publications

(2 citation statements)

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“…Cobalt borides are compounds with the general formula Co x B y ; two main representatives are CoB and Co 2 B. It is known that cobalt(II) borides exhibit excellent catalytic activity in the production of hydrogen [ 5 , 6 , 7 , 8 , 9 ] and oxygen [ 7 , 10 , 11 , 12 , 13 ], in the liquid phase hydrogenation of citral [ 14 , 15 ], and can be used as anode materials in batteries [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

A New Approach to the Synthesis of Nanocrystalline Cobalt Boride in the Course of the Thermal Decomposition of Cobalt Complexes [Co(DMF)6]2+ with Boron Cluster Anions

et al. 2023

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In the course of the study, nanocrystalline cobalt monoboride was prepared by thermal decomposition of precursors [Co(DMF)6][An], where [An] = [B12H12]2– (1), [trans-B20H18]2– (2) or [B10Cl10]2– (3) in an argon atmosphere. Three new salt-like compounds 1–3 were prepared when Co(NO3)2 was allowed to react with (Et3NH)2[An]. Compound 1 is new; the structures of compounds 2 and 3 have been previously reported. Samples 1–3 were annealed at 900 °C in argon to form samples 1a–3a, which were characterized by single crystal XRD for 1 and powder XRD for 1–3. Powder XRD on the products showed the formation of BN and CoB for 1a in a 1:1 ratio; 2a gave a higher CoB:BN ratio but an overall decreased crystallinity. For 3a, only CoB was found. IR spectra of samples 1a–3a as well as X-ray spectral fluorescence analysis for 3a confirmed these results. The nanoparticular character of the decomposition products 1a–3a was shown using TEM; quite small particle sizes of about 10–15 nm and a quite normal size distribution were found for 1a and 2a, while the decomposition of 3 gave large particles with 200–350 nm and a broad distribution.

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Section: Introductionmentioning

confidence: 99%

A New Approach to the Synthesis of Nanocrystalline Cobalt Boride in the Course of the Thermal Decomposition of Cobalt Complexes [Co(DMF)6]2+ with Boron Cluster Anions

et al. 2023

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“…Another cobalt boride, Co 2 B, has already shown high efficiency as an electrocatalyst material for the oxygen evolution reaction ,, and high selectivity as a catalyst in reactions such as the liquid-phase hydrogenation of citral. , Amorphous Co–B powders are possible high capacity anode materials for battery applications . Mixtures of Co 2 B and Co 3 B were tested for the oxidative dehydrogenation of propane recently and showed high olefin selectivity .…”

Section: Introductionmentioning

confidence: 99%

Magnetic and Electrocatalytic Properties of Nanoscale Cobalt Boride, Co₃B

et al. 2019

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The use of low-temperature solution synthesis followed by a brief annealing step allows metastable single-phase Co3B nanoparticles to be obtained, with sizes ranging from 11 nm to 22 nm. The particles are ferromagnetic with a saturation magnetization of 91 A m 2 kg-1 (corresponding to 1.02 μB/Co) and a coercive field of 0.14 T at 5 K, retaining the semi-hard magnetic properties of bulk Co3B. They display a magnetic blocking temperature of 695 K and a Curie temperature near 710 K, but the measurement of these high-temperature properties was complicated by decomposition of the particles at these high temperatures. Additionally, the nanoparticles of Co3B were investigated as an electrocatalyst in the oxygen evolution reaction and showed a low onset potential of 1.55 V vs. RHE. XPS measurements were performed before and after the electrocatalytic measurements to study the surface of the catalyst, to pinpoint what appear to be the active surface species.

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Catalytic activity of nanoscale borides: Co2B and Ni7B3 in the liquid-phase hydrogenation of citral

Kalyon

Hofmann

Malter

et al. 2017

Journal of Catalysis

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Co₂B als interessanter Katalysator in der Citralhydrierung

Cited by 3 publications

References 2 publications

A New Approach to the Synthesis of Nanocrystalline Cobalt Boride in the Course of the Thermal Decomposition of Cobalt Complexes [Co(DMF)6]2+ with Boron Cluster Anions

A New Approach to the Synthesis of Nanocrystalline Cobalt Boride in the Course of the Thermal Decomposition of Cobalt Complexes [Co(DMF)6]2+ with Boron Cluster Anions

Magnetic and Electrocatalytic Properties of Nanoscale Cobalt Boride, Co₃B

Catalytic activity of nanoscale borides: Co2B and Ni7B3 in the liquid-phase hydrogenation of citral

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Co2B als interessanter Katalysator in der Citralhydrierung

Cited by 3 publications

References 2 publications

A New Approach to the Synthesis of Nanocrystalline Cobalt Boride in the Course of the Thermal Decomposition of Cobalt Complexes [Co(DMF)6]2+ with Boron Cluster Anions

A New Approach to the Synthesis of Nanocrystalline Cobalt Boride in the Course of the Thermal Decomposition of Cobalt Complexes [Co(DMF)6]2+ with Boron Cluster Anions

Magnetic and Electrocatalytic Properties of Nanoscale Cobalt Boride, Co3B

Catalytic activity of nanoscale borides: Co2B and Ni7B3 in the liquid-phase hydrogenation of citral

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Co₂B als interessanter Katalysator in der Citralhydrierung

Magnetic and Electrocatalytic Properties of Nanoscale Cobalt Boride, Co₃B