Immobilization and activation of cobalt-amine catalyst on NH4OH-treated activated carbon for ethylene dimerization

Kiani, Daniyal; Baltrušaitis, Jonas

doi:10.1016/j.cattod.2020.04.062

Cited by 7 publications

(2 citation statements)

References 85 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[7] In the solid-state UV-vis spectrum, an additional absorption in the range of 420-475 nm is observed, which corresponds to the d-d transition of six-coordinated Co(III) (Figure S1B, Supporting Information). [8] The XRD patterns of MOFs 1 and 2 in the (110) plane are consistent with those simulated from the reported homobimetallic 2D MOFs [Zn 2 (ZnTCPP)] and [Co 2 (CoTCPP)] (Figure 1A). [6] Therefore, we believe that MOF 1 maintains the 2D structure assembled from ZnTCPP and paddle-wheel [Co 2 (-CO 2 ) 4 ] SBUs.…”

Section: Synthesis and Characterization Of Mofsupporting

confidence: 86%

2D Zn‐Porphyrin‐Based Co(II)‐MOF with 2‐Methylimidazole Sitting Axially on the Paddle–Wheel Units: An Efficient Electrochemiluminescence Bioassay for SARS‐CoV‐2

Zhu

et al. 2022

Adv Funct Materials

View full text Add to dashboard Cite

High electrocatalytic activity with tunable luminescence is crucial for the development of electrochemiluminescence (ECL) luminophores. In this study, a porphyrin‐based heterobimetallic 2D metal organic framework (MOF), [(ZnTCPP)Co 2 (MeIm)] (1), is successfully self‐assembled from the zinc(II) tetrakis(4‐carboxyphenyl)porphine (ZnTCPP) linker and cobalt(II) ions in the presence of 2‐methylimidazole (MeIm) by a facile one‐pot reaction in methanol at room temperature. On the basis of the experimental results and the theoretical calculations, the MOF 1 contains paddle–wheel [Co 2 (‐CO 2 ) 4 ] secondary building units (SBUs) axially coordinated by a MeIm ligand, which is very beneficial to the electron transfer between the Co(II) ions and oxygen. Combining the photosensitizers ZnTCPP and the electroactive [Co 2 (‐CO 2 ) 4 ] SBUs, the 2D MOF 1 possesses an excellent ECL performance, and can be used as a novel ECL probe for rapid nonamplified detection of the RdRp gene of SARS‐CoV‐2 with an extremely low limit of detection (≈30 aM).

show abstract

Section: Synthesis and Characterization Of Mofsupporting

confidence: 86%

2D Zn‐Porphyrin‐Based Co(II)‐MOF with 2‐Methylimidazole Sitting Axially on the Paddle–Wheel Units: An Efficient Electrochemiluminescence Bioassay for SARS‐CoV‐2

Zhu

et al. 2022

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…We attribute the bands above 3000 cm -1 to O-H stretching at ~ 3500 cm -1 and N-H stretching at ~ 3300 cm -1 . 8,12 The ~1520 cm -1 and ~1300 cm -1 bands are attributed to N-O stretching from the nitrate (NO3) ligand of bidentate and monodentate nitrates, respectively. 7,8,[13][14][15] The time sequence plot shows e-beam exposure on the indium nitrate hydrate resist induced loss of O-H, N-H, and nitrate species within the first minute of the exposure.…”

Section: Chemical Changes During Solubility Switchmentioning

confidence: 99%

Indium nitrate hydrate resist characteristics evaluated by low-energy electron beam exposure

Valdez,

Joshi-Imre,

Bonner

et al. 2024

Advances in Patterning Materials and Processes XLI

View full text Add to dashboard Cite

We investigate indium nitrate hydrate films as a potential extreme ultraviolet (EUV) resist using electron beam (e-beam) exposure. Indium has an EUV absorption cross-section comparable to tin, the metal element in the state-of-the-art inorganic EUV resists. We choose indium nitrate salts as the metal precursor to minimize residual carbon in the resist. With a calibrated e-beam flood gun, we test the solubility switch in indium nitrate hydrate films as a function of e-beam energy. The resist becomes insoluble upon exposure to the e-beam, exhibiting a negative tone characteristic. The solubility switch occurs for e-beam energy from 500 eV down to 92 eV, the energy of the EUV photons. Furthermore, to determine the mechanism behind the solubility switch, we study the chemical changes upon e-beam exposure using operando Fourier transform infrared spectroscopy and residual gas analysis. The resists show similar optical contrast and nitric oxide release for three post-application bake (PAB) conditions. The sensitivity and contrast of indium nitrate hydrate are determined from the dose curves obtained using electron beam lithography (EBL) and e-beam flood gun. We obtained an average sensitivity of 226 ± 46 µC/cm 2 from four EBL experiments and a contrast of γ = 1.3 ± 0.3. The results from the e-beam flood gun have a sensitivity of 295 µC/cm 2 and γ = 1.0. A benchmarking experiment was also performed using an e-beam flood gun on organotin (SnOxo) resist, which has a sensitivity of 165 µC/cm 2 and  = 1.6. The similar characteristics between these two resists indicate that indium nitrate hydrate films hold high promise to be a sensitive EUV resist.

show abstract

Structure-Performance Evolution of Cobalt-Ammonia Activated Carbon Catalyst for Ethylene Oligomerization

Zhu

et al. 2021

Catal Lett

View full text Add to dashboard Cite

Immobilization and activation of cobalt-amine catalyst on NH4OH-treated activated carbon for ethylene dimerization

Cited by 7 publications

References 85 publications

2D Zn‐Porphyrin‐Based Co(II)‐MOF with 2‐Methylimidazole Sitting Axially on the Paddle–Wheel Units: An Efficient Electrochemiluminescence Bioassay for SARS‐CoV‐2

2D Zn‐Porphyrin‐Based Co(II)‐MOF with 2‐Methylimidazole Sitting Axially on the Paddle–Wheel Units: An Efficient Electrochemiluminescence Bioassay for SARS‐CoV‐2

Indium nitrate hydrate resist characteristics evaluated by low-energy electron beam exposure

Structure-Performance Evolution of Cobalt-Ammonia Activated Carbon Catalyst for Ethylene Oligomerization

Contact Info

Product

Resources

About