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Special Report Special Report

presence of H O . (J. Catalysis, 2024, Ultrafi ne Pd nanoparticles Tailoring vibrational excita- CFD – population balance model cou- aliphatic primary amines, without high Alkene isomerisation cata-
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435, July, 115546: DOI: 10.1016/j. deposited on Ni, N co-doped tion pathways for high-yield pled model was adopted. Information pressure H , using a Mn-based catalyst. lysed by a superbasic sodium
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Jcat.2024.115546). carbon to boost dehydroge- oxidation of methane to metha- entropy was developed. Based on the 98% yields with broad substrates scope amide (SA)
2,6-Dimethylnaphthalene nation effi ciency of per- nol modelling, operating parameters were were realised at low catalyst loadings.
established. (Ind. Eng. Chem. Res., (Angew. Chem. Intl. Ed., 2024; DOI:
(DMN) to 2,6-Naphthaleendi- hydro-N-phenylcarbazole [The direct conversion of methane to 2024; DOI: 10.1021/acs.iecr.4c01219). 10.1002/anie.202318763). A. Tortajada et al have used SA in place
of transition metals as catalysts for
carboxylic acid (NDCA) (PHPC) methanol continues to attract attention in
[This column has covered some papers view of its importance and this column Amphiphilic Covalent Or- Photocatalytic production of making internal olefi ns. Bulky sodium
Polyethylene naphthalate (PEN) is on the use of H , carriers for transport- has covered this topic.] ganic Framework (COF) ethanolamines and ethylenedi- amide NaTMP (TMP is 2,2,6,6-tetra-
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an extraordinary polyester, which has ing H such as toluene, dibenzyltoluene, C.R. Nallapareddy and T.C. Under- methylpiperidine) when partnered
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good barrier properties and can be carbazole, etc.] wood have come out with a new title nanoparticles for Pickering amines from bio-polyols over by tridentate Lewis donor PMDETA
retorted at higher temperature compared strategy and assessed conditions which Emulsion Catalysis (PEC) a Cu/TiO catalyst (N,N,N’,N”,N”-pentamethyldiethylene-
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to PET and thus sterilised. The key raw L. Li et al have worked on PC where prevent overoxidation. In a pioneering with size selectivity M. Liu et al have reported a 60% yield triamine) allows the above isomeri-
material is NDCA, which is obtained PHPC becomes H carrier and have way these authors show how molecular of ethanolamines and ethylenediamines sation under mild conditions. Even
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from DMN. reported dehydrogenation characteri- H. Zou et al have worked PEC where over a multifunctional Cu/TiO cata- unactivated olefi ns, allyl amines, and
stics of 3 wt% Pd/Ni@NC-10, which COF nanoparticles were constructed 2 allyl ethers could be handled. (Angew.
L. Chen et al have reported kinetic gives 6.48 wt% H release. The cata- using highly hydrophobic monomers lyst. This catalyst enables a tandem Chem. Intl. Ed., 2024; DOI: 10.1002/
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modelling of liquid phase oxidation of lyst has good structural stability, dura- as linkers and these were then deve- process photocatalytic polyol C-C anie.202407262).
DMN to DMCA, akin to p-xylene to bility and recyclability. (Chem. Eng. loped as a new class of solid surfactants. bond cleavage and reductive amination
terephthalic acid, where Co/Mn/Br are Jl., 2024, 492, 15 July, 152089; DOI: in one-pot at room temperature. Various Application of Ce modifi ed
used as catalysts in acetic acid/water as 10.1016/j.cej.2024.152089). bio-polyols and amines work. (Angew. zeolite to improve the perfor-
solvent and air as oxidant. The effects Chem. Intl. Ed., 2024; DOI: 10.1002/ mance of cresol isomerisation
of catalysts, temperature and water con- Catalytic synthesis of carboxy- anie.202315795).
tent were investigated. These authors lic acids from oxygenated Z. Dong et al have reported the deve-
have provided data to give insights into substrates using CO and H Selective hydrogenation of lopment of the title catalyst and have
industrial reactor design and process as C1 building blocks 2 adiponitrile (AD) to hexam- emphasised the importance of the cata-
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optimisation. (Ind. Eng. Chem. Res., 2024; ethylenediamine (HMDA) by lytic process, which is clean. Thus,
DOI: 10.1021/acs.iecr.4c01420). supported Co catalyst under TiO catalyst gives 100% selectivity to
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M.V. Solmi et al have investigated alkali-free conditions o-cresol. Isomerisation of o-cresol to m
The future of computational the catalytic system based on Rh/ excitations and reaction time scales can and p isomers is covered in this part.
catalysis (CC) TPP for the synthesis of aliphatic be tailored in thermal non-equilibrium W. Yang et al have reported that the title Modifi cations of ZSM catalyst are also
carboxylic acids from readily avail- to break limit. Vibrational excitations After implanting Pd nanoparticles cata- reaction is important in making engineer- covered. (Applied Catalysis A: General,
J. Sauer has mentioned that DFT-D will able oxygenated substrates, H and have been synchronised with active lysts were obtained which displayed ing plastics (polyamides). Co catalysts 2024, 683, 5 Aug., 119832; DOI:
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remain the work horse of computational non-toxic renewable CO . 2-Butanol product removal in a one-pot reactor to 3.9 times higher catalytic effi ciency with fi ne-tuned Co-support interaction 10.1016/j.apcata.2024.119832).
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heterogeneous catalysis. The deve- and 1-butanol were used and reversed control the accumulation of methanol than traditional amphiphilic solid cata- was developed and fully characterised
lopment in the progress in computer water gas shift reaction is involved and extend its high selectivity of over lysts with surface modifi cations in the by different spectroscopic methods. Alkylation of phenol with
technology and algorithm will allow for carbonylation. Here acid catalysed 30% at CH conversion exceeding 50%. biphasic oxidation reaction of alcohols. 85.4% yield of HMDA is reported, and methanol
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climbing up the Jacobs ladder to higher dehydration of alcohols is involved The highest methanol yield was 21.4% (Angew. Chem. Intl. Ed., 2024; DOI: activity is retained even after fi ve reac-
rungs. The future is shaped by machine followed by hydroxycarbonylation. in a single-step methane conversion 10.1002/anie.202314650). tion cycles. (Ind. Eng. Chem. Res., 2024; N. Liu et al have evaluated different
learning. Comparison with experiments A broad range of alcohols, including at near-atmospheric conditions. (ACS DOI: 10.1021/acs.iecr.4c00832). molecular sieves for the title alkylation
has made CC relevant. (J. Catalysis, bio-based, are considered. (Green Sustainable Chem. Eng., 2024; DOI: Mn-catalysed mono-methy- to give p-cresol. The catalytic activity
2024; DOI: 10.1016/j.jcat.115482; 433, Chem., 2024; DOI: 10.1039/D4GC 10.1021/acssuschemeng.4C01595). lation of aliphatic primary Catalytic transfer vinylation of molecular sieves is closely related to
May, 115482). 01732C). amines without the requirement of alcohols their acidic site number, specifi c surface
Study of the mixing degree in of external high pressure H area, and pore structure. ZSM-5 has a
the cyclone reactor for alkyla- 2 S. Opacak and S. Tin have reviewed relatively small amount of strong acid
tion catalysed by ionic liquid J. Ji et al have referred to the normal this subject summarising the studies on as well as a small pore size, and should
(IL) based on the information practice for the title reaction, where transition metal catalysts using vinyl be favourable for the title reaction. Cata-
entropy noble metal catalysts and high pressure ethers and vinyl acetate as vinylating lyst characterisation was done. The
H are required for realising satisfac- agents. Hg, Pd, Ir and Au catalysts are deactivation of the ZSM-5 was due to
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L. Zhu et al have reported a new liq- tory yields and selectivity. These au- discussed in detail and selective exam- coke deposition and pore blockage on
uid-liquid cyclone reactor (LLCR) for thors have developed an approach for ples are reported. (Adv. Syn. Catalysis, the active site and it could be regener-
improved mixing for IL alkylation. the selective coupling of methanol and 2024; DOI: 10.1002/adsc.202400514). ated, which resulted in the reduction

164 Chemical Weekly September 24, 2024 Chemical Weekly September 24, 2024 165

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