Page 171 - CW E-Magazine (28-1-2025)

Special Report

catalysis. The marked improvement in
H recovery arises out of metal carbide
2
formation induced by the mechanocata-
lytic process, which does not catalyse
formation of hydrocarbons. Thus, we
have a process for net zero emissions.
(Angew. Chem. Intl. Ed., 2024, 100;
DOI: 10.1002/anie.202417644).
Boosting the catalytic
performance of core-shell
structured Ru@Pd/SBA-15
in 2-ethyl anthraquinone
hydrogenation by tuning
d-band centre initiator or zeolite alone. Cracking at of making alcohols instead of the
445°C is reported. (Ind. Eng. Chem. well-known hydroformylation reac-
Y. Zhang et al have given the prepa- Res., 2024; DOI: 10.1021/acs.iecr. tion followed by hydrogenation. Here
ration of the title catalyst for the 4c01706). CH OH is added to the C=C bond in
3
hydrogenation under reference, which Selective hydrogenation of a 100% atom efficient manner. This
is relevant in H O production. This halogenated nitroarenes is a tandem reaction as CH OH gives
3
2
2
catalyst gives a selectivity of 97.3%. CO:H in a 1:2 ratio. Mn/pincer com-
2
(J. Catalysis, 2024; DOI: 10.1016/j. G. Chen et al have worked on cost- plex catalyst is able to take up this
jcat.2024.115793; 440, Dec., 115793). effective non-precious metal catalyst daunting task. The ratio of the linear
for the title catalyst and single-atom to branched alcohols was 93:7 and
TEMPO-assisted thermal cobalt catalyst has been used. This was turnover numbers of more than 17,000
and catalytic cracking of tuned by tailoring the structure of sec- could be realised (Thus, we have a cata-
3-carene (3-C) and JP-10 to ond coordination sphere via P doping. lyst without Rh). This process does
produce low-molecular weight Synchrotron radiation-based X-ray ab- not require pressure exceeding 10 bar.
(Angew. Chem. Intl. Ed., 2024; DOI:
sorption spectroscopy was used to charac-
hydrocarbons terise catalyst. 20 examples are given 10.1002/anie.202418984).
S. Priyadarshi et al have reported the with over 99% yields at 80°C under 0.5 Advances for catalysts in one-
combo-effect of a free-radical initiator, Pa H pressure. (Angew. Chem. Intl. Ed., step oxidative esterification of
2
TEMPO (2,2,6,6- Tetramethyl-1-piperi- 2024; DOI: 10.1002/anie.202421277). aldehydes and alcohols with
dinyloxy) and a zeolite HY catalyst on Methanolysis of olefins: Low
pyrolysis of 3-C and JP-10 (exotetra- pressure synthesis of alcohols alcohols to esters
hydrodicyclopentadiene) to make hydro- by the formal addition of L. Ding et al have worked on making
carbon fuels. The combo system methanol to olefins esters without using carboxylic acids
enhances the yield of low molecular weight and have referred to the necessity of
hydrocarbons compared to thermal S. Stahl et al have come out with an the development of catalysts with high
cracking or cracking with either interesting and potentially useful way catalytic activity and a long service
life. The recent advances of the total
process have been reviewed where
one-step oxidative esterification is
realised. Heterogeneous catalysts based
on Au/Pd/Co, and Cu-based and
homogeneous catalysts are covered.
Methods of the preparation of cata-
lysts are covered. (Ind. Eng. Chem.
Res., 2024; DOI: 10.1021/acs.iecr.
4c02011).

Chemical Weekly January 28, 2025 171

Contents Index to Advertisers Index to Products Advertised