Page 179 - CW E-Magazine (28-5-2024)

Special Report

There are challenges in realising high
metal loadings. This review has given
a comprehensive account of recent
methods for getting high-loading SACs
for wider applicability. A variety of appli-
cations are referred. (Ind. Chemistry &
Materials, 2023; DOI: 10.1039/D3I-
M00062A).

Highly active and stable RuO /
2
MgF catalysts for efficient HCl
2
oxidation in the fluorochemi-
cals industry (FI)
Y. Gong et al have referred to the pro-
blem of HCl with a small amount of
the HF, which is encountered in the FI.
Chlorine recycling is important. The
method of preparing the title catalyst is
reported in the paper. Tests were done
Construction of hybrid ionic The dehydrogenation temperature is with HF at 400 ppm and pronounced
liquid-catalysts for the highly low to get H . (Chem. Eng. Jl., 2024, catalytic activity and stability is
2
effective conversion of H S by 484, 15 March, 149404; DOI: 10.1016/j. reported. (Cat. Sci. Technol., 2024;
nitriles into thioamides 2 cej.2024.149404). DOI: 10.1039/D3CY01749D).
W. Xiong et al have reported chemical Dehydration of glycerol (G) One-pot mechano-chemical
modification of D101-based hybrid ILs to acrolein (A) hydrogenation and acetylation
for the title reactions. D101-(PMDE- of 4-nitrophenol (NP) to 4-amino-
TA) (DMG) gave an impressive activity C. Su et al have reported the use of BPO 4 phenol (AP) and paracetamol
and could be easily recovered and recy- catalyst, which gives yield of A at 80%
and robust stability during 425 hours test. (PA)
cled. (AIChE Jl., 2023; DOI: 10.1002/
aic.18299). This is a green, efficient process. (Chem. J. Park et al have used the title pro-
Eng. Jl., 2024, 483, 1 March, 149273;
Continuous hydrogenation DOI: 10.1016/j.cej.2024.149273). cess in a ball mill reactor with H gas
2
flowing through the reactor at ambient
of N-Ethyl carbazole (EC) in a temperature and pressure in the pre-
micro-packed bed reactor for Recent progress in high-loading sence of Pd/C catalyst and Ac O. Thus,
2
H storage single-atom catalyst (SAC) and simultaneous hydrogenation and acety-
2
[Hydrogen as an energy source is now their applications lation occurs under optimal conditions.
under intense discussion. Ammonia SACs are attracting attention due to (Green Chem., 2024; DOI: 10.1039/
to freight H has been covered in this their high catalytic activity, high metal D3GC04281B).
2
column. The use of dibenzyl toluene has atom utilisation efficiency, and well-
also been covered in this column.] defined and configurable active sites. Propane (P) to acetone (A)
Y. Fan et al have referred to EC as a A. Rogolino et al have reported an inter-
promising alternative for liquid organic esting and potentially useful way of con-
H carriers. These authors have worked verting P to A where FeCl in acetonitrile
3
2
on 1%Ru/Al O as catalyst, which gave is used and photocatalysis is invoked to
2
3
100% conversion of EC with a selec- oxidise P to A under aerobic conditions.
tivity of 99.41% of dodecahydro-N-EC, This is done at room temperature and
which as 5.79wt% H storage capacity. using visible-light irradiation. 100% con-
2
This has been realised at 80 C and 4 MPa version of P is reported with 67% selec-
o
pressure. A kinetic model is reported. tivity for A. (ACS Catal., 2023, 13, 8662).
Chemical Weekly May 28, 2024 179

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