Embedding Pt‐SnO Nanoparticles into MIL‐101(Cr) Pores: Hydrogen Production with Low Carbon Monoxide Content from a New Methanol Steam Reforming Catalyst

Abstract

The catalyst Pt‐SnO@MIL‐101(Cr) was prepared using the cis‐PtCl(SMe2)2(SnCl3) complex as a single precursor and characterized by inductively coupled plasma optical emission spectroscopy, (ICP‐OES), X‐ray powder diffraction (XRD), BET surface area analysis (SBET), X‐ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), field‐emission scanning electron microscopy (FE‐SEM), and temperature program reduction (TPR). A new complex, cis‐PtCl(SMe2)2(SnCl3), was synthesized from the reaction of PtCl2(SMe2)2 with SnCl2 and characterized by thermogravimetric analysis (TGA), ICP‐OES, and 1H NMR spectroscopy and used as the source of metals for preparation of the catalysts. The fabricated catalyst, Pt‐SnO@MIL‐101(Cr), with 10.2%, 19.7%, and 28.9% platinum loadings were used in a steam reforming of methanol (MSR) reaction using a microstructure monolith reactor in the temperature range of 150–300 °C. A high methanol conversion with a good selectivity of H2 and low CO selectivity was achieved in light of the stability of the catalyst with a small amount of coke formation in the monolith system.

Advances and Prospects in Metal–Organic Frameworks as Key Nexus for Chemocatalytic Hydrogen Production

“…To date, two major types of catalysts have been exploited for MSR reaction, namely, copper‐based and group VIII–X metals‐based materials. [ 94 ] Although several catalysts with high catalytic activity and selectivity have been developed for MSR, [ 95 ] drawbacks of easy to make inactive and aggregate upon heating greatly restrict their catalytic performance and practical application. Recently, MOFs attracted attention in MSR reaction owing to their charming properties.…”

“…reported the first instance of using MOFs as a support for the MSR reaction. [ 94 ] PtSnO nanoparticles were introduced into the activated MIL‐101(Cr) through the liquid phase impregnation method by using the cis ‐PtCl(SMe 2 ) 2 (SnCl 3 ) as precursor. The XRD pattern of the Pt–SnO@MIL‐101(Cr) (catalyst B) matches well with that of MIL‐101(Cr), exhibiting the intact structure of MIL‐101(Cr) after introduction of the platinum and tin ( Figure a).…”

Hydrogen production using advanced reactors by steam methane reforming: A review

“…Current trends on the production of hydrogen include processes involving decomposition of ammonia, and steam reforming of ethanol and glycerol (Lytkina et al, 2019a;Saidi and Moradi, 2020;Itoh et al, 2021). In recent years, methanol steam reforming using innovative reactor configurations has also become an emerging field of research (Shtyka et al, 2018;Lytkina et al, 2019a;Lytkina et al, 2019b;Cai et al, 2019;Cao et al, 2019;Fasanya et al, 2019;Kamyar et al, 2019;…”

Bimetallic Au–Pd alloy nanoparticles supported on MIL-101(Cr) as highly efficient catalysts for selective hydrogenation of 1,3-butadiene

“…[52][53][54] These properties have enabled MIL-101(Cr) to be successfully applied in various elds, including its particularly attractive use as a supports for heterogeneous catalyst. [55][56][57][58][59][60][61][62][63][64] Recently, various metal nanoparticle (NP) catalysts supported on MIL-101(Cr) (NPs/MIL-101(Cr)), such as Au/MIL-101(Cr), 59 Pd/MIL-101(Cr), 65 Ru/MIL-101(Cr), 66 and Pt/MIL-101(Cr), 67,68 have been tested for the hydrogenation catalytic reaction. These researches have exhibited promising results in the hydrogenation of 4-nitrophenol, 59 2-butyne-1,4-diol, 65 levulinic acid, 66 cinnamaldehyde, 67 benzaldehydes, 68 and nitrobenzenes 68 with superior catalytic activity, selectivity, and stability.…”