Sergei Cherniak

Effect of promoters on the performance of Cu-based catalysts in CO₂ thermocatalytic hydrogenation

CO₂ rational utilization nowadays is one of the most important goals for the scientists and engineers due to the global warming. The problem is that the CO₂ molecule is very stable and difficult to convert to other compounds. In this respect, transformation of CO₂ into CO via the reverse water gas shift (RWGS) reaction is a promising route, because the resulting carbon monoxide can be used as a feedstock to produce various value-added chemicals¹.

At the same time, the thermodynamics of RWGS are favourable only at elevated temperatures and low pressure since otherwise CO₂ methanation and methanol production reactions take place. However, for practical applications a high pressure and low temperatures are required to reach higher productivity. Another issue is that mainly noble metal catalysts, such as Pd- and Pt- based systems, are used for this reaction due to their stability in severe conditions, but their practical application is hindered by the high cost. In the case of non-precious metals, Cu-based catalysts have been considered as promising candidates for this reaction because of the high activity, selectivity, and relatively low cost.

Copper, using it alone, possesses noticeable hydrogenation ability that can drive the reaction towards either hydrocarbons or methanol. Hence, promoters are necessary to direct the process to the desirable route. My work is dedicated to the investigation of the effect of different promoters on the structure, performance, and stability of Cu-based catalysts in RWGS reaction at high pressure. To achieve it, study of Cu-promoter interactions, effect of promoter nature and concentration will be realized.

References

[1]       Liu, HX., Li, JY., Qin, X. et al. Pt_n–O_v synergistic sites on MoO_x/γ-Mo₂N heterostructure for low-temperature reverse water–gas shift reaction. Nat Commun 13, 5800 (2022).

C.V.

2023 – present time

Postdoctoral fellow, Materials Chemistry and Catalysis (MCC), Utrecht University, The Netherlands

Project: Thermal catalytic conversion of CO₂ over Cu-based catalysts (TotalEnergies-supported).

Supervisor: Prof. Dr. Petra de Jongh

2021 – 2023

Postdoctoral Fellow, CNRS, UCCS Laboratory, Lille, France

Project: “Production of synthetic renewable aviation fuel from CO₂ and H₂
(TAKE-OFF)”

Topic: Light olefin synthesis by CO₂ methanol-mediated hydrogenation using bifunctional catalysts.

Supervisors: Dr. A. Khodakov, Dr. V. Ordomsky

2018 – 2020

Researcher, Laboratory of Catalysis and Gas Electrochemistry, Department of Chemistry, Moscow State University.

Topic: New carbon nanomaterials for catalysis and energy storage.

2013-2017

PhD degree in physical chemistry at the Chemistry Department of Moscow State University and Kurnakov Institute of General and Inorganic Chemistry.

Title: “Effect of support functionalization on structure and properties of Co/CNT system in hydrogenation of carbon oxides”.

Supervisors: Dr. A. Ivanov, Dr. E. Suslova.

2011-2013

Young Researcher (SEM operator, investigation of the materials for supercapacitors), “Global SO” R&D company, Russia.

2005 – 2011

MSc (specialist) in physical chemistry at the Department of Chemistry, Moscow State University.

25 October 1988

Born in Moscow, Russia

Links

LinkedIn, ResearchGate, Scopus, WoS, Google scholar