A benign and scalable reverse water-gas shift reaction in EMIM acetate with Ru-PNP catalysts

Perla Haidée García-Ríos; Sakhitha Koranchalil; Martin Nielsen; Anders Riisager

doi:10.1039/d5cc05534b

A benign and scalable reverse water-gas shift reaction in EMIM acetate with Ru-PNP catalysts

Perla Haidée García-Ríos
, Sakhitha Koranchalil
, Martin Nielsen
, Anders Riisager^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The combination of the ionic liquid 1-ethyl-3-methylimidazolium acetate, [EMIM]OAc, and Ru-MACHO-BH catalyst facilitates efficient and scalable reverse water-gas shift (RWGS) of CO₂/H₂ mixtures under mild conditions. Optimized conditions of 150 °C and 10 : 10 bar CO₂ : H₂ achieve the highest reaction selectivity towards CO (31%) whereas 5 : 20 bar CO₂ : H₂ attains higher CO yield (26%) but also significantly promotes formic acid formation, highlighting the potential of ionic liquid/Ru-MACHO-BH as an effective and versatile hybrid system for CO₂ valorisation.

Original language	English
Journal	Chemical Communications
Volume	62
Pages (from-to)	1141–1144
ISSN	1359-7345
DOIs	https://doi.org/10.1039/d5cc05534b
Publication status	Published - 2026

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title = "A benign and scalable reverse water-gas shift reaction in EMIM acetate with Ru-PNP catalysts",

abstract = "The combination of the ionic liquid 1-ethyl-3-methylimidazolium acetate, [EMIM]OAc, and Ru-MACHO-BH catalyst facilitates efficient and scalable reverse water-gas shift (RWGS) of CO2/H2 mixtures under mild conditions. Optimized conditions of 150 °C and 10 : 10 bar CO2 : H2 achieve the highest reaction selectivity towards CO (31\%) whereas 5 : 20 bar CO2 : H2 attains higher CO yield (26\%) but also significantly promotes formic acid formation, highlighting the potential of ionic liquid/Ru-MACHO-BH as an effective and versatile hybrid system for CO2 valorisation.",

author = "Garc{\'i}a-R{\'i}os, \{Perla Haid{\'e}e\} and Sakhitha Koranchalil and Martin Nielsen and Anders Riisager",

year = "2026",

doi = "10.1039/d5cc05534b",

language = "English",

volume = "62",

pages = "1141–1144 ",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - A benign and scalable reverse water-gas shift reaction in EMIM acetate with Ru-PNP catalysts

AU - García-Ríos, Perla Haidée

AU - Koranchalil, Sakhitha

AU - Nielsen, Martin

AU - Riisager, Anders

PY - 2026

Y1 - 2026

N2 - The combination of the ionic liquid 1-ethyl-3-methylimidazolium acetate, [EMIM]OAc, and Ru-MACHO-BH catalyst facilitates efficient and scalable reverse water-gas shift (RWGS) of CO2/H2 mixtures under mild conditions. Optimized conditions of 150 °C and 10 : 10 bar CO2 : H2 achieve the highest reaction selectivity towards CO (31%) whereas 5 : 20 bar CO2 : H2 attains higher CO yield (26%) but also significantly promotes formic acid formation, highlighting the potential of ionic liquid/Ru-MACHO-BH as an effective and versatile hybrid system for CO2 valorisation.

AB - The combination of the ionic liquid 1-ethyl-3-methylimidazolium acetate, [EMIM]OAc, and Ru-MACHO-BH catalyst facilitates efficient and scalable reverse water-gas shift (RWGS) of CO2/H2 mixtures under mild conditions. Optimized conditions of 150 °C and 10 : 10 bar CO2 : H2 achieve the highest reaction selectivity towards CO (31%) whereas 5 : 20 bar CO2 : H2 attains higher CO yield (26%) but also significantly promotes formic acid formation, highlighting the potential of ionic liquid/Ru-MACHO-BH as an effective and versatile hybrid system for CO2 valorisation.

U2 - 10.1039/d5cc05534b

DO - 10.1039/d5cc05534b

M3 - Journal article

C2 - 41196010

SN - 1359-7345

VL - 62

SP - 1141

EP - 1144

JO - Chemical Communications

JF - Chemical Communications

ER -

A benign and scalable reverse water-gas shift reaction in EMIM acetate with Ru-PNP catalysts

Abstract

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