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Updated: May 17, 2026

Hydrogen Production and Utilization in a Membrane Reactor
Published on: March 10, 2023
Parahydrogen-induced polarization in heterogeneous catalytic processes
Kirill V Kovtunov1, Vladimir V Zhivonitko, Ivan V Skovpin
1International Tomography Center, SB RAS, 3A Institutskaya St, Novosibirsk, 630090, Russian Federation.
Parahydrogen-induced polarization (PHIP) significantly boosts Nuclear Magnetic Resonance (NMR) signals. This technique is now effective in heterogeneous catalysis, enabling new applications in medical imaging and reaction studies.
Area of Science:
- Nuclear Magnetic Resonance (NMR) Spectroscopy
- Catalysis
- Hyperpolarization Techniques
Background:
- Parahydrogen-induced polarization (PHIP) enhances NMR signals by orders of magnitude.
- PHIP traditionally relies on homogeneous hydrogenation reactions.
- Recent advancements enable PHIP in heterogeneous catalytic systems.
Purpose of the Study:
- To explore the application of PHIP in heterogeneous catalysis.
- To highlight the advantages of heterogeneous PHIP over homogeneous methods.
- To present applications in sensitive NMR imaging and mechanistic studies.
Main Methods:
- Utilizing parahydrogen in catalytic hydrogenation reactions.
- Employing heterogeneous catalysts (immobilized complexes, supported metals).
- Observing enhanced NMR signals of reaction intermediates and products.
Main Results:
- PHIP demonstrated successfully in heterogeneous catalytic reactions.
- Heterogeneous PHIP offers advantages: hyperpolarized gas production, process control, and catalyst separation.
- Significant NMR signal enhancements achieved for various nuclei.
Conclusions:
- Heterogeneous PHIP is a powerful technique with broad applicability.
- The ease of separation makes it suitable for in vivo NMR imaging.
- PHIP provides insights into heterogeneous catalysis mechanisms and reactor studies.
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