Rolf Hempelmann

Prof. Dr. Dr. h.c.

Germany

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Prof. Dr. Dr. h.c. Rolf Hempelmann is a faculty member at Saarland University and KIST Europe in Germany. His research focuses on advanced materials for energy storage, including lithium-ion batteries, ionic liquids, and electrochemistry. Recent publications explore topics such as nitrogen-doped carbon nanotubes and the influence of anion groups in ionic liquid electrolytes.

Articles (13)

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2025

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2025

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2025

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2023

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2023

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2022

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2022

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2022

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2022

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2021

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2021

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2021

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2021

Collaborators (5)

Daniel Ondo

Assistant Professor

University of Chemistry and Technology

CZECH REPUBLIC

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Patricia A. Hunt

Professor

Victoria University of Wellington

NEW ZEALAND

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Benjamin Golub

Technische Universität Braunschweig

GERMANY

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Tom Welton

Professor of Sustainable Chemistry

Imperial College London

UNITED KINGDOM

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Dietmar Paschek

University of Rostock

GERMANY

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Rolf Hempelmann

Research Interests

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Articles (13)

Degradation factors of commercial lithium-ion batteries

In Situ Formation of Nitrogen-Doped CNTs from Liquid Precursor for Improving Oxygen Reduction Activity

High-Performance PBI-EMIM-DCA Membrane for Enhanced Efficiency and Longevity in Vanadium Redox Flow Batteries

Anion and ether group influence in protic guanidinium ionic liquids

P-containing coated carbons from phosphonium ionic liquids as catalyst supports for fuel cell applications

Pairing nitroxyl radical and phenazine with electron-withdrawing/-donating substituents in “water-in-ionic liquid” for high-voltage aqueous redox flow batteries

Novel Phosphonium-Based Ionic Liquid Electrolytes for Battery Applications

Cover Feature: High‐Temperature Quantum Tunneling and Hydrogen Bonding Rearrangements Characterize the Solid‐Solid Phase Transitions in a Phosphonium‐Based Protic Ionic Liquid (Chem. Eur. J. 23/2022)

High‐Temperature Quantum Tunneling and Hydrogen Bonding Rearrangements Characterize the Solid‐Solid Phase Transitions in a Phosphonium‐Based Protic Ionic Liquid

Synthesis and electrochemistry of remotely thioether‐functionalized disilenes

Balance Between Contact and Solvent-Separated Ion Pairs in Mixtures of the Protic Ionic Liquid [Et3NH][MeSO3] with Water Controlled by Water Content and Temperature

Pressure and Temperature Dependence of Local Structure and Dynamics in an Ionic Liquid

Curled cation structures accelerate the dynamics of ionic liquids

Collaborators (5)

Daniel Ondo

Patricia A. Hunt

Benjamin Golub

Tom Welton

Dietmar Paschek

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