1. Chemistry Department Johannes Gutenberg‐Universität Duesbergweg 10‐14 Mainz D‐55128 Germany
2. Center of Integrative Petroleum Research King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
3. Center of Excellence in Nanotechnology King Fahd University of Petroleum & Minerals Dhahran 31262 Saudi Arabia
4. Chemistry Department King Fahd University of Petroleum & Minerals (KFUPM) P.O. Box 5048 Dharan 31261 Kingdom of Saudi Arabia
5. Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
6. Federal Institute for Materials Research and Testing (BAM) Division 1.1–Inorganic Trace Analysis Richard‐Willstätter‐Straße 11 Berlin D‐12489 Germany