Keyword Plus: PURIFICATION

Ball-milled sulfur-doped graphene materials contain metallic impurities originating from ball-milling apparatus: their influence on the catalytic properties

• Chun Kiang Chua, Zdeněk Sofer, Bahareh Khezri, Richard D. Webster, Martin Pumera*
• Physical Chemistry Chemical Physics 2016, 18(27), 17875-17880

Oxidation Debris in Graphene Oxide Is Responsible for Its Inherent Electroactivity

• Alessandra Bonanni, Adriano Ambrosi, Chun Kiang Chua, Martin Pumera*
• ACS Nano 2014, 8(5), 4197-4204

Redox reaction of p-aminophenol at carbon nanotube electrodes is accelerated by carbonaceous impurities

• Xinyi Chia, Adriano Ambrosi, Martin Pumera*
• Electrochemistry Communications 2014, 38(), 1-3

Residual metallic impurities within carbon nanotubes play a dominant role in supposedly “metal-free” oxygen reduction reactions

• Lu Wang, Martin Pumera*
• Chemical Communications 2014, 50(84), 12662-12664

Highly Hydrogenated Graphene through Microwave Exfoliation of Graphite Oxide in Hydrogen Plasma: Towards Electrochemical Applications

• Alex Yong Sheng Eng, Zdeněk Sofer, Petr Simek, Jiri Kosina, Martin Pumera*
• Chemistry-A European Journal 2013, 19(46), 15583-15592

Graphene Oxide Nanoribbons from the Oxidative Opening of Carbon Nanotubes Retain Electrochemically Active Metallic Impurities

• Colin Hong An Wong, Chun Kiang Chua, Bahareh Khezri, Richard D. Webster, Martin Pumera*
• Angewandte Chemie-International Edition 2013, 52(33), 8685-8688

Carbonaceous Impurities in Carbon Nanotubes are Responsible for Accelerated Electrochemistry of Cytochrome c

• Lu Wang, Adriano Ambrosi, Martin Pumera*
• Analytical Chemistry 2013, 85(13), 6195-6197

Bioavailability of Metallic Impurities in Carbon Nanotubes Is Greatly Enhanced by Ultrasonication

• Rou Jun Toh, Adriano Ambrosi, Martin Pumera*
• Chemistry-A European Journal 2012, 18(37), 11593-11596

Chemically reduced graphene contains inherent metallic impurities present in parent natural and synthetic graphite

• Adriano Ambrosi, Chun Kiang Chua, Bahareh Khezri, Zdeněk Sofer, Richard D. Webster, Martin Pumera*
• Proceedings Of The National Academy Of Sciences Of The United States Of America 2012, 109(32), 12899-12904

Amorphous Carbon Impurities Play an Active Role in Redox Processes of Carbon Nanotubes

• Adriano Ambrosi, Martin Pumera*
• Journal Of Physical Chemistry C 2011, 115(51), 25281-25284

Impurities within carbon nanotubes govern the electrochemical oxidation of substituted hydrazines

• Emma J. E. Stuart, Martin Pumera*
• Physical Chemistry Chemical Physics 2011, 13(22), 10818-10822

Effect of Nitric Acid “Washing” Procedure on Electrochemical Behavior of Carbon Nanotubes and Glassy Carbon mu-Particles

• Uelkue Anik*, Serdar Cevik, Martin Pumera
• Nanoscale Research Letters 2010, 5(5), 846-852