So-Called “Metal-Free” Oxygen Reduction at Graphene Nanoribbons is in fact Metal Driven

Boron- and Nitrogen-Substituted Graphene Nanoribbons as Efficient Catalysts for Oxygen Reduction Reaction

(2015) Yongji Gong et al.   CHEMISTRY OF MATERIALS

Potential of metal-free “graphene alloy” as electrocatalysts for oxygen reduction reaction

(2015) Dongsheng Geng et al.   Journal of Materials Chemistry A

Nitrogen-Doped Graphene Nanoribbons as Efficient Metal-Free Electrocatalysts for Oxygen Reduction

(2014) Mingkai Liu et al.   ACS Applied Materials & Interfaces

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

(2014) Lu Wang et al.   CHEMICAL COMMUNICATIONS

Electrochemistry of Graphene and Related Materials

(2014) Adriano Ambrosi et al.   CHEMICAL REVIEWS

Chemical Preparation of Graphene Materials Results in Extensive Unintentional Doping with Heteroatoms and Metals

(2014) Chun Kiang Chua et al.   CHEMISTRY-A EUROPEAN JOURNAL

Synthetic routes contaminate graphene materials with a whole spectrum of unanticipated metallic elements

(2014) C. H. A. Wong et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Nanostructured Nonprecious Metal Catalysts for Oxygen Reduction Reaction

(2013) Gang Wu et al.   ACCOUNTS OF CHEMICAL RESEARCH

“Metal-Free” Catalytic Oxygen Reduction Reaction on Heteroatom-Doped Graphene is Caused by Trace Metal Impurities

(2013) Lu Wang et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

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

(2013) Colin Hong An Wong et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Trace metal residues promote the activity of supposedly metal-free nitrogen-modified carbon catalysts for the oxygen reduction reaction

(2013) Justus Masa et al.   ELECTROCHEMISTRY COMMUNICATIONS

Metal-free catalysts for oxygen reduction in alkaline electrolytes: Influence of the presence of Co, Fe, Mn and Ni inclusions

(2013) Justus Masa et al.   ELECTROCHIMICA ACTA

Structure and magnetic response of a residual metal catalyst in highly purified single walled carbon nanotubes

(2013) Barbara Pacakova Bittova et al.   PHYSICAL CHEMISTRY CHEMICAL PHYSICS

Highly conductive graphene nanoribbons from the reduction of graphene oxide nanoribbons with lithium aluminium hydride

(2013) Colin Hong An Wong et al.   Journal of Materials Chemistry C

Lithium Aluminum Hydride as Reducing Agent for Chemically Reduced Graphene Oxides

(2012) Adriano Ambrosi et al.   CHEMISTRY OF MATERIALS

Chemical structures of hydrazine-treated graphene oxide and generation of aromatic nitrogen doping

(2012) Sungjin Park et al.   Nature Communications

Voltammetry of carbon nanotubes and graphenes: excitement, disappointment, and reality

(2011) Martin Pumera   CHEMICAL RECORD

Electrochemistry at Chemically Modified Graphenes

(2011) Adriano Ambrosi et al.   CHEMISTRY-A EUROPEAN JOURNAL

Regulatory Peptides Are Susceptible to Oxidation by Metallic Impurities within Carbon Nanotubes

(2010) Adriano Ambrosi et al.   CHEMISTRY-A EUROPEAN JOURNAL

Longitudinal unzipping of carbon nanotubes to form graphene nanoribbons

(2009) Dmitry V. Kosynkin et al.   NATURE

Purification of carbon nanotubes

(2008) Peng-Xiang Hou et al.   CARBON

Copper oxide nanoparticle impurities are responsible for the electroanalytical detection of glucose seen using multiwalled carbon nanotubes

(2008) Christopher Batchelor-McAuley et al.   SENSORS AND ACTUATORS B-CHEMICAL

Towards an Ultrasensitive Method for the Determination of Metal Impurities in Carbon Nanotubes

(2008) Taras Kolodiazhnyi et al.   Small