Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 39 checked references that resolve
resolves10.1002/smll.201200861Nanostructured Metal‐Free Electrochemical Catalysts for Highly Efficient Oxygen Reduction
resolves10.1126/science.1168049Nitrogen-Doped Carbon Nanotube Arrays with High Electrocatalytic Activity for Oxygen Reduction
resolves10.1021/jp908067vHighly Active Nitrogen-Doped Carbon Nanotubes for Oxygen Reduction Reaction in Fuel Cell Applications
resolves10.1039/c3ta14262kA facile approach to superhydrophobic and superoleophilic graphene/polymer aerogels
resolves10.1016/j.electacta.2010.03.057Electrocatalytic activity of nitrogen doped carbon nanotubes with different morphologies for oxygen reduction reaction
resolves10.1021/ja105617zHighly Efficient Metal-Free Growth of Nitrogen-Doped Single-Walled Carbon Nanotubes on Plasma-Etched Substrates for Oxygen Reduction
resolves10.1021/nn1030127Nitrogen-Promoted Self-Assembly of N-Doped Carbon Nanotubes and Their Intrinsic Catalysis for Oxygen Reduction in Fuel Cells
resolves10.1038/srep03195Highly Efficient Oxygen Reduction Electrocatalysts based on Winged Carbon Nanotubes
resolves10.1021/jz100971vIn Search of the Active Site in Nitrogen-Doped Carbon Nanotube Electrodes for the Oxygen Reduction Reaction
resolves10.1002/advs.201400006Fluorosurfactants‐Directed Preparation of Homogeneous and Hierarchical‐Porosity CMP Aerogels for Gas Sorption and Oil Cleanup
resolves10.1038/srep00849A facile route for 3D aerogels from nanostructured 1D and 2D materials
resolves10.1038/srep00363Covalently bonded three-dimensional carbon nanotube solids via boron induced nanojunctions
resolves10.1021/nl403109gThree-Dimensional Nitrogen-Doped Multiwall Carbon Nanotube Sponges with Tunable Properties
resolves10.1039/C3MH00076ADendrimer-linked, renewable and magnetic carbon nanotube aerogels
resolves10.1021/ja0344516Individual Single-Walled Nanotubes and Hydrogels Made by Oxidative Exfoliation of Carbon Nanotube Ropes
resolves10.1002/smll.201302649Hierarchical Hydrogen Bonds Directed Multi‐Functional Carbon Nanotube‐Based Supramolecular Hydrogels
resolves10.1021/nn101187zSelf-Assembled Graphene Hydrogel <i>via</i> a One-Step Hydrothermal Process
resolves10.1021/ja907098fSimultaneous Nitrogen Doping and Reduction of Graphene Oxide
resolves10.1021/nn103584tCatalyst-Free Synthesis of Nitrogen-Doped Graphene<i>via</i>Thermal Annealing Graphite Oxide with Melamine and Its Excellent Electrocatalysis
resolves10.1021/jz402090dOxygen Reduction Electrocatalysis Using N-Doped Graphene Quantum-Dots
resolves10.1002/adma.201302786High‐Performance Oxygen Reduction Electrocatalysts based on Cheap Carbon Black, Nitrogen, and Trace Iron
resolves10.1002/anie.201309171“Metal‐Free” Catalytic Oxygen Reduction Reaction on Heteroatom‐Doped Graphene is Caused by Trace Metal Impurities
resolves10.1039/C4CC03271CResidual metallic impurities within carbon nanotubes play a dominant role in supposedly “metal-free” oxygen reduction reactions
resolves10.1021/cs300579bDetermination of Iron Active Sites in Pyrolyzed Iron-Based Catalysts for the Oxygen Reduction Reaction
resolves10.1021/ja505777vPhenylenediamine-Based FeN<sub><i>x</i></sub>/C Catalyst with High Activity for Oxygen Reduction in Acid Medium and Its Active-Site Probing
resolves10.1021/ja504696rNoble-Metal-Free Fe–N/C Catalyst for Highly Efficient Oxygen Reduction Reaction under Both Alkaline and Acidic Conditions
resolves10.1021/ja30305653D Nitrogen-Doped Graphene Aerogel-Supported Fe<sub>3</sub>O<sub>4</sub> Nanoparticles as Efficient Electrocatalysts for the Oxygen Reduction Reaction
resolves10.1021/jp0647986Carbon-Supported Manganese Oxide Nanoparticles as Electrocatalysts for the Oxygen Reduction Reaction (ORR) in Alkaline Medium: Physical Characterizations and ORR Mechanism
resolves10.1002/aenm.201200230Active MnO<sub>x</sub> Electrocatalysts Prepared by Atomic Layer Deposition for Oxygen Evolution and Oxygen Reduction Reactions
resolves10.1039/C4EE02564DPt–Ru catalyzed hydrogen oxidation in alkaline media: oxophilic effect or electronic effect?
resolves10.1021/jp210840aActivity, Selectivity, and Anion-Exchange Membrane Fuel Cell Performance of Virtually Metal-Free Nitrogen-Doped Carbon Nanotube Electrodes for Oxygen Reduction Reaction
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