@article{LaiFengHeietal.2019,
  author    = {Lai, Feili and Feng, Jianrui and Hei, Tobias and Wang, Gui-Chang and Adler, Peter and Antonietti, Markus and Oschatz, Martin},
  title     = {Strong metal oxide-support interactions in carbon/hematite nanohybrids activate novel energy storage modes for ionic liquid-based supercapacitors},
  series = {Energy Storage Materials},
  volume    = {20},
  journal   = {Energy Storage Materials},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2405-8297},
  doi       = {10.1016/j.ensm.2019.04.035},
  pages     = {188 -- 195},
  year      = {2019},
  abstract  = {Strong metal oxide-support interaction is crucial to activate high energy storage modes of carbon-supported hybrid electrodes in ionic liquid-based supercapacitors. Although it is known that conductive supports can influence the electrochemical properties of metal oxides, insights into how metal oxide-support interactions can be exploited to optimize joint energy storage properties are lacking. We report the junction between alpha-Fe2O3 nanosplotches and phosphorus-doped ordered mesoporous carbon (CMK-3-P) with strong covalent anchoring of the metal oxide. The oxide-carbon interaction in CMK-3-P-Fe2O3 is strengthening the junction and charge transfer between Fe2O3 and CMK-3-P. It enhances energy storage by intensifying the interaction between ionic liquid ions and the surface of the electrode. Density functional theory simulations reveal that the strong metal oxide-support interaction increases the adsorption energy of ionic liquid to -4.77 eV as compared to -3.85 eV for a CMK-3Fe(2)O(3) hybrid with weaker binding. In spite of the lower specific surface area and apparently similar energy storage mode, the CMK-3-P-Fe2O3 exhibits superior electrical double-layer capacitor performance with a specific capacitance of 179 F g(-1) at 2 mV s(-1) (0-3.5 V) in comparison to Fe2O3-free CMK-3 and CMK-3-P reference materials. This principle for design of hybrid electrodes can be applicable for future rational design of stable metal oxide-support electrodes for advanced energy storage.},
  language  = {en}
}
@article{KhareRubySonkaria2012,
  author    = {Khare, Varsha and Ruby, Christian and Sonkaria, Sanjiv},
  title     = {A green and sustainable nanotechnology role of ionic liquids},
  series = {International journal of precision engineering and manufacturing},
  volume    = {13},
  journal   = {International journal of precision engineering and manufacturing},
  number    = {7},
  publisher = {Korean Society of Precision Engineering},
  address   = {Seoul},
  issn      = {2234-7593},
  doi       = {10.1007/s12541-012-0160-x},
  pages     = {1207 -- 1213},
  year      = {2012},
  abstract  = {In the present study, the effects of ionic liquids (ILs) on the stability of nanoparticles in several IL compositions were investigated. In this context, we examined the primary role of ILs in the synthesis of metal/metal oxide nanoparticles and their dispersions extensively. However, the focus of the discussion in this communication centers mainly on the effect of EMIM Ethyl Sulfate on growth and stability of nanoparticles. The dispersion properties of ILs based on their ability to aid the synthesis of uniformly dispersed nanoparticles have been further explored to produce nanoparticles of an effective catalyst useful in water purification, soil remediation and battery applications. Two independent protocols were developed for the synthesis of nanoparticles, namely (a) one pot process via chemical reduction (b) dispersion of the inorganic material in ILs. The protocols are simple, sustainable and environmentally friendly because the processes are conducted in ILs as harmless non-toxic green solvent materials. The catalysts were analyzed by x-ray diffraction, electron microscopy, UV visible spectroscopy and dynamic light scattering as the main methodologies.},
  language  = {en}
}
@article{FrascaRojasSalewskietal.2012,
  author    = {Frasca, Stefano and Rojas, Oscar and Salewski, Johannes and Neumann, Bettina and Stiba, Konstanze and Weidinger, Inez M. and Tiersch, Brigitte and Leimk{\"u}hler, Silke and Koetz, Joachim and Wollenberger, Ursula},
  title     = {Human sulfite oxidase electrochemistry on gold nanoparticles modified electrode},
  series = {Bioelectrochemistry : an international journal devoted to electrochemical aspects of biology and biological aspects of electrochemistry ; official journal of the Bioelectrochemical Society},
  volume    = {87},
  journal   = {Bioelectrochemistry : an international journal devoted to electrochemical aspects of biology and biological aspects of electrochemistry ; official journal of the Bioelectrochemical Society},
  publisher = {Elsevier},
  address   = {Lausanne},
  issn      = {1567-5394},
  doi       = {10.1016/j.bioelechem.2011.11.012},
  pages     = {33 -- 41},
  year      = {2012},
  abstract  = {The present study reports a facile approach for sulfite biosensing, based on enhanced direct electron transfer of a human sulfite oxidase (hSO) immobilized on a gold nanoparticles modified electrode. The spherical core shell AuNPs were prepared via a new method by reduction of HAuCl4 with branched poly(ethyleneimine) in an ionic liquids resulting particles with a diameter less than 10 nm. These nanoparticles were covalently attached to a mercaptoundecanoic acid modified Au-electrode where then hSO was adsorbed and an enhanced interfacial electron transfer and electrocatalysis was achieved. UV/Vis and resonance Raman spectroscopy, in combination with direct protein voltammetry, are employed for the characterization of the system and reveal no perturbation of the structural integrity of the redox protein. The proposed biosensor exhibited a quick steady-state current response, within 2 s, a linear detection range between 0.5 and 5.4 mu M with a high sensitivity (1.85 nA mu M-1). The investigated system provides remarkable advantages in the possibility to work at low applied potential and at very high ionic strength. Therefore these properties could make the proposed system useful in the development of bioelectronic devices and its application in real samples.},
  language  = {en}
}
@misc{LiTaubert2009,
  author    = {Li, Zhonghao and Taubert, Andreas},
  title     = {Cellulose/gold nanocrystal hybrids via an ionic liquid/aqueous precipitation route},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-45046},
  year      = {2009},
  abstract  = {Injection of a mixture of HAuCl4 and cellulose dissolved in the ionic liquid (IL) 1-butyl-3-methylimidazolium chloride [Bmim]Cl into aqueous NaBH4 leads to colloidal gold nanoparticle/cellulose hybrid precipitates. This process is a model example for a very simple and generic approach towards (noble) metal/cellulose hybrids, which could find applications in sensing, sterile filtration, or as biomaterials.},
  language  = {en}
}