@article {43823, title = {Low-dimensional hybrid perovskites as high performance anodes for alkali-ion batteries}, journal = {Journal of Materials Chemistry A}, volume = {5}, year = {2017}, month = {SEP}, chapter = {18634-18642}, abstract = {

State-of-the-art Li (or Na) ion batteries work by insertion/extraction of the alkali metal ions into a porous electrode material, where the overall capacity is strongly dependent on the accessibility of the host material interior to the ions. On the other hand, the performance stability depends on various factors governed by the specific constitution of the electrode. Here we show that molecularly engineered low-dimensional hybrid perovskites can work as excellent anode materials for alkali-ion batteries. We measure a high reversible capacity of 646 mA h g(-1) at 100 mA g(-1) with good stability tested up to 250 cycles for the benzidine mediated lead iodide based 1D system. An ex situ analysis of the electrodes reveals that the storage primarily occurs via the Li-x(or Na-x)Pb alloying/de-alloying process. We anticipate that these results open a new direction for the use of low-dimensional hybrid perovskites for energy storage applications.

}, keywords = {Generation, Inorganic-Organic Hybrid, Lead Iodide, lithiation-intramolecular electrophilic reaction, Na-Air Battery, Negative Electrodes, Organometal Halide perovskites, PB, Sequential Deposition, Solar-cells}, issn = {2050-7488}, doi = {10.1039/c7ta04529h}, author = {Tathavadekar, Mukta and Krishnamurthy, Shrreya and Banerjee, Aparna and Nagane, Satyawan and Gawli, Yogesh and Suryawanshi, Anil and Bhat, Suresh and Puthusseri, Dhanya and Mohite, Aditya D. and Ogale, Satishchandra} } @article {43888, title = {TiO2/RGO composites: Its achievement and factors involved in hydrogen production}, journal = {Renewable \&sustainable energy reviews}, volume = {76}, year = {2017}, month = {SEP}, pages = {1384-1392}, type = {Article}, abstract = {

The immense potential shown by TiO2 to participate as a designer material resulting into a new class of high performing photocatalyst has acclaimed it to become an important player in the designing and synthesis of various solar harvesting materials. This role has further been explored by the introduction of graphene into TiO2 matrix. TiO2/reduced graphene oxide (TiO2/RGO) or TiO2/graphene (TiO2/GR) has shown its prospects or relevance to be considered as the next generation photocatalyst for hydrogen production by its reported values in terms of producing hydrogen gas. Hence, there is a requirement of having a detailed up to date write up on the work done in this area in terms of its synthetic procedures, properties and its effect on hydrogen production. Herein, we discuss the different methods involved in the synthesis of such highly efficient materials followed by a brief explanation on its structural and morphological properties. Furthermore, a comparative study on the recent developments in terms of hydrogen evolution efficiency along with a mechanistic approach is also described. Finally, the current challenge and possibility of the future development in this direction is emphasized.

}, keywords = {Au-tio2 Photocatalysts, Evolution, Generation, graphene, Hydrogen generation, Nanocomposite, Nitrogen-doped Tio2, Photocatalysis, Photocatalytic H-2 Production, Recent Progress, Reduced graphene oxide, TiO2, Tio2-graphene Nanocomposites, Visible-light Irradiation, Water}, issn = {1364-0321}, doi = {10.1016/j.rser.2017.03.1}, author = {Gupta, Bhavana and Melvin, Ambrose A.} }