title: Hydrogen storage studies on palladium-doped carbon materials (AC, CB, CNMs) @ metal-organic framework-5.
abstract: Metal organic frameworks (MOFs) are a rapidly growing class of porous materials and are considered as best adsorbents for their high surface area and extraordinary porosity. The MOFs are synthesized by using various chemicals like triethylamine, terepthalic acid, zinc acetate dihydrate, chloroform, and dimethylformamide (DMF). Synthesized MOFs are intercalated with palladium/activated carbon, carbon black, and carbon nanomaterials by chemical reduction method for the purpose of enhancing the hydrogen adsorption capacities. We have observed that the palladium doped activated carbon on MOF-5 showed high hydrogen storage capacity. This may be due to the affinity of the palladium toward hydrogen molecule. The samples are characterized by X-ray diffraction, scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) surface area analysis. We have observed a clear decrease in the BET surface area and pore volume. The obtained results show a better performance for the synthesized sample. To our best knowledge, no one has reported the work on palladium-doped carbon materials (activated carbon, carbon black, carbon nanomaterials) impregnated to the metal-organic framework-5. We have attempted to synthesize carbon nanomaterials using indigenously fabricated chemical vapor deposition (CVD) unit as a support. We have observed an increase in the hydrogen storage capacities.
authors: Centre for Environment, Jawaharlal Nehru Technological University, 3rd Floor, IST campus, Kukatpally, 500085, India.
authors: V
authors: V
authors: Viditha
authors: Centre for Environment, Jawaharlal Nehru Technological University, 3rd Floor, IST campus, Kukatpally, 500085, India.
authors: K
authors: K
authors: Srilatha
authors: Centre for Environment, Jawaharlal Nehru Technological University, 3rd Floor, IST campus, Kukatpally, 500085, India. viditha.v@gmail.com.
authors: V
authors: V
authors: Himabindu
mesh_terms: D000327:Adsorption; D002244:Carbon / Q000737:chemistry*; D002606:Charcoal; D004785:Environmental Pollutants / Q000737:chemistry*; D005740:Gases / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry; D049329:Nanostructures / Q000737:chemistry; D009942:Organometallic Compounds / Q000032:analysis*; D010165:Palladium / Q000737:chemistry*; D016062:Porosity; D014961:X-Ray Diffraction
chemical_list: D004785:Environmental Pollutants; D005740:Gases; D009942:Organometallic Compounds; D002606:Charcoal; D010165:Palladium; D002244:Carbon; D006859:Hydrogen
keywords: Chemical reduction method; Hydrogen storage; Intercalation; Metal–organic framework; Palladium