@article{scholars6556, title = {The Role of Multiwall Carbon Nanotubes in Cu-BTC Metal-Organic Frameworks for CO2 Adsorption}, doi = {10.1002/jccs.201600277}, number = {12}, note = {cited By 26}, volume = {63}, pages = {1022--1032}, publisher = {Chinese Chemical Society Taiwan}, journal = {Journal of the Chinese Chemical Society}, year = {2016}, issn = {00094536}, author = {Ullah, S. and Shariff, A. M. and Bustam, M. A. and Elkhalifah, A. E. I. and Gonfa, G. and Kareem, F. A. A.}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85004147224&doi=10.1002\%2fjccs.201600277&partnerID=40&md5=0df544e36f6635cfb718f7d1f27a3ae7}, abstract = {The discovery of natural gas fields with a high content of CO2 in world gas reservoirs poses new challenges for CO2 capture. This work investigates the use of the metal-organic framework (MOF) Cu-BTC and hybrid MWCNTs@Cu-BTC for CO2 adsorption. Cu-BTC and hybrid MWCNTs@Cu-BTC were synthesized by the solvothermal method. The results of imaging of intact MOF pores in Cu-BTC and hybrid MWCNTs@Cu-BTC nanocrystals by high-resolution transmission electron microscopy (HRTEM) under liquid nitrogen conditions are presented. Physical characterizations of the solid adsorbents were made by using a selection of different techniques, including field-emission scanning electron microscopy (FESEM), X-ray powder diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), Brunauer{\^a}??Emmet{\^a}??Teller (BET) surface area, and CO2 adsorption and physisorption measurements. HRTEM and FESEM confirmed that Cu-BTC has an octahedral shape and that the surface morphology of Cu-BTC changes by the intercalation of MWCTNs. The results show that the modified Cu-BTC improved the CO2 adsorption compared to pure Cu-BTC. The increase in the CO2 uptake capabilities of hybrid MWCNTs@Cu-BTC was ascribed to the intercalation of MWCNTs with Cu-BTC crystals. The CO2 sorption capacities of Cu-BTC and hybrid MWCNTs@Cu-BTC were found to increase from 1.91701 to 3.25642 mmol/g at ambient conditions. {\^A}{\copyright} 2016 The Chemical Society Located in Taipei \& Wiley-VCH Verlag GmbH \& Co. KGaA, Weinheim} }