000075584 001__ 75584
000075584 005__ 20190709135433.0
000075584 0247_ $$2doi$$a10.1016/j.ijhydene.2017.02.043
000075584 0248_ $$2sideral$$a99070
000075584 037__ $$aART-2017-99070
000075584 041__ $$aeng
000075584 100__ $$aSchaefer, S.
000075584 245__ $$aRice straw-based activated carbons doped with SiC for enhanced hydrogen adsorption
000075584 260__ $$c2017
000075584 5060_ $$aAccess copy available to the general public$$fUnrestricted
000075584 5203_ $$aActivated carbons (ACs) based on rice straw (RS) were synthesised using potassium carbonate as activating agent at three different K2CO3/RS weight ratios. Morphological, chemical, structural as well as textural characterisations were carried out in order to establish relationships between the physicochemical properties of the materials and their hydrogen adsorption capacities. The ACs contained potassium and silicon as the main impurities. Si was identified by XRD in both phases of silicon dioxide and silicon carbide. The presence of SiC was particularly surprising due to the rather low activation temperature, much lower than what is usually required for SiC synthesis. ACs exhibited well-developed surface areas (approximatively 2000–2100 m2 g-1) and high micropore volumes, making them suitable for hydrogen storage applications. RS-based ACs showed higher hydrogen storage capacities than those previously obtained with KOH-activated sucrose. The latter exhibited hydrogen uptakes (excess, 10 MPa, 298 K) up to 0.55 wt. %, whereas 0.65 wt. % was measured for RS-based ACs in the same conditions. The higher hydrogen capacities and isosteric heats of adsorption found here were attributed to the presence of SiC.
000075584 536__ $$9info:eu-repo/grantAgreement/EUR/COST/MP1103
000075584 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000075584 590__ $$a4.229$$b2017
000075584 591__ $$aCHEMISTRY, PHYSICAL$$b42 / 146 = 0.288$$c2017$$dQ2$$eT1
000075584 591__ $$aENERGY & FUELS$$b24 / 97 = 0.247$$c2017$$dQ1$$eT1
000075584 591__ $$aELECTROCHEMISTRY$$b8 / 28 = 0.286$$c2017$$dQ2$$eT1
000075584 592__ $$a1.116$$b2017
000075584 593__ $$aCondensed Matter Physics$$c2017$$dQ1
000075584 593__ $$aEnergy Engineering and Power Technology$$c2017$$dQ1
000075584 593__ $$aFuel Technology$$c2017$$dQ1
000075584 593__ $$aRenewable Energy, Sustainability and the Environment$$c2017$$dQ2
000075584 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000075584 700__ $$aMuñiz, G.
000075584 700__ $$0(orcid)0000-0002-2408-2528$$aIzquierdo, M.T.
000075584 700__ $$aMathieu, S.
000075584 700__ $$aBallinas-Casarrubias, M.L.
000075584 700__ $$aGonzález-Sánchez, G.
000075584 700__ $$aCelzard, A.
000075584 700__ $$aFierro, V.
000075584 773__ $$g42, 16 (2017), 11534-11540$$pInt. j. hydrogen energy$$tInternational Journal of Hydrogen Energy$$x0360-3199
000075584 8564_ $$s229853$$uhttps://zaguan.unizar.es/record/75584/files/texto_completo.pdf$$yPostprint
000075584 8564_ $$s90276$$uhttps://zaguan.unizar.es/record/75584/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000075584 909CO $$ooai:zaguan.unizar.es:75584$$particulos$$pdriver
000075584 951__ $$a2019-07-09-11:32:52
000075584 980__ $$aARTICLE