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Citation: WEI Hua, LU Zhenjiang, BAO Shujuan, JI Chenchen, CAI Changjun, YANG Fan. Functionalized Graphene Supported Pd Catalyst for Catalytic Oxidation of Formic Acid[J]. Chinese Journal of Applied Chemistry, ;2013, 30(11): 1354-1360. doi: 10.3724/SP.J.1095.2013.30023 shu

Functionalized Graphene Supported Pd Catalyst for Catalytic Oxidation of Formic Acid

Institute of Applied Chemistry, Xinjiang University, Urumqi 830046, China

Received Date: 8 January 2013
Revised Date: 15 March 2013

In this work,the surface of GO was functionalized by different method and used to load noble metal Pd.It is found that the surface modification of GO can effectively enhance the loading amount of Pd and reduce the Pd agglomeration on the support surface,and thereby improve the catalytic activity of Pd-based catalyst for oxidation of formic acid.The activity of Pd-based electrocatalyst toward the oxygen reductionreaction (ORR) was examined using cyclic voltammetry through roating-disk electrode measurements in 0.5 mol/L H₂SO₄ electrolyte. Under the same experimental conditions,the loading amount and the catalytic performance of Pd on graphene oxide (GO),reduced graphene oxide (RGO) and sulfonated graphene (SGO) were studied.The results show that SGO is easier to load Pd and the obtained composite catalyst for CO tolerance is also improved significantly,which may be due to the synergetic effect from the π-π bonding of graphene and the van der Waals interactions of the -SO₃H functionality,enhancing the loading and dispersion of Pd on the supporting materials effectively.
- direct formic acid fuel cell,
- graphene oxide,
- functionalized
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