A solid oxide carbon fuel cell operating on pomelo peel char with high power output. (18th May 2018)

• Record Type: Journal Article
• Authors: An, Wenting; Sun, Xiaojie; Jiao, Yong; Julião, Paulo Sérgio Barros; Wang, Wei; Wang, Songbai; Li, Si‐Dian; Shuang, Shaomin
• Other Names: Shao Zongping guestEditor.; Ni Meng guestEditor.
• Is Part Of: International journal of energy research. Volume 43:Number 7(2019)
• Page Start: 2514
• Page End: 2526
• Publication Date: 2018-05-18
• Subjects: Boudouard gasification -- direct carbon fuel cell -- high power output -- inherent catalyst -- pomelo peel biochar -- reticulated foam carbon -- solid oxide electrolyte; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Power resources -- Research -- Periodicals; 621.042
• DOI: 10.1002/er.4097
• Languages: English
• ISSNs: 0363-907X

Abstract

Summary: The pomelo peel char (PC) was prepared and used as fuel for solid oxide electrolyte direct carbon fuel cells with nickel‐yttrium stabilized zirconia anode, thin‐film YSZ electrolyte, and La0.8 Sr0.2 MnO3 cathode. The power densities of fuel cells operating on PC and catalyst‐loaded PC (PCC) fuels achieved 309 and 518 mW cm −2 at 850°C, respectively, which are among the highest power densities reported in the literature on DCFCs. The PC exhibited superior gasification reactivity than coal char due to its unique reticulated foam carbon structure with a homogeneously distributed inherent catalyst. The stability tests at a current density of 50 mA cm −2 and 825°C indicate that the cell using PC fuel operated in a more stable manner than that using PCC, and the fuel availabilities for PC and PCC were 47.25% and 34.71%, respectively. The results suggest that PC is a promising solid carbonaceous fuel for solid oxide electrolyte direct carbon fuel cells based on its adequate gasification reactivity and high compatibility with the fuel cells. Abstract : The pomelo peel char (PC) is used as fuel for solid oxide direct carbon fuel cells (SO‐DCFCs). The power densities of fuel cells operating on PC and catalyst‐loaded PC achieve 309 and 518 mW cm −2 at 850 °C, respectively. The PC has superior gasification reactivity due to its unique reticulated foam carbon with homogenously distributed inherent catalyst, promising it a compatible carbon fuel for SO‐DCFCs.