Identification of nickel sulfides on Ni–YSZ cermet exposed to H2 fuel containing H2S using Raman spectroscopy

Dong, Jian; Cheng, Zhe; Zha, Shaowu; Liu, Meilin

doi:10.1016/j.jpowsour.2005.06.016

Cited by 144 publications

(95 citation statements)

References 9 publications

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“…The second problem is also avoidable by suppressing carbon deposition on the anode. It was reported that the anode performance reduced by H 2 S (2 ppm in hydrogen fuel) could be recovered when sulfur impurity was removed from the fuel at 800-1000°C (Matsuzaki and Yasuda, 2000), and it was also reported that anode microstructure did not change by feeding of 100 ppm of H 2 S with hydrogen at 727°C although Ni 3 S 2 formation was observed by Raman spectroscopy (Dong et al, 2006). The nickel particle growth observed in the present study was different from the reported anode degradations.…”

Section: Direct Feeding Of Low Sulfur Kerosenementioning

confidence: 99%

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Stability of Ni Base Anode for Direct Hydrocarbon SOFCs

Kishimoto

Xiong

Yamaji

et al. 2007

J. Chem. Eng. Japan

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Direct feeding of several hydrocarbon fuels was carried out at 800°C for a SOFC with scandia stabilized zirconia (ScSZ) electrolyte and nickel-ScSZ (Ni-ScSZ) cermet anode. Liquid hydrocarbons as n-dodecane (paraffin type C 12 H 26 ) and low sulfur content kerosene were used and fed to the anode at steam/carbon ratio (S/C) of 2. Continuous operation was achieved for more than 120 h with n-dodecane without anode degradation. However, the Ni-ScSZ anode completely detached from the electrolyte when low sulfur kerosene was used as fuel. After operation with the kerosene, nickel particles grew more than 3 µ µ µ µ µm in diameter although particle growth was about 1 µ µ µ µ µm under the n-dodecane. The nickel sintering seems to be enhanced by aromatic hydrocarbons and/or sulfur compounds in the kerosene. From thermodynamic consideration, liquid NiS could form under SOFC operation conditions with 30 ppm of sulfur containing hydrocarbon fuels.

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Section: Direct Feeding Of Low Sulfur Kerosenementioning

confidence: 99%

“…3. Degradation of anode performance by H 2 S content in hydrogen fuel (Matsuzaki and Yasuda, 2000;Dong et al, 2006;Sasaki et al, 2006). The nickel particle growth associated to 1 can be avoided by reduction of operating temperature and/or (Matsumoto, 2003) optimized anode microstructure.…”

Section: Direct Feeding Of Low Sulfur Kerosenementioning

confidence: 99%

Stability of Ni Base Anode for Direct Hydrocarbon SOFCs

Kishimoto

Xiong

Yamaji

et al. 2007

J. Chem. Eng. Japan

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“…It was found that the contents of Ni 3 with graphite oxide is reasonable because after the chemical reduction of graphene oxide, the conjugated graphene network (sp 2 carbon) will be re-established, however, the size of the re-established graphene network is usually smaller than that of the original graphite oxide, which will consequently lead to the increase of I D /I G ratio [35,45]. In addition, the strong peaks at 290, 340 and 489 cm -1 in the samples of CCNS and CCNS-RGO-1.5 are consistent with the characteristic peaks of Ni 3 S 2 [46,47]. The FT-IR spectra of graphite oxide and CCNS-RGO-1.5 composite are shown in Fig.…”

Section: Characterization Of Ccns-rgo Nanocompositesmentioning

confidence: 62%

Carbon coated nickel sulfide/reduced graphene oxide nanocomposites: facile synthesis and excellent supercapacitor performance

Shen

et al. 2014

Electrochimica Acta

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“…The phonon band of Ni 3 S 2 composite, located at 208-334 cm À1 , resulted from the Ni 3 S 2 phase [17] whilst two more distinctive peaks at about 524 and 1100 cm À1 corresponded to NiO. For carbon/Ni 3 S 2 , all of the phonon vibrations from carbon and Ni 3 S 2 composite were present except for Ni metal, which had no evidence of a Raman vibrational mode [17].…”

Section: Resultsmentioning

confidence: 97%