Promotion effect of lanthanum on the Co/La/Ba ammonia synthesis catalysts—the influence of lanthanum content

Zybert, Magdalena; Tarka, Aleksandra; Mierzwa, Bogusław; Kępiński, Leszek; Raróg‐Pilecka, Wioletta

doi:10.1016/j.apcata.2016.01.036

Cited by 27 publications

(17 citation statements)

References 37 publications

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“…36 The presence of Ce or Ba results in a broadening of the two signals, associated with the interaction of the components in the system. 32,[37][38] In general, Ce addition slightly shifts to the lower temperature the first reduction event, while the second reduction event starts and is extended to higher temperatures. From the hydrogen uptakes evaluated by the H 2 -TPR measurements (Table 2), it is concluded that the Co 3 O 4 is not completely reduced to cobalt metal for these samples, under the TPR conditions, with smaller reduction degrees achieved for the samples with higher cerium content.…”

Section: Catalysts Structural Characterizationmentioning

confidence: 94%

Development of a Ba–CoCe catalyst for the efficient and stable decomposition of ammonia

Morlanés

Sayas

Shterk

et al. 2021

Catal. Sci. Technol.

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Section: Catalysts Structural Characterizationmentioning

confidence: 94%

Development of a Ba–CoCe catalyst for the efficient and stable decomposition of ammonia

Morlanés

Sayas

Shterk

et al. 2021

Catal. Sci. Technol.

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“…Furthermore, the catalytic activity of alloy catalysts can be adjusted by controlling their composition. Zybert et al . studied the effect of Ce content (La content of 0–55.7 %) and Ba (constant content, about 1.5 mmol g Co −1 ) on the NH 3 synthesis performance of a Co‐based catalyst.…”

Section: Metal Catalystsmentioning

confidence: 99%

“…The synergistic effect of Co with Ce andL ac an increase the activity of the catalyst in the synthesis of NH 3 .F urthermore, the catalytic activity of alloy catalysts can be adjusted by controlling their composition. Zybert et al [67] studied the effect of Ce content (La content of 0-55.7 %) and Ba (constant content, about 1.5 mmol g Co…”

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confidence: 99%

Current Progress of Electrocatalysts for Ammonia Synthesis Through Electrochemical Nitrogen Reduction Under Ambient Conditions

et al. 2020

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chnology.S he received her bachelor's degree from Jining university,P .R. China. Her research focuses on the electrocatalytic NH 3 synthesis at ambient conditions. Dr.T ingli Ma received her Ph.D. degree in 1999 from Department of Chemistry,F aculty of Science of Kyushu University,J apan. She then joined the National Institute of Advanced Industrial Science and Te chnology (AIST,J apan) as aP ostdoctoral Researcher from 1999 to 2004. She worked as ap rofessor at the Dalian University of Te chnology from 2007-2018. She is working at the Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology,J apan and China Jiliang University.S he leads research teams studying inorganic and organic solar cells, such as dye-sensitized and perovskite solar cells, and other related projects including development of catalysts, hydrogen production, functional dyes, and nano-sized semiconducting materials. Dr.M ah as published more than 200 papers in peer-reviewed journals. Figure 1. Schemeo fe lectrochemicalcell for NH 3 production by electrocatalytic NRR. [30] Published with permission. CopyrightE lsevier,2 018.

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“…Therefore, a continuous effort to improve the Haber-Bosch process and develop new catalysts is being devoted. At the beginning of the twenty-first century, several new catalysts mostly based on cobalt compounds were presented (Hargreaves 2014;Jacobsen 2000;Kojima and Aika 2001a;McAulay et al 2015;Moszyński et al 2010Moszyński et al , 2015Moszyński et al , 2018Tarka et al 2015Tarka et al , 2017Zybert et al 2016). Among this materials, cobalt molybdenum nitrides are considered as a possible replacement for the commercial multi-promoted iron catalyst.…”

Section: Introductionmentioning

confidence: 99%

Thermal stability of catalyst for ammonia synthesis based on cobalt molybdenum nitrides

et al. 2018

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The formation and stability of an ammonia synthesis catalyst, based on cobalt molybdenum nitrides, were studied. The activation process of the catalyst was examined by in situ X-ray diffractometry. The thermal stability of obtained active phase of the catalyst was tested at 700 °C under ammonia atmosphere, N 2 /H 2 mixture and under pure hydrogen. The presence of Co 2 Mo 3 N and Co 3 Mo 3 N phases in the catalyst was confirmed. The phase composition was stable in a long-term test performed under nitrogen/hydrogen atmosphere. Co 3 Mo 3 N phase decomposed into Co 6 Mo 6 N after exposure to pure hydrogen.

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Promotion effect of lanthanum on the Co/La/Ba ammonia synthesis catalysts—the influence of lanthanum content

Cited by 27 publications

References 37 publications

Development of a Ba–CoCe catalyst for the efficient and stable decomposition of ammonia

Development of a Ba–CoCe catalyst for the efficient and stable decomposition of ammonia

Current Progress of Electrocatalysts for Ammonia Synthesis Through Electrochemical Nitrogen Reduction Under Ambient Conditions

Thermal stability of catalyst for ammonia synthesis based on cobalt molybdenum nitrides

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