Fabrication and characterization of Cu/YSZ cermet high-temperature electrolysis cathode material prepared by high-energy ball-milling method

High Temperature Electrolysis in Alkaline Cells, Solid Proton Conducting Cells, and Solid Oxide Cells

“…To date, Ni-YSZ is still the preferred “fuel electrode”, although electrodes such as Ni-ScYSZ, ,,, Ni-CGO, ,, Cu-YSZ, , NiCu-YSZ, doped strontium titanates such as lanthanum or niobium-doped strontinum titanates (LST , and STN), and composite electrodes LST-ceria, , as well as nickel impregnated LST-ceria, have been tested for electrolysis performance. Also, modification of the Ni-YSZ electrode by impregnating the Ni-YSZ structure with CGO or molybdenum-doped ceria (MDC) has shown increased performance. , …”

An in situ near-ambient pressure X-ray photoelectron spectroscopy study of CO 2 reduction at Cu in a SOE cell

“…Ni/YSZ electrodes [16][17][18]. Here we should mention the recent electrochemical study of CO 2 electrolysis and CO oxidation in CO 2 /CO mixtures on Ce oxide electrodes patterned on YSZ using surface sensitive near ambient pressure XPS, very relevant to our investigations [13].…”

“…[1][2][3][4]) as well as of a dedicated Faraday Discussion [5] and it is not necessary to repeat this information here, since our study is focused specifically on the role of metallic Cu constituent in SOECs cathodes. In order to place the role of Cu in context, it is worth recalling briefly the materials that have been used for CO 2reduction SOECs: (i) Pt/YSZ [6][7][8]; (ii) Ni/YSZ [9][10][11]; (iii) ceria [12,13]; (iv) Ni/GDC (Gd-doped ceria) [14,15], Ni-Ru/GDC [15]; (v) Cu/YSZ [16][17][18]; (vi) Cu-doped La-Sr-Co-ferrite (LSCF)/CGO [19,20]; (vii) Cu/GDC [21,22]; (viii) La-Sr-Cr manganite(LSCM)-based p-type perovskites (LSCM/YSZ [11,23], LSCM/GDC [11,24]); Ni- [25] and Fe-impregnated LSCN [26]) and (ix) La-Sr titanate (LST)-based n-type perovskites, either in pure form [27] or Ni-impregnated [28]. Notwithstanding the rather extensive literature corpus, no general agreement has been reached regarding the best catalytic material for CO 2 reduction; in particular, there is still no consensus on the performance of the popular Ni-based cathodes, that are however recognized to exhibit a range of operational problems during CO 2 reduction.…”

Fabrication and characterization of Cu/YSZ cermet high temperature electrolysis cathode material prepared by high-energy ball-milling method

“…However, nano-particles of Cu/YSZ cermet could enable low temperature fabrication of cermets. Therefore, the key issue to low temperature fabrication of Cu/YSZ is engineering possibility of nano-particles fabrication method [12,14,15].…”