High performance solid oxide electrolysis cell with impregnated electrodes

Chen, Ting; Zhou, Yucun; Liu, Minquan; Yuan, Chun; Ye, Xiaofeng; Zhan, Zhongliang; Wang, Shaorong

doi:10.1016/j.elecom.2015.02.015

Cited by 53 publications

(24 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure c compares the electrolysis performance of our optimized cells with those of oxygen‐conducting SOECs reported in the literature . Some recent advances of electrolysis cells based on proton conductors (such as ) are not shown here, as the operating temperatures (400–600 °C) and steam contents (up to 10 vol%) reported for these proton‐conducting SOECs are very different from the ones based on conventional oxygen conductors (700–900 °C, 50 vol% or higher steam content).…”

Section: Resultsmentioning

confidence: 90%

“…Corresponding current densities and steam‐to‐hydrogen conversion rates (SC) at 1.3 V are shown. c) Comparison of electrolysis performance of optimized cells with Pr 6 O 11 ‐SDC and LSCF‐SDC with literature data for conventional electrode‐supported and metal‐supported SOECs based on oxygen conductors (such as stabilized‐zirconia and lanthanum strontium gallate magnesite) …”

Section: Resultsmentioning

confidence: 99%

“…Despite the high level of development of MS‐SOFCs, only a few initial assessments of MS‐SOEC operation are available . For example, Schiller et al from DLR reported HTE using a metal‐supported cell for the first time, with Ni/8YSZ hydrogen electrode and lanthanum strontium manganite (LSM) oxygen electrode providing a cell voltage of about 1.4 V at current density of −1.0 A cm −2 at 800 °C and 30 vol% H 2 O–H 2 .…”

Section: Introductionmentioning

confidence: 99%

“…For example, Schiller et al from DLR reported HTE using a metal‐supported cell for the first time, with Ni/8YSZ hydrogen electrode and lanthanum strontium manganite (LSM) oxygen electrode providing a cell voltage of about 1.4 V at current density of −1.0 A cm −2 at 800 °C and 30 vol% H 2 O–H 2 . Chen et al from SICCAS used an MS‐SOEC with impregnated Ni‐SDC and Nd 2 O 3 ‐NNO catalysts and demonstrated a comparable performance with state‐of‐the‐art all‐ceramic SOECs . These efforts clearly demonstrate the potential of using metal‐supported cells for HTE, which motivates us to adapt and optimize the MS‐SOFCs developed at LBNL for electrolysis operation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

et al. 2019

View full text Add to dashboard Cite

High‐temperature electrolysis (HTE) using solid oxide electrolysis cells (SOECs) is a promising hydrogen production technology and has attracted substantial research attention over the last decade. While most studies are conducted on hydrogen electrode‐supported type cells, SOEC operation using metal‐supported cells has received minimal attention. The development of metal‐supported SOECs with performance similar to the best conventional SOECs is reported. These cells have stainless steel supports on both sides, 10Sc1CeSZ electrolyte and electrode backbones, and nano‐structured catalysts infiltrated on both hydrogen and oxygen electrode sides. Samarium‐doped ceria (SDC) mixed with Ni is infiltrated as a hydrogen electrode catalyst, and the effect of ceria:Ni ratio is studied. On the oxygen electrode side, catalysts including lanthanum strontium manganite (LSM), lanthanum strontium cobalt ferrite (LSCF), praseodymium oxide (Pr6O11), and their composite catalysts with SDC (i.e., LSM‐SDC, LSCF‐SDC, and Pr6O11‐SDC) are compared. Using the materials with highest catalytic activity (Pr6O11‐SDC and SDC40‐Ni60) and optimizing the catalyst infiltration processes, excellent electrolysis performance of metal‐supported cells is achieved. Current densities of −5.31, −4.09, −2.64, and −1.62 A cm−2 are achieved at 1.3 V and 50 vol% steam content at 800, 750, 700, and 650 °C, respectively.

show abstract

Section: Resultsmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

et al. 2019

View full text Add to dashboard Cite

show abstract

“…due to failure in the fuel delivery subsystem) [18,19]. Because of these cost and operational advantages, MS-SOFCs are being developed for applications that require fast-start or intermittent operation, including personal power generators [17,20,21], residential combined heat and power [19], vehicle range extenders [22][23][24], and electrolysis cells for conversion of variable power sources such as wind and solar [25][26][27]. Details of MS-SOFC materials selection, cell architecture, processing approaches, and notable cell and system demonstrations are available in various review articles [28][29][30].…”

mentioning

confidence: 99%

Assessment of co-sintering as a fabrication approach for metal-supported proton-conducting solid oxide cells

2019

View full text Add to dashboard Cite

Assessment of co-sintering as a fabrication approach for metal-supported proton-conducting solid oxide cells Permalink https://escholarship.org/uc/item/7fr6v5mf Journal Solid State Ionics, 332(Chem. Soc. Rev. 39 2010) Abstract Proton conducting oxide electrolyte materials could potentially lower the operating temperature of metal-supported solid oxide cells (MS-SOCs) to the intermediate range 400 to 600 °C. The porous metal substrate provides the advantages of MS-SOCs such as high thermal and redox cycling tolerance, low-cost of structural materials, and mechanical ruggedness. In this work, viability of co-sintering fabrication of metal-supported proton conducting solid oxide cells is investigated. Candidate proton conducting oxides including perovskite oxides BaZr 0.7 Ce 0.2 Y 0.1 O 3-δ , SrZr 0.5 Ce 0.4 Y 0.1 O 3-δ , and Ba 3 Ca 1.18 Nb 1.82 O 9-δ , pyrochlore oxides La 1.95 Ca 0.05 Zr 2 O 7-δ and La 2 Ce 2 O 7 , and acceptor doped rare-earth ortho-niobate La 0.99 Ca 0.01 NbO 4 are synthesized via solid state reactive or sol-gel methods. These ceramics are sintered at 1450 °C in reducing environment alone and supported on Fe-Cr alloy metal support, and their key characteristics such as phase formation, sintering property, and chemical compatibility with metal support are determined. Most electrolyte candidates suffer from one or more challenges identified for this fabrication approach, including: phase decomposition in reducing atmosphere, evaporation of electrolyte constituents, contamination of the electrolyte with Si and Cr from the metal support, and incomplete electrolyte sintering. In contrast, La 0.99 Ca 0.01 NbO 4 is found to be highly compatible with the metal support and co-sintering processing in reducing atmosphere. A metal-supported cell is fabricated with La 0.99 Ca 0.01 NbO 4 electrolyte, ferritic stainless steel support, Pt air electrode and nanoparticulate ceria-Ni hydrogen electrocatalyst. The total resistance is 50 Ω•cm 2 at 600 °C. This work clearly demonstrates the challenges, opportunities, and breakthrough of metal-supported proton-conducting solid oxide cells by co-sintering fabrication.

show abstract

An Active and Stable Cobalt‐Free Ruddlesden–Popper Nd_0.8Sr_1.2Ni_1‐xFe_xO_4±δ Air Electrode for Reversible Proton‐Conducting Solid Oxide Cells

Chen,

Zhang,

Liu

et al. 2024

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

Reversible proton‐conducting solid oxide cells (R‐PSOCs) are considered to be one of the most promising devices for efficient power generation and hydrogen production. However, the requirement of high catalytic activity for fast oxygen reduction/evolution reaction (ORR/OER) and durability under high steam concentration of air electrode materials remains the major challenge for the practical application of R‐PSOCs. Here, a series of cobalt‐free Ruddlesden–Popper perovskite of Nd0.8Sr1.2Ni1‐xFexO4±δ are reported with mixed conductivity for enhanced ORR/OER kinetics. The R‐PSOCs with an optimal Nd0.8Sr1.2Ni0.7Fe0.3O4±δ air electrode show a high peak power density of 1.28 W cm−2 in the fuel cell mode and a promising current density of 3.24 A cm−2 at 1.3 V in the electrolysis cell mode at 700 °C. In addition, the R‐PSOCs show favorable stability under the fuel cell, electrolysis, and reversible modes for hundreds of hours. This work demonstrates that the Ruddlesden–Popper materials can be utilized as suitable air electrodes for R‐PSOCs.

show abstract

High performance solid oxide electrolysis cell with impregnated electrodes

Cited by 53 publications

References 26 publications

Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

Assessment of co-sintering as a fabrication approach for metal-supported proton-conducting solid oxide cells

An Active and Stable Cobalt‐Free Ruddlesden–Popper Nd_0.8Sr_1.2Ni_1‐xFe_xO_4±δ Air Electrode for Reversible Proton‐Conducting Solid Oxide Cells

Contact Info

Product

Resources

About

High performance solid oxide electrolysis cell with impregnated electrodes

Cited by 53 publications

References 26 publications

Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

Assessment of co-sintering as a fabrication approach for metal-supported proton-conducting solid oxide cells

An Active and Stable Cobalt‐Free Ruddlesden–Popper Nd0.8Sr1.2Ni1‐xFexO4±δ Air Electrode for Reversible Proton‐Conducting Solid Oxide Cells

Contact Info

Product

Resources

About

An Active and Stable Cobalt‐Free Ruddlesden–Popper Nd_0.8Sr_1.2Ni_1‐xFe_xO_4±δ Air Electrode for Reversible Proton‐Conducting Solid Oxide Cells