@article {1168,
	title = {Deconvolution of Water-Splitting on the Triple-Conducting Ruddlesden{\textendash}Popper-Phase Anode for Protonic Ceramic Electrolysis Cells},
	journal = {ACS Applied Materials \& Interfaces},
	volume = {12},
	year = {2020},
	note = {PMID: 33079527},
	pages = {49574-49585},
	keywords = {atomic layer, proton conductors, relaxation time distribution, ruddlesden-popper phase, steam electrolysis, triple-conducting},
	doi = {10.1021/acsami.0c12987},
	url = {https://doi.org/10.1021/acsami.0c12987},
	author = {Tian, Hanchen and Li, Wenyuan and Ma, Liang and Yang, Tao and Guan, Bo and Shi, Wangying and Kalapos, Thomas L. and Liu, Xingbo}
}
@article {1179,
	title = {Understanding of A-site deficiency in layered perovskites: promotion of dual reaction kinetics for water oxidation and oxygen reduction in protonic ceramic electrochemical cells},
	journal = {J. Mater. Chem. A},
	volume = {8},
	year = {2020},
	pages = {14600-14608},
	abstract = {Protonic ceramic electrochemical cells (PCECs) are promising solid-state energy conversion devices which enable the conversion of energy between electricity and hydrogen at intermediate temperatures. Rapid conversion between chemical and electrical energy via PCEC technology will assist in overcoming grand challenges in energy storage. To achieve highly efficient reversible operation between hydrogen production and electricity generation, boosting water-oxidation and oxygen reduction activities of the oxygen electrode while maintaining the durable operation is one of the early-stage technical opportunities. In this study, an A-site deficient layered perovskite (PrBa0.8Ca0.2)0.95Co2O6-δ has been developed as an oxygen electrode for a PCEC which presents superior electrochemical performances. The electrolysis current density reached as high as -0.72 A cm-2 at 1.3 V, and a peak power density of 0.540 W cm-2 was obtained at 600 {\textdegree}C in electrolysis and fuel cell mode, respectively. The PCEC with the new electrode shows good durability under practical operating conditions for 160 hours in both operating modes with no observable degradation. The reversibility between the electrolysis and fuel cell mode is also successfully demonstrated.},
	keywords = {Durability; HTE; Layered perovskite; Protonic ceramic electrochemical cells},
	doi = {10.1039/D0TA05137C},
	url = {http://dx.doi.org/10.1039/D0TA05137C},
	author = {Tang, Wei and Ding, Hanping and Bian, Wenjuan and Wu, Wei and Li, Wenyuan and Liu, Xingbo and Gomez, Joshua Y. and Regalado Vera, Clarita Y. and Zhou, Meng and Ding, Dong}
}
@article {1193,
	title = {Synergistic Coupling of Proton Conductors BaZr0.1Ce0.7Y0.1Yb0.1O3-δ and La2Ce2O7 to Create Chemical Stable, Interface Active Electrolyte for Steam Electrolysis Cells},
	journal = {ACS Applied Materials \& Interfaces},
	volume = {11},
	year = {2019},
	pages = {18323-18330},
	keywords = {BaZr0.1Ce0.7Y0.1Yb0.1O3-δ, durability, HTE, La2Ce2O7, Protonic ceramic electrolysis cell, SOEC},
	doi = {10.1021/acsami.9b00303},
	url = {https://doi.org/10.1021/acsami.9b00303},
	author = {Li, Wenyuan and Guan, Bo and Ma, Liang and Tian, Hanchen and Liu, Xingbo}
}
@article {1195,
	title = {High performing triple-conductive Pr2NiO4+δ anode for proton-conducting steam solid oxide electrolysis cell },
	journal = {Journal of Materials Chemistry A},
	volume = {6},
	year = {2018},
	pages = {18057-18066},
	abstract = {The development of proton-conducting solid oxide electrolysis cells for the intermediate-temperature range application is largely hindered by the limited choice of adequate anode materials. In this study, the popular solid oxide fuel cell cathode material Pr2NiO4+δ (PNO) is investigated as the anode for the electrolysis cell, considering its proton-conducting ability. The introduction of protons into the PNO lattice is confirmed through insertion-induced conductivity variation measurements. Good chemical compatibility is verified between PNO and BaZr0.2Ce0.6Y0.2O3-δ (BZCY) proton-conducting electrolyte. Excellent catalytic activity towards water splitting is observed for the PNO{\textendash}BZCY composite anode, 0.52 Ω cm2 for 550 {\textdegree}C, 0.057 Ω cm2 for 700 {\textdegree}C. The water-splitting process is disclosed by impedance spectroscopy measured under different conditions. Due to proton conduction in PNO, the PNO surface is activated for electrochemical reactions. The non-charge transfer processes account little to the electrode resistance. The performance of the PNO{\textendash}BZCY anode is determined by two charge transfer processes whose kinetics are governed the electrolyzing potential. This charge transfer-limiting nature is relatively benign since the electrode resistance has been found to exponentially reduce with increasing overpotential. Cathode-supported Ni{\textendash}BZCY//BZCY//PNO{\textendash}BZCY thin film electrolyte single cells are fabricated and characterized. \~{}95\% current efficiency is confirmed. At 700 {\textdegree}C, a current density of 977 mA cm-2 is achieved at a 1.3 V electrolyzing potential, e.g. 0.37 V overpotential, which is one of the best performances of proton-conducting steam electrolysis cells so far. The PNO{\textendash}BZCY anode accounts only for 16\% of the overall polarization resistance at 700 {\textdegree}C. These findings prove that the triple-conductive PNO is a promising anode material for proton-based steam electrolysis cells.},
	keywords = {BaZr0.2Ce0.6Y0.2O3-δ, HTE, Pr2NiO4+δ, Protonic ceramic electrolysis cells, SOEC},
	doi = {10.1039/C8TA04018D},
	url = {http://dx.doi.org/10.1039/C8TA04018D},
	author = {Li, Wenyuan and Guan, Bo and Ma, Liang and Hu, Shanshan and Zhang, Nan and Liu, Xingbo}
}
