Author
Z. Zhang
Bio: Z. Zhang is an academic researcher from Rutgers University. The author has contributed to research in topics: Magnetic susceptibility & Paramagnetism. The author has an hindex of 3, co-authored 5 publications receiving 204 citations.
Papers
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TL;DR: The Ruddlesden-Popper nickelates Ln 4 Ni 3 O 10-δ, with Ln = La, Pr, and Nd, have been synthesized by a precursor method as discussed by the authors.
137 citations
TL;DR: In this article, solid-solutions of the type Nd 2− x Sr x NiO 4+ δ (0 ≤ x ≤ 1) were prepared by codecomposition of the metal nitrates and were characterized by means of powder X-ray diffraction, TGA, electrical resistivity, and magnetic susceptibility measurements.
65 citations
TL;DR: The synthesis, structure, and physical properties of La 3-x M x Ni 2 O 7-δ, with M = Ca 2+, Sr 2+ or Ba 2+ and 0 x ≤ 0.075, were investigated in this article.
13 citations
TL;DR: In this paper, single-phase samples of T12Ba2CaCu2O8 and T12 Ba2Ca2Cu3O10 have been prepared using a reliable and simple synthetic method.
Abstract: Single-phase samples of T12Ba2CaCu2O8 and T12Ba2Ca2Cu3O10 have been prepared using a reliable and simple synthetic method. Samples were characterized by x-ray powder diffraction, magnetic susceptibility and four probe resistivity methods. The TcR=0 values for T12Ba2CaCu2O8 ranged from 100 to 105K, whereas those for T12Ba2Ca2Cu3O10 ranged from 96 to 107K. The relationship between the superconducting properties and the various preparation conditions are discussed.
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TL;DR: In this paper, the most important advances in this topic concentrating on both structural aspects and impact in cathode performance for solid oxide fuel cells (SOFCs) applications are highlighted. But, they do not consider the performance of the cathode in the intermediate-to-low range of temperatures.
Abstract: In the context of solid oxide fuel cells (SOFCs) applications, mixed-ionic electronic conductors offer significant advantages over conventional cathodes especially in the intermediate-to-low range of temperatures where the performance of the cathode is of fundamental importance. An increasing number of layered oxide materials have been found to present excellent properties as mixed ionic-electronic conductors. Therefore, considerable efforts have been recently devoted to better understand and evaluate layered ordered structures. This article highlights the most important advances in this topic concentrating on both structural aspects and impact in cathode performance for SOFCs applications.
381 citations
TL;DR: The state-of-art in the manufacture and applications of inorganic nanoparticles made using continuous hydrothermal flow synthesis (CHFS) processes are summarized, ideal requirements of any flow process for nanoceramics production are introduced, different approaches to CHFS are outlined, and the pertinent properties of supercritical water and issues around mixing in flow are introduced.
Abstract: Nanomaterials are at the leading edge of the emerging field of nanotechnology. Their unique and tunable size-dependent properties (in the range 1–100 nm) make these materials indispensable in many modern technological applications. In this Review, we summarize the state-of-art in the manufacture and applications of inorganic nanoparticles made using continuous hydrothermal flow synthesis (CHFS) processes. First, we introduce ideal requirements of any flow process for nanoceramics production, outline different approaches to CHFS, and introduce the pertinent properties of supercritical water and issues around mixing in flow, to generate nanoparticles. This Review then gives comprehensive coverage of the current application space for CHFS-made nanomaterials including optical, healthcare, electronics (including sensors, information, and communication technologies), catalysis, devices (including energy harvesting/conversion/fuels), and energy storage applications. Thereafter, topics of precursor chemistry and ...
361 citations
IBM1
TL;DR: In this paper, the electrical conductivity of PrNiO3 is shown to be metallic at room temperature, but undergoes a transition at 130 K to an insulating state, with a ∼ 0.2% contraction upon heating into the metallic state.
316 citations
TL;DR: In this article, a comparative investigation of the much-studied La 2 NiO 4+ δ ( n ǫ = 1) phase and the higher-order Ruddlesden-Popper phases, La n + 1 Ni n O 3 n +1 ( nǫ= 2 and 3), has been undertaken to determine their suitability as cathodes for intermediate-temperature solid-oxide fuel cells.
203 citations
TL;DR: In this article, the Ruddlesden-Popper nickelate was used as a cathode material for fuel cell cathode perovskite materials and was shown to be a superior oxide-ion conductor.
Abstract: Motivated by recent work on the Ruddlesden–Popper material, \({\hbox{La}}_{2} {\hbox{NiO}}_{{4 + \delta }} ,\) which was shown to be a superior oxide-ion conductor than conventional solid-oxide fuel cell cathode perovskite materials, we undertook A- and B-site doping studies of the Ruddlesden–Popper nickelate series in an attempt to identify other candidates for cathode application. In this paper, we summarize our most significant results for the \({\hbox{La}}_{{\text{2}}} {\hbox{Ni}}_{{1 - x}} {\hbox{Co}}_{x} {\hbox{O}}_{{4 + \delta }}\)and \({\hbox{La}}_{{2 - y}} {\hbox{Sm}}_{y} {\hbox{NiO}}_{{4 + \delta }}\)systems and more recently, the higher-order Ruddlesden–Popper phases La n+1Ni n O3n+1 (n=2 and 3), which show greater promise as cathode materials than the n=1 compositions.
186 citations