02932nas a2200301   4500008004100000022001400041245018200055210006900237260000900306300001200315490000800327520183100335653003302166653003202199653003002231653003102261653001602292100002502308700002502333700001902358700002002377700002802397700002102425700001902446700001602465700002502481856012402506       2023                        eng d  a0021-979700aThermally constructed stable Zn-doped NiCoOx-z alloy structures on stainless steel mesh for efficient hydrogen production via overall hydrazine splitting in alkaline electrolyte0 aThermally constructed stable Zndoped NiCoOxz alloy structures on  cJUN   a737-7490 v6403 a<p>
	Hydrogen has a high energy density of approximately 120 to 140 MJ kg(-1), which is very high compared to other natural energy sources. However, hydrogen generation through electrocatalytic water splitting is a high electricity consumption process due to the sluggish oxygen evolution reaction (OER). As a result, hydrogen generation through hydrazine-assisted water electrolysis has recently been intensively investigated. The hydrazine electrolysis process requires a low potential compared to the water electrolysis process. Despite this, the utilization of direct hydrazine fuel cells (DHFCs) as portable or vehicle power sources necessitates the development of inexpensive , effective anodic hydrazine oxidation catalysts. Here, we prepared oxygen-deficient zinc-doped nickel cobalt oxide (Zn-NiCoOx-z) alloy nanoarrays on stainless steel mesh (SSM) using a hydrothermal synthesis method followed by thermal treatment. Furthermore, the prepared thin films were used as electrocatalysts , the OER and hydrazine oxidation reaction (HzOR) activities were investigated in three-and two-electrode systems. In a three-electrode system, Zn-NiCoOx-z/SSM HzOR requires-0.116 V (vs RHE) potential to achieve a 50 mA cm(-2) current density, which is dramatically lower than the OER potential (1.493 V vs RHE). In a two-electrode system (Zn-NiCoOx-z/SSM(-)IIZn-NiCoOx-z/SSM(+)), the overall hydrazine splitting potential (OHzS) required to reach 50 mA cm(-2) is only 0.700 V, which is dramatically less than the required potential for overall water splitting (OWS). These excellent HzOR results are due to the binder-free oxygen-deficient Zn-NiCoOx-z/ SSM alloy nanoarray, which provides a large number of active sites and improves the wettability of cat-alysts after Zn doping. (C) 2023 Elsevier Inc. All rights reserved.</p>
10aHydrazine Oxidation Reaction10ahydrogen evolution reaction10aOxygen Evolution Reaction10aOxygen-Deficient Materials10aZinc Doping1 aKashale, Anil, Ashok1 aRasal, Akash, Sanjay1 aHsu, Fei-Chien1 aChen, ChangChun1 aKulkarni, Sayali, Nitin1 aChang, Chun, Hao1 aChang, Jia-Yaw1 aLai, Yuekun1 aChen, I., -Wen Peter  uhttps://library.ncl.res.in/content/thermally-constructed-stable-zn-doped-nicoox-z-alloy-structures-stainless-steel-mesh