The reaction of chloride salts of zinc and manganese with NaOH yielded a cubic spinel structured metastable precursor at room temperature, driven mainly by the salt elimination process's energetics. While classical drying processes failed to produce the monophasic oxide, recrystallization under the hydrothermal conditions yielded Zn₂MnO₄ in nano dimensions. The sample consisted of crystallites with an average 6 nm size and had a lattice dimension of 8.396 (13) Å. The selected area electron diffraction pattern reiterated the occurrence of cubic inverse spinel. The presence of fingerprint (A_1g and F_2g) modes of an inverse spinel at 663 and 561 cm⁻¹ in the Raman spectrum further supported our finding. The TEM-EDS analysis confirmed the ratio of Zn: Mn as 1.95:1. The sample showed an optical bandgap of 2.54 eV. X-ray photoelectron spectral analysis established the existence of manganese in the IV oxidation state. The presence of Mn (IV) with small amounts of Mn (III) (up to 20%) was confirmed from the electron paramagnetic spectra recorded at room temperature and 77 K. An average oxidation state of 3.85 was deduced from the chemical redox titration experiments. The pseudocapacitive behavior of the sample was evident in cyclic voltammetric experiments. The sample exhibited paramagnetic behavior at 298 K within the applied magnetic field of ±50 kOe. In the temperature-dependent measurements, the zero-field and field cooled data points of Zn₂MnO₄ diverged at 13 K, suggesting a spin-glass behavior. An effective magnetic moment of 4.31 BM was deduced for the sample. The inverse spinel effectively catalyzed the oxidation of phenol. It facilitated nearly 100% degradation of bisphenol-A to salicylaldehyde and phenylethyl alcohol (as major products) in the presence of H₂O₂ and at a pH of 9.

锌和锰的氯化物盐与 NaOH 的反应在室温下产生立方尖晶石结构的亚稳态前体，主要受盐消除过程的能量驱动。虽然经典的干燥过程未能产生单相氧化物，但在水热条件下重结晶产生纳米尺寸的Zn ₂ MnO ₄。样品由平均 6 nm 大小的微晶组成，晶格尺寸为 8.396 (13) Å。选区电子衍射图重申了立方反尖晶石的出现。反尖晶石在 663 和 561 cm ^-1处的指纹（A _1g和 F _2g）模式的存在拉曼光谱进一步支持了我们的发现。TEM-EDS 分析证实 Zn:Mn 的比例为 1.95:1。样品显示出 2.54 eV 的光学带隙。X 射线光电子能谱分析确定存在 IV 氧化态的锰。在室温和 77 K 下记录的电子顺磁光谱证实了 Mn (IV) 和少量 Mn (III)（高达 20%）的存在。从化学氧化还原滴定实验推导出平均氧化态为 3.85 . 样品的赝电容行为在循环伏安实验中很明显。样品在 ±50 kOe 的外加磁场内在 298 K 下表现出顺磁行为。在温度相关测量中，Zn ₂ MnO的零场和场冷却数据点₄在 13 K 处发散，表明存在自旋玻璃行为。推导出样品的有效磁矩为 4.31 BM。反尖晶石有效地催化了苯酚的氧化。在 H ₂ O ₂存在且 pH 值为 9的情况下，它促进了双酚 A 几乎 100% 降解为水杨醛和苯乙醇（作为主要产物）。