2014年11月28日 · Our results suggest that N i is a significant defect type in nitrogen-doped Cu 2 O. Cuprous oxide (Cu 2 O), a p-type semiconductor with a direct band gap of 2.1 eV, has long been considered a...

2023年4月10日 · Nickel-doped CuO/Cu/Cu2O nanocomposites were prepared by simple precipitation method. Nickel was doped at three different concentrations of 2 mM (Ni-Cu2O/CuO/Cu (NCO-1)), 4 mM (Ni-CuO/Cu/Cu2O (NCO-2)), and 6 mM (Ni-Cu2O/Cu (NCO-3) and was used as an electrode material for glucose sensing and energy storage applications.

2020年6月13日 · Taking charge: A nickel (Ni) electron acceptor has been successfully doped into a Cu 2 O lattice without forming impurity phases. Both theoretical and experimental results demonstrate that Ni dopants attract electrons from neighboring atoms, therefore facilitating charge separation and transfer.

2025年1月15日 · Herein, an advanced Ni-doped copper oxide catalyst with a hollow square morphology (Ni–CuO) is reported with a Faradaic efficiency of 95.26% at −0.8 V vs RHE and a high yield rate of 0.94 mmol h –1 cm –2, demonstrating high selectivity and stability.

2024年4月23日 · 通过简单的煅烧和浸渍-交换方法，成功合成了掺杂过渡金属（铁、钴、镍）的氧化亚铜（Cu2O）纳米线阵列（M-Cu2O@CM，M = 铁、钴、镍），用于电催化二氧化碳还原反应（CO2RR）制乙烯（C2H4）。 系统表征表明，由于电子从 Cu2O 转移到 Ni/Co，Cu2O@CM 中的 Ni/Co 掺杂有利于稳定 Cu+ 位点，而 Fe 掺杂则具有相反的效果。 因此，他们展示了 Ni-Cu2O@CM > Co-Cu2O@CM > Cu2O@CM > Fe-Cu2O@CM 在 H 细胞中将 CO2RR 转化为 …

2024年4月1日 · In this work, Cu2O with three types of morphologies, including flower, particle, and sheet, were electrodeposited on Ni foam substrates (Cu2O/NF) for direct AEO. The Cu2O flower-deposited NF electrode showed the largest electrochemical surface area (19.6 cm2) and the smallest Cu2O size (200–600 nm) among all Cu2O/NF electrodes.

2023年4月1日 · The average contact angles of Ni-MOF and Cu 2 O are 22.2° and 12.7° respectively, showing hydrophilic characteristics, which is beneficial for the catalyst to capture water vapor in the air in the gas-solid reaction system. Ni-MOF is the main component in 30%-Cu 2 O/Ni-MOF, so its contact angle is 24.7° similar to Ni-MOF monomer.

2019年2月25日 · Developed electrodes was successfully generated by nickel nanoparticles on activated Cu/Cu2O foam through electroless & electrodeposition. The activated surface foam was necessary to form the Ni nanoparticles. The developed electrodes with high specific surface area improve the electrocatalytic activity of nickel nanoparticles in HER.

2018年7月27日 · 氧化亚铜 (cu2o)是一种直接带隙的p型半导体材料，可以直接对太阳光进行利用，在太阳能材料、光电转换材料、光催化降解材料和光裂解制氢等领域具有重要的发展前景。 单纯的cu2o禁带宽度较窄，约为2.1ev，导致cu2o的空穴与电子容易复合从而降低了光电转换效率，载流子寿命较低导致量子转化效率较低。 由于在cu2o的晶格中存在带负电的cu空位和间隙o原子，为了改善cu2o的结构与性能，很多研究者通过复合和掺杂两种方法抑制光生电荷的复合，促进光 …

Ni单 原子取代了Cu 2 O:{110} Cu 和Cu 2 O:{111} 。 理论计算结果表明，Ni-Cu 2 O:{110} Cu 构型表现出最佳的尿素吸附能，有利于有效活化尿素分子，降低能垒随后的脱氢和氮-氮偶联。