| 第 53 卷第 2 期 |  | Vol. 53 No. 2 | | 2023 年 4 月 | Apr 2023 |
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所屬欄目：功能材料
NiMoO4形貌可控調變及對Ni-MoS2電催化水制氫影響研究 |
| 黃金午，白 亮，王 莉，曹 兢*
（湖南理工學(xué)院 化學(xué)化工學(xué)院，湖南 岳陽(yáng) 414006） |
| 摘 要：采用水熱法，制備了NiMoO4納米棒和納米球前體，并考察了前體形貌對硫化態(tài)Ni-MoS2催化劑電催化分解水制氫性能的影響。結果表明，使用NiMoO4納米球前體所得Ni-MoS2催化劑在電流密度為10 mA/cm2的過(guò)電位為217 mV，比使用NiMoO4納米棒前體所得Ni-MoS2催化劑的過(guò)電位低60 mV。表征結果表明，NiMoO4納米球前體硫化所得的Ni-MoS2催化劑具有更加規整的形貌和更高的硫化程度，從而具有更多的四價(jià)鉬活性位點(diǎn)。 |
| 關(guān)鍵詞：電催化析氫；二硫化鉬；鎳摻雜；形貌可控 |
| 中圖分類(lèi)號：O643 文獻標識碼：A 文章編號：1009-9212（2023）02-0058-06 |
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| Controlled Morphology Modulation of NiMoO4 and its Effect on the Performance of Ni-MoS2 in Electrochemical Hydrogen Evolution |
| HUANG Jin-wu, BAI Liang, WANG Li, CAO Jing*
(Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China) |
| Abstract：The NiMoO4 nanorod and nanosphere were prepared by hydrothermal method as precursors. Besides, the effect of morphology of the precursors on the performance of Ni-MoS2 in electrocatalytic hydrogen evolution was investigated. The results show that the overpotential of Ni-MoS2 catalyst with NiMoO4 nanosphere as precursor is 217 mV at a current density of 10 mA/cm2, which is 60 mV lower than that with NiMoO4 nanorod as precursor. The characterization results showed that the Ni-MoS2 catalyst obtained from NiMoO4 nanosphere precursor had more regular morphology and higher sulfidation degree, thus exposing more active molybdenum (IV) sites. |
| Key words：electrochemical hydrogen evolution; MoS2; Ni doping; morphology control |
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基金項目：湖南省大學(xué)生創(chuàng )新訓練項目（S202210543036）。
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作者簡(jiǎn)介：黃金午（2002—），男，湖南張家界人，研究方向：電催化分解水制氫（E-mail：hnistHjw@163.com）。
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聯(lián) 系 人：曹 兢，講師，碩士生導師，研究方向：電催化，催化加氫（E-mail：caojing@hnist.edu.cn）。
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收稿日期：2023-01-30
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