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In Situ Growth of BiOI/MoS2 Heterostructure as Pt Supports for Visible Light‐Assisted Electrocatalytic Methanol Oxidation Reaction
Energy Technology ( IF 3.6 ) Pub Date : 2019-09-30 , DOI: 10.1002/ente.201900731 Hongmin Zhang 1 , Chunyang Zhai 1 , Peizhou Yang 2 , Chen Yuan 1 , Nianqing Fu 3 , Mingshan Zhu 4
Energy Technology ( IF 3.6 ) Pub Date : 2019-09-30 , DOI: 10.1002/ente.201900731 Hongmin Zhang 1 , Chunyang Zhai 1 , Peizhou Yang 2 , Chen Yuan 1 , Nianqing Fu 3 , Mingshan Zhu 4
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A two‐dimensional BiOI/MoS2 heterojunction is fabricated by in situ growth of MoS2 on BiOI nanosheets through a hydrothermal method and then as a carrier for loading on Pt nanoparticles. Transmission electron microscopy shows that Pt nanoparticles are decorated uniformly on the surface of BiOI/MoS2 nanosheets. The obtained Pt‐BiOI/MoS2 is utilized as an electrocatalyst for the methanol oxidation reaction in alkaline conditions under visible light irradiation. Electrochemical evaluations indicate that as‐prepared Pt‐BiOI/MoS2 expresses the highest methanol oxidation reaction activity and stability, and the maximum current density reaches 1007.2 mA mg−1Pt under visible light irradiation, which is 12 and 3.5 times higher compared with Pt‐BiOI and commercial Pt/C electrodes, respectively, in the traditional electrocatalytic process. The results suggest that a synergy of photo‐ and electro‐processes improves the photoelectrocatalytic performance of Pt‐BiOI/MoS2 in the methanol oxidation reaction.
中文翻译：
Pt支撑BiOI / MoS2异质结构的原位生长，用于可见光辅助电催化甲醇氧化反应
二维BiOI / MoS 2异质结是通过水热法在BiOI纳米片上原位生长MoS 2，然后将其作为负载在Pt纳米粒子上的载体而制成的。透射电子显微镜显示，Pt纳米颗粒均匀地装饰在BiOI / MoS 2纳米片的表面上。所得的Pt-BiOI / MoS 2用作碱性条件下可见光照射下甲醇氧化反应的电催化剂。电化学评估表明，所制备的Pt-BiOI / MoS 2表现出最高的甲醇氧化反应活性和稳定性，最大电流密度达到1007.2 mA mg -1 Pt在可见光照射下，分别比传统电催化工艺中的Pt-BiOI和商用Pt / C电极高12倍和3.5倍。结果表明，光和电过程的协同作用提高了Pt-BiOI / MoS 2在甲醇氧化反应中的光电催化性能。
更新日期：2019-09-30
中文翻译：
Pt支撑BiOI / MoS2异质结构的原位生长，用于可见光辅助电催化甲醇氧化反应
二维BiOI / MoS 2异质结是通过水热法在BiOI纳米片上原位生长MoS 2，然后将其作为负载在Pt纳米粒子上的载体而制成的。透射电子显微镜显示，Pt纳米颗粒均匀地装饰在BiOI / MoS 2纳米片的表面上。所得的Pt-BiOI / MoS 2用作碱性条件下可见光照射下甲醇氧化反应的电催化剂。电化学评估表明，所制备的Pt-BiOI / MoS 2表现出最高的甲醇氧化反应活性和稳定性，最大电流密度达到1007.2 mA mg -1 Pt在可见光照射下，分别比传统电催化工艺中的Pt-BiOI和商用Pt / C电极高12倍和3.5倍。结果表明，光和电过程的协同作用提高了Pt-BiOI / MoS 2在甲醇氧化反应中的光电催化性能。
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