Controlled Synthesis of 3D Flower-like Ni2P Composed of Mesoporous Nanoplates for Overall Water Splitting

被引：31

作者：

Zheng, Haiyan ^{[1
]}

Huang, Xiubing ^{[1
]}

Wu, Zhenyu ^{[1
]}

Gao, Hongyi ^{[1
]}

Dong, Wenjun ^{[1
]}

Wang, Ge ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Key Lab Funct Mat Mol & Struct Construct, Beijing 10083, Peoples R China

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2017年 / 12卷 / 22期

关键词：

electrocatalysts; hydrogen evolution reaction; mesoporous nanoplates; Ni2P; oxygen evolution reaction;

D O I：

10.1002/asia.201701255

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Developing efficient non-noble metal and earth-abundant electrocatalysts with tunable microstructures for overall water splitting is critical to promote clean energy technologies for a hydrogen economy. Herein, novel three-dimensional (3D) flower-like Ni2P composed of mesoporous nanoplates with controllable morphology and high surface area was prepared by a hydrothermal method and low-temperature phosphidation as efficient electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Compared with the urchin-like NixPy, the 3D flower-like Ni2P with a diameter of 5m presented an efficient and stable catalytic performance in 0.5m H2SO4, with a small Tafel slope of 79mVdec(-1) and an overpotential of about 240mV at a current density of 10mAcm(-2) with a mass loading density of 0.283mgcm(-2). In addition, the catalyst also exhibited a remarkable performance for the OER in 1.0m KOH electrolyte, with an overpotential of 320mV to reach a current density of 10mAcm(-2) and a small Tafel slope of 72mVdec(-1). The excellent catalytic performance of the as-prepared Ni2P may be ascribed to its novel 3D morphology with unique mesoporous structure.

引用

页码：2956 / 2961

页数：6

共 59 条

[1]

Huang H., Yu C., Yang J., Han X., Zhao C., Li S., Liu Z., Qiu J., J. Mater. Chem. A, 4, pp. 16028-16035, (2016)

[2]

Zhao H., Yuan Z.-Y., Catal. Sci. Technol., 7, pp. 330-347, (2017)

[3]

Wang X., Kolen'ko Y.V., Bao X.Q., Kovnir K., Liu L., Angew. Chem. Int. Ed., 54, pp. 8188-8192, (2015)

[4]

Angew. Chem., 127, pp. 8306-8310, (2015)

[5]

Zheng Y., Jiao Y., Jaroniec M., Qiao S.Z., Angew. Chem. Int. Ed., 54, pp. 52-65, (2015)

[6]

Angew. Chem., 127, pp. 52-66, (2015)

[7]

Wang H., Lee H.W., Deng Y., Lu Z., Hsu P.C., Liu Y., Lin D., Cui Y., Nat. Commun., 6, (2015)

[8]

McKone J.R., Sadtler B.F., Werlang C.A., Lewis N.S., Gray H.B., ACS Catal., 3, pp. 166-169, (2013)

[9]

Tian J., Cheng N., Liu Q., Sun X., He Y., Asiri A.M., J. Mater. Chem. A, 3, pp. 20056-20059, (2015)

[10]

Deng J., Ren P., Deng D., Bao X., Angew. Chem. Int. Ed., 54, pp. 2100-2104, (2015)

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