我组吴杰在Advanced Materials上发表论文

题目：

Composition engineering of amorphous nickel boride nanoarchitectures enabling highly efficient electrosynthesis of hydrogen peroxide

作者：

Jie Wu,[a] Meilin Hou,[b] Ziliang Chen,[a][c]* Weiju Hao,[d] Xuelei Pan,[e][f] Hongyuan Yang,[c] Wanglai Cen,[f] Yang Liu,[a]* Hui Huang,[a] Prashanth W. Menezes,[c]* and Zhenhui Kang,[a]*

单位：

[a] Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices Soochow University Suzhou 215123, China

[b] College of Engineering, Hebei Normal University Shijiazhuang 050024, China

[c] Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623 Berlin, Germany

[d] College of Science, University of Shanghai for Science and Technology,Shanghai 200093, P. R. China

[e] State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China

[f] Institute of New Energy and Low Carbon Technology, Sichuan University, Chengdu 610065, China

[g] Material Chemistry Group for Thin Film Catalysis – CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany

摘要：

Developing advanced electrocatalysts with exceptional two electron (2e⁻) selectivity, activity, and stability is crucial for driving the oxygen reduction reaction (ORR) to produce hydrogen peroxide (H₂O₂). Herein, a composition engineering strategy is proposed to flexibly regulate the intrinsic activity of amorphous nickel boride nanoarchitectures for efficient 2e⁻ ORR by oriented reduction of Ni²⁺ with different amounts of BH₄⁻. Among borides, the amorphous NiB₂ delivers the 2e⁻ selectivity close to 99% at 0.4 V and over 93% in a wide potential range, together with a negligible activity decay under prolonged time. Notably, an ultrahigh H₂O₂ production rate of 4.753 mol g_cat⁻¹ h⁻¹ is achieved upon assembling NiB₂ in the practical gas diffusion electrode. The combination of X-ray absorption and in situ Raman spectroscopy, as well as transient photovoltage measurements with density functional theory, unequivocally reveal that the atomic ratio between Ni and B induces the local electronic structure diversity, allowing optimization of the adsorption energy of Ni toward *OOH and reducing of the interfacial charge transfer kinetics to preserve the O-O bond.

影响因子：

29.4

分区情况：

1区

链接：

https://onlinelibrary.wiley.com/doi/full/10.1002/adma.202202995