DataVXACS NanoPaper
journal article·2021-04-27

Spatially Confined Formation of Single Atoms in Highly Porous Carbon Nitride Nanoreactors

Yunpeng Zuo, Tingting Li, Ning Zhang, Tianyun Jing, Dewei Rao, Patrik Schmuki, Štěpán Kment, Radek Zbořil, Yang Chai

ACS Nano· Volume 15· Issue 4
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Source abstract

Abstract

Reducing the size of a catalyst to a single atom (SA) level can dramatically change its physicochemical properties and significantly boost its catalytic activity. However, the massive synthesis of SA catalysts still remains a grand challenge mainly because of the aggregation and nucleation of the generated atoms during the reaction. Here, we design and implement a spatially confined synthetic strategy based on a porous-hollow carbon nitride (p-CN) coordinated with 1-butyl-3-methylimidazole hexafluorophosphate, which can act as a nanoreactor and allow us to obtain metal SA catalysts (p-CN@M SAs). This relatively easy and highly effective method provides a way to massively synthesize single/multiple atoms (p-CN@M SAs, M = Pt, Pd, Cu, Fe, etc.). Moreover, the amorphous NiB-coated p-CN@Pt SAs can further increase the loading amount of Pt SAs to 3.7 wt %. The synthesized p-CN@Pt&NiB electrocatalyst exhibits an extraordinary hydrogen evolution reaction activity with the overpotential of 40.6 mV@10 mA/cm–2 and the Tofel slope of 29.26 mV/dec.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong People’s Republic of China

Institute of Surface Micro and Nano Materials, Xuchang University, 461002 Xuchang, Henan, People’s Republic of China

School of Materials Science and Engineering, Jiangsu University, 212013 Zhenjiang, People’s Republic of China

Department of Materials Science, University of Erlangen-Nuremberg, Institute for Surface Science and Corrosion WW4-LKO, Martensstraße 7, D-91058 Erlangen, Germany

Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Křížkovského 511/8, 779 00 Olomouc, Czech Republic

CEET, Nanotechnology Centre, Centre of Energy and Environmental Technologies, VŠB−Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava, Poruba, Czech Republic

Funding

European Regional Development Fund · Ministerstvo ?kolstv?, Ml?de?e a Telov?chovy · National Natural Science Foundation of China · Hong Kong Polytechnic University

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