Merck
  • Home
  • Search Results
  • A CNT@MoSe2 hybrid catalyst for efficient and stable hydrogen evolution.

A CNT@MoSe2 hybrid catalyst for efficient and stable hydrogen evolution.

Nanoscale (2015-10-23)
Yunpeng Huang, Hengyi Lu, Huahao Gu, Jun Fu, Shuyi Mo, Chun Wei, Yue-E Miao, Tianxi Liu
ABSTRACT

Exploration of high-efficiency Pt-free electrochemical catalysts for hydrogen evolution reaction (HER) is considered as a great challenge for the development of sustainable and carbon dioxide free energy conversion systems. In this work, a unique hierarchical nanostructure of few-layered MoSe2 nanosheets perpendicularly grown on carbon nanotubes (CNTs) is synthesized through a one-step solvothermal reaction. This rationally designed architecture based on a highly conductive CNT substrate possesses fully exposed active edges and open structures for fast ion/electron transfer, thus leading to remarkable HER activity with a low onset potential of -0.07 V vs. RHE (reversible hydrogen electrode), a small Tafel slope of 58 mV per decade and excellent long-cycle stability. Therefore, this noble-metal-free and highly efficient catalyst enables prospective applications for industrial, renewable hydrogen production.

MATERIALS
Product Number
Brand
Product Description

Selenium, foil, 25x25mm, thickness 3mm, 99.95%
Selenium, pellets, < 5mm, ≥99.999%
Sigma-Aldrich
Hydrazine hydrate, reagent grade, N2H4 50-60 %
Sigma-Aldrich
Selenium, pellets, <5 mm particle size, ≥99.999% trace metals basis
Sigma-Aldrich
Selenium, powder, −100 mesh, 99.99% trace metals basis
Sigma-Aldrich
Selenium, pellets, <5 mm, ≥99.99% trace metals basis
Sigma-Aldrich
Selenium, powder, −100 mesh, ≥99.5% trace metals basis
Sigma-Aldrich
Hydrazine monohydrate, N2H4 64-65 %, reagent grade, 98%
Sigma-Aldrich
Hydrazine hydrate solution, puriss. p.a., 24-26% in H2O (RT)