DataVXACS Applied Energy MaterialsPaper
journal article·2019-12-23

Ion Exchange Synthesis of Cobalt Ion Modified Titanate Nanoarray as an Electrocatalyst toward Efficient Hydrogen Evolution Reaction

Hongfang Du, Zhi Liang Zhao, Lian Ying Zhang, Yubin Niu, Ting Yu, Chang Ming Li

ACS Applied Energy Materials· Volume 2· Issue 12
Publisher page
Source abstract

Abstract

Cobalt ion modified titanate nanoarray (CTO NA) with a three-dimensional hierarchical structure is synthesized via a facile ion exchange strategy and further developed as an electrocatalyst toward efficient hydrogen evolution reaction (HER). In 0.1 M KOH solution, CTO NA exhibits a low Tafel slope of 93 mV dec–1 and a small overpotential of 199 mV at a current density of 10 mA cm–2 as well as high electrochemical stability for HER. The superior electrocatalytic performance of CTO NA is attributed to the unique chemical composition and layered crystal structure for improved electrode kinetics. Meanwhile, the three-dimensional hierarchical morphology of CTO NA also contributes to fast charge transfer and greatly enhanced mass transport in electrochemical reaction. This work holds a great promise for the as-prepared CTO NA to be an alternative for the noble metals based catalysts toward large scale hydrogen production via water electrolysis.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Advanced Photocatalysis Techniques

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

Affiliations

Institute for Clean Energy and Advanced Materials, Southwest University, Chongqing 400715, People’s Republic of China

Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore

Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing 400715, People’s Republic of China

Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou 215011, People’s Republic of China

Institute of Advanced Cross-Field Science and College of Life Science, Qingdao University, Qingdao 200671, People’s Republic of China

Funding

Ministry of Education - Singapore · Southwest University · Institute for Clean Energy & Advanced Materials · Graduate Student Research Innovation Project of Chongqing

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