Author
Jiechen Li
Bio: Jiechen Li is an academic researcher from Shandong Normal University. The author has contributed to research in topics: Catalysis & Medicine. The author has an hindex of 1, co-authored 4 publications receiving 4 citations.
Topics: Catalysis, Medicine, Oxide, Acceleration, Oxygen evolution
Papers
More filters
TL;DR: In this article , the authors discuss the significant role of the pre-oxidation process during the urea electrooxidation reaction, and summarize detailed strategies and recent advances in promoting the UOR reaction, including modulation of the crystallinity, active phase engineering, defect engineering, elemental incorporation and constructing hierarchical nanostructures.
46 citations
TL;DR: In this article, an efficient lanthanum-doped α-Ni(OH)2 bifunctional catalyst with a 1D-2D-3D hierarchical nanostructure was developed.
25 citations
19 citations
TL;DR: In this paper , co-based nanocatalysts with variable degrees of sulfurization (DoS) were fabricated for the oxygen evolution reaction (OER), and the partially sulfurized catalyst with a medium DoS could exhibit a promoted preoxidation process, leading to a highly efficient and ultrastable OER performance.
16 citations
Cited by
More filters
TL;DR: In this paper, a self-sacrificial templated route was proposed to fabricate uniform CuFe Prussian blue analogue (PBA) nanocubes grown on Cu(OH)2 nanoarrays as efficient pre-catalysts for both OER and UOR catalysis.
46 citations
TL;DR: In this article , the authors discuss the significant role of the pre-oxidation process during the urea electrooxidation reaction, and summarize detailed strategies and recent advances in promoting the UOR reaction, including modulation of the crystallinity, active phase engineering, defect engineering, elemental incorporation and constructing hierarchical nanostructures.
46 citations
TL;DR: In this paper , self-supported ruthenium-doped cuprous oxide nanochains were synthesized on commercial copper foam (Ru-Cu2O/CF).
Abstract: The sluggish kinetics of oxygen evolution reaction (OER) hampers the conversion of renewable energies into hydrogen through an electrocatalytic process. Then, the hydrazine oxidation reaction (HzOR) is a promising anodic reaction to substitute OER, which can decrease the water-splitting voltage. Herein, self-supported ruthenium-doped cuprous oxide nanochains were synthesized on commercial copper foam (Ru-Cu2O/CF). The Ru-Cu2O/CF provides superior hydrogen evolution reaction (HER) and HzOR performances owing to its specific morphology, superhydrophilic surface, porous support and Ru doping. When used in alkaline or neutral electrolytes, the Ru-Cu2O/CF is capable of driving 10 mA cm−2 only at 31 and 51 mV, respectively. In HzOR, it is possible to achieve a superlow potential of − 41 mV at 10 mA cm−2. In an electrolytic cell with a Ru-Cu2O/CF both as cathode and anode, a voltage of 17.4 mV is needed to reach 10 mA cm−2, which is powered by renewable energies.
29 citations
TL;DR: In this paper , the effect of the metal and non-metal-doping in transition metal oxide-based electrocatalysts for the rational design of high-performance catalysts in the future is discussed.
24 citations
TL;DR: The built-in electric field (BIEF) as discussed by the authors has been proposed for efficient energy electrocatalysis and has been shown to improve the performance of electrocatalytic reactions, e.g., hydrogen evolution reaction/oxygen evolution reaction in overall water splitting.
Abstract: To utilize intermittent renewable energy as well as achieve the goals of peak carbon dioxide emissions and carbon neutrality, various electrocatalytic devices have been developed. However, the electrocatalytic reactions, e.g., hydrogen evolution reaction/oxygen evolution reaction in overall water splitting, polysulfide conversion in lithium–sulfur batteries, formation/decomposition of lithium peroxide in lithium–oxygen batteries, and nitrate reduction reaction to degrade sewage, suffer from sluggish kinetics caused by multielectron transfer processes. Owing to the merits of accelerated charge transport, optimized adsorption/desorption of intermediates, raised conductivity, regulation of the reaction microenvironment, as well as ease to combine with geometric characteristics, the built-in electric field (BIEF) is expected to overcome the above problems. Here, we give a Review about the very recent progress of BIEF for efficient energy electrocatalysis. First, the construction strategies and the characterization methods (qualitative and quantitative analysis) of BIEF are summarized. Then, the up-to-date overviews of BIEF engineering in electrocatalysis, with attention on the electron structure optimization and reaction microenvironment modulation, are analyzed and discussed in detail. In the end, the challenges and perspectives of BIEF engineering are proposed. This Review gives a deep understanding on the design of electrocatalysts with BIEF for next-generation energy storage and electrocatalytic devices.
24 citations