ORCID Profile
0000-0003-2277-849X
Current Organisation
Argonne National Laboratory
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Publisher: Wiley
Date: 22-06-2022
DOI: 10.1002/EEM2.12389
Abstract: Developing efficient oxygen reduction reaction (ORR) catalyst is essential for the practical application of Zn‐air batteries (ZABs). In this contribution, we develop a novel zeolitic imidazolate framework (ZIF)‐mediated strategy to anchor Co species on N‐doped carbon nanorods for efficient ORR. Featuring ultrahigh N‐doping (10.29 at.%), monodisperse Co nanocrystal decoration, and well‐dispersed Co‐N x functionalization, the obtained Co‐decorated N‐doped carbon nanorods (Co@NCNR) exhibit a decent ORR performance comparable to commercial Pt/C in alkaline media. Aqueous ZABs have been assembled using Co@NCNR as the cathode catalyst. The assembled ZABs manifest high initial open‐circuit voltage as well as high energy density. In addition, the Co@NCNR also demonstrates ideal ORR performance in quasi‐solid‐state ZABs.
Publisher: Wiley
Date: 06-2017
Abstract: A facile, aqueous, self-catalyzed polymerization method has been developed for the mass production of monodisperse phenolic resin and carbon microspheres. The synthesis is mainly based on the self-catalyzed reaction between phenol derivatives and the hydrolysis products of hexamethylenetetramine (HMTA). The obtained phenolic resin spheres have a tunable size of 0.8-6.0 μm, depending on the type of phenol and HMTA henol ratio. Treating the phenolic resin with steam at an elevated temperature results in monodisperse carbon microspheres with abundant micropores, high surface area, and rich surface functionality. The resultant carbon spheres exhibit a size-dependent electrical double-layer capacitor performance the capacitance increases with decreasing particle size. The nitrogen and oxygen codoped carbon spheres with the smallest size (≈600 nm) deliver a high specific capacitance (282 F g
Publisher: American Chemical Society (ACS)
Date: 03-11-2017
Abstract: One-dimensional heterostructures have attracted significant interests in various applications. However, the selective deposition of shell material on specific sites of the backbone material remains a challenge. Herein, a facile facet-selective deposition strategy has been developed for the construction of heterostructured α-MoO
Publisher: American Chemical Society (ACS)
Date: 03-02-2018
DOI: 10.1021/ACS.NANOLETT.7B04889
Abstract: Rechargeable aqueous zinc-ion batteries are highly desirable for grid-scale applications due to their low cost and high safety however, the poor cycling stability hinders their widespread application. Herein, a highly durable zinc-ion battery system with a Na
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA00073F
Abstract: FeN x and γ-Fe 2 O 3 nanoparticle co-functionalized hollow graphitic carbon nanofibers exhibit desirable ORR electrocatalytic activity.
Publisher: American Chemical Society (ACS)
Date: 30-10-2023
Publisher: Springer Science and Business Media LLC
Date: 03-08-2023
DOI: 10.1038/S41467-023-40342-6
Abstract: Electrochemical conversion of CO 2 to formic acid using Bismuth catalysts is one the most promising pathways for industrialization. However, it is still difficult to achieve high formic acid production at wide voltage intervals and industrial current densities because the Bi catalysts are often poisoned by oxygenated species. Herein, we report a Bi 3 S 2 nanowire-ascorbic acid hybrid catalyst that simultaneously improves formic acid selectivity, activity, and stability at high applied voltages. Specifically, a more than 95% faraday efficiency was achieved for the formate formation over a wide potential range above 1.0 V and at ere-level current densities. The observed excellent catalytic performance was attributable to a unique reconstruction mechanism to form more defective sites while the ascorbic acid layer further stabilized the defective sites by trapping the poisoning hydroxyl groups. When used in an all-solid-state reactor system, the newly developed catalyst achieved efficient production of pure formic acid over 120 hours at 50 mA cm –2 (200 mA cell current).
Publisher: American Chemical Society (ACS)
Date: 04-12-2017
Abstract: Aqueous zinc-ion batteries attract increasing attention due to their low cost, high safety, and potential application in stationary energy storage. However, the simultaneous realization of high cycling stability and high energy density remains a major challenge. To tackle the above-mentioned challenge, we develop a novel Zn/V
Publisher: Wiley
Date: 30-01-2023
DOI: 10.1002/EEM2.12560
Abstract: The Fe–N–C material represents an attractive oxygen reduction reaction electrocatalyst, and the FeN 4 moiety has been identified as a very competitive catalytic active site. Fine tuning of the coordination structure of FeN 4 has an essential impact on the catalytic performance. Herein, we construct a sulfur‐modified Fe–N–C catalyst with controllable local coordination environment, where the Fe is coordinated with four in‐plane N and an axial external S. The external S atom affects not only the electron distribution but also the spin state of Fe in the FeN 4 active site. The appearance of higher valence states and spin states for Fe demonstrates the increase in unpaired electrons. With the above characteristics, the adsorption and desorption of the reactants at FeN 4 active sites are optimized, thus promoting the oxygen reduction reaction activity. This work explores the key point in electronic configuration and coordination environment tuning of FeN 4 through S doping and provides new insight into the construction of M–N–C‐based oxygen reduction reaction catalysts.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9CC10036A
Abstract: Cobalt decorated nitrogen-doped carbon bowls (Co@NCB) demonstrate better ORR performance than Pt/C in terms of half-wave potential and stability.
Publisher: Springer Science and Business Media LLC
Date: 04-03-2021
DOI: 10.1038/S41467-021-21750-Y
Abstract: Direct experimental observations of the interface structure can provide vital insights into heterogeneous catalysis. Ex les of interface design based on single atom and surface science are, however, extremely rare. Here, we report Cu–Sn single-atom surface alloys, where isolated Sn sites with high surface densities (up to 8%) are anchored on the Cu host, for efficient electrocatalytic CO 2 reduction. The unique geometric and electronic structure of the Cu–Sn surface alloys (Cu 97 Sn 3 and Cu 99 Sn 1 ) enables distinct catalytic selectivity from pure Cu 100 and Cu 70 Sn 30 bulk alloy. The Cu 97 Sn 3 catalyst achieves a CO Faradaic efficiency of 98% at a tiny overpotential of 30 mV in an alkaline flow cell, where a high CO current density of 100 mA cm −2 is obtained at an overpotential of 340 mV. Density functional theory simulation reveals that it is not only the elemental composition that dictates the electrocatalytic reactivity of Cu–Sn alloys the local coordination environment of atomically dispersed, isolated Cu–Sn bonding plays the most critical role.
Publisher: American Chemical Society (ACS)
Date: 19-09-2022
DOI: 10.1021/JACS.2C03844
Abstract: The proton, as the cationic form of the lightest element-H, is regarded as most ideal charge carrier in "rocking chair" batteries. However, current research on proton batteries is still at its infancy, and they usually deliver low capacity and suffer from severe acidic corrosion. Herein, electrochemically activated metallic H
Publisher: Elsevier BV
Date: 09-2022
Publisher: American Chemical Society (ACS)
Date: 07-07-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA07574C
Abstract: The quasi-solid-state NF@NiO//Zn batteries can successfully power a neon sign consisting of 42 light emission diodes (LEDs).
Publisher: American Chemical Society (ACS)
Date: 09-08-2022
DOI: 10.1021/JACS.2C03982
Publisher: Springer Science and Business Media LLC
Date: 06-03-2017
DOI: 10.1038/NCOMMS14264
Abstract: Carbon materials are generally preferred as anodes in supercapacitors however, their low capacitance limits the attained energy density of supercapacitor devices with aqueous electrolytes. Here, we report a low-crystalline iron oxide hydroxide nanoparticle anode with comprehensive electrochemical performance at a wide potential window. The iron oxide hydroxide nanoparticles present capacitances of 1,066 and 716 F g −1 at mass loadings of 1.6 and 9.1 mg cm −2 , respectively, a rate capability with 74.6% of capacitance retention at 30 A g −1 , and cycling stability retaining 91% of capacitance after 10,000 cycles. The performance is attributed to a dominant capacitive charge-storage mechanism. An aqueous hybrid supercapacitor based on the iron oxide hydroxide anode shows stability during float voltage test for 450 h and an energy density of 104 Wh kg −1 at a power density of 1.27 kW kg −1 . A packaged device delivers gravimetric and volumetric energy densities of 33.14 Wh kg −1 and 17.24 Wh l −1 , respectively.
Publisher: American Chemical Society (ACS)
Date: 18-12-2018
No related grants have been discovered for Jiantao Li.