Xiang Ren

ORCID: 0000-0002-4321-4282
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About
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Research Areas
  • Advanced biosensing and bioanalysis techniques
  • Electrochemical Analysis and Applications
  • Advanced Nanomaterials in Catalysis
  • Biosensors and Analytical Detection
  • Advanced Photocatalysis Techniques
  • Electrocatalysts for Energy Conversion
  • Electrochemical sensors and biosensors
  • Advanced battery technologies research
  • Ammonia Synthesis and Nitrogen Reduction
  • Nanocluster Synthesis and Applications
  • Fuel Cells and Related Materials
  • Analytical Chemistry and Sensors
  • Advancements in Battery Materials
  • Gas Sensing Nanomaterials and Sensors
  • Meat and Animal Product Quality
  • Geological and Geochemical Analysis
  • Luminescence and Fluorescent Materials
  • Nanomaterials for catalytic reactions
  • Protein Hydrolysis and Bioactive Peptides
  • Molecular Junctions and Nanostructures
  • Caching and Content Delivery
  • Quantum Dots Synthesis And Properties
  • Hydrogen Storage and Materials
  • Molecular Sensors and Ion Detection
  • Metal-Organic Frameworks: Synthesis and Applications

University of Jinan
2016-2025

Dalian Polytechnic University
2021-2024

University of Electronic Science and Technology of China
2018-2024

West China Hospital of Sichuan University
2019-2024

State Key Laboratory of Biotherapy
2019-2024

Sichuan University
2017-2024

State Grid Corporation of China (China)
2024

Tongji Hospital
2022-2024

Huazhong University of Science and Technology
2022-2024

Peking University
2024

Abstract The discovery of stable and noble‐metal‐free catalysts toward efficient electrochemical reduction nitrogen (N 2 ) to ammonia (NH 3 is highly desired significantly critical for the earth cycle. Here, based on theoretical predictions, MoS first utilized catalyze N reaction (NRR) under room temperature atmospheric pressure. Electrochemical tests reveal that such catalyst achieves a high Faradaic efficiency (1.17%) NH yield (8.08 × 10 −11 mol s −1 cm at −0.5 V versus reversible hydrogen...

10.1002/adma.201800191 article EN Advanced Materials 2018-05-28

Conversion of naturally abundant nitrogen to ammonia is a key (bio)chemical process sustain life and represents major challenge in chemistry biology. Electrochemical reduction emerging as sustainable strategy for artificial fixation at ambient conditions by tackling the hydrogen- energy-intensive operations Haber-Bosch process. However, it severely challenged activation requires efficient catalysts reaction. Here we report that boron carbide nanosheet acts metal-free catalyst...

10.1038/s41467-018-05758-5 article EN cc-by Nature Communications 2018-08-22

It is vitally essential to design highly efficient and cost-effective bifunctional electrocatalysts toward water splitting. Herein, we report the development of P-doped Co3O4 nanowire array on nickel foam (P-Co3O4/NF) from through low-temperature annealing, using NaH2PO2 as P source. As a 3D catalyst, such P-Co3O4/NF demonstrates superior performance for oxygen evolution reaction with low overpotential (260 mV at 20 mA cm–2), small Tafel slope (60 dec–1), satisfying durability in 1.0 M KOH....

10.1021/acscatal.7b03594 article EN ACS Catalysis 2018-02-06

It is highly desired but still remains challenging to design and develop a Co-based nanoparticle-encapsulated conductive nanoarray at room temperature for high-performance water oxidation electrocatalysis. Here, it reported that room-temperature anodization of Co(TCNQ)2 (TCNQ = tetracyanoquinodimethane) nanowire array on copper foam alkaline pH leads in situ electrochemcial TCNQ- into water-insoluable TCNQ embedding Co(OH)2 nanoparticles. Such -TCNQ/CF shows superior catalytic activity...

10.1002/adma.201705366 article EN Advanced Materials 2018-01-15

Developing earth-abundant and high-performance electrocatalysts toward the alkaline hydrogen evolution reaction (HER) is highly desired. In this communication, we report a Mn-doped Ni2P nanosheet array on nickel foam (Mn-Ni2P/NF) as high-efficiency electrocatalyst for HER in solutions. This Mn-Ni2P/NF can drive 20 mA cm-2 at an overpotential of 103 mV 1.0 M KOH, which 82 less than that Ni2P/NF. addition, it also demonstrates excellent long-term electrochemical durability least 25 h. work...

10.1039/c7cc06278h article EN Chemical Communications 2017-01-01

The synthesis of NH3 is mainly dominated by the traditional energy-consuming Haber–Bosch process with a mass CO2 emission. Electrochemical conversion N2 to emerges as carbon-free for sustainable artificial reduction reaction (NRR), but requires an efficient and stable electrocatalyst. Here, we report that Mo2C nanorod serves excellent NRR electrocatalyst fixation strong durability acceptable selectivity under ambient conditions. Such catalyst shows high Faradaic efficiency 8.13% yield 95.1...

10.1021/acscentsci.8b00734 article EN publisher-specific-oa ACS Central Science 2018-12-19

A highly attractive, but still a key challenge, is the development of earth-abundant electrocatalysts for efficient NH3 electrosynthesis via N2 reduction reaction (NRR). In this communication, we report Mo2N nanorod as and selective NRR electrocatalyst artificial fixation in acidic electrolytes under ambient conditions. 0.1 M HCl, catalyst achieved high Faradaic efficiency 4.5% with yield 78.4 μg h-1 mgcat.-1 at -0.3 V vs. reversible hydrogen electrode, thus outperforming most reported...

10.1039/c8cc03627f article EN Chemical Communications 2018-01-01

MoO<sub>3</sub> nanosheets act as an efficient electrocatalyst for N<sub>2</sub> fixation to NH<sub>3</sub> with excellent selectivity at ambient conditions. In 0.1 M HCl, they show high activity yield of 4.80 × 10<sup>−10</sup> mol s<sup>−1</sup> cm<sup>−2</sup> (29.43 μg h<sup>−1</sup> mg<sub>cat.</sub><sup>−1</sup>) and a faradaic efficiency 1.9%.

10.1039/c8ta03974g article EN Journal of Materials Chemistry A 2018-01-01

NH3 serves as an attractive hydrogen storage medium and a renewable energy sector for sustainable future. Electrochemical reduction is feasible ambient reaction to convert N2 NH3, while it needs efficient electrocatalysts the (NRR) meet challenge associated with activation. In this Letter, we report on our recent experimental finding that TiO2 nanosheets array Ti plate (TiO2/Ti) effective electrochemical conversion at conditions. When tested in 0.1 M Na2SO4, such TiO2/Ti attains high yield...

10.1021/acsami.8b06647 article EN ACS Applied Materials & Interfaces 2018-08-17

In 1.0 M KOH, CoP–CeO<sub>2</sub> nanosheets film on Ti mesh (CoP–CeO<sub>2</sub>/Ti) attains 10 mA cm<sup>−2</sup> at overpotential of 43 mV due to its lower water dissociation free energy and more optimal hydrogen adsorption than CoP.

10.1039/c7ta10237b article EN Journal of Materials Chemistry A 2018-01-01

Electrochemical N2 reduction reaction (NRR) under ambient conditions offers us an environmentally friendly route for artificial synthesis of NH3. However, up to now, few noble-metal-free electrocatalysts with satisfactory catalytic activities have been explored. In this Letter, we demonstrate that MoN nanosheets array on carbon cloth (MoN NA/CC) acts as a high-performance NRR electrocatalyst toward NH3 electrosynthesis in 0.1 M HCl conditions. This catalyst achieves large yield 3.01 × 10–10...

10.1021/acssuschemeng.8b01438 article EN ACS Sustainable Chemistry & Engineering 2018-07-13

Ultrafine PtCo nanoparticles decorated Co nanowires on Ti mesh deliver an ultrahigh current density of 46.5 mA cm<sup>−2</sup> at overpotential 70 mV in 1.0 M KOH.

10.1039/c8nr02071j article EN Nanoscale 2018-01-01

An <italic>in situ</italic> electrochemically developed core/shell structured Ni<sub>3</sub>N@Ni–Bi nanosheet array behaves as an efficient bifunctional catalyst for overall water splitting.

10.1039/c7ta02333b article EN Journal of Materials Chemistry A 2017-01-01

Electrolytic hydrogen generation needs efficient and durable electrocatalysts for the evolution reaction. In this Letter, first time, we report on development of P-doped Ag nanoparticles embedded in N-doped carbon nanoflake (denoted as "P-Ag@NC") effective electrocatalysis. When tested 0.5 M H2SO4, such P-Ag@NC demands overpotential only 78 mV to drive a catalytic current density 10 mA cm–2, which is 198 less than that Ag@NC counterpart. Remarkably, catalyst also shows strong long-term...

10.1021/acssuschemeng.7b04732 article EN ACS Sustainable Chemistry & Engineering 2018-03-01

The development of efficient earth-abundant electrocatalysts for N2 reduction to ammonia (NH3) under ambient conditions is critical achieving a low-carbon and sustainable-energy society. Herein, we report the VN nanosheet array on Ti mesh as an active selective electrocatalyst reaction (NRR) in acid at room temperature atmospheric pressure 0.1 M HCl. A rate NH3 formation 8.40 × 10–11 mol s–1 cm–2 obtained −0.50 V with Faradaic efficiency 2.25%. Notably, such catalyst material also exhibits...

10.1021/acssuschemeng.8b01261 article EN ACS Sustainable Chemistry & Engineering 2018-07-13

A Co-carbonate-hydroxide nanowire array on nickel foam (CoCH/NF) is durable for water oxidation electrocatalysis with superior activity to its Co(CO<sub>3</sub>)<sub>0.5</sub>(OH)·0.11H<sub>2</sub>O nanoarray precursor CoCHH/NF in 1.0 M K–Ci.

10.1039/c7nr07269d article EN Nanoscale 2017-01-01

A MoS<sub>2</sub> nanosheet–reduced graphene oxide hybrid behaves as a high-performance and stable catalyst for ambient electrochemical N<sub>2</sub>-to-NH<sub>3</sub> fixation.

10.1039/c8ta10433f article EN Journal of Materials Chemistry A 2019-01-01

Abstract It is widely known that high‐performance electrochemiluminescence (ECL) emitters play a crucial part in improving the detection sensitivity of ECL strategy. Through combination aggregation‐induced emission luminogens (AIEgens), 1,1,2,2‐tetra(4‐carboxylbiphenyl)ethylene (H 4 TCBPE) with Zr(IV) cations, dumbbell plate‐shaped metal−organic framework (MOF) high luminous efficiency synthesized as tags. The resultant MOF exhibits stronger activity than those H TCBPE monomers and...

10.1002/smll.202106567 article EN Small 2022-02-13

The theory of aggregation-induced electrochemiluminescence (AIECL) has introduced new vitality into preparing (ECL) emitters. However, the progress in application biosensing analysis been slow owing to lack AIECL-based functional nanomaterials. Herein, a biosensor was fabricated using mesoporous silica nanosphere (MSN) matrix-confined 1,1,2,2-tetra(4-carboxylphenyl)ethylene (TPE) as well-ordered ECL emitter and self-designed WHPWSYC (WC-7) heptapeptide target capturer for CD44 detection. TPE...

10.1021/acs.analchem.3c00608 article EN Analytical Chemistry 2023-04-11

This Review provides a comprehensive overview of recent advancements in CTF materials and CTF-based batteries. The aims to make batteries viable for next-generation high-energy battery systems.

10.1039/d3ee01360j article EN Energy & Environmental Science 2023-01-01

In this work, a sensitive signal-on electrochemiluminescence biosensor using liposome-encapsuled 1,1,2,2-tetra(4-carboxylphenyl)ethylene (TPE) as promising aggregation-induced (AIECL) emitter for detection of biomarkers was developed. Aggregation-induced enhancement occurs internally through the spatial confinement effect and intramolecular self-encapsulation encapsulating TPE triethylamine (TEA) molecules in liposome cavities. Peptide sequence WTGWCLNPEESTWGFCTGSF (WF-20) used to replace...

10.1021/acs.analchem.3c01957 article EN Analytical Chemistry 2023-06-07

In this Letter, a sensitive DNA sensing platform was developed using an indium-ion-coordinated 1,1,2,2-tetra(4-carboxylphenyl)ethylene (TPE) metal-organic gel (In-MOG) as aggregation-induced electrochemiluminescence (AIECL) emitter and nanosurface energy transfer (NSET) efficient quenching strategy for detecting aflatoxin B1 (AFB1), the most dangerous food toxin. The coordination occurred in indium ions, carboxyl groups restricted internal rotation vibration of TPE molecules, forcing them to...

10.1021/acs.analchem.4c02574 article EN Analytical Chemistry 2024-07-23

The effective applications of electrochemiluminescence (ECL) across various fields necessitate ongoing research into novel luminophores and ECL strategies. In this study, self-luminous flower-like nanocomposites (Eu-tcbpe-MOF) were prepared by coordination self-assembly using the aggregation-induced emission material 1,1,2,2-tetrakis(4-carboxyphenyl)ethylene (H4TCBPE) Eu(III) ions as precursors. Compared with monomers aggregates H4TCBPE, Eu-tcbpe-MOF exhibits stronger emission. Such enhanced...

10.1021/acs.analchem.3c05556 article EN Analytical Chemistry 2024-02-22
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