Minglei Song

Broad spectrum

Sheath blight

Cite

Citations (0)

Electrochemical‐Mediated Regenerable Fe^II Active Sites for Efficient Uranium Extraction at Ultra‐Low Cell Voltage

Angewandte Chemie International Edition (2023)

Yanyong Wang Yanjing Wang Minglei Song Siping Chen Jianrong Wei

Abstract Nano‐reduced iron (NRI) is a promising uranium adsorbent due to its strong reducibility and good selectivity, but it still faces the challenges of slow kinetics, limited and non‐renewable active sites. In this work, we realized high efficiency uranium extraction under ultra‐low cell voltage (−0.1 V) in seawater with 20 ppm UO 2 (NO 3 ) 2 solution by coupling electrochemical mediated Fe II /Fe III redox and uranium extraction. The adsorption capacity and extraction efficiency of NRI after electrochemical uranium extraction (EUE) could reach 452 mg/g and 99.1 %, respectively. Combined with quasi‐operando/operando characterization technologies, we clarified the mechanism of EUE and revealed that continuously regenerating Fe II active sites by electroreduction could significantly enhance the property of EUE. This work here provides a new electrochemical mediated and low energy consumption uranium extraction strategy which also provides a reference for other metal resource recovery.

Electrochemical cell

10.1002/anie.202217601

Cite

Citations (31)

Colloid self-assembly of c-axis oriented hydroxide thin films to boost the electrocatalytic oxidation reaction

Chemical Engineering Journal (2021)

Xinwei Dong Yiqiong Zhang Minglei Song Shasha Tao Hongfang Wang

Overpotential

Oxygen evolution

Glassy carbon

10.1016/j.cej.2021.130532

Cite

Citations (13)

Promoting surface reconstruction of NiFe layered double hydroxides via intercalating [Cr(C2O4)3]3− for enhanced oxygen evolution

Journal of Energy Chemistry (2022)

Yujie Wu Minglei Song Yucheng Huang Chung‐Li Dong Yingying Li

Oxygen evolution

Overpotential

Layered double hydroxides

10.1016/j.jechem.2022.06.045

Cite

Citations (32)

Platinum Modulates Redox Properties and 5‐Hydroxymethylfurfural Adsorption Kinetics of Ni(OH)₂ for Biomass Upgrading

Angewandte Chemie (2021)

Bo Zhou Yingying Li Yuqin Zou Wei Chen Zhou Wang

Abstract Nickel hydroxide (Ni(OH) 2 ) is a promising electrocatalyst for the 5‐hydroxymethylfurfural oxidation reaction (HMFOR) and the dehydronated intermediates Ni(OH)O species are proved to be active sites for HMFOR. In this study, Ni(OH) 2 is modified by platinum to adjust the electronic structure and the current density of HMFOR improves 8.2 times at the Pt/Ni(OH) 2 electrode compared with that on Ni(OH) 2 electrode. Operando methods reveal that the introduction of Pt optimized the redox property of Ni(OH) 2 and accelerate the formation of Ni(OH)O during the catalytic process. Theoretical studies demonstrate that the enhanced Ni(OH)O formation kinetics originates from the reduced dehydrogenation energy of Ni(OH) 2 . The product analysis and transition state simulation prove that the Pt also reduces adsorption energy of HMF with optimized adsorption behavior as Pt can act as the adsorption site of HMF. Overall, this work here provides a strategy to design an efficient and universal nickel‐based catalyst for HMF electro‐oxidation, which can also be extended to other Ni‐based catalysts such as Ni(HCO 3 ) 2 and NiO.

Non-blocking I/O

10.1002/ange.202109211

Cite

Citations (9)

Electrochemical‐Mediated Regenerable Fe^II Active Sites for Efficient Uranium Extraction at Ultra‐Low Cell Voltage

Angewandte Chemie (2023)

Yanyong Wang Yanjing Wang Minglei Song Siping Chen Jianrong Wei

Abstract Nano‐reduced iron (NRI) is a promising uranium adsorbent due to its strong reducibility and good selectivity, but it still faces the challenges of slow kinetics, limited and non‐renewable active sites. In this work, we realized high efficiency uranium extraction under ultra‐low cell voltage (−0.1 V) in seawater with 20 ppm UO 2 (NO 3 ) 2 solution by coupling electrochemical mediated Fe II /Fe III redox and uranium extraction. The adsorption capacity and extraction efficiency of NRI after electrochemical uranium extraction (EUE) could reach 452 mg/g and 99.1 %, respectively. Combined with quasi‐operando/operando characterization technologies, we clarified the mechanism of EUE and revealed that continuously regenerating Fe II active sites by electroreduction could significantly enhance the property of EUE. This work here provides a new electrochemical mediated and low energy consumption uranium extraction strategy which also provides a reference for other metal resource recovery.

Electrochemical cell

10.1002/ange.202217601

Cite

Citations (2)

Stannum-(II) dopant effects on morphology evolution and upconversion performance of Yb3+/Er3+:NaGdF4 crystals

Ceramics International (2019)

Lingwei Zeng Minglei Song Daqin Chen Hu Zhou Yuan Liu

Photon Upconversion

Nanorod

Emission intensity

10.1016/j.ceramint.2019.06.225

Cite

Citations (10)

Strengthening Fe(II)/Fe(III) Dynamic Cycling by Surface Sulfation to Achieve Efficient Electrochemical Uranium Extraction at Ultralow Cell Voltage

Environmental Science & Technology (2023)

Yanjing Wang Minglei Song Jianrong Wei Jie You Siping Chen

Electrochemically mediated Fe(II)/Fe(III) redox-coupled uranium extraction can efficiently reduce the cell voltage of electrochemical uranium extraction (EUE). How to regulate the surface structure to enhance the uranium acyl ion adsorption capacity and strengthen the Fe(II)/Fe(III) redox cycle process is crucial for EUE. In this work, we developed surface sulfated nanoreduced iron (S-NRI) for EUE and exhibited improved properties for EUE at an ultralow cell voltage (-0.1 V). Compared with a nanoreduced iron (NRI) adsorbent, S-NRI displayed faster electrochemical extraction kinetics properties and higher extraction efficiency and capacity for uranium. In a more complex seawater electrolyte containing uranyl ion concentration ranging from 1 to 20 ppm, the removal efficiency could reach almost ∼100% after EUE for 24 h. At a higher 50 ppm uranium acyl ion concentration in a seawater electrolyte, S-NRI exhibited higher extraction capacity (755.03 mg/g), which is better than 528.53 mg/g of NRI at a cell voltage of -0.1 V. Outstanding EUE property could be attributed to the fact that sulfate species (M-SO42-) on the S-NRI surface not only enhanced selective adsorption of uranyl ions but also strengthened the Fe(II)/Fe(III) redox cycle, which accelerated electron transfer between Fe(II) and U(VI), promoted the regeneration of Fe(II) active sites, and finally enhanced the EUE property.

Uranyl

10.1021/acs.est.3c05133

Cite

Citations (12)

Activated Ni–OH Bonds in a Catalyst Facilitates the Nucleophile Oxidation Reaction

Advanced Materials (2022)

Wei Chen Yanyong Wang Binbin Wu Jianqiao Shi Yingying Li

The nucleophile oxidation reaction (NOR) is of enormous significance for organic electrosynthesis and coupling for hydrogen generation. However, the nonuniform NOR mechanism limits its development. For the NOR, involving electrocatalysis and organic chemistry, both the electrochemical step and non-electrochemical process should be taken into account. The NOR of nickel-based hydroxides includes the electrogenerated dehydrogenation of the Ni2+ -OH bond and a spontaneous non-electrochemical process; the former determines the electrochemical activity, and the nucleophile oxidation pathway depends on the latter. Herein, the space-confinement-induced synthesis of Ni3 Fe layered double hydroxide intercalated with single-atom-layer Pt nanosheets (Ni3 Fe LDH-Pt NS) is reported. The synergy of interlayer Pt nanosheets and multiple defects activates Ni-OH bonds, thus exhibiting an excellent NOR performance. The spontaneous non-electrochemical steps of the NOR are revealed, such as proton-coupled electron transfer (PCET; Ni3+ -O + X-H = Ni2+ -OH + X• ), hydration, and rearrangement. Hence, the reaction pathway of the NOR is deciphered, which not only helps to perfect the NOR mechanism, but also provides inspiration for organic electrosynthesis.

Electrosynthesis

Proton-Coupled Electron Transfer

10.1002/adma.202105320

Cite

Citations (114)

Platinum Modulates Redox Properties and 5‐Hydroxymethylfurfural Adsorption Kinetics of Ni(OH)₂ for Biomass Upgrading

Angewandte Chemie International Edition (2021)

Bo Zhou Yingying Li Yuqin Zou Wei Chen Zhou Wang

Abstract Nickel hydroxide (Ni(OH) 2 ) is a promising electrocatalyst for the 5‐hydroxymethylfurfural oxidation reaction (HMFOR) and the dehydronated intermediates Ni(OH)O species are proved to be active sites for HMFOR. In this study, Ni(OH) 2 is modified by platinum to adjust the electronic structure and the current density of HMFOR improves 8.2 times at the Pt/Ni(OH) 2 electrode compared with that on Ni(OH) 2 electrode. Operando methods reveal that the introduction of Pt optimized the redox property of Ni(OH) 2 and accelerate the formation of Ni(OH)O during the catalytic process. Theoretical studies demonstrate that the enhanced Ni(OH)O formation kinetics originates from the reduced dehydrogenation energy of Ni(OH) 2 . The product analysis and transition state simulation prove that the Pt also reduces adsorption energy of HMF with optimized adsorption behavior as Pt can act as the adsorption site of HMF. Overall, this work here provides a strategy to design an efficient and universal nickel‐based catalyst for HMF electro‐oxidation, which can also be extended to other Ni‐based catalysts such as Ni(HCO 3 ) 2 and NiO.

5-hydroxymethylfurfural

10.1002/anie.202109211

Cite

Citations (256)

Papers

Citation

H-Index

i-10 index

Papers

Citation

H-Index

i-10 index