Ultrasonic assisted synthesis of Zn-Ni bi-metal MOFs for interconnected Ni-N-C materials with enhanced electrochemical reduction of CO2

Confining Chainmail‐Bearing Ni Nanoparticles in N‐doped Carbon Nanotubes for Robust and Efficient Electroreduction of CO2

“…Such durability was much better than Ni@NC/NCNT, Ni@NC and NCNT (Figure S7c and d). More importantly, our catalyst surpassed most state‐of‐the‐art CO‐selective catalysts in terms of long‐term durability in CO 2 RR (Figure 4f and Table S7) [16,17,19,26,33–35,37,60,66,67,69,72,76–94] . These unambiguously demonstrated the advantage of the dual chainmail structure in reinforcing the catalyst and boosting the CO 2 RR performance.…”

A spherical multishell hollow carbon-based catalyst with a controllable N-species content for the oxygen reduction reaction in air-breathing cathode microbial fuel cells

“…The intensity ratios of I D / I G and A sp3 / A sp2 for S–Co–Ni/N–C-850 are ∼1.26 and 0.57, respectively, which are appreciably higher than those for S–Co–Ni/N–C-750 (1.06, 0.47), S–Co–Ni/N–C-750 (1.13, 0.42), S–Co/N–C-850 (1.17, 0.49), S–Ni/N–C-850 (1.16, 0.51) and S–N–C-850 (1.21, 0.54), which shows that S–Co–Ni/N–C-850 possesses more defect sites and preferably promotes the improvement in the ORR performance. 24…”

“…23 Besides S-N-C-850, the diffraction peaks that are attributed to the Co-Ni alloy appear on S-Co-Ni/ N-C-T, in agreement with the literature. 23,24 And the XRD diffraction peaks of the S-Co-Ni/N-C-T samples exhibit a shift in different degrees (Fig. S12 †), indicating the formation of the Co-Ni alloy.…”

Utilizing Metal-Organic Frameworks to Achieve High-Efficiency CO2 Electroreduction

“…The ultrasonic synthesis process has several advantages, including a quick reaction speed, ease of use, environmental friendliness, ability to be performed at room temperature, and energy efficiency. A Ni-ZIF-8 was synthesized by Ma et al for Ni-N-doped porous interconnected carbon (NiNPIC) in CO 2 RR, and ultrasonic irradiation was discovered to be crucial in forming linked Zn-Ni bi-MOFs [31]. Ultrasonic cavitation produces high temperatures and pressures, causing Zn 2+ , Ni 2+ , and MeIm to react fast, resulting in smaller uniform bimetallic Ni-ZIF-8 nanomaterials.…”