Ultrathin Ti3C2 nanowires derived from multi-layered bulks for high-performance hydrogen evolution reaction

Controlling the Surface Reactivity of Hybrid Ti3CN MXene via In‐situ Electrocatalysis

“…The hybrid Ti 3 CN outperforms the pure phase Ti 3 CN corroborating the −O/−OH functionalization mechanism, as the latter has more −F basal plane coverage due to LiF/H 2 SO 4 chemical etching. This hybrid also outperforms both multilayer Ti 3 C 2 , Ti 4 N 3 , and Ti 2 C, which exhibit overpotentials of −0.66 V, −0.82 V and −0.69 V, respectively (Table S2) [7,11,35] …”

“…This hybrid also outperforms both multilayer Ti 3 C 2 , Ti 4 N 3 , and Ti 2 C, which exhibit overpotentials of À 0.66 V, À 0.82 V and À 0.69 V, respectively (Table S2). [7,11,35] The HER kinetics were probed by acquiring Tafel plots which are presented in Figure 3b. The higher HER performance of the hybrid Ti 3 CN was further corroborated by a lower Tafel slope of 126 mV/decade as compared to the 253 mV/decade and 284 mV/decade for the Ti 3 AlCN and Ti 3 CN, respectively, indicating a Volmer rate determining step (Figure S2, Supplemental Information).…”

“…This HER activity was further improved by combining the Ti 3 CN and Ti 3 AlCN catalysts into one‐hybrid Ti 3 CN. The resulting catalyst undergoes a surface functionalization during electrocatalysis and exhibits an overpotential of ∼0.46 V vs. RHE (V) at 10 mA cm −2 , a Tafel slope of 126 mV dec −1 , and an exchange current density of 20 μA cm −2 in acidic electrolytes, outperforming the pristine Ti 3 CN, Ti 3 C 2 , and Ti 4 N 3 Mxenes , [11,35] . With this novel approach to tuning the HER activity of Mxene catalysts, other combination of MAX and Mxene materials should be investigated to further advance the field of HER catalysis using Mxenes.…”

2D Titanium carbide printed flexible ultrawideband monopole antenna for wireless communications

“…However, two major challenges remain on the construction of Ti 3 C 2 antenna. On the one hand, the utilization of polyethylene terephthalate (PET) and double-sided tape between Ti 3 C 2 layer and commercial circuit boards causes the sophisticated manufacturing process as well as hinders the direct conformal integration with flexible electronics and chips, thus leading to unsatisfactory power delivery and sensitive resonant frequency in wireless communication 12 . On the other hand, the working bandwidth is relatively narrow, and it is difficult to meet the ultrawideband requirements.…”

Recent advances in cobalt-based catalysts for efficient electrochemical hydrogen evolution: a review

“…[1][2][3][4][5][6][7][8] In addition, environmental problems such as smog and acid rain caused by the burning of fossil fuels are becoming more and more serious. [7][8][9][10] Therefore, it is urgent to find a new type of renewable energy that can replace traditional fossil fuels. [11][12][13][14] As early as the 1970s, the concept of "hydrogen economy" was proposed in the United States.…”