As an extreme sports game, Steep is fine. It's quietly thrilling to leap from the mountainside and the board beneath my feet, up to the overhead view of the entire mountain range, in which my rider is suddenly a dot, lost amongst the rumpled whiteness, and then instantly warp to a distant drop zone. "Early on, I was told by Steep's intrusive narrator to pretty much ignore the unlockable challenges and carve the mountain up in search of hidden lines and lonely spaces," he wrote, "This was good advice. Clearly nobody asked Eurogamer's Christian Donlan or myself, because we both really quite enjoyed it.Īdmittedly, my own positive feelings toward Steep have mostly been directed at the walls and ceiling until now, but Donlan awarded its sometimes uneven, but frequently exhilarating, blend of extreme sports and vast, freeing expanses, a Eurogamer Recommended back in the day. Steep originally released on Xbox One, PlayStation 4, and PC in 2016, to what Wikipedia tells me was a "mixed to average" critical response. Our findings provide new insights into breaking the water dissociation limit of Pt-based catalysts by coupling with a metal oxide.Fans of sports, the cold, and mostly going downward are in for a treat (as long as they own a PC) Ubisoft's enjoyable, open-world extreme winter sports extravaganza Steep is currently free to download and keep via Uplay. Furthermore, DFT calculations illustrate that the Volmer-step could be accelerated owing to the high OH − attraction of NiO nanoclusters, leading to the Pt nanoclusters exhibiting a balance of H* adsorption and desorption (Δ G H* = −0.082 eV). Importantly, the 1.5%Pt/NiO/NPC possesses a mass activity of 17.37 A mg −1 at the overpotential of 20 mV, over 54 times higher than the benchmark 20 wt% Pt/C. The optimal 1.5%Pt/NiO/NPC exhibited an excellent HER performance and stability with a low Tafel slope (only 22.5 mv dec −1) and an overpotential of 25.2 mV at 10 mA cm −2. NiO and Pt nanoclusters confined into the inherent pores of N-doped carbon derived from ZIF-8 (Pt/NiO/NPC) were designed to realize the structure of computational prediction and boost the alkaline hydrogen evolution.
Theoretical simulations firstly suggest that electron transfer from NiO to Pt nanoclusters could downshift the E d-band of Pt and result in the well-optimized adsorption/desorption strength of the hydrogen intermediate (H*), therefore accelerating the hydrogen generation rate. Herein, we propose to construct sub-nanometer NiO to tune the d-orbital electronic structure of nanocluster-level Pt for breaking the Volmer-step limitation and reducing the Pt-loading. However, the sluggish alkaline Volmer-step kinetics and the high-cost have hampered progress in developing high-performance HER catalysts.
Pt-based nanoclusters toward the hydrogen evolution reaction (HER) remain the most promising electrocatalysts.
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