Atomic vacancies in graphenic lattice can be applied as sieve pores for sieving atoms, ions and molecules. In their Research Article (DOI: 10.1002/anie.202010630), A. Khlobystov, U. Kaiser and co‐workers report the direct observation of the permeation of single palladium atoms passing one‐by‐one through a vacancy defect in a single‐walled carbon nanotube by transmission electron microscopy. The curvature of the carbon lattice drives the permeation in the direction from the concave to the convex side of the membrane due to the difference between metal–carbon bonding with opposite sides.
https://ift.tt/32BL6Hn
Porous graphene has shown promise as a new generation of selective membrane for sieving atoms, ions and molecules. However, the atomistic mechanisms of permeation through defects in the graphenic lattice are still unclear and remain unobserved in action, at the atomic level. Here, the direct observation of palladium atoms from a nanoparticle and passing through a defect in a single‐walled carbon nanotube one‐by‐one has been achieved with atomic resolution in real time, revealing key stages of the atomic permeation. Bonding between the moving atom and dangling bonds around the orifice, immediately before and after passing through the subnano‐pore, plays an important role in the process. Curvature of the graphenic lattice crucially defines the direction of permeation from concave to convex side due to a difference in metal‐carbon bonding at the curved surfaces as confirmed by density functional theory calculations, demonstrating the potential of porous carbon nanotube for atom sieving.
https://ift.tt/3bVQZT2
Vacancy defect‐rich Pt‐Cu nanowire networks (VCu‐PtCu) exhibit superior electrocatalytic performance for the oxygen reduction reaction, in which the mass activity is 14.1 times higher than for commercial Pt/C (20 %.wt, JM), and is currently the best performance among unsupported Pt‐based nanomaterials. The Tafel plot shows that VCu‐PtCu delivers a mass activity (MA) 7.2 times higher than the 2020 target set by the US Department of Energy (DOE).
Abstract
Vacancy defects of catalysts have been extensively studied and proven to be beneficial to various electrocatalytic reactions. Herein, an ultra‐stable three‐dimensional PtCu nanowire network (NNW) with ultrafine size, self‐supporting rigid structure, and Cu vacancy defects has been developed. The vacancy defect‐rich PtCu NNW exhibits an outstanding performance for the oxygen reduction reaction (ORR), with a mass activity 14.1 times higher than for the commercial Pt/C catalyst (20 %.wt, JM), which is currently the best performance. The mass activity of the PtCu NNW for methanol oxidation reaction (MOR) is 17.8 times higher than for the commercial Pt/C catalyst. Density‐functional theory (DFT) calculations indicate that the introduction of Cu vacancies enhances the adsorption capacity of Pt atoms to the HO* intermediate and simultaneously weakens the adsorption for the O* intermediate. This work presents a facile strategy to assemble efficient electrocatalysts with abundant vacancy defects, at the same time, provides an insight into the ORR mechanism in acidic solution.
https://ift.tt/3avBeQE
Journal of the American Chemical SocietyDOI: 10.1021/jacs.9b12113
https://ift.tt/388rhbz
Link - http://www.ingentaconnect.com/content/asp/jctn/2011/00000008/00000004/art00037
Does anyone have access to this? Thanks
Today, the House is expected to vote on the Build Back Better (BBB) bill, a spending package that is a signature piece of President Biden’s legislative agenda that contains significant social infrastructure spending on health care and child care, as well as large investments to tackle climate change. The vote comes in the wake of a vote earlier this month on the Bipartisan Infrastructure Framework, which was a bill that passed by a wide bipartisan margin in the Senate (including the vote of GOP Senate minority leader Mitch McConnell) and with a dozen or so House Republicans backing it as well.
Moderate Democrats in the House had declined to vote for BBB until the nonpartisan Congressional Budget Office (CBO) completed its assessment on the expected cost of the bill. Citing inflation concerns, moderate Democrats such as Oregon Congressman Kurt Schrader and New Jersey Congressman Josh Gottheimer made a push to ensure that the bill would not add to the deficit over its 10 year period. CBO announced earlier this morning that its assessment would be completed later this afternoon, at which point Democrats expect to begin the process of voting on the bill. Unlike the Bipartisan Infrastructure Framework, BBB is not expected to attract any Republican votes, meaning Democrats, who hold the House by a narrow 221-213 margin (one vacancy), cannot afford to suffer many defections, and will require the support of all wings of the party to pass the bill.
From there, the bill will head to the Senate, which is expected to continue the process. BBB was passed under reconciliation instructions, meaning that certain pieces of the legislation, particularly immigration reform, may be further removed from the final bill that passes the upper chamber. Democrats cannot afford defections at all in the Senate, which they hold by virtue of Vice President Harris’ tiebreaking vote, and negotiations are still under way with centrist members of the Democratic caucus in the Senate to secure support, particularly from West Virginia Senator Joe Manchin, and Arizona Senator Kyrsten Sinema.
Watch Live:
* <https://live.house.gov/>
Victor Frankenstein was raised in utmost privilege: his every need and want was met, his parents did not command him but exchanged with him a compliant and attuned respect, his education impassioned him to learning, and as eldest he was the "destined successor" of his noble father, Alphonse Frankenstein.
>Such was our domestic circle, from which care and pain seemed for ever banished. My father directed our studies, and my mother partook of our enjoyments. Neither of us possessed the slightest pre-eminence over the other; the voice of command was never heard amongst us; but mutual affection engaged us all to comply with and obey the slightest desire of each other.
Such an upbringing many people would kill to have, but it gave him a crippling blind spot: he didn't register the reality of evil until his own hands fashioned the creature whose later evil would unravel his entire world. Surely he knew of evil from books and news, but he didn't cite any encounter with evil while recounting his formative events. As such, he was ill-equipped to understand the ramifications of creating the creature, whom I'll call Adam per his wish:
>Remember, that I am thy creature: I ought to be thy Adam; but I am rather the fallen angel, whom thou drivest from joy for no misdeed.
While reading, I took detailed commentary notes: Letter 1 - Chapter 1, Chapter 5 - Chapter 11, Chapter 12 - Chapter 20, and Chapter 21 - Chapter 23.
Victor named several events that opened him to being "attacked by the fatal passion" that compelled him to create Adam:
- His mother died when he was young. Victor never recovered from the loss, described as an "irreparable evil", despite his heart no longer bleeding. His aim to conquer death was motivated by his inability to accept his mother's passing, as seen when her death is on his mind in his nightmare hours after bringing Adam to life:
>I thought that I held the corpse of my dead mother in my arms; a shroud enveloped her form, and I saw the grave-worms crawling in the folds of the flannel. I started from my
... keep reading on reddit ➡I don't want to step on anybody's toes here, but the amount of non-dad jokes here in this subreddit really annoys me. First of all, dad jokes CAN be NSFW, it clearly says so in the sub rules. Secondly, it doesn't automatically make it a dad joke if it's from a conversation between you and your child. Most importantly, the jokes that your CHILDREN tell YOU are not dad jokes. The point of a dad joke is that it's so cheesy only a dad who's trying to be funny would make such a joke. That's it. They are stupid plays on words, lame puns and so on. There has to be a clever pun or wordplay for it to be considered a dad joke.
Again, to all the fellow dads, I apologise if I'm sounding too harsh. But I just needed to get it off my chest.
The nurse asked the rabbit, “what is your blood type?”
“I am probably a type O” said the rabbit.
The doctor says it terminal.
Alot of great jokes get posted here! However just because you have a joke, doesn't mean it's a dad joke.
THIS IS NOT ABOUT NSFW, THIS IS ABOUT LONG JOKES, BLONDE JOKES, SEXUAL JOKES, KNOCK KNOCK JOKES, POLITICAL JOKES, ETC BEING POSTED IN A DAD JOKE SUB
Try telling these sexual jokes that get posted here, to your kid and see how your spouse likes it.. if that goes well, Try telling one of your friends kid about your sex life being like Coca cola, first it was normal, than light and now zero , and see if the parents are OK with you telling their kid the "dad joke"
I'm not even referencing the NSFW, I'm saying Dad jokes are corny, and sometimes painful, not sexual
So check out r/jokes for all types of jokes
r/unclejokes for dirty jokes
r/3amjokes for real weird and alot of OC
r/cleandadjokes If your really sick of seeing not dad jokes in r/dadjokes
Punchline !
Edit: this is not a post about NSFW , This is about jokes, knock knock jokes, blonde jokes, political jokes etc being posted in a dad joke sub
Edit 2: don't touch the thermostat
How the hell am I suppose to know when it’s raining in Sweden?
We told her she can lean on us for support. Although, we are going to have to change her driver's license, her height is going down by a foot. I don't want to go too far out on a limb here but it better not be a hack job.
Ants don’t even have the concept fathers, let alone a good dad joke. Keep r/ants out of my r/dadjokes.
But no, seriously. I understand rule 7 is great to have intelligent discussion, but sometimes it feels like 1 in 10 posts here is someone getting upset about the jokes on this sub. Let the mods deal with it, they regulate the sub.
They were cooked in Greece.
I'm surprised it hasn't decade.
Two muffins are in an oven, one muffin looks at the other and says "is it just me, or is it hot in here?"
Then the other muffin says "AHH, TALKING MUFFIN!!!"
Don't you know a good pun is its own reword?
For context I'm a Refuse Driver (Garbage man) & today I was on food waste. After I'd tipped I was checking the wagon for any defects when I spotted a lone pea balanced on the lifts.
I said "hey look, an escaPEA"
No one near me but it didn't half make me laugh for a good hour or so!
Edit: I can't believe how much this has blown up. Thank you everyone I've had a blast reading through the replies 😂
It really does, I swear!
And now I’m cannelloni
Because she wanted to see the task manager.
But that’s comparing apples to oranges
And boy are my arms legs.
Put it on my bill
Heard they've been doing some shady business.
Let me start by saying thank you again for following along with Mrs. Lady Zedd and I - we’d have done the 600 anyway (that’s just like us) but it wouldn’t have been near as much fun without you. If you haven’t already - Help Us Decide 2022 - I love a good poll.
For some reason, I thought typing the list out and giving some interesting ways to data-mine would be a quick, easy way to highlight the Movie Algorithm Project’s value and utility. By the time I’d worked out it wasn’t going to be quick I’d gone too far to quit (ha!) At any rate, in lieu of the end of month report, I present 2021’s Viewings in MAP order;
Best to Worst MAP Results
((95-100 - Exceptional))
99.95 - The Big Lebowski (1998)
99.86 - Harold and Maude (1971)
99.85 - The French Dispatch (2021)
99.78 - Avanti! (1972)
99.77 - The Goonies (1985)
99.74 - Pete Smalls is Dead (2010)
99.72 - The Empire Strikes Back, Unaltered (1980)
99.60 - Willy Wonka (1971)
99.60 - Raiders of the Lost Ark (1981)
99.44 - Star Trek II, Director’s Cut (1982)
99.43 - Popeye (1980)
99.36 - O Brother, Where Art Thou? (2000)
99.26 - Star Wars, Unaltered (1977)
99.25 - The Princess Bride (1987)
99.24 - The Secret of NIMH (1982)
99.14 - Defending Your Life (1991)
99.11 - McCabe and Mrs. Miller (1971)
98.96 - Pirate Radio (2009)
98.92 - E.T. The Extra-Terrestrial (1982)
98.92 - Close Encounters of the Third Kind, Director’s Cut (1977)
98.89 - Funny Farm (1998)
98.85 - The Homecoming: A Christmas Story (1971)
98.79 - Star Trek II, Theatrical Release (1982)
98.76 - Brewster McCloud (1970)
98.49 - Little Miss Sunshine (2006)
98.45 - Return of the Jedi (1983)
98.43 - My Neighbor Totoro (1988)
98.32 - The Rescuers (1977)
98.21 - Kubo and the Two Strings (2016)
98.14 - Star Trek: The Motion Picture (1979)
97.98 - Babette’s Feast (1987)
97.97 - National Lampoon’s Christmas Vacation (1989)
97.90 - 3 Women (1977)
97.85 - Mulholland Drive (2001)
97.83 - Spirited Away (2001)
97.71 - Excalibur (1981)
97.42 - The Shop Around the Corner (1940)
97.30 - Starman (1984)
97.09 - The Dark Crystal (1982)
97.07 - The Out of Towners (1970)
97.04 - Howl’s Moving Castle (2094)
97.00 - Midsommar (2019)
96.95 - Hot Rod (2007)
96.80 - The Shape of Water (2017)
96.47 - Ponya (2008)
96.47 - Kirikou and the Men and Women (2012)
96.20 -
... keep reading on reddit ➡
but then I remembered it was ground this morning.
Edit: Thank you guys for the awards, they're much nicer than the cardboard sleeve I've been using and reassures me that my jokes aren't stale
Edit 2: I have already been made aware that Men In Black 3 has told a version of this joke before. If the joke is not new to you, please enjoy any of the single origin puns in the comments
Amy
They’re on standbi
A play on words.
Do your worst!
He lost May
Now that I listen to albums, I hardly ever leave the house.
